1 /*
2  * Copyright (c) 2019, 2020 Tracey Emery <tracey@traceyemery.net>
3  * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <sys/queue.h>
19 #include <sys/stat.h>
20 #include <sys/types.h>
21 
22 #include <ctype.h>
23 #include <dirent.h>
24 #include <err.h>
25 #include <errno.h>
26 #include <regex.h>
27 #include <stdarg.h>
28 #include <stdint.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <unistd.h>
33 
34 #include <got_object.h>
35 #include <got_reference.h>
36 #include <got_repository.h>
37 #include <got_path.h>
38 #include <got_cancel.h>
39 #include <got_worktree.h>
40 #include <got_diff.h>
41 #include <got_commit_graph.h>
42 #include <got_blame.h>
43 #include <got_privsep.h>
44 #include <got_opentemp.h>
45 
46 #include <kcgi.h>
47 #include <kcgihtml.h>
48 
49 #include "gotweb.h"
50 
51 #ifndef nitems
52 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
53 #endif
54 
55 struct gw_trans {
56 	TAILQ_HEAD(headers, gw_header)	 gw_headers;
57 	TAILQ_HEAD(dirs, gw_dir)	 gw_dirs;
58 	struct got_repository	*repo;
59 	struct gw_dir		*gw_dir;
60 	struct gotweb_conf	*gw_conf;
61 	struct ktemplate	*gw_tmpl;
62 	struct khtmlreq		*gw_html_req;
63 	struct kreq		*gw_req;
64 	const struct got_error	*error;
65 	const char		*repo_name;
66 	char			*repo_path;
67 	char			*commit_id;
68 	const char		*repo_file;
69 	char			*repo_folder;
70 	const char		*headref;
71 	unsigned int		 action;
72 	unsigned int		 page;
73 	unsigned int		 repos_total;
74 	enum kmime		 mime;
75 };
76 
77 struct gw_header {
78 	TAILQ_ENTRY(gw_header)		 entry;
79 	struct got_reflist_head		 refs;
80 	char				*path;
81 
82 	char			*refs_str;
83 	char			*commit_id; /* id_str1 */
84 	char			*parent_id; /* id_str2 */
85 	char			*tree_id;
86 	char			*author;
87 	char			*committer;
88 	char			*commit_msg;
89 	time_t			 committer_time;
90 };
91 
92 struct gw_dir {
93 	TAILQ_ENTRY(gw_dir)	 entry;
94 	char			*name;
95 	char			*owner;
96 	char			*description;
97 	char			*url;
98 	char			*age;
99 	char			*path;
100 };
101 
102 enum gw_key {
103 	KEY_ACTION,
104 	KEY_COMMIT_ID,
105 	KEY_FILE,
106 	KEY_FOLDER,
107 	KEY_HEADREF,
108 	KEY_PAGE,
109 	KEY_PATH,
110 	KEY__ZMAX
111 };
112 
113 enum gw_tmpl {
114 	TEMPL_CONTENT,
115 	TEMPL_HEAD,
116 	TEMPL_HEADER,
117 	TEMPL_SEARCH,
118 	TEMPL_SITEPATH,
119 	TEMPL_SITEOWNER,
120 	TEMPL_TITLE,
121 	TEMPL__MAX
122 };
123 
124 enum gw_ref_tm {
125 	TM_DIFF,
126 	TM_LONG,
127 };
128 
129 enum gw_tags {
130 	TAGBRIEF,
131 	TAGFULL,
132 };
133 
134 static const char *const gw_templs[TEMPL__MAX] = {
135 	"content",
136 	"head",
137 	"header",
138 	"search",
139 	"sitepath",
140 	"siteowner",
141 	"title",
142 };
143 
144 static const struct kvalid gw_keys[KEY__ZMAX] = {
145 	{ kvalid_stringne,	"action" },
146 	{ kvalid_stringne,	"commit" },
147 	{ kvalid_stringne,	"file" },
148 	{ kvalid_stringne,	"folder" },
149 	{ kvalid_stringne,	"headref" },
150 	{ kvalid_int,		"page" },
151 	{ kvalid_stringne,	"path" },
152 };
153 
154 static struct gw_header		*gw_init_header(void);
155 
156 static void			 gw_free_header(struct gw_header *);
157 
158 static int			 gw_template(size_t, void *);
159 
160 static const struct got_error	*gw_error(struct gw_trans *);
161 static const struct got_error	*gw_init_gw_dir(struct gw_dir **, const char *);
162 static const struct got_error	*gw_get_repo_description(char **,
163 				    struct gw_trans *, char *);
164 static const struct got_error	*gw_get_repo_owner(char **, struct gw_trans *,
165 				    char *);
166 static const struct got_error	*gw_get_time_str(char **, time_t, int);
167 static const struct got_error	*gw_get_repo_age(char **, struct gw_trans *,
168 				    char *, const char *, int);
169 static const struct got_error	*gw_output_file_blame(struct gw_trans *);
170 static const struct got_error	*gw_output_blob_buf(struct gw_trans *);
171 static const struct got_error	*gw_output_repo_tree(struct gw_trans *);
172 static const struct got_error	*gw_output_diff(struct gw_trans *,
173 				    struct gw_header *);
174 static const struct got_error	*gw_output_repo_tags(struct gw_trans *,
175 				    struct gw_header *, int, int);
176 static const struct got_error	*gw_output_repo_heads(struct gw_trans *);
177 static const struct got_error	*gw_output_site_link(struct gw_trans *);
178 static const struct got_error	*gw_get_clone_url(char **, struct gw_trans *,
179 				    char *);
180 static const struct got_error	*gw_colordiff_line(struct gw_trans *, char *);
181 
182 static const struct got_error	*gw_gen_commit_header(struct gw_trans *, char *,
183 				    char*);
184 static const struct got_error	*gw_gen_diff_header(struct gw_trans *, char *,
185 				    char*);
186 static const struct got_error	*gw_gen_author_header(struct gw_trans *,
187 				    const char *);
188 static const struct got_error	*gw_gen_age_header(struct gw_trans *,
189 				    const char *);
190 static const struct got_error	*gw_gen_committer_header(struct gw_trans *,
191 				    const char *);
192 static const struct got_error	*gw_gen_commit_msg_header(struct gw_trans*,
193 				    char *);
194 static const struct got_error	*gw_gen_tree_header(struct gw_trans *, char *);
195 static const struct got_error	*gw_display_open(struct gw_trans *, enum khttp,
196 				    enum kmime);
197 static const struct got_error	*gw_display_index(struct gw_trans *);
198 static const struct got_error	*gw_get_header(struct gw_trans *,
199 				    struct gw_header *, int);
200 static const struct got_error	*gw_get_commits(struct gw_trans *,
201 				    struct gw_header *, int,
202 				    struct got_object_id *);
203 static const struct got_error	*gw_get_commit(struct gw_trans *,
204 				    struct gw_header *,
205 				    struct got_commit_object *,
206 				    struct got_object_id *);
207 static const struct got_error	*gw_apply_unveil(const char *);
208 static const struct got_error	*gw_blame_cb(void *, int, int,
209 				    struct got_object_id *);
210 static const struct got_error	*gw_load_got_paths(struct gw_trans *);
211 static const struct got_error	*gw_load_got_path(struct gw_trans *,
212 				    struct gw_dir *);
213 static const struct got_error	*gw_parse_querystring(struct gw_trans *);
214 static const struct got_error	*gw_blame(struct gw_trans *);
215 static const struct got_error	*gw_blob(struct gw_trans *);
216 static const struct got_error	*gw_diff(struct gw_trans *);
217 static const struct got_error	*gw_index(struct gw_trans *);
218 static const struct got_error	*gw_commits(struct gw_trans *);
219 static const struct got_error	*gw_briefs(struct gw_trans *);
220 static const struct got_error	*gw_summary(struct gw_trans *);
221 static const struct got_error	*gw_tree(struct gw_trans *);
222 static const struct got_error	*gw_tag(struct gw_trans *);
223 
224 struct gw_query_action {
225 	unsigned int		 func_id;
226 	const char		*func_name;
227 	const struct got_error	*(*func_main)(struct gw_trans *);
228 	char			*template;
229 };
230 
231 enum gw_query_actions {
232 	GW_BLAME,
233 	GW_BLOB,
234 	GW_BRIEFS,
235 	GW_COMMITS,
236 	GW_DIFF,
237 	GW_ERR,
238 	GW_INDEX,
239 	GW_SUMMARY,
240 	GW_TAG,
241 	GW_TREE,
242 };
243 
244 static struct gw_query_action gw_query_funcs[] = {
245 	{ GW_BLAME,	"blame",	gw_blame,	"gw_tmpl/blame.tmpl" },
246 	{ GW_BLOB,	"blob",		NULL,		NULL },
247 	{ GW_BRIEFS,	"briefs",	gw_briefs,	"gw_tmpl/briefs.tmpl" },
248 	{ GW_COMMITS,	"commits",	gw_commits,	"gw_tmpl/commit.tmpl" },
249 	{ GW_DIFF,	"diff",		gw_diff,	"gw_tmpl/diff.tmpl" },
250 	{ GW_ERR,	"error",	gw_error,	"gw_tmpl/err.tmpl" },
251 	{ GW_INDEX,	"index",	gw_index,	"gw_tmpl/index.tmpl" },
252 	{ GW_SUMMARY,	"summary",	gw_summary,	"gw_tmpl/summry.tmpl" },
253 	{ GW_TAG,	"tag",		gw_tag,		"gw_tmpl/tag.tmpl" },
254 	{ GW_TREE,	"tree",		gw_tree,	"gw_tmpl/tree.tmpl" },
255 };
256 
257 static const char * 
258 gw_get_action_name(struct gw_trans *gw_trans)
259 {
260 	return gw_query_funcs[gw_trans->action].func_name;
261 }
262 
263 static const struct got_error *
264 gw_kcgi_error(enum kcgi_err kerr)
265 {
266 	if (kerr == KCGI_OK)
267 		return NULL;
268 
269 	if (kerr == KCGI_EXIT || kerr == KCGI_HUP)
270 		return got_error(GOT_ERR_CANCELLED);
271 
272 	if (kerr == KCGI_ENOMEM)
273 		return got_error_set_errno(ENOMEM,
274 		    kcgi_strerror(kerr));
275 
276 	if (kerr == KCGI_ENFILE)
277 		return got_error_set_errno(ENFILE,
278 		    kcgi_strerror(kerr));
279 
280 	if (kerr == KCGI_EAGAIN)
281 		return got_error_set_errno(EAGAIN,
282 		    kcgi_strerror(kerr));
283 
284 	if (kerr == KCGI_FORM)
285 		return got_error_msg(GOT_ERR_IO,
286 		    kcgi_strerror(kerr));
287 
288 	return got_error_from_errno(kcgi_strerror(kerr));
289 }
290 
291 static const struct got_error *
292 gw_apply_unveil(const char *repo_path)
293 {
294 	const struct got_error *err;
295 
296 	if (repo_path && unveil(repo_path, "r") != 0)
297 		return got_error_from_errno2("unveil", repo_path);
298 
299 	if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
300 		return got_error_from_errno2("unveil", GOT_TMPDIR_STR);
301 
302 	err = got_privsep_unveil_exec_helpers();
303 	if (err != NULL)
304 		return err;
305 
306 	if (unveil(NULL, NULL) != 0)
307 		return got_error_from_errno("unveil");
308 
309 	return NULL;
310 }
311 
312 static int
313 isbinary(const uint8_t *buf, size_t n)
314 {
315 	size_t i;
316 
317 	for (i = 0; i < n; i++)
318 		if (buf[i] == 0)
319 			return 1;
320 	return 0;
321 }
322 
323 static const struct got_error *
324 gw_blame(struct gw_trans *gw_trans)
325 {
326 	const struct got_error *error = NULL;
327 	struct gw_header *header = NULL;
328 	char *age = NULL;
329 	enum kcgi_err kerr = KCGI_OK;
330 
331 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
332 	    NULL) == -1)
333 		return got_error_from_errno("pledge");
334 
335 	if ((header = gw_init_header()) == NULL)
336 		return got_error_from_errno("malloc");
337 
338 	error = gw_apply_unveil(gw_trans->gw_dir->path);
339 	if (error)
340 		goto done;
341 
342 	/* check querystring */
343 	if (gw_trans->repo_file == NULL) {
344 		error = got_error_msg(GOT_ERR_QUERYSTRING,
345 		    "file required in querystring");
346 		goto done;
347 	}
348 	if (gw_trans->commit_id == NULL) {
349 		error = got_error_msg(GOT_ERR_QUERYSTRING,
350 		    "commit required in querystring");
351 		goto done;
352 	}
353 
354 	error = gw_get_header(gw_trans, header, 1);
355 	if (error)
356 		goto done;
357 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
358 	    "blame_header_wrapper", KATTR__MAX);
359 	if (kerr != KCGI_OK)
360 		goto done;
361 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
362 	    "blame_header", KATTR__MAX);
363 	if (kerr != KCGI_OK)
364 		goto done;
365 	error = gw_get_time_str(&age, header->committer_time,
366 	    TM_LONG);
367 	if (error)
368 		goto done;
369 	error = gw_gen_age_header(gw_trans, age ?age : "");
370 	if (error)
371 		goto done;
372 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
373 	if (error)
374 		goto done;
375 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
376 	if (kerr != KCGI_OK)
377 		goto done;
378 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
379 	    "dotted_line", KATTR__MAX);
380 	if (kerr != KCGI_OK)
381 		goto done;
382 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
383 	if (kerr != KCGI_OK)
384 		goto done;
385 
386 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
387 	    "blame", KATTR__MAX);
388 	if (kerr != KCGI_OK)
389 		goto done;
390 	error = gw_output_file_blame(gw_trans);
391 	if (error)
392 		goto done;
393 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
394 done:
395 	gw_free_header(header);
396 	if (error == NULL && kerr != KCGI_OK)
397 		error = gw_kcgi_error(kerr);
398 	return error;
399 }
400 
401 static const struct got_error *
402 gw_blob(struct gw_trans *gw_trans)
403 {
404 	const struct got_error *error = NULL, *err = NULL;
405 	struct gw_header *header = NULL;
406 	enum kcgi_err kerr = KCGI_OK;
407 
408 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
409 	    NULL) == -1)
410 		return got_error_from_errno("pledge");
411 
412 	if ((header = gw_init_header()) == NULL)
413 		return got_error_from_errno("malloc");
414 
415 	error = gw_apply_unveil(gw_trans->gw_dir->path);
416 	if (error)
417 		goto done;
418 
419 	/* check querystring */
420 	if (gw_trans->repo_file == NULL) {
421 		error = got_error_msg(GOT_ERR_QUERYSTRING,
422 		    "file required in querystring");
423 		goto done;
424 	}
425 	if (gw_trans->commit_id == NULL) {
426 		error = got_error_msg(GOT_ERR_QUERYSTRING,
427 		    "commit required in querystring");
428 		goto done;
429 	}
430 	error = gw_get_header(gw_trans, header, 1);
431 	if (error)
432 		goto done;
433 
434 	error = gw_output_blob_buf(gw_trans);
435 done:
436 
437 	if (error) {
438 		gw_trans->mime = KMIME_TEXT_PLAIN;
439 		err = gw_display_index(gw_trans);
440 		if (err) {
441 			error = err;
442 			goto errored;
443 		}
444 		kerr = khttp_puts(gw_trans->gw_req, error->msg);
445 	}
446 errored:
447 	gw_free_header(header);
448 	if (error == NULL && kerr != KCGI_OK)
449 		error = gw_kcgi_error(kerr);
450 	return error;
451 }
452 
453 static const struct got_error *
454 gw_diff(struct gw_trans *gw_trans)
455 {
456 	const struct got_error *error = NULL;
457 	struct gw_header *header = NULL;
458 	char *age = NULL;
459 	enum kcgi_err kerr = KCGI_OK;
460 
461 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
462 	    NULL) == -1)
463 		return got_error_from_errno("pledge");
464 
465 	if ((header = gw_init_header()) == NULL)
466 		return got_error_from_errno("malloc");
467 
468 	error = gw_apply_unveil(gw_trans->gw_dir->path);
469 	if (error)
470 		goto done;
471 
472 	error = gw_get_header(gw_trans, header, 1);
473 	if (error)
474 		goto done;
475 
476 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
477 	    "diff_header_wrapper", KATTR__MAX);
478 	if (kerr != KCGI_OK)
479 		goto done;
480 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
481 	    "diff_header", KATTR__MAX);
482 	if (kerr != KCGI_OK)
483 		goto done;
484 	error = gw_gen_diff_header(gw_trans, header->parent_id,
485 	    header->commit_id);
486 	if (error)
487 		goto done;
488 	error = gw_gen_commit_header(gw_trans, header->commit_id,
489 	    header->refs_str);
490 	if (error)
491 		goto done;
492 	error = gw_gen_tree_header(gw_trans, header->tree_id);
493 	if (error)
494 		goto done;
495 	error = gw_gen_author_header(gw_trans, header->author);
496 	if (error)
497 		goto done;
498 	error = gw_gen_committer_header(gw_trans, header->author);
499 	if (error)
500 		goto done;
501 	error = gw_get_time_str(&age, header->committer_time,
502 	    TM_LONG);
503 	if (error)
504 		goto done;
505 	error = gw_gen_age_header(gw_trans, age ?age : "");
506 	if (error)
507 		goto done;
508 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
509 	if (error)
510 		goto done;
511 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
512 	if (kerr != KCGI_OK)
513 		goto done;
514 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
515 	    "dotted_line", KATTR__MAX);
516 	if (kerr != KCGI_OK)
517 		goto done;
518 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
519 	if (kerr != KCGI_OK)
520 		goto done;
521 
522 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
523 	    "diff", KATTR__MAX);
524 	if (kerr != KCGI_OK)
525 		goto done;
526 	error = gw_output_diff(gw_trans, header);
527 	if (error)
528 		goto done;
529 
530 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
531 done:
532 	gw_free_header(header);
533 	free(age);
534 	if (error == NULL && kerr != KCGI_OK)
535 		error = gw_kcgi_error(kerr);
536 	return error;
537 }
538 
539 static const struct got_error *
540 gw_index(struct gw_trans *gw_trans)
541 {
542 	const struct got_error *error = NULL;
543 	struct gw_dir *gw_dir = NULL;
544 	char *href_next = NULL, *href_prev = NULL, *href_summary = NULL;
545 	char *href_briefs = NULL, *href_commits = NULL, *href_tree = NULL;
546 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
547 	enum kcgi_err kerr;
548 
549 	if (pledge("stdio rpath proc exec sendfd unveil",
550 	    NULL) == -1) {
551 		error = got_error_from_errno("pledge");
552 		return error;
553 	}
554 
555 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path);
556 	if (error)
557 		return error;
558 
559 	error = gw_load_got_paths(gw_trans);
560 	if (error)
561 		return error;
562 
563 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
564 	    "index_header", KATTR__MAX);
565 	if (kerr != KCGI_OK)
566 		return gw_kcgi_error(kerr);
567 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
568 	    "index_header_project", KATTR__MAX);
569 	if (kerr != KCGI_OK)
570 		return gw_kcgi_error(kerr);
571 	kerr = khtml_puts(gw_trans->gw_html_req, "Project");
572 	if (kerr != KCGI_OK)
573 		return gw_kcgi_error(kerr);
574 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
575 	if (kerr != KCGI_OK)
576 		return gw_kcgi_error(kerr);
577 
578 	if (gw_trans->gw_conf->got_show_repo_description) {
579 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
580 		    "index_header_description", KATTR__MAX);
581 		if (kerr != KCGI_OK)
582 			return gw_kcgi_error(kerr);
583 		kerr = khtml_puts(gw_trans->gw_html_req, "Description");
584 		if (kerr != KCGI_OK)
585 			return gw_kcgi_error(kerr);
586 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
587 		if (kerr != KCGI_OK)
588 			return gw_kcgi_error(kerr);
589 	}
590 
591 	if (gw_trans->gw_conf->got_show_repo_owner) {
592 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
593 		    "index_header_owner", KATTR__MAX);
594 		if (kerr != KCGI_OK)
595 			return gw_kcgi_error(kerr);
596 		kerr = khtml_puts(gw_trans->gw_html_req, "Owner");
597 		if (kerr != KCGI_OK)
598 			return gw_kcgi_error(kerr);
599 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
600 		if (kerr != KCGI_OK)
601 			return gw_kcgi_error(kerr);
602 	}
603 
604 	if (gw_trans->gw_conf->got_show_repo_age) {
605 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
606 		    "index_header_age", KATTR__MAX);
607 		if (kerr != KCGI_OK)
608 			return gw_kcgi_error(kerr);
609 		kerr = khtml_puts(gw_trans->gw_html_req, "Last Change");
610 		if (kerr != KCGI_OK)
611 			return gw_kcgi_error(kerr);
612 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
613 		if (kerr != KCGI_OK)
614 			return gw_kcgi_error(kerr);
615 	}
616 
617 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
618 	if (kerr != KCGI_OK)
619 		return gw_kcgi_error(kerr);
620 
621 	if (TAILQ_EMPTY(&gw_trans->gw_dirs)) {
622 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
623 		    "index_wrapper", KATTR__MAX);
624 		if (kerr != KCGI_OK)
625 			return gw_kcgi_error(kerr);
626 		kerr = khtml_puts(gw_trans->gw_html_req,
627 		    "No repositories found in ");
628 		if (kerr != KCGI_OK)
629 			return gw_kcgi_error(kerr);
630 		kerr = khtml_puts(gw_trans->gw_html_req,
631 		    gw_trans->gw_conf->got_repos_path);
632 		if (kerr != KCGI_OK)
633 			return gw_kcgi_error(kerr);
634 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
635 		if (kerr != KCGI_OK)
636 			return gw_kcgi_error(kerr);
637 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
638 		    "dotted_line", KATTR__MAX);
639 		if (kerr != KCGI_OK)
640 			return gw_kcgi_error(kerr);
641 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
642 		if (kerr != KCGI_OK)
643 			return gw_kcgi_error(kerr);
644 		return error;
645 	}
646 
647 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
648 		dir_c++;
649 
650 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
651 		if (gw_trans->page > 0 && (gw_trans->page *
652 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
653 			prev_disp++;
654 			continue;
655 		}
656 
657 		prev_disp++;
658 
659 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
660 		    "index_wrapper", KATTR__MAX);
661 		if (kerr != KCGI_OK)
662 			goto done;
663 
664 		if (asprintf(&href_summary, "?path=%s&action=summary",
665 		    gw_dir->name) == -1) {
666 			error = got_error_from_errno("asprintf");
667 			goto done;
668 		}
669 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
670 		    "index_project", KATTR__MAX);
671 		if (kerr != KCGI_OK)
672 			goto done;
673 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
674 		    href_summary, KATTR__MAX);
675 		if (kerr != KCGI_OK)
676 			goto done;
677 		kerr = khtml_puts(gw_trans->gw_html_req, gw_dir->name);
678 		if (kerr != KCGI_OK)
679 			goto done;
680 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
681 		if (kerr != KCGI_OK)
682 			goto done;
683 		if (gw_trans->gw_conf->got_show_repo_description) {
684 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
685 			    KATTR_ID, "index_project_description", KATTR__MAX);
686 			if (kerr != KCGI_OK)
687 				goto done;
688 			kerr = khtml_puts(gw_trans->gw_html_req,
689 			    gw_dir->description ? gw_dir->description : "");
690 			if (kerr != KCGI_OK)
691 				goto done;
692 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
693 			if (kerr != KCGI_OK)
694 				goto done;
695 		}
696 		if (gw_trans->gw_conf->got_show_repo_owner) {
697 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
698 			    KATTR_ID, "index_project_owner", KATTR__MAX);
699 			if (kerr != KCGI_OK)
700 				goto done;
701 			kerr = khtml_puts(gw_trans->gw_html_req,
702 			    gw_dir->owner ? gw_dir->owner : "");
703 			if (kerr != KCGI_OK)
704 				goto done;
705 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
706 			if (kerr != KCGI_OK)
707 				goto done;
708 		}
709 		if (gw_trans->gw_conf->got_show_repo_age) {
710 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
711 			    KATTR_ID, "index_project_age", KATTR__MAX);
712 			if (kerr != KCGI_OK)
713 				goto done;
714 			kerr = khtml_puts(gw_trans->gw_html_req,
715 			    gw_dir->age ? gw_dir->age : "");
716 			if (kerr != KCGI_OK)
717 				goto done;
718 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
719 			if (kerr != KCGI_OK)
720 				goto done;
721 		}
722 
723 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
724 		    "navs_wrapper", KATTR__MAX);
725 		if (kerr != KCGI_OK)
726 			goto done;
727 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
728 		    "navs", KATTR__MAX);
729 		if (kerr != KCGI_OK)
730 			goto done;
731 
732 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
733 		    href_summary, KATTR__MAX);
734 		if (kerr != KCGI_OK)
735 			goto done;
736 		kerr = khtml_puts(gw_trans->gw_html_req, "summary");
737 		if (kerr != KCGI_OK)
738 			goto done;
739 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
740 		if (kerr != KCGI_OK)
741 			goto done;
742 
743 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
744 		if (kerr != KCGI_OK)
745 			goto done;
746 
747 		if (asprintf(&href_briefs, "?path=%s&action=briefs",
748 		    gw_dir->name) == -1) {
749 			error = got_error_from_errno("asprintf");
750 			goto done;
751 		}
752 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
753 		    href_briefs, KATTR__MAX);
754 		if (kerr != KCGI_OK)
755 			goto done;
756 		kerr = khtml_puts(gw_trans->gw_html_req, "commit briefs");
757 		if (kerr != KCGI_OK)
758 			goto done;
759 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
760 		if (kerr != KCGI_OK)
761 			error = gw_kcgi_error(kerr);
762 
763 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
764 		if (kerr != KCGI_OK)
765 			goto done;
766 
767 		if (asprintf(&href_commits, "?path=%s&action=commits",
768 		    gw_dir->name) == -1) {
769 			error = got_error_from_errno("asprintf");
770 			goto done;
771 		}
772 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
773 		    href_commits, KATTR__MAX);
774 		if (kerr != KCGI_OK)
775 			goto done;
776 		kerr = khtml_puts(gw_trans->gw_html_req, "commits");
777 		if (kerr != KCGI_OK)
778 			goto done;
779 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
780 		if (kerr != KCGI_OK)
781 			goto done;
782 
783 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
784 		if (kerr != KCGI_OK)
785 			goto done;
786 
787 		if (asprintf(&href_tree, "?path=%s&action=tree",
788 		    gw_dir->name) == -1) {
789 			error = got_error_from_errno("asprintf");
790 			goto done;
791 		}
792 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
793 		    href_tree, KATTR__MAX);
794 		if (kerr != KCGI_OK)
795 			goto done;
796 		kerr = khtml_puts(gw_trans->gw_html_req, "tree");
797 		if (kerr != KCGI_OK)
798 			goto done;
799 
800 		kerr = khtml_closeelem(gw_trans->gw_html_req, 4);
801 		if (kerr != KCGI_OK)
802 			goto done;
803 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
804 		    "dotted_line", KATTR__MAX);
805 		if (kerr != KCGI_OK)
806 			goto done;
807 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
808 		if (kerr != KCGI_OK)
809 			goto done;
810 
811 		free(href_summary);
812 		href_summary = NULL;
813 		free(href_briefs);
814 		href_briefs = NULL;
815 		free(href_commits);
816 		href_commits = NULL;
817 		free(href_tree);
818 		href_tree = NULL;
819 
820 		if (gw_trans->gw_conf->got_max_repos_display == 0)
821 			continue;
822 
823 		if (next_disp == gw_trans->gw_conf->got_max_repos_display) {
824 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
825 			    KATTR_ID, "np_wrapper", KATTR__MAX);
826 			if (kerr != KCGI_OK)
827 				goto done;
828 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
829 			    KATTR_ID, "nav_prev", KATTR__MAX);
830 			if (kerr != KCGI_OK)
831 				goto done;
832 		} else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
833 		    (gw_trans->page > 0) &&
834 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
835 		    prev_disp == gw_trans->repos_total)) {
836 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
837 			    KATTR_ID, "np_wrapper", KATTR__MAX);
838 			if (kerr != KCGI_OK)
839 				goto done;
840 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
841 			    KATTR_ID, "nav_prev", KATTR__MAX);
842 			if (kerr != KCGI_OK)
843 				goto done;
844 		}
845 
846 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
847 		    (gw_trans->page > 0) &&
848 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
849 		    prev_disp == gw_trans->repos_total)) {
850 			if (asprintf(&href_prev, "?page=%d",
851 			    gw_trans->page - 1) == -1) {
852 				error = got_error_from_errno("asprintf");
853 				goto done;
854 			}
855 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
856 			    KATTR_HREF, href_prev, KATTR__MAX);
857 			if (kerr != KCGI_OK)
858 				goto done;
859 			kerr = khtml_puts(gw_trans->gw_html_req, "Previous");
860 			if (kerr != KCGI_OK)
861 				goto done;
862 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
863 			if (kerr != KCGI_OK)
864 				goto done;
865 		}
866 
867 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
868 		if (kerr != KCGI_OK)
869 			return gw_kcgi_error(kerr);
870 
871 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
872 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
873 		    dir_c != (gw_trans->page + 1) *
874 		    gw_trans->gw_conf->got_max_repos_display) {
875 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
876 			    KATTR_ID, "nav_next", KATTR__MAX);
877 			if (kerr != KCGI_OK)
878 				goto done;
879 			if (asprintf(&href_next, "?page=%d",
880 			    gw_trans->page + 1) == -1) {
881 				error = got_error_from_errno("calloc");
882 				goto done;
883 			}
884 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
885 			    KATTR_HREF, href_next, KATTR__MAX);
886 			if (kerr != KCGI_OK)
887 				goto done;
888 			kerr = khtml_puts(gw_trans->gw_html_req, "Next");
889 			if (kerr != KCGI_OK)
890 				goto done;
891 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
892 			if (kerr != KCGI_OK)
893 				goto done;
894 			next_disp = 0;
895 			break;
896 		}
897 
898 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
899 		    (gw_trans->page > 0) &&
900 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
901 		    prev_disp == gw_trans->repos_total)) {
902 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
903 			if (kerr != KCGI_OK)
904 				goto done;
905 		}
906 		next_disp++;
907 	}
908 done:
909 	free(href_prev);
910 	free(href_next);
911 	free(href_summary);
912 	free(href_briefs);
913 	free(href_commits);
914 	free(href_tree);
915 	if (error == NULL && kerr != KCGI_OK)
916 		error = gw_kcgi_error(kerr);
917 	return error;
918 }
919 
920 static const struct got_error *
921 gw_commits(struct gw_trans *gw_trans)
922 {
923 	const struct got_error *error = NULL;
924 	struct gw_header *header = NULL, *n_header = NULL;
925 	char *age = NULL;
926 	char *href_diff = NULL, *href_blob = NULL;
927 	enum kcgi_err kerr = KCGI_OK;
928 
929 	if ((header = gw_init_header()) == NULL)
930 		return got_error_from_errno("malloc");
931 
932 	if (pledge("stdio rpath proc exec sendfd unveil",
933 	    NULL) == -1) {
934 		error = got_error_from_errno("pledge");
935 		goto done;
936 	}
937 
938 	error = gw_apply_unveil(gw_trans->gw_dir->path);
939 	if (error)
940 		goto done;
941 
942 	error = gw_get_header(gw_trans, header,
943 	    gw_trans->gw_conf->got_max_commits_display);
944 	if (error)
945 		goto done;
946 
947 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
948 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
949 		    "commits_line_wrapper", KATTR__MAX);
950 		if (kerr != KCGI_OK)
951 			goto done;
952 		error = gw_gen_commit_header(gw_trans, n_header->commit_id,
953 		    n_header->refs_str);
954 		if (error)
955 			goto done;
956 		error = gw_gen_author_header(gw_trans, n_header->author);
957 		if (error)
958 			goto done;
959 		error = gw_gen_committer_header(gw_trans, n_header->author);
960 		if (error)
961 			goto done;
962 		error = gw_get_time_str(&age, n_header->committer_time,
963 		    TM_LONG);
964 		if (error)
965 			goto done;
966 		error = gw_gen_age_header(gw_trans, age ?age : "");
967 		if (error)
968 			goto done;
969 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
970 		if (kerr != KCGI_OK)
971 			goto done;
972 
973 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
974 		    "dotted_line", KATTR__MAX);
975 		if (kerr != KCGI_OK)
976 			goto done;
977 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
978 		if (kerr != KCGI_OK)
979 			goto done;
980 
981 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
982 		    "commit", KATTR__MAX);
983 		if (kerr != KCGI_OK)
984 			goto done;
985 		kerr = khttp_puts(gw_trans->gw_req, n_header->commit_msg);
986 		if (kerr != KCGI_OK)
987 			goto done;
988 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
989 		if (kerr != KCGI_OK)
990 			goto done;
991 
992 		if (asprintf(&href_diff, "?path=%s&action=diff&commit=%s",
993 		    gw_trans->repo_name, n_header->commit_id) == -1) {
994 			error = got_error_from_errno("asprintf");
995 			goto done;
996 		}
997 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
998 		    KATTR_ID, "navs_wrapper", KATTR__MAX);
999 		if (kerr != KCGI_OK)
1000 			goto done;
1001 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1002 		    KATTR_ID, "navs", KATTR__MAX);
1003 		if (kerr != KCGI_OK)
1004 			goto done;
1005 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1006 		    KATTR_HREF, href_diff, KATTR__MAX);
1007 		if (kerr != KCGI_OK)
1008 			goto done;
1009 		kerr = khtml_puts(gw_trans->gw_html_req, "diff");
1010 		if (kerr != KCGI_OK)
1011 			goto done;
1012 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1013 		if (kerr != KCGI_OK)
1014 			goto done;
1015 
1016 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
1017 		if (kerr != KCGI_OK)
1018 			goto done;
1019 
1020 		if (asprintf(&href_blob, "?path=%s&action=tree&commit=%s",
1021 		    gw_trans->repo_name, n_header->commit_id) == -1) {
1022 			error = got_error_from_errno("asprintf");
1023 			goto done;
1024 		}
1025 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1026 		    KATTR_HREF, href_blob, KATTR__MAX);
1027 		if (kerr != KCGI_OK)
1028 			goto done;
1029 		khtml_puts(gw_trans->gw_html_req, "tree");
1030 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1031 		if (kerr != KCGI_OK)
1032 			goto done;
1033 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1034 		if (kerr != KCGI_OK)
1035 			goto done;
1036 
1037 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1038 		    "solid_line", KATTR__MAX);
1039 		if (kerr != KCGI_OK)
1040 			goto done;
1041 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1042 		if (kerr != KCGI_OK)
1043 			goto done;
1044 
1045 		free(age);
1046 		age = NULL;
1047 	}
1048 done:
1049 	gw_free_header(header);
1050 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
1051 		gw_free_header(n_header);
1052 	free(age);
1053 	free(href_diff);
1054 	free(href_blob);
1055 	if (error == NULL && kerr != KCGI_OK)
1056 		error = gw_kcgi_error(kerr);
1057 	return error;
1058 }
1059 
1060 static const struct got_error *
1061 gw_briefs(struct gw_trans *gw_trans)
1062 {
1063 	const struct got_error *error = NULL;
1064 	struct gw_header *header = NULL, *n_header = NULL;
1065 	char *age = NULL;
1066 	char *href_diff = NULL, *href_blob = NULL;
1067 	char *newline, *smallerthan;
1068 	enum kcgi_err kerr = KCGI_OK;
1069 
1070 	if ((header = gw_init_header()) == NULL)
1071 		return got_error_from_errno("malloc");
1072 
1073 	if (pledge("stdio rpath proc exec sendfd unveil",
1074 	    NULL) == -1) {
1075 		error = got_error_from_errno("pledge");
1076 		goto done;
1077 	}
1078 
1079 	if (gw_trans->action != GW_SUMMARY) {
1080 		error = gw_apply_unveil(gw_trans->gw_dir->path);
1081 		if (error)
1082 			goto done;
1083 	}
1084 
1085 	if (gw_trans->action == GW_SUMMARY)
1086 		error = gw_get_header(gw_trans, header, D_MAXSLCOMMDISP);
1087 	else
1088 		error = gw_get_header(gw_trans, header,
1089 		    gw_trans->gw_conf->got_max_commits_display);
1090 	if (error)
1091 		goto done;
1092 
1093 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
1094 		error = gw_get_time_str(&age, n_header->committer_time,
1095 		    TM_DIFF);
1096 		if (error)
1097 			goto done;
1098 
1099 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1100 		    KATTR_ID, "briefs_wrapper", KATTR__MAX);
1101 		if (kerr != KCGI_OK)
1102 			goto done;
1103 
1104 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1105 		    KATTR_ID, "briefs_age", KATTR__MAX);
1106 		if (kerr != KCGI_OK)
1107 			goto done;
1108 		kerr = khtml_puts(gw_trans->gw_html_req, age ? age : "");
1109 		if (kerr != KCGI_OK)
1110 			goto done;
1111 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1112 		if (kerr != KCGI_OK)
1113 			goto done;
1114 
1115 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1116 		    KATTR_ID, "briefs_author", KATTR__MAX);
1117 		if (kerr != KCGI_OK)
1118 			goto done;
1119 		smallerthan = strchr(n_header->author, '<');
1120 		if (smallerthan)
1121 			*smallerthan = '\0';
1122 		kerr = khtml_puts(gw_trans->gw_html_req, n_header->author);
1123 		if (kerr != KCGI_OK)
1124 			goto done;
1125 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1126 		if (kerr != KCGI_OK)
1127 			goto done;
1128 
1129 		if (asprintf(&href_diff, "?path=%s&action=diff&commit=%s",
1130 		    gw_trans->repo_name, n_header->commit_id) == -1) {
1131 			error = got_error_from_errno("asprintf");
1132 			goto done;
1133 		}
1134 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1135 		    KATTR_ID, "briefs_log", KATTR__MAX);
1136 		if (kerr != KCGI_OK)
1137 			goto done;
1138 		newline = strchr(n_header->commit_msg, '\n');
1139 		if (newline)
1140 			*newline = '\0';
1141 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1142 		    KATTR_HREF, href_diff, KATTR__MAX);
1143 		if (kerr != KCGI_OK)
1144 			goto done;
1145 		kerr = khtml_puts(gw_trans->gw_html_req, n_header->commit_msg);
1146 		if (kerr != KCGI_OK)
1147 			goto done;
1148 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1149 		if (kerr != KCGI_OK)
1150 			goto done;
1151 
1152 		if (n_header->refs_str) {
1153 			kerr = khtml_puts(gw_trans->gw_html_req, " ");
1154 			if (kerr != KCGI_OK)
1155 				goto done;
1156 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_SPAN,
1157 			    KATTR_ID, "refs_str", KATTR__MAX);
1158 			if (kerr != KCGI_OK)
1159 			goto done;
1160 			kerr = khtml_puts(gw_trans->gw_html_req, "(");
1161 			if (kerr != KCGI_OK)
1162 				goto done;
1163 			kerr = khtml_puts(gw_trans->gw_html_req,
1164 			    n_header->refs_str);
1165 			if (kerr != KCGI_OK)
1166 				goto done;
1167 			kerr = khtml_puts(gw_trans->gw_html_req, ")");
1168 			if (kerr != KCGI_OK)
1169 				goto done;
1170 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1171 			if (kerr != KCGI_OK)
1172 				goto done;
1173 		}
1174 
1175 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1176 		if (kerr != KCGI_OK)
1177 			goto done;
1178 
1179 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1180 		    KATTR_ID, "navs_wrapper", KATTR__MAX);
1181 		if (kerr != KCGI_OK)
1182 			goto done;
1183 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1184 		    KATTR_ID, "navs", KATTR__MAX);
1185 		if (kerr != KCGI_OK)
1186 			goto done;
1187 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1188 		    KATTR_HREF, href_diff, KATTR__MAX);
1189 		if (kerr != KCGI_OK)
1190 			goto done;
1191 		kerr = khtml_puts(gw_trans->gw_html_req, "diff");
1192 		if (kerr != KCGI_OK)
1193 			goto done;
1194 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1195 		if (kerr != KCGI_OK)
1196 			goto done;
1197 
1198 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
1199 		if (kerr != KCGI_OK)
1200 			goto done;
1201 
1202 		if (asprintf(&href_blob, "?path=%s&action=tree&commit=%s",
1203 		    gw_trans->repo_name, n_header->commit_id) == -1) {
1204 			error = got_error_from_errno("asprintf");
1205 			goto done;
1206 		}
1207 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1208 		    KATTR_HREF, href_blob, KATTR__MAX);
1209 		if (kerr != KCGI_OK)
1210 			goto done;
1211 		khtml_puts(gw_trans->gw_html_req, "tree");
1212 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1213 		if (kerr != KCGI_OK)
1214 			goto done;
1215 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1216 		if (kerr != KCGI_OK)
1217 			goto done;
1218 
1219 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1220 		    KATTR_ID, "dotted_line", KATTR__MAX);
1221 		if (kerr != KCGI_OK)
1222 			goto done;
1223 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
1224 		if (kerr != KCGI_OK)
1225 			goto done;
1226 
1227 		free(age);
1228 		age = NULL;
1229 		free(href_diff);
1230 		href_diff = NULL;
1231 		free(href_blob);
1232 		href_blob = NULL;
1233 	}
1234 done:
1235 	gw_free_header(header);
1236 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
1237 		gw_free_header(n_header);
1238 	free(age);
1239 	free(href_diff);
1240 	free(href_blob);
1241 	if (error == NULL && kerr != KCGI_OK)
1242 		error = gw_kcgi_error(kerr);
1243 	return error;
1244 }
1245 
1246 static const struct got_error *
1247 gw_summary(struct gw_trans *gw_trans)
1248 {
1249 	const struct got_error *error = NULL;
1250 	char *age = NULL;
1251 	enum kcgi_err kerr = KCGI_OK;
1252 
1253 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
1254 		return got_error_from_errno("pledge");
1255 
1256 	error = gw_apply_unveil(gw_trans->gw_dir->path);
1257 	if (error)
1258 		goto done;
1259 
1260 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1261 	    "summary_wrapper", KATTR__MAX);
1262 	if (kerr != KCGI_OK)
1263 		return gw_kcgi_error(kerr);
1264 
1265 	if (gw_trans->gw_conf->got_show_repo_description &&
1266 	    gw_trans->gw_dir->description != NULL &&
1267 	    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
1268 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1269 		    KATTR_ID, "description_title", KATTR__MAX);
1270 		if (kerr != KCGI_OK)
1271 			goto done;
1272 		kerr = khtml_puts(gw_trans->gw_html_req, "Description: ");
1273 		if (kerr != KCGI_OK)
1274 			goto done;
1275 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1276 		if (kerr != KCGI_OK)
1277 			goto done;
1278 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1279 		    KATTR_ID, "description", KATTR__MAX);
1280 		if (kerr != KCGI_OK)
1281 			goto done;
1282 		kerr = khtml_puts(gw_trans->gw_html_req,
1283 		    gw_trans->gw_dir->description);
1284 		if (kerr != KCGI_OK)
1285 			goto done;
1286 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1287 		if (kerr != KCGI_OK)
1288 			goto done;
1289 	}
1290 
1291 	if (gw_trans->gw_conf->got_show_repo_owner &&
1292 	    gw_trans->gw_dir->owner != NULL &&
1293 	    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
1294 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1295 		    KATTR_ID, "repo_owner_title", KATTR__MAX);
1296 		if (kerr != KCGI_OK)
1297 			goto done;
1298 		kerr = khtml_puts(gw_trans->gw_html_req, "Owner: ");
1299 		if (kerr != KCGI_OK)
1300 			goto done;
1301 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1302 		if (kerr != KCGI_OK)
1303 			goto done;
1304 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1305 		    KATTR_ID, "repo_owner", KATTR__MAX);
1306 		if (kerr != KCGI_OK)
1307 			goto done;
1308 		kerr = khtml_puts(gw_trans->gw_html_req,
1309 		     gw_trans->gw_dir->owner);
1310 		if (kerr != KCGI_OK)
1311 			goto done;
1312 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1313 		if (kerr != KCGI_OK)
1314 			goto done;
1315 	}
1316 
1317 	if (gw_trans->gw_conf->got_show_repo_age) {
1318 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path,
1319 		    NULL, TM_LONG);
1320 		if (error)
1321 			goto done;
1322 		if (age != NULL) {
1323 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1324 			    KATTR_ID, "last_change_title", KATTR__MAX);
1325 			if (kerr != KCGI_OK)
1326 				goto done;
1327 			kerr = khtml_puts(gw_trans->gw_html_req,
1328 			    "Last Change: ");
1329 			if (kerr != KCGI_OK)
1330 				goto done;
1331 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1332 			if (kerr != KCGI_OK)
1333 				goto done;
1334 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1335 			    KATTR_ID, "last_change", KATTR__MAX);
1336 			if (kerr != KCGI_OK)
1337 				goto done;
1338 			kerr = khtml_puts(gw_trans->gw_html_req, age);
1339 			if (kerr != KCGI_OK)
1340 				goto done;
1341 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1342 			if (kerr != KCGI_OK)
1343 				goto done;
1344 		}
1345 	}
1346 
1347 	if (gw_trans->gw_conf->got_show_repo_cloneurl &&
1348 	    gw_trans->gw_dir->url != NULL &&
1349 	    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
1350 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1351 		    KATTR_ID, "cloneurl_title", KATTR__MAX);
1352 		if (kerr != KCGI_OK)
1353 			goto done;
1354 		kerr = khtml_puts(gw_trans->gw_html_req, "Clone URL: ");
1355 		if (kerr != KCGI_OK)
1356 			goto done;
1357 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1358 		if (kerr != KCGI_OK)
1359 			goto done;
1360 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1361 		    KATTR_ID, "cloneurl", KATTR__MAX);
1362 		if (kerr != KCGI_OK)
1363 			goto done;
1364 		kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->gw_dir->url);
1365 		if (kerr != KCGI_OK)
1366 			goto done;
1367 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1368 		if (kerr != KCGI_OK)
1369 			goto done;
1370 	}
1371 
1372 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1373 	if (kerr != KCGI_OK)
1374 		goto done;
1375 
1376 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1377 	    "briefs_title_wrapper", KATTR__MAX);
1378 	if (kerr != KCGI_OK)
1379 		goto done;
1380 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1381 	    "briefs_title", KATTR__MAX);
1382 	if (kerr != KCGI_OK)
1383 		goto done;
1384 	kerr = khtml_puts(gw_trans->gw_html_req, "Commit Briefs");
1385 	if (kerr != KCGI_OK)
1386 		goto done;
1387 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1388 	if (kerr != KCGI_OK)
1389 		goto done;
1390 	error = gw_briefs(gw_trans);
1391 	if (error)
1392 		goto done;
1393 
1394 	error = gw_output_repo_tags(gw_trans, NULL, D_MAXSLCOMMDISP,
1395 	    TAGBRIEF);
1396 	if (error)
1397 		goto done;
1398 
1399 	error = gw_output_repo_heads(gw_trans);
1400 done:
1401 	free(age);
1402 	if (error == NULL && kerr != KCGI_OK)
1403 		error = gw_kcgi_error(kerr);
1404 	return error;
1405 }
1406 
1407 static const struct got_error *
1408 gw_tree(struct gw_trans *gw_trans)
1409 {
1410 	const struct got_error *error = NULL;
1411 	struct gw_header *header = NULL;
1412 	char *tree = NULL, *tree_html = NULL, *tree_html_disp = NULL;
1413 	char *age = NULL;
1414 	enum kcgi_err kerr;
1415 
1416 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
1417 		return got_error_from_errno("pledge");
1418 
1419 	if ((header = gw_init_header()) == NULL)
1420 		return got_error_from_errno("malloc");
1421 
1422 	error = gw_apply_unveil(gw_trans->gw_dir->path);
1423 	if (error)
1424 		goto done;
1425 
1426 	error = gw_get_header(gw_trans, header, 1);
1427 	if (error)
1428 		goto done;
1429 
1430 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1431 	    "tree_header_wrapper", KATTR__MAX);
1432 	if (kerr != KCGI_OK)
1433 		goto done;
1434 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1435 	    "tree_header", KATTR__MAX);
1436 	if (kerr != KCGI_OK)
1437 		goto done;
1438 	error = gw_gen_tree_header(gw_trans, header->tree_id);
1439 	if (error)
1440 		goto done;
1441 	error = gw_get_time_str(&age, header->committer_time,
1442 	    TM_LONG);
1443 	if (error)
1444 		goto done;
1445 	error = gw_gen_age_header(gw_trans, age ?age : "");
1446 	if (error)
1447 		goto done;
1448 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
1449 	if (error)
1450 		goto done;
1451 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1452 	if (kerr != KCGI_OK)
1453 		goto done;
1454 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1455 	    "dotted_line", KATTR__MAX);
1456 	if (kerr != KCGI_OK)
1457 		goto done;
1458 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1459 	if (kerr != KCGI_OK)
1460 		goto done;
1461 
1462 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1463 	    "tree", KATTR__MAX);
1464 	if (kerr != KCGI_OK)
1465 		goto done;
1466 	error = gw_output_repo_tree(gw_trans);
1467 	if (error)
1468 		goto done;
1469 
1470 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1471 done:
1472 	gw_free_header(header);
1473 	free(tree_html_disp);
1474 	free(tree_html);
1475 	free(tree);
1476 	free(age);
1477 	if (error == NULL && kerr != KCGI_OK)
1478 		error = gw_kcgi_error(kerr);
1479 	return error;
1480 }
1481 
1482 static const struct got_error *
1483 gw_tag(struct gw_trans *gw_trans)
1484 {
1485 	const struct got_error *error = NULL;
1486 	struct gw_header *header = NULL;
1487 	enum kcgi_err kerr;
1488 
1489 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
1490 		return got_error_from_errno("pledge");
1491 
1492 	if ((header = gw_init_header()) == NULL)
1493 		return got_error_from_errno("malloc");
1494 
1495 	error = gw_apply_unveil(gw_trans->gw_dir->path);
1496 	if (error)
1497 		goto done;
1498 
1499 	if (gw_trans->commit_id == NULL) {
1500 		error = got_error_msg(GOT_ERR_QUERYSTRING,
1501 		    "commit required in querystring");
1502 		goto done;
1503 	}
1504 
1505 	error = gw_get_header(gw_trans, header, 1);
1506 	if (error)
1507 		goto done;
1508 
1509 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1510 	    "tag_header_wrapper", KATTR__MAX);
1511 	if (kerr != KCGI_OK)
1512 		goto done;
1513 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1514 	    "tag_header", KATTR__MAX);
1515 	if (kerr != KCGI_OK)
1516 		goto done;
1517 	error = gw_gen_commit_header(gw_trans, header->commit_id,
1518 	    header->refs_str);
1519 	if (error)
1520 		goto done;
1521 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
1522 	if (error)
1523 		goto done;
1524 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1525 	if (kerr != KCGI_OK)
1526 		goto done;
1527 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1528 	    "dotted_line", KATTR__MAX);
1529 	if (kerr != KCGI_OK)
1530 		goto done;
1531 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1532 	if (kerr != KCGI_OK)
1533 		goto done;
1534 
1535 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1536 	    "tree", KATTR__MAX);
1537 	if (kerr != KCGI_OK)
1538 		goto done;
1539 
1540 	error = gw_output_repo_tags(gw_trans, header, 1, TAGFULL);
1541 	if (error)
1542 		goto done;
1543 
1544 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1545 done:
1546 	gw_free_header(header);
1547 	if (error == NULL && kerr != KCGI_OK)
1548 		error = gw_kcgi_error(kerr);
1549 	return error;
1550 }
1551 
1552 static const struct got_error *
1553 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
1554 {
1555 	const struct got_error *error = NULL;
1556 	DIR *dt;
1557 	char *dir_test;
1558 	int opened = 0;
1559 
1560 	if (asprintf(&dir_test, "%s/%s/%s",
1561 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
1562 	    GOTWEB_GIT_DIR) == -1)
1563 		return got_error_from_errno("asprintf");
1564 
1565 	dt = opendir(dir_test);
1566 	if (dt == NULL) {
1567 		free(dir_test);
1568 	} else {
1569 		gw_dir->path = strdup(dir_test);
1570 		if (gw_dir->path == NULL) {
1571 			opened = 1;
1572 			error = got_error_from_errno("strdup");
1573 			goto errored;
1574 		}
1575 		opened = 1;
1576 		goto done;
1577 	}
1578 
1579 	if (asprintf(&dir_test, "%s/%s/%s",
1580 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
1581 	    GOTWEB_GOT_DIR) == -1) {
1582 		dir_test = NULL;
1583 		error = got_error_from_errno("asprintf");
1584 		goto errored;
1585 	}
1586 
1587 	dt = opendir(dir_test);
1588 	if (dt == NULL)
1589 		free(dir_test);
1590 	else {
1591 		opened = 1;
1592 		error = got_error(GOT_ERR_NOT_GIT_REPO);
1593 		goto errored;
1594 	}
1595 
1596 	if (asprintf(&dir_test, "%s/%s",
1597 	    gw_trans->gw_conf->got_repos_path, gw_dir->name) == -1) {
1598 		error = got_error_from_errno("asprintf");
1599 		dir_test = NULL;
1600 		goto errored;
1601 	}
1602 
1603 	gw_dir->path = strdup(dir_test);
1604 	if (gw_dir->path == NULL) {
1605 		opened = 1;
1606 		error = got_error_from_errno("strdup");
1607 		goto errored;
1608 	}
1609 
1610 	dt = opendir(dir_test);
1611 	if (dt == NULL) {
1612 		error = got_error_path(gw_dir->name, GOT_ERR_NOT_GIT_REPO);
1613 		goto errored;
1614 	} else
1615 		opened = 1;
1616 done:
1617 	error = gw_get_repo_description(&gw_dir->description, gw_trans,
1618 	    gw_dir->path);
1619 	if (error)
1620 		goto errored;
1621 	error = gw_get_repo_owner(&gw_dir->owner, gw_trans, gw_dir->path);
1622 	if (error)
1623 		goto errored;
1624 	error = gw_get_repo_age(&gw_dir->age, gw_trans, gw_dir->path,
1625 	    NULL, TM_DIFF);
1626 	if (error)
1627 		goto errored;
1628 	error = gw_get_clone_url(&gw_dir->url, gw_trans, gw_dir->path);
1629 errored:
1630 	free(dir_test);
1631 	if (opened)
1632 		if (dt && closedir(dt) == -1 && error == NULL)
1633 			error = got_error_from_errno("closedir");
1634 	return error;
1635 }
1636 
1637 static const struct got_error *
1638 gw_load_got_paths(struct gw_trans *gw_trans)
1639 {
1640 	const struct got_error *error = NULL;
1641 	DIR *d;
1642 	struct dirent **sd_dent;
1643 	struct gw_dir *gw_dir;
1644 	struct stat st;
1645 	unsigned int d_cnt, d_i;
1646 
1647 	d = opendir(gw_trans->gw_conf->got_repos_path);
1648 	if (d == NULL) {
1649 		error = got_error_from_errno2("opendir",
1650 		    gw_trans->gw_conf->got_repos_path);
1651 		return error;
1652 	}
1653 
1654 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
1655 	    alphasort);
1656 	if (d_cnt == -1) {
1657 		error = got_error_from_errno2("scandir",
1658 		    gw_trans->gw_conf->got_repos_path);
1659 		goto done;
1660 	}
1661 
1662 	for (d_i = 0; d_i < d_cnt; d_i++) {
1663 		if (gw_trans->gw_conf->got_max_repos > 0 &&
1664 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
1665 			break; /* account for parent and self */
1666 
1667 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
1668 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
1669 			continue;
1670 
1671 		error = gw_init_gw_dir(&gw_dir, sd_dent[d_i]->d_name);
1672 		if (error)
1673 			goto done;
1674 
1675 		error = gw_load_got_path(gw_trans, gw_dir);
1676 		if (error && error->code == GOT_ERR_NOT_GIT_REPO) {
1677 			error = NULL;
1678 			continue;
1679 		}
1680 		else if (error)
1681 			goto done;
1682 
1683 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
1684 		    !got_path_dir_is_empty(gw_dir->path)) {
1685 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
1686 			    entry);
1687 			gw_trans->repos_total++;
1688 		}
1689 	}
1690 done:
1691 	if (d && closedir(d) == -1 && error == NULL)
1692 		error = got_error_from_errno("closedir");
1693 	return error;
1694 }
1695 
1696 static const struct got_error *
1697 gw_parse_querystring(struct gw_trans *gw_trans)
1698 {
1699 	const struct got_error *error = NULL;
1700 	struct kpair *p;
1701 	struct gw_query_action *action = NULL;
1702 	unsigned int i;
1703 
1704 	if (gw_trans->gw_req->fieldnmap[0]) {
1705 		return got_error(GOT_ERR_QUERYSTRING);
1706 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
1707 		/* define gw_trans->repo_path */
1708 		gw_trans->repo_name = p->parsed.s;
1709 
1710 		if (asprintf(&gw_trans->repo_path, "%s/%s",
1711 		    gw_trans->gw_conf->got_repos_path, p->parsed.s) == -1)
1712 			return got_error_from_errno("asprintf");
1713 
1714 		/* get action and set function */
1715 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION])) {
1716 			for (i = 0; i < nitems(gw_query_funcs); i++) {
1717 				action = &gw_query_funcs[i];
1718 				if (action->func_name == NULL)
1719 					continue;
1720 				if (strcmp(action->func_name,
1721 				    p->parsed.s) == 0) {
1722 					gw_trans->action = i;
1723 					break;
1724 				}
1725 			}
1726 		}
1727 		if (gw_trans->action == -1) {
1728 			gw_trans->action = GW_ERR;
1729 			gw_trans->error = got_error_msg(GOT_ERR_QUERYSTRING,
1730 			    p != NULL ? "bad action in querystring" :
1731 			    "no action in querystring");
1732 			return error;
1733 		}
1734 
1735  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID])) {
1736 			if (asprintf(&gw_trans->commit_id, "%s",
1737 			    p->parsed.s) == -1)
1738 				return got_error_from_errno("asprintf");
1739 		}
1740 
1741 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
1742 			gw_trans->repo_file = p->parsed.s;
1743 
1744 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER])) {
1745 			if (asprintf(&gw_trans->repo_folder, "%s",
1746 			    p->parsed.s) == -1)
1747 				return got_error_from_errno("asprintf");
1748 		}
1749 
1750 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
1751 			gw_trans->headref = p->parsed.s;
1752 
1753 		error = gw_init_gw_dir(&gw_trans->gw_dir, gw_trans->repo_name);
1754 		if (error)
1755 			return error;
1756 
1757 		gw_trans->error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
1758 	} else
1759 		gw_trans->action = GW_INDEX;
1760 
1761 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
1762 		gw_trans->page = p->parsed.i;
1763 
1764 	return error;
1765 }
1766 
1767 static const struct got_error *
1768 gw_init_gw_dir(struct gw_dir **gw_dir, const char *dir)
1769 {
1770 	const struct got_error *error;
1771 
1772 	*gw_dir = malloc(sizeof(**gw_dir));
1773 	if (*gw_dir == NULL)
1774 		return got_error_from_errno("malloc");
1775 
1776 	if (asprintf(&(*gw_dir)->name, "%s", dir) == -1) {
1777 		error = got_error_from_errno("asprintf");
1778 		free(*gw_dir);
1779 		*gw_dir = NULL;
1780 		return NULL;
1781 	}
1782 
1783 	return NULL;
1784 }
1785 
1786 static const struct got_error *
1787 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
1788 {
1789 	enum kcgi_err kerr;
1790 
1791 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1792 	if (kerr != KCGI_OK)
1793 		return gw_kcgi_error(kerr);
1794 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1795 	    khttps[code]);
1796 	if (kerr != KCGI_OK)
1797 		return gw_kcgi_error(kerr);
1798 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1799 	    kmimetypes[mime]);
1800 	if (kerr != KCGI_OK)
1801 		return gw_kcgi_error(kerr);
1802 	kerr = khttp_head(gw_trans->gw_req, "X-Content-Type-Options",
1803 	    "nosniff");
1804 	if (kerr != KCGI_OK)
1805 		return gw_kcgi_error(kerr);
1806 	kerr = khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1807 	if (kerr != KCGI_OK)
1808 		return gw_kcgi_error(kerr);
1809 	kerr = khttp_head(gw_trans->gw_req, "X-XSS-Protection",
1810 	    "1; mode=block");
1811 	if (kerr != KCGI_OK)
1812 		return gw_kcgi_error(kerr);
1813 
1814 	if (gw_trans->mime == KMIME_APP_OCTET_STREAM) {
1815 		kerr = khttp_head(gw_trans->gw_req,
1816 		    kresps[KRESP_CONTENT_DISPOSITION],
1817 		    "attachment; filename=%s", gw_trans->repo_file);
1818 		if (kerr != KCGI_OK)
1819 			return gw_kcgi_error(kerr);
1820 	}
1821 
1822 	kerr = khttp_body(gw_trans->gw_req);
1823 	return gw_kcgi_error(kerr);
1824 }
1825 
1826 static const struct got_error *
1827 gw_display_index(struct gw_trans *gw_trans)
1828 {
1829 	const struct got_error *error;
1830 	enum kcgi_err kerr;
1831 
1832 	/* catch early querystring errors */
1833 	if (gw_trans->error)
1834 		gw_trans->action = GW_ERR;
1835 
1836 	error = gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1837 	if (error)
1838 		return error;
1839 
1840 	kerr = khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1841 	if (kerr != KCGI_OK)
1842 		return gw_kcgi_error(kerr);
1843 
1844 	if (gw_trans->action != GW_BLOB) {
1845 		kerr = khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1846 		    gw_query_funcs[gw_trans->action].template);
1847 		if (kerr != KCGI_OK) {
1848 			khtml_close(gw_trans->gw_html_req);
1849 			return gw_kcgi_error(kerr);
1850 		}
1851 	}
1852 
1853 	return gw_kcgi_error(khtml_close(gw_trans->gw_html_req));
1854 }
1855 
1856 static const struct got_error *
1857 gw_error(struct gw_trans *gw_trans)
1858 {
1859 	enum kcgi_err kerr;
1860 
1861 	kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->error->msg);
1862 
1863 	return gw_kcgi_error(kerr);
1864 }
1865 
1866 static int
1867 gw_template(size_t key, void *arg)
1868 {
1869 	const struct got_error *error = NULL;
1870 	enum kcgi_err kerr;
1871 	struct gw_trans *gw_trans = arg;
1872 	char *img_src = NULL;
1873 
1874 	switch (key) {
1875 	case (TEMPL_HEAD):
1876 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1877 		    KATTR_NAME, "viewport",
1878 		    KATTR_CONTENT, "initial-scale=.75, user-scalable=yes",
1879 		    KATTR__MAX);
1880 		if (kerr != KCGI_OK)
1881 			return 0;
1882 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1883 		if (kerr != KCGI_OK)
1884 			return 0;
1885 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1886 		    KATTR_CHARSET, "utf-8",
1887 		    KATTR__MAX);
1888 		if (kerr != KCGI_OK)
1889 			return 0;
1890 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1891 		if (kerr != KCGI_OK)
1892 			return 0;
1893 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1894 		    KATTR_NAME, "msapplication-TileColor",
1895 		    KATTR_CONTENT, "#da532c", KATTR__MAX);
1896 		if (kerr != KCGI_OK)
1897 			return 0;
1898 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1899 		if (kerr != KCGI_OK)
1900 			return 0;
1901 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1902 		    KATTR_NAME, "theme-color",
1903 		    KATTR_CONTENT, "#ffffff", KATTR__MAX);
1904 		if (kerr != KCGI_OK)
1905 			return 0;
1906 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1907 		if (kerr != KCGI_OK)
1908 			return 0;
1909 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1910 		    KATTR_REL, "apple-touch-icon", KATTR_SIZES, "180x180",
1911 		    KATTR_HREF, "/apple-touch-icon.png", KATTR__MAX);
1912 		if (kerr != KCGI_OK)
1913 			return 0;
1914 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1915 		if (kerr != KCGI_OK)
1916 			return 0;
1917 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1918 		    KATTR_REL, "icon", KATTR_TYPE, "image/png", KATTR_SIZES,
1919 		    "32x32", KATTR_HREF, "/favicon-32x32.png", KATTR__MAX);
1920 		if (kerr != KCGI_OK)
1921 			return 0;
1922 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1923 		if (kerr != KCGI_OK)
1924 			return 0;
1925 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1926 		    KATTR_REL, "icon", KATTR_TYPE, "image/png", KATTR_SIZES,
1927 		    "16x16", KATTR_HREF, "/favicon-16x16.png", KATTR__MAX);
1928 		if (kerr != KCGI_OK)
1929 			return 0;
1930 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1931 		if (kerr != KCGI_OK)
1932 			return 0;
1933 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1934 		    KATTR_REL, "manifest", KATTR_HREF, "/site.webmanifest",
1935 		    KATTR__MAX);
1936 		if (kerr != KCGI_OK)
1937 			return 0;
1938 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1939 		if (kerr != KCGI_OK)
1940 			return 0;
1941 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1942 		    KATTR_REL, "mask-icon", KATTR_HREF,
1943 		    "/safari-pinned-tab.svg", KATTR__MAX);
1944 		if (kerr != KCGI_OK)
1945 			return 0;
1946 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1947 		if (kerr != KCGI_OK)
1948 			return 0;
1949 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1950 		    KATTR_REL, "stylesheet", KATTR_TYPE, "text/css",
1951 		    KATTR_HREF, "/gotweb.css", KATTR__MAX);
1952 		if (kerr != KCGI_OK)
1953 			return 0;
1954 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1955 		if (kerr != KCGI_OK)
1956 			return 0;
1957 		break;
1958 	case(TEMPL_HEADER):
1959 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1960 		    KATTR_ID, "got_link", KATTR__MAX);
1961 		if (kerr != KCGI_OK)
1962 			return 0;
1963 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1964 		    KATTR_HREF,  gw_trans->gw_conf->got_logo_url,
1965 		    KATTR_TARGET, "_sotd", KATTR__MAX);
1966 		if (kerr != KCGI_OK)
1967 			return 0;
1968 		if (asprintf(&img_src, "/%s",
1969 		    gw_trans->gw_conf->got_logo) == -1)
1970 			return 0;
1971 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_IMG,
1972 		    KATTR_SRC, img_src, KATTR__MAX);
1973 		if (kerr != KCGI_OK) {
1974 			free(img_src);
1975 			return 0;
1976 		}
1977 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
1978 		if (kerr != KCGI_OK) {
1979 			free(img_src);
1980 			return 0;
1981 		}
1982 		break;
1983 	case (TEMPL_SITEPATH):
1984 		error = gw_output_site_link(gw_trans);
1985 		if (error)
1986 			return 0;
1987 		break;
1988 	case(TEMPL_TITLE):
1989 		if (gw_trans->gw_conf->got_site_name != NULL) {
1990 			kerr = khtml_puts(gw_trans->gw_html_req,
1991 			    gw_trans->gw_conf->got_site_name);
1992 			if (kerr != KCGI_OK)
1993 				return 0;
1994 		}
1995 		break;
1996 	case (TEMPL_SEARCH):
1997 		break;
1998 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1999 		    "search", KATTR__MAX);
2000 		if (kerr != KCGI_OK)
2001 			return 0;
2002 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_FORM,
2003 			    KATTR_METHOD, "POST", KATTR__MAX);
2004 		if (kerr != KCGI_OK)
2005 			return 0;
2006 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_INPUT, KATTR_ID,
2007 		    "got-search", KATTR_NAME, "got-search", KATTR_SIZE, "15",
2008 		    KATTR_MAXLENGTH, "50", KATTR__MAX);
2009 		if (kerr != KCGI_OK)
2010 			return 0;
2011 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_BUTTON,
2012 		    KATTR__MAX);
2013 		if (kerr != KCGI_OK)
2014 			return 0;
2015 		kerr = khtml_puts(gw_trans->gw_html_req, "Search");
2016 		if (kerr != KCGI_OK)
2017 			return 0;
2018 		kerr = khtml_closeelem(gw_trans->gw_html_req, 4);
2019 		if (kerr != KCGI_OK)
2020 			return 0;
2021 		break;
2022 	case(TEMPL_SITEOWNER):
2023 		if (gw_trans->gw_conf->got_site_owner != NULL &&
2024 		    gw_trans->gw_conf->got_show_site_owner) {
2025 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2026 			    KATTR_ID, "site_owner_wrapper", KATTR__MAX);
2027 			if (kerr != KCGI_OK)
2028 				return 0;
2029 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2030 			    KATTR_ID, "site_owner", KATTR__MAX);
2031 			if (kerr != KCGI_OK)
2032 				return 0;
2033 			kerr = khtml_puts(gw_trans->gw_html_req,
2034 			    gw_trans->gw_conf->got_site_owner);
2035 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
2036 			if (kerr != KCGI_OK)
2037 				return 0;
2038 		}
2039 		break;
2040 	case(TEMPL_CONTENT):
2041 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
2042 		if (error) {
2043 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2044 			    KATTR_ID, "tmpl_err", KATTR__MAX);
2045 			if (kerr != KCGI_OK)
2046 				return 0;
2047 			kerr = khttp_puts(gw_trans->gw_req, "Error: ");
2048 			if (kerr != KCGI_OK)
2049 				return 0;
2050 			kerr = khttp_puts(gw_trans->gw_req, error->msg);
2051 			if (kerr != KCGI_OK)
2052 				return 0;
2053 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2054 			if (kerr != KCGI_OK)
2055 				return 0;
2056 		}
2057 		break;
2058 	default:
2059 		return 0;
2060 	}
2061 	return 1;
2062 }
2063 
2064 static const struct got_error *
2065 gw_gen_commit_header(struct gw_trans *gw_trans, char *str1, char *str2)
2066 {
2067 	const struct got_error *error = NULL;
2068 	enum kcgi_err kerr = KCGI_OK;
2069 
2070 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2071 	    KATTR_ID, "header_commit_title", KATTR__MAX);
2072 	if (kerr != KCGI_OK)
2073 		goto done;
2074 	kerr = khtml_puts(gw_trans->gw_html_req, "Commit: ");
2075 	if (kerr != KCGI_OK)
2076 		goto done;
2077 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2078 	if (kerr != KCGI_OK)
2079 		goto done;
2080 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2081 	    KATTR_ID, "header_commit", KATTR__MAX);
2082 	if (kerr != KCGI_OK)
2083 		goto done;
2084 	kerr = khtml_puts(gw_trans->gw_html_req, str1);
2085 	if (kerr != KCGI_OK)
2086 		goto done;
2087 	kerr = khtml_puts(gw_trans->gw_html_req, " ");
2088 	if (kerr != KCGI_OK)
2089 		goto done;
2090 	if (str2 != NULL) {
2091 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_SPAN,
2092 		    KATTR_ID, "refs_str", KATTR__MAX);
2093 		if (kerr != KCGI_OK)
2094 			goto done;
2095 		kerr = khtml_puts(gw_trans->gw_html_req, "(");
2096 		if (kerr != KCGI_OK)
2097 			goto done;
2098 		kerr = khtml_puts(gw_trans->gw_html_req, str2);
2099 		if (kerr != KCGI_OK)
2100 			goto done;
2101 		kerr = khtml_puts(gw_trans->gw_html_req, ")");
2102 		if (kerr != KCGI_OK)
2103 			goto done;
2104 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2105 		if (kerr != KCGI_OK)
2106 			goto done;
2107 	}
2108 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2109 done:
2110 	if (error == NULL && kerr != KCGI_OK)
2111 		error = gw_kcgi_error(kerr);
2112 	return error;
2113 }
2114 
2115 static const struct got_error *
2116 gw_gen_diff_header(struct gw_trans *gw_trans, char *str1, char *str2)
2117 {
2118 	const struct got_error *error = NULL;
2119 	enum kcgi_err kerr = KCGI_OK;
2120 
2121 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2122 	    KATTR_ID, "header_diff_title", KATTR__MAX);
2123 	if (kerr != KCGI_OK)
2124 		goto done;
2125 	kerr = khtml_puts(gw_trans->gw_html_req, "Diff: ");
2126 	if (kerr != KCGI_OK)
2127 		goto done;
2128 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2129 	if (kerr != KCGI_OK)
2130 		goto done;
2131 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2132 	    KATTR_ID, "header_diff", KATTR__MAX);
2133 	if (kerr != KCGI_OK)
2134 		goto done;
2135 	if (str1 != NULL) {
2136 		kerr = khtml_puts(gw_trans->gw_html_req, str1);
2137 		if (kerr != KCGI_OK)
2138 			goto done;
2139 	}
2140 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_BR, KATTR__MAX);
2141 	if (kerr != KCGI_OK)
2142 		goto done;
2143 	kerr = khtml_puts(gw_trans->gw_html_req, str2);
2144 	if (kerr != KCGI_OK)
2145 		goto done;
2146 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2147 done:
2148 	if (error == NULL && kerr != KCGI_OK)
2149 		error = gw_kcgi_error(kerr);
2150 	return error;
2151 }
2152 
2153 static const struct got_error *
2154 gw_gen_age_header(struct gw_trans *gw_trans, const char *str)
2155 {
2156 	const struct got_error *error = NULL;
2157 	enum kcgi_err kerr = KCGI_OK;
2158 
2159 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2160 	    KATTR_ID, "header_age_title", KATTR__MAX);
2161 	if (kerr != KCGI_OK)
2162 		goto done;
2163 	kerr = khtml_puts(gw_trans->gw_html_req, "Date: ");
2164 	if (kerr != KCGI_OK)
2165 		goto done;
2166 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2167 	if (kerr != KCGI_OK)
2168 		goto done;
2169 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2170 	    KATTR_ID, "header_age", KATTR__MAX);
2171 	if (kerr != KCGI_OK)
2172 		goto done;
2173 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2174 	if (kerr != KCGI_OK)
2175 		goto done;
2176 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2177 done:
2178 	if (error == NULL && kerr != KCGI_OK)
2179 		error = gw_kcgi_error(kerr);
2180 	return error;
2181 }
2182 
2183 static const struct got_error *
2184 gw_gen_author_header(struct gw_trans *gw_trans, const char *str)
2185 {
2186 	const struct got_error *error = NULL;
2187 	enum kcgi_err kerr;
2188 
2189 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2190 	    KATTR_ID, "header_author_title", KATTR__MAX);
2191 	if (kerr != KCGI_OK)
2192 		goto done;
2193 	kerr = khtml_puts(gw_trans->gw_html_req, "Author: ");
2194 	if (kerr != KCGI_OK)
2195 		goto done;
2196 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2197 	if (kerr != KCGI_OK)
2198 		goto done;
2199 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2200 	    KATTR_ID, "header_author", KATTR__MAX);
2201 	if (kerr != KCGI_OK)
2202 		goto done;
2203 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2204 	if (kerr != KCGI_OK)
2205 		goto done;
2206 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2207 done:
2208 	if (error == NULL && kerr != KCGI_OK)
2209 		error = gw_kcgi_error(kerr);
2210 	return error;
2211 }
2212 
2213 static const struct got_error *
2214 gw_gen_committer_header(struct gw_trans *gw_trans, const char *str)
2215 {
2216 	const struct got_error *error = NULL;
2217 	enum kcgi_err kerr;
2218 
2219 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2220 	    KATTR_ID, "header_committer_title", KATTR__MAX);
2221 	if (kerr != KCGI_OK)
2222 		goto done;
2223 	kerr = khtml_puts(gw_trans->gw_html_req, "Committer: ");
2224 	if (kerr != KCGI_OK)
2225 		goto done;
2226 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2227 	if (kerr != KCGI_OK)
2228 		goto done;
2229 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2230 	    KATTR_ID, "header_committer", KATTR__MAX);
2231 	if (kerr != KCGI_OK)
2232 		goto done;
2233 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2234 	if (kerr != KCGI_OK)
2235 		goto done;
2236 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2237 done:
2238 	if (error == NULL && kerr != KCGI_OK)
2239 		error = gw_kcgi_error(kerr);
2240 	return error;
2241 }
2242 
2243 static const struct got_error *
2244 gw_gen_commit_msg_header(struct gw_trans *gw_trans, char *str)
2245 {
2246 	const struct got_error *error = NULL;
2247 	enum kcgi_err kerr;
2248 
2249 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2250 	    KATTR_ID, "header_commit_msg_title", KATTR__MAX);
2251 	if (kerr != KCGI_OK)
2252 		goto done;
2253 	kerr = khtml_puts(gw_trans->gw_html_req, "Message: ");
2254 	if (kerr != KCGI_OK)
2255 		goto done;
2256 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2257 	if (kerr != KCGI_OK)
2258 		goto done;
2259 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2260 	    KATTR_ID, "header_commit_msg", KATTR__MAX);
2261 	if (kerr != KCGI_OK)
2262 		goto done;
2263 	kerr = khttp_puts(gw_trans->gw_req, str);
2264 	if (kerr != KCGI_OK)
2265 		goto done;
2266 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2267 done:
2268 	if (error == NULL && kerr != KCGI_OK)
2269 		error = gw_kcgi_error(kerr);
2270 	return error;
2271 }
2272 
2273 static const struct got_error *
2274 gw_gen_tree_header(struct gw_trans *gw_trans, char *str)
2275 {
2276 	const struct got_error *error = NULL;
2277 	enum kcgi_err kerr;
2278 
2279 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2280 	    KATTR_ID, "header_tree_title", KATTR__MAX);
2281 	if (kerr != KCGI_OK)
2282 		goto done;
2283 	kerr = khtml_puts(gw_trans->gw_html_req, "Tree: ");
2284 	if (kerr != KCGI_OK)
2285 		goto done;
2286 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2287 	if (kerr != KCGI_OK)
2288 		goto done;
2289 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2290 	    KATTR_ID, "header_tree", KATTR__MAX);
2291 	if (kerr != KCGI_OK)
2292 		goto done;
2293 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2294 	if (kerr != KCGI_OK)
2295 		goto done;
2296 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2297 done:
2298 	if (error == NULL && kerr != KCGI_OK)
2299 		error = gw_kcgi_error(kerr);
2300 	return error;
2301 }
2302 
2303 static const struct got_error *
2304 gw_get_repo_description(char **description, struct gw_trans *gw_trans,
2305     char *dir)
2306 {
2307 	const struct got_error *error = NULL;
2308 	FILE *f = NULL;
2309 	char *d_file = NULL;
2310 	unsigned int len;
2311 	size_t n;
2312 
2313 	*description = NULL;
2314 	if (gw_trans->gw_conf->got_show_repo_description == 0)
2315 		return NULL;
2316 
2317 	if (asprintf(&d_file, "%s/description", dir) == -1)
2318 		return got_error_from_errno("asprintf");
2319 
2320 	f = fopen(d_file, "r");
2321 	if (f == NULL) {
2322 		if (errno == ENOENT || errno == EACCES)
2323 			return NULL;
2324 		error = got_error_from_errno2("fopen", d_file);
2325 		goto done;
2326 	}
2327 
2328 	if (fseek(f, 0, SEEK_END) == -1) {
2329 		error = got_ferror(f, GOT_ERR_IO);
2330 		goto done;
2331 	}
2332 	len = ftell(f);
2333 	if (len == -1) {
2334 		error = got_ferror(f, GOT_ERR_IO);
2335 		goto done;
2336 	}
2337 	if (fseek(f, 0, SEEK_SET) == -1) {
2338 		error = got_ferror(f, GOT_ERR_IO);
2339 		goto done;
2340 	}
2341 	*description = calloc(len + 1, sizeof(**description));
2342 	if (*description == NULL) {
2343 		error = got_error_from_errno("calloc");
2344 		goto done;
2345 	}
2346 
2347 	n = fread(*description, 1, len, f);
2348 	if (n == 0 && ferror(f))
2349 		error = got_ferror(f, GOT_ERR_IO);
2350 done:
2351 	if (f != NULL && fclose(f) == -1 && error == NULL)
2352 		error = got_error_from_errno("fclose");
2353 	free(d_file);
2354 	return error;
2355 }
2356 
2357 static const struct got_error *
2358 gw_get_time_str(char **repo_age, time_t committer_time, int ref_tm)
2359 {
2360 	struct tm tm;
2361 	time_t diff_time;
2362 	char *years = "years ago", *months = "months ago";
2363 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
2364 	char *minutes = "minutes ago", *seconds = "seconds ago";
2365 	char *now = "right now";
2366 	char *s;
2367 	char datebuf[29];
2368 
2369 	*repo_age = NULL;
2370 
2371 	switch (ref_tm) {
2372 	case TM_DIFF:
2373 		diff_time = time(NULL) - committer_time;
2374 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
2375 			if (asprintf(repo_age, "%lld %s",
2376 			    (diff_time / 60 / 60 / 24 / 365), years) == -1)
2377 				return got_error_from_errno("asprintf");
2378 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
2379 			if (asprintf(repo_age, "%lld %s",
2380 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
2381 			    months) == -1)
2382 				return got_error_from_errno("asprintf");
2383 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
2384 			if (asprintf(repo_age, "%lld %s",
2385 			    (diff_time / 60 / 60 / 24 / 7), weeks) == -1)
2386 				return got_error_from_errno("asprintf");
2387 		} else if (diff_time > 60 * 60 * 24 * 2) {
2388 			if (asprintf(repo_age, "%lld %s",
2389 			    (diff_time / 60 / 60 / 24), days) == -1)
2390 				return got_error_from_errno("asprintf");
2391 		} else if (diff_time > 60 * 60 * 2) {
2392 			if (asprintf(repo_age, "%lld %s",
2393 			    (diff_time / 60 / 60), hours) == -1)
2394 				return got_error_from_errno("asprintf");
2395 		} else if (diff_time > 60 * 2) {
2396 			if (asprintf(repo_age, "%lld %s", (diff_time / 60),
2397 			    minutes) == -1)
2398 				return got_error_from_errno("asprintf");
2399 		} else if (diff_time > 2) {
2400 			if (asprintf(repo_age, "%lld %s", diff_time,
2401 			    seconds) == -1)
2402 				return got_error_from_errno("asprintf");
2403 		} else {
2404 			if (asprintf(repo_age, "%s", now) == -1)
2405 				return got_error_from_errno("asprintf");
2406 		}
2407 		break;
2408 	case TM_LONG:
2409 		if (gmtime_r(&committer_time, &tm) == NULL)
2410 			return got_error_from_errno("gmtime_r");
2411 
2412 		s = asctime_r(&tm, datebuf);
2413 		if (s == NULL)
2414 			return got_error_from_errno("asctime_r");
2415 
2416 		if (asprintf(repo_age, "%s UTC", datebuf) == -1)
2417 			return got_error_from_errno("asprintf");
2418 		break;
2419 	}
2420 	return NULL;
2421 }
2422 
2423 static const struct got_error *
2424 gw_get_repo_age(char **repo_age, struct gw_trans *gw_trans, char *dir,
2425     const char *refname, int ref_tm)
2426 {
2427 	const struct got_error *error = NULL;
2428 	struct got_repository *repo = NULL;
2429 	struct got_commit_object *commit = NULL;
2430 	struct got_reflist_head refs;
2431 	struct got_reflist_entry *re;
2432 	time_t committer_time = 0, cmp_time = 0;
2433 
2434 	*repo_age = NULL;
2435 	SIMPLEQ_INIT(&refs);
2436 
2437 	if (gw_trans->gw_conf->got_show_repo_age == 0)
2438 		return NULL;
2439 
2440 	if (gw_trans->repo)
2441 		repo = gw_trans->repo;
2442 	else {
2443 		error = got_repo_open(&repo, dir, NULL);
2444 		if (error)
2445 			return error;
2446 	}
2447 
2448 	error = got_ref_list(&refs, repo, "refs/heads",
2449 	    got_ref_cmp_by_name, NULL);
2450 	if (error)
2451 		goto done;
2452 
2453 	/*
2454 	 * Find the youngest branch tip in the repository, or the age of
2455 	 * the a specific branch tip if a name was provided by the caller.
2456 	 */
2457 	SIMPLEQ_FOREACH(re, &refs, entry) {
2458 		struct got_object_id *id = NULL;
2459 
2460 		if (refname && strcmp(got_ref_get_name(re->ref), refname) != 0)
2461 			continue;
2462 
2463 		error = got_ref_resolve(&id, repo, re->ref);
2464 		if (error)
2465 			goto done;
2466 
2467 		error = got_object_open_as_commit(&commit, repo, id);
2468 		free(id);
2469 		if (error)
2470 			goto done;
2471 
2472 		committer_time =
2473 		    got_object_commit_get_committer_time(commit);
2474 		got_object_commit_close(commit);
2475 		if (cmp_time < committer_time)
2476 			cmp_time = committer_time;
2477 
2478 		if (refname)
2479 			break;
2480 	}
2481 
2482 	if (cmp_time != 0) {
2483 		committer_time = cmp_time;
2484 		error = gw_get_time_str(repo_age, committer_time, ref_tm);
2485 	}
2486 done:
2487 	got_ref_list_free(&refs);
2488 	if (gw_trans->repo == NULL)
2489 		got_repo_close(repo);
2490 	return error;
2491 }
2492 
2493 static const struct got_error *
2494 gw_output_diff(struct gw_trans *gw_trans, struct gw_header *header)
2495 {
2496 	const struct got_error *error;
2497 	FILE *f = NULL;
2498 	struct got_object_id *id1 = NULL, *id2 = NULL;
2499 	char *label1 = NULL, *label2 = NULL, *line = NULL;
2500 	int obj_type;
2501 	size_t linesize = 0;
2502 	ssize_t linelen;
2503 	enum kcgi_err kerr = KCGI_OK;
2504 
2505 	f = got_opentemp();
2506 	if (f == NULL)
2507 		return NULL;
2508 
2509 	if (header->parent_id != NULL &&
2510 	    strncmp(header->parent_id, "/dev/null", 9) != 0) {
2511 		error = got_repo_match_object_id(&id1, &label1,
2512 			header->parent_id, GOT_OBJ_TYPE_ANY, 1, gw_trans->repo);
2513 		if (error)
2514 			goto done;
2515 	}
2516 
2517 	error = got_repo_match_object_id(&id2, &label2,
2518 	    header->commit_id, GOT_OBJ_TYPE_ANY, 1, gw_trans->repo);
2519 	if (error)
2520 		goto done;
2521 
2522 	error = got_object_get_type(&obj_type, gw_trans->repo, id2);
2523 	if (error)
2524 		goto done;
2525 	switch (obj_type) {
2526 	case GOT_OBJ_TYPE_BLOB:
2527 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL, 3, 0,
2528 		    gw_trans->repo, f);
2529 		break;
2530 	case GOT_OBJ_TYPE_TREE:
2531 		error = got_diff_objects_as_trees(id1, id2, "", "", 3, 0,
2532 		    gw_trans->repo, f);
2533 		break;
2534 	case GOT_OBJ_TYPE_COMMIT:
2535 		error = got_diff_objects_as_commits(id1, id2, 3, 0,
2536 		    gw_trans->repo, f);
2537 		break;
2538 	default:
2539 		error = got_error(GOT_ERR_OBJ_TYPE);
2540 	}
2541 	if (error)
2542 		goto done;
2543 
2544 	if (fseek(f, 0, SEEK_SET) == -1) {
2545 		error = got_ferror(f, GOT_ERR_IO);
2546 		goto done;
2547 	}
2548 
2549 	while ((linelen = getline(&line, &linesize, f)) != -1) {
2550 		error = gw_colordiff_line(gw_trans, line);
2551 		if (error)
2552 			goto done;
2553 		/* XXX: KHTML_PRETTY breaks this */
2554 		kerr = khtml_puts(gw_trans->gw_html_req, line);
2555 		if (kerr != KCGI_OK)
2556 			goto done;
2557 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2558 		if (kerr != KCGI_OK)
2559 			goto done;
2560 	}
2561 	if (linelen == -1 && ferror(f))
2562 		error = got_error_from_errno("getline");
2563 done:
2564 	if (f && fclose(f) == -1 && error == NULL)
2565 		error = got_error_from_errno("fclose");
2566 	free(line);
2567 	free(label1);
2568 	free(label2);
2569 	free(id1);
2570 	free(id2);
2571 
2572 	if (error == NULL && kerr != KCGI_OK)
2573 		error = gw_kcgi_error(kerr);
2574 	return error;
2575 }
2576 
2577 static const struct got_error *
2578 gw_get_repo_owner(char **owner, struct gw_trans *gw_trans, char *dir)
2579 {
2580 	const struct got_error *error = NULL;
2581 	struct got_repository *repo;
2582 	const char *gitconfig_owner;
2583 
2584 	*owner = NULL;
2585 
2586 	if (gw_trans->gw_conf->got_show_repo_owner == 0)
2587 		return NULL;
2588 
2589 	error = got_repo_open(&repo, dir, NULL);
2590 	if (error)
2591 		return error;
2592 	gitconfig_owner = got_repo_get_gitconfig_owner(repo);
2593 	if (gitconfig_owner) {
2594 		*owner = strdup(gitconfig_owner);
2595 		if (*owner == NULL)
2596 			error = got_error_from_errno("strdup");
2597 	}
2598 	got_repo_close(repo);
2599 	return error;
2600 }
2601 
2602 static const struct got_error *
2603 gw_get_clone_url(char **url, struct gw_trans *gw_trans, char *dir)
2604 {
2605 	const struct got_error *error = NULL;
2606 	FILE *f;
2607 	char *d_file = NULL;
2608 	unsigned int len;
2609 	size_t n;
2610 
2611 	*url = NULL;
2612 
2613 	if (asprintf(&d_file, "%s/cloneurl", dir) == -1)
2614 		return got_error_from_errno("asprintf");
2615 
2616 	f = fopen(d_file, "r");
2617 	if (f == NULL) {
2618 		if (errno != ENOENT && errno != EACCES)
2619 			error = got_error_from_errno2("fopen", d_file);
2620 		goto done;
2621 	}
2622 
2623 	if (fseek(f, 0, SEEK_END) == -1) {
2624 		error = got_ferror(f, GOT_ERR_IO);
2625 		goto done;
2626 	}
2627 	len = ftell(f);
2628 	if (len == -1) {
2629 		error = got_ferror(f, GOT_ERR_IO);
2630 		goto done;
2631 	}
2632 	if (fseek(f, 0, SEEK_SET) == -1) {
2633 		error = got_ferror(f, GOT_ERR_IO);
2634 		goto done;
2635 	}
2636 
2637 	*url = calloc(len + 1, sizeof(**url));
2638 	if (*url == NULL) {
2639 		error = got_error_from_errno("calloc");
2640 		goto done;
2641 	}
2642 
2643 	n = fread(*url, 1, len, f);
2644 	if (n == 0 && ferror(f))
2645 		error = got_ferror(f, GOT_ERR_IO);
2646 done:
2647 	if (f && fclose(f) == -1 && error == NULL)
2648 		error = got_error_from_errno("fclose");
2649 	free(d_file);
2650 	return NULL;
2651 }
2652 
2653 static const struct got_error *
2654 gw_output_repo_tags(struct gw_trans *gw_trans, struct gw_header *header,
2655     int limit, int tag_type)
2656 {
2657 	const struct got_error *error = NULL;
2658 	struct got_reflist_head refs;
2659 	struct got_reflist_entry *re;
2660 	char *age = NULL;
2661 	char *id_str = NULL, *newline, *href_commits = NULL;
2662 	char *tag_commit0 = NULL, *href_tag = NULL, *href_briefs = NULL;
2663 	struct got_tag_object *tag = NULL;
2664 	enum kcgi_err kerr = KCGI_OK;
2665 	int summary_header_displayed = 0;
2666 
2667 	SIMPLEQ_INIT(&refs);
2668 
2669 	error = got_ref_list(&refs, gw_trans->repo, "refs/tags",
2670 	    got_ref_cmp_tags, gw_trans->repo);
2671 	if (error)
2672 		goto done;
2673 
2674 	SIMPLEQ_FOREACH(re, &refs, entry) {
2675 		const char *refname;
2676 		const char *tagger;
2677 		const char *tag_commit;
2678 		time_t tagger_time;
2679 		struct got_object_id *id;
2680 		struct got_commit_object *commit = NULL;
2681 
2682 		refname = got_ref_get_name(re->ref);
2683 		if (strncmp(refname, "refs/tags/", 10) != 0)
2684 			continue;
2685 		refname += 10;
2686 
2687 		error = got_ref_resolve(&id, gw_trans->repo, re->ref);
2688 		if (error)
2689 			goto done;
2690 
2691 		error = got_object_open_as_tag(&tag, gw_trans->repo, id);
2692 		if (error) {
2693 			if (error->code != GOT_ERR_OBJ_TYPE) {
2694 				free(id);
2695 				goto done;
2696 			}
2697 			/* "lightweight" tag */
2698 			error = got_object_open_as_commit(&commit,
2699 			    gw_trans->repo, id);
2700 			if (error) {
2701 				free(id);
2702 				goto done;
2703 			}
2704 			tagger = got_object_commit_get_committer(commit);
2705 			tagger_time =
2706 			    got_object_commit_get_committer_time(commit);
2707 			error = got_object_id_str(&id_str, id);
2708 			free(id);
2709 		} else {
2710 			free(id);
2711 			tagger = got_object_tag_get_tagger(tag);
2712 			tagger_time = got_object_tag_get_tagger_time(tag);
2713 			error = got_object_id_str(&id_str,
2714 			    got_object_tag_get_object_id(tag));
2715 		}
2716 		if (error)
2717 			goto done;
2718 
2719 		if (tag_type == TAGFULL && strncmp(id_str, header->commit_id,
2720 		    strlen(id_str)) != 0)
2721 			continue;
2722 
2723 		if (commit) {
2724 			error = got_object_commit_get_logmsg(&tag_commit0,
2725 			    commit);
2726 			if (error)
2727 				goto done;
2728 			got_object_commit_close(commit);
2729 		} else {
2730 			tag_commit0 = strdup(got_object_tag_get_message(tag));
2731 			if (tag_commit0 == NULL) {
2732 				error = got_error_from_errno("strdup");
2733 				goto done;
2734 			}
2735 		}
2736 
2737 		tag_commit = tag_commit0;
2738 		while (*tag_commit == '\n')
2739 			tag_commit++;
2740 
2741 		switch (tag_type) {
2742 		case TAGBRIEF:
2743 			newline = strchr(tag_commit, '\n');
2744 			if (newline)
2745 				*newline = '\0';
2746 
2747 			if (summary_header_displayed == 0) {
2748 				kerr = khtml_attr(gw_trans->gw_html_req,
2749 				    KELEM_DIV, KATTR_ID,
2750 				    "summary_tags_title_wrapper", KATTR__MAX);
2751 				if (kerr != KCGI_OK)
2752 					goto done;
2753 				kerr = khtml_attr(gw_trans->gw_html_req,
2754 				    KELEM_DIV, KATTR_ID,
2755 				    "summary_tags_title", KATTR__MAX);
2756 				if (kerr != KCGI_OK)
2757 					goto done;
2758 				kerr = khtml_puts(gw_trans->gw_html_req,
2759 				    "Tags");
2760 				if (kerr != KCGI_OK)
2761 					goto done;
2762 				kerr = khtml_closeelem(gw_trans->gw_html_req,
2763 				    2);
2764 				if (kerr != KCGI_OK)
2765 					goto done;
2766 				kerr = khtml_attr(gw_trans->gw_html_req,
2767 				    KELEM_DIV, KATTR_ID,
2768 				    "summary_tags_content", KATTR__MAX);
2769 				if (kerr != KCGI_OK)
2770 					goto done;
2771 				summary_header_displayed = 1;
2772 			}
2773 
2774 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2775 			    KATTR_ID, "tags_wrapper", KATTR__MAX);
2776 			if (kerr != KCGI_OK)
2777 				goto done;
2778 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2779 			    KATTR_ID, "tags_age", KATTR__MAX);
2780 			if (kerr != KCGI_OK)
2781 				goto done;
2782 			error = gw_get_time_str(&age, tagger_time, TM_DIFF);
2783 			if (error)
2784 				goto done;
2785 			kerr = khtml_puts(gw_trans->gw_html_req,
2786 			    age ? age : "");
2787 			if (kerr != KCGI_OK)
2788 				goto done;
2789 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2790 			if (kerr != KCGI_OK)
2791 				goto done;
2792 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2793 			    KATTR_ID, "tags", KATTR__MAX);
2794 			if (kerr != KCGI_OK)
2795 				goto done;
2796 			kerr = khtml_puts(gw_trans->gw_html_req, refname);
2797 			if (kerr != KCGI_OK)
2798 				goto done;
2799 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2800 			if (kerr != KCGI_OK)
2801 				goto done;
2802 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2803 			    KATTR_ID, "tags_name", KATTR__MAX);
2804 			if (kerr != KCGI_OK)
2805 				goto done;
2806 			if (asprintf(&href_tag, "?path=%s&action=tag&commit=%s",
2807 			    gw_trans->repo_name, id_str) == -1) {
2808 				error = got_error_from_errno("asprintf");
2809 				goto done;
2810 			}
2811 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2812 			    KATTR_HREF, href_tag, KATTR__MAX);
2813 			if (kerr != KCGI_OK)
2814 				goto done;
2815 			kerr = khtml_puts(gw_trans->gw_html_req, tag_commit);
2816 			if (kerr != KCGI_OK)
2817 				goto done;
2818 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
2819 			if (kerr != KCGI_OK)
2820 				goto done;
2821 
2822 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2823 			    KATTR_ID, "navs_wrapper", KATTR__MAX);
2824 			if (kerr != KCGI_OK)
2825 				goto done;
2826 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2827 			    KATTR_ID, "navs", KATTR__MAX);
2828 			if (kerr != KCGI_OK)
2829 				goto done;
2830 
2831 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2832 			    KATTR_HREF, href_tag, KATTR__MAX);
2833 			if (kerr != KCGI_OK)
2834 				goto done;
2835 			kerr = khtml_puts(gw_trans->gw_html_req, "tag");
2836 			if (kerr != KCGI_OK)
2837 				goto done;
2838 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2839 			if (kerr != KCGI_OK)
2840 				goto done;
2841 
2842 			kerr = khtml_puts(gw_trans->gw_html_req, " | ");
2843 			if (kerr != KCGI_OK)
2844 				goto done;
2845 			if (asprintf(&href_briefs,
2846 			    "?path=%s&action=briefs&commit=%s",
2847 			    gw_trans->repo_name, id_str) == -1) {
2848 				error = got_error_from_errno("asprintf");
2849 				goto done;
2850 			}
2851 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2852 			    KATTR_HREF, href_briefs, KATTR__MAX);
2853 			if (kerr != KCGI_OK)
2854 				goto done;
2855 			kerr = khtml_puts(gw_trans->gw_html_req,
2856 			    "commit briefs");
2857 			if (kerr != KCGI_OK)
2858 				goto done;
2859 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2860 			if (kerr != KCGI_OK)
2861 				goto done;
2862 
2863 			kerr = khtml_puts(gw_trans->gw_html_req, " | ");
2864 			if (kerr != KCGI_OK)
2865 				goto done;
2866 
2867 			if (asprintf(&href_commits,
2868 			    "?path=%s&action=commits&commit=%s",
2869 			    gw_trans->repo_name, id_str) == -1) {
2870 				error = got_error_from_errno("asprintf");
2871 				goto done;
2872 			}
2873 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2874 			    KATTR_HREF, href_commits, KATTR__MAX);
2875 			if (kerr != KCGI_OK)
2876 				goto done;
2877 			kerr = khtml_puts(gw_trans->gw_html_req,
2878 			    "commits");
2879 			if (kerr != KCGI_OK)
2880 				goto done;
2881 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
2882 			if (kerr != KCGI_OK)
2883 				goto done;
2884 
2885 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2886 			    KATTR_ID, "dotted_line", KATTR__MAX);
2887 			if (kerr != KCGI_OK)
2888 				goto done;
2889 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
2890 			if (kerr != KCGI_OK)
2891 				goto done;
2892 			break;
2893 		case TAGFULL:
2894 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2895 			    KATTR_ID, "tag_info_date_title", KATTR__MAX);
2896 			if (kerr != KCGI_OK)
2897 				goto done;
2898 			kerr = khtml_puts(gw_trans->gw_html_req, "Tag Date:");
2899 			if (kerr != KCGI_OK)
2900 				goto done;
2901 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2902 			if (kerr != KCGI_OK)
2903 				goto done;
2904 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2905 			    KATTR_ID, "tag_info_date", KATTR__MAX);
2906 			if (kerr != KCGI_OK)
2907 				goto done;
2908 			error = gw_get_time_str(&age, tagger_time, TM_LONG);
2909 			if (error)
2910 				goto done;
2911 			kerr = khtml_puts(gw_trans->gw_html_req,
2912 			    age ? age : "");
2913 			if (kerr != KCGI_OK)
2914 				goto done;
2915 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2916 			if (kerr != KCGI_OK)
2917 				goto done;
2918 
2919 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2920 			    KATTR_ID, "tag_info_tagger_title", KATTR__MAX);
2921 			if (kerr != KCGI_OK)
2922 				goto done;
2923 			kerr = khtml_puts(gw_trans->gw_html_req, "Tagger:");
2924 			if (kerr != KCGI_OK)
2925 				goto done;
2926 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2927 			if (kerr != KCGI_OK)
2928 				goto done;
2929 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2930 			    KATTR_ID, "tag_info_date", KATTR__MAX);
2931 			if (kerr != KCGI_OK)
2932 				goto done;
2933 			kerr = khtml_puts(gw_trans->gw_html_req, tagger);
2934 			if (kerr != KCGI_OK)
2935 				goto done;
2936 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2937 			if (kerr != KCGI_OK)
2938 				goto done;
2939 
2940 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2941 			    KATTR_ID, "tag_info", KATTR__MAX);
2942 			if (kerr != KCGI_OK)
2943 				goto done;
2944 			kerr = khttp_puts(gw_trans->gw_req, tag_commit);
2945 			if (kerr != KCGI_OK)
2946 				goto done;
2947 			break;
2948 		default:
2949 			break;
2950 		}
2951 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2952 		if (kerr != KCGI_OK)
2953 			goto done;
2954 
2955 		if (limit && --limit == 0)
2956 			break;
2957 
2958 		if (tag)
2959 			got_object_tag_close(tag);
2960 		tag = NULL;
2961 		free(id_str);
2962 		id_str = NULL;
2963 		free(age);
2964 		age = NULL;
2965 		free(tag_commit0);
2966 		tag_commit0 = NULL;
2967 		free(href_tag);
2968 		href_tag = NULL;
2969 		free(href_briefs);
2970 		href_briefs = NULL;
2971 		free(href_commits);
2972 		href_commits = NULL;
2973 	}
2974 done:
2975 	if (tag)
2976 		got_object_tag_close(tag);
2977 	free(id_str);
2978 	free(age);
2979 	free(tag_commit0);
2980 	free(href_tag);
2981 	free(href_briefs);
2982 	free(href_commits);
2983 	got_ref_list_free(&refs);
2984 	if (error == NULL && kerr != KCGI_OK)
2985 		error = gw_kcgi_error(kerr);
2986 	return error;
2987 }
2988 
2989 static void
2990 gw_free_header(struct gw_header *header)
2991 {
2992 	free(header->path);
2993 	free(header->author);
2994 	free(header->committer);
2995 	free(header->refs_str);
2996 	free(header->commit_id);
2997 	free(header->parent_id);
2998 	free(header->tree_id);
2999 	free(header->commit_msg);
3000 }
3001 
3002 static struct gw_header *
3003 gw_init_header()
3004 {
3005 	struct gw_header *header;
3006 
3007 	header = malloc(sizeof(*header));
3008 	if (header == NULL)
3009 		return NULL;
3010 
3011 	header->path = NULL;
3012 	SIMPLEQ_INIT(&header->refs);
3013 
3014 	header->refs_str = NULL;
3015 	header->commit_id = NULL;
3016 	header->committer = NULL;
3017 	header->author = NULL;
3018 	header->parent_id = NULL;
3019 	header->tree_id = NULL;
3020 	header->commit_msg = NULL;
3021 
3022 	return header;
3023 }
3024 
3025 static const struct got_error *
3026 gw_get_commits(struct gw_trans * gw_trans, struct gw_header *header,
3027     int limit, struct got_object_id *id)
3028 {
3029 	const struct got_error *error = NULL;
3030 	struct got_commit_graph *graph = NULL;
3031 	struct got_commit_object *commit = NULL;
3032 
3033 	error = got_commit_graph_open(&graph, header->path, 0);
3034 	if (error)
3035 		return error;
3036 
3037 	error = got_commit_graph_iter_start(graph, id, gw_trans->repo, NULL,
3038 	    NULL);
3039 	if (error)
3040 		goto done;
3041 
3042 	for (;;) {
3043 		error = got_commit_graph_iter_next(&id, graph, gw_trans->repo,
3044 		    NULL, NULL);
3045 		if (error) {
3046 			if (error->code == GOT_ERR_ITER_COMPLETED)
3047 				error = NULL;
3048 			goto done;
3049 		}
3050 		if (id == NULL)
3051 			goto done;
3052 
3053 		error = got_object_open_as_commit(&commit, gw_trans->repo, id);
3054 			if (error)
3055 				goto done;
3056 		if (limit == 1) {
3057 			error = gw_get_commit(gw_trans, header, commit, id);
3058 			if (error)
3059 				goto done;
3060 		} else {
3061 			struct gw_header *n_header = NULL;
3062 			if ((n_header = gw_init_header()) == NULL) {
3063 				error = got_error_from_errno("malloc");
3064 				goto done;
3065 			}
3066 			error = got_ref_list(&n_header->refs, gw_trans->repo,
3067 			    NULL, got_ref_cmp_by_name, NULL);
3068 			if (error)
3069 				goto done;
3070 
3071 			error = gw_get_commit(gw_trans, n_header, commit, id);
3072 			if (error)
3073 				goto done;
3074 			got_ref_list_free(&n_header->refs);
3075 			TAILQ_INSERT_TAIL(&gw_trans->gw_headers, n_header,
3076 			    entry);
3077 		}
3078 		if (error || (limit && --limit == 0))
3079 			break;
3080 	}
3081 done:
3082 	if (commit != NULL)
3083 		got_object_commit_close(commit);
3084 	if (graph)
3085 		got_commit_graph_close(graph);
3086 	return error;
3087 }
3088 
3089 static const struct got_error *
3090 gw_get_commit(struct gw_trans *gw_trans, struct gw_header *header,
3091     struct got_commit_object *commit, struct got_object_id *id)
3092 {
3093 	const struct got_error *error = NULL;
3094 	struct got_reflist_entry *re;
3095 	struct got_object_id *id2 = NULL;
3096 	struct got_object_qid *parent_id;
3097 	char *commit_msg = NULL, *commit_msg0;
3098 
3099 	/*print commit*/
3100 	SIMPLEQ_FOREACH(re, &header->refs, entry) {
3101 		char *s;
3102 		const char *name;
3103 		struct got_tag_object *tag = NULL;
3104 		int cmp;
3105 
3106 		if (got_ref_is_symbolic(re->ref))
3107 			continue;
3108 
3109 		name = got_ref_get_name(re->ref);
3110 		if (strncmp(name, "refs/", 5) == 0)
3111 			name += 5;
3112 		if (strncmp(name, "got/", 4) == 0)
3113 			continue;
3114 		if (strncmp(name, "heads/", 6) == 0)
3115 			name += 6;
3116 		if (strncmp(name, "remotes/", 8) == 0)
3117 			name += 8;
3118 		if (strncmp(name, "tags/", 5) == 0) {
3119 			error = got_object_open_as_tag(&tag, gw_trans->repo,
3120 			    re->id);
3121 			if (error) {
3122 				if (error->code != GOT_ERR_OBJ_TYPE)
3123 					continue;
3124 				/*
3125 				 * Ref points at something other
3126 				 * than a tag.
3127 				 */
3128 				error = NULL;
3129 				tag = NULL;
3130 			}
3131 		}
3132 		cmp = got_object_id_cmp(tag ?
3133 		    got_object_tag_get_object_id(tag) : re->id, id);
3134 		if (tag)
3135 			got_object_tag_close(tag);
3136 		if (cmp != 0)
3137 			continue;
3138 		s = header->refs_str;
3139 		if (asprintf(&header->refs_str, "%s%s%s", s ? s : "",
3140 		    s ? ", " : "", name) == -1) {
3141 			error = got_error_from_errno("asprintf");
3142 			free(s);
3143 			header->refs_str = NULL;
3144 			return error;
3145 		}
3146 		free(s);
3147 	}
3148 
3149 	error = got_object_id_str(&header->commit_id, id);
3150 	if (error)
3151 		return error;
3152 
3153 	error = got_object_id_str(&header->tree_id,
3154 	    got_object_commit_get_tree_id(commit));
3155 	if (error)
3156 		return error;
3157 
3158 	if (gw_trans->action == GW_DIFF) {
3159 		parent_id = SIMPLEQ_FIRST(
3160 		    got_object_commit_get_parent_ids(commit));
3161 		if (parent_id != NULL) {
3162 			id2 = got_object_id_dup(parent_id->id);
3163 			free (parent_id);
3164 			error = got_object_id_str(&header->parent_id, id2);
3165 			if (error)
3166 				return error;
3167 			free(id2);
3168 		} else {
3169 			header->parent_id = strdup("/dev/null");
3170 			if (header->parent_id == NULL) {
3171 				error = got_error_from_errno("strdup");
3172 				return error;
3173 			}
3174 		}
3175 	}
3176 
3177 	header->committer_time =
3178 	    got_object_commit_get_committer_time(commit);
3179 
3180 	header->author =
3181 	    strdup(got_object_commit_get_author(commit));
3182 	if (header->author == NULL) {
3183 		error = got_error_from_errno("strdup");
3184 		return error;
3185 	}
3186 	header->committer =
3187 	    strdup(got_object_commit_get_committer(commit));
3188 	if (header->committer == NULL) {
3189 		error = got_error_from_errno("strdup");
3190 		return error;
3191 	}
3192 	error = got_object_commit_get_logmsg(&commit_msg0, commit);
3193 	if (error)
3194 		return error;
3195 
3196 	commit_msg = commit_msg0;
3197 	while (*commit_msg == '\n')
3198 		commit_msg++;
3199 
3200 	header->commit_msg = strdup(commit_msg);
3201 	if (header->commit_msg == NULL)
3202 		error = got_error_from_errno("strdup");
3203 	free(commit_msg0);
3204 	return error;
3205 }
3206 
3207 static const struct got_error *
3208 gw_get_header(struct gw_trans *gw_trans, struct gw_header *header, int limit)
3209 {
3210 	const struct got_error *error = NULL;
3211 	char *in_repo_path = NULL;
3212 	struct got_object_id *id = NULL;
3213 
3214 	error = got_repo_open(&gw_trans->repo, gw_trans->repo_path, NULL);
3215 	if (error)
3216 		return error;
3217 
3218 	if (gw_trans->commit_id == NULL) {
3219 		struct got_reference *head_ref;
3220 		error = got_ref_open(&head_ref, gw_trans->repo,
3221 		    gw_trans->headref, 0);
3222 		if (error)
3223 			return error;
3224 
3225 		error = got_ref_resolve(&id, gw_trans->repo, head_ref);
3226 		got_ref_close(head_ref);
3227 		if (error)
3228 			return error;
3229 	} else {
3230 		struct got_reference *ref;
3231 		error = got_ref_open(&ref, gw_trans->repo,
3232 		    gw_trans->commit_id, 0);
3233 		if (error == NULL) {
3234 			int obj_type;
3235 			error = got_ref_resolve(&id, gw_trans->repo, ref);
3236 			got_ref_close(ref);
3237 			if (error)
3238 				return error;
3239 			error = got_object_get_type(&obj_type, gw_trans->repo,
3240 			    id);
3241 			if (error)
3242 				goto done;
3243 			if (obj_type == GOT_OBJ_TYPE_TAG) {
3244 				struct got_tag_object *tag;
3245 				error = got_object_open_as_tag(&tag,
3246 				    gw_trans->repo, id);
3247 				if (error)
3248 					goto done;
3249 				if (got_object_tag_get_object_type(tag) !=
3250 				    GOT_OBJ_TYPE_COMMIT) {
3251 					got_object_tag_close(tag);
3252 					error = got_error(GOT_ERR_OBJ_TYPE);
3253 					goto done;
3254 				}
3255 				free(id);
3256 				id = got_object_id_dup(
3257 				    got_object_tag_get_object_id(tag));
3258 				if (id == NULL)
3259 					error = got_error_from_errno(
3260 					    "got_object_id_dup");
3261 				got_object_tag_close(tag);
3262 				if (error)
3263 					goto done;
3264 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
3265 				error = got_error(GOT_ERR_OBJ_TYPE);
3266 				goto done;
3267 			}
3268 		}
3269 		error = got_repo_match_object_id_prefix(&id,
3270 			    gw_trans->commit_id, GOT_OBJ_TYPE_COMMIT,
3271 			    gw_trans->repo);
3272 		if (error)
3273 			goto done;
3274 	}
3275 
3276 	error = got_repo_map_path(&in_repo_path, gw_trans->repo,
3277 	    gw_trans->repo_path, 1);
3278 	if (error)
3279 		goto done;
3280 
3281 	if (in_repo_path) {
3282 		header->path = strdup(in_repo_path);
3283 		if (header->path == NULL) {
3284 			error = got_error_from_errno("strdup");
3285 			goto done;
3286 		}
3287 	}
3288 
3289 	error = got_ref_list(&header->refs, gw_trans->repo, NULL,
3290 	    got_ref_cmp_by_name, NULL);
3291 	if (error)
3292 		goto done;
3293 
3294 	error = gw_get_commits(gw_trans, header, limit, id);
3295 done:
3296 	got_ref_list_free(&header->refs);
3297 	free(id);
3298 	free(in_repo_path);
3299 	return error;
3300 }
3301 
3302 struct blame_line {
3303 	int annotated;
3304 	char *id_str;
3305 	char *committer;
3306 	char datebuf[11]; /* YYYY-MM-DD + NUL */
3307 };
3308 
3309 struct gw_blame_cb_args {
3310 	struct blame_line *lines;
3311 	int nlines;
3312 	int nlines_prec;
3313 	int lineno_cur;
3314 	off_t *line_offsets;
3315 	FILE *f;
3316 	struct got_repository *repo;
3317 	struct gw_trans *gw_trans;
3318 };
3319 
3320 static const struct got_error *
3321 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
3322 {
3323 	const struct got_error *err = NULL;
3324 	struct gw_blame_cb_args *a = arg;
3325 	struct blame_line *bline;
3326 	char *line = NULL;
3327 	size_t linesize = 0;
3328 	struct got_commit_object *commit = NULL;
3329 	off_t offset;
3330 	struct tm tm;
3331 	time_t committer_time;
3332 	enum kcgi_err kerr = KCGI_OK;
3333 
3334 	if (nlines != a->nlines ||
3335 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
3336 		return got_error(GOT_ERR_RANGE);
3337 
3338 	if (lineno == -1)
3339 		return NULL; /* no change in this commit */
3340 
3341 	/* Annotate this line. */
3342 	bline = &a->lines[lineno - 1];
3343 	if (bline->annotated)
3344 		return NULL;
3345 	err = got_object_id_str(&bline->id_str, id);
3346 	if (err)
3347 		return err;
3348 
3349 	err = got_object_open_as_commit(&commit, a->repo, id);
3350 	if (err)
3351 		goto done;
3352 
3353 	bline->committer = strdup(got_object_commit_get_committer(commit));
3354 	if (bline->committer == NULL) {
3355 		err = got_error_from_errno("strdup");
3356 		goto done;
3357 	}
3358 
3359 	committer_time = got_object_commit_get_committer_time(commit);
3360 	if (localtime_r(&committer_time, &tm) == NULL)
3361 		return got_error_from_errno("localtime_r");
3362 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
3363 	    &tm) >= sizeof(bline->datebuf)) {
3364 		err = got_error(GOT_ERR_NO_SPACE);
3365 		goto done;
3366 	}
3367 	bline->annotated = 1;
3368 
3369 	/* Print lines annotated so far. */
3370 	bline = &a->lines[a->lineno_cur - 1];
3371 	if (!bline->annotated)
3372 		goto done;
3373 
3374 	offset = a->line_offsets[a->lineno_cur - 1];
3375 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
3376 		err = got_error_from_errno("fseeko");
3377 		goto done;
3378 	}
3379 
3380 	while (bline->annotated) {
3381 		char *smallerthan, *at, *nl, *committer;
3382 		char *lineno = NULL, *href_diff = NULL, *href_link = NULL;
3383 		size_t len;
3384 
3385 		if (getline(&line, &linesize, a->f) == -1) {
3386 			if (ferror(a->f))
3387 				err = got_error_from_errno("getline");
3388 			break;
3389 		}
3390 
3391 		committer = bline->committer;
3392 		smallerthan = strchr(committer, '<');
3393 		if (smallerthan && smallerthan[1] != '\0')
3394 			committer = smallerthan + 1;
3395 		at = strchr(committer, '@');
3396 		if (at)
3397 			*at = '\0';
3398 		len = strlen(committer);
3399 		if (len >= 9)
3400 			committer[8] = '\0';
3401 
3402 		nl = strchr(line, '\n');
3403 		if (nl)
3404 			*nl = '\0';
3405 
3406 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3407 		    "blame_wrapper", KATTR__MAX);
3408 		if (kerr != KCGI_OK)
3409 			goto err;
3410 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3411 		    "blame_number", KATTR__MAX);
3412 		if (kerr != KCGI_OK)
3413 			goto err;
3414 		if (asprintf(&lineno, "%.*d", a->nlines_prec,
3415 		    a->lineno_cur) == -1)
3416 			goto err;
3417 		kerr = khtml_puts(a->gw_trans->gw_html_req, lineno);
3418 		if (kerr != KCGI_OK)
3419 			goto err;
3420 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3421 		if (kerr != KCGI_OK)
3422 			goto err;
3423 
3424 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3425 		    "blame_hash", KATTR__MAX);
3426 		if (kerr != KCGI_OK)
3427 			goto err;
3428 
3429 		if (asprintf(&href_diff,
3430 		    "?path=%s&action=diff&commit=%s",
3431 		    a->gw_trans->repo_name, bline->id_str) == -1) {
3432 			err = got_error_from_errno("asprintf");
3433 			goto err;
3434 		}
3435 		if (asprintf(&href_link, "%.8s", bline->id_str) == -1) {
3436 			err = got_error_from_errno("asprintf");
3437 			goto err;
3438 		}
3439 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_A,
3440 		    KATTR_HREF, href_diff, KATTR__MAX);
3441 		if (kerr != KCGI_OK)
3442 			goto done;
3443 		kerr = khtml_puts(a->gw_trans->gw_html_req, href_link);
3444 		if (kerr != KCGI_OK)
3445 			goto err;
3446 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 2);
3447 		if (kerr != KCGI_OK)
3448 			goto err;
3449 
3450 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3451 		    "blame_date", KATTR__MAX);
3452 		if (kerr != KCGI_OK)
3453 			goto err;
3454 		kerr = khtml_puts(a->gw_trans->gw_html_req, bline->datebuf);
3455 		if (kerr != KCGI_OK)
3456 			goto err;
3457 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3458 		if (kerr != KCGI_OK)
3459 			goto err;
3460 
3461 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3462 		    "blame_author", KATTR__MAX);
3463 		if (kerr != KCGI_OK)
3464 			goto err;
3465 		kerr = khtml_puts(a->gw_trans->gw_html_req, committer);
3466 		if (kerr != KCGI_OK)
3467 			goto err;
3468 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3469 		if (kerr != KCGI_OK)
3470 			goto err;
3471 
3472 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3473 		    "blame_code", KATTR__MAX);
3474 		if (kerr != KCGI_OK)
3475 			goto err;
3476 		kerr = khtml_puts(a->gw_trans->gw_html_req, line);
3477 		if (kerr != KCGI_OK)
3478 			goto err;
3479 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3480 		if (kerr != KCGI_OK)
3481 			goto err;
3482 
3483 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3484 		if (kerr != KCGI_OK)
3485 			goto err;
3486 
3487 		a->lineno_cur++;
3488 		bline = &a->lines[a->lineno_cur - 1];
3489 err:
3490 		free(lineno);
3491 		free(href_diff);
3492 		free(href_link);
3493 	}
3494 done:
3495 	if (commit)
3496 		got_object_commit_close(commit);
3497 	free(line);
3498 	if (err == NULL && kerr != KCGI_OK)
3499 		err = gw_kcgi_error(kerr);
3500 	return err;
3501 }
3502 
3503 static const struct got_error *
3504 gw_output_file_blame(struct gw_trans *gw_trans)
3505 {
3506 	const struct got_error *error = NULL;
3507 	struct got_object_id *obj_id = NULL;
3508 	struct got_object_id *commit_id = NULL;
3509 	struct got_blob_object *blob = NULL;
3510 	char *path = NULL, *in_repo_path = NULL;
3511 	struct gw_blame_cb_args bca;
3512 	int i, obj_type;
3513 	size_t filesize;
3514 
3515 	if (asprintf(&path, "%s%s%s",
3516 	    gw_trans->repo_folder ? gw_trans->repo_folder : "",
3517 	    gw_trans->repo_folder ? "/" : "",
3518 	    gw_trans->repo_file) == -1) {
3519 		error = got_error_from_errno("asprintf");
3520 		goto done;
3521 	}
3522 
3523 	error = got_repo_map_path(&in_repo_path, gw_trans->repo, path, 1);
3524 	if (error)
3525 		goto done;
3526 
3527 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit_id,
3528 	    GOT_OBJ_TYPE_COMMIT, 1, gw_trans->repo);
3529 	if (error)
3530 		goto done;
3531 
3532 	error = got_object_id_by_path(&obj_id, gw_trans->repo, commit_id,
3533 	    in_repo_path);
3534 	if (error)
3535 		goto done;
3536 
3537 	if (obj_id == NULL) {
3538 		error = got_error(GOT_ERR_NO_OBJ);
3539 		goto done;
3540 	}
3541 
3542 	error = got_object_get_type(&obj_type, gw_trans->repo, obj_id);
3543 	if (error)
3544 		goto done;
3545 
3546 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
3547 		error = got_error(GOT_ERR_OBJ_TYPE);
3548 		goto done;
3549 	}
3550 
3551 	error = got_object_open_as_blob(&blob, gw_trans->repo, obj_id, 8192);
3552 	if (error)
3553 		goto done;
3554 
3555 	bca.f = got_opentemp();
3556 	if (bca.f == NULL) {
3557 		error = got_error_from_errno("got_opentemp");
3558 		goto done;
3559 	}
3560 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
3561 	    &bca.line_offsets, bca.f, blob);
3562 	if (error || bca.nlines == 0)
3563 		goto done;
3564 
3565 	/* Don't include \n at EOF in the blame line count. */
3566 	if (bca.line_offsets[bca.nlines - 1] == filesize)
3567 		bca.nlines--;
3568 
3569 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
3570 	if (bca.lines == NULL) {
3571 		error = got_error_from_errno("calloc");
3572 		goto done;
3573 	}
3574 	bca.lineno_cur = 1;
3575 	bca.nlines_prec = 0;
3576 	i = bca.nlines;
3577 	while (i > 0) {
3578 		i /= 10;
3579 		bca.nlines_prec++;
3580 	}
3581 	bca.repo = gw_trans->repo;
3582 	bca.gw_trans = gw_trans;
3583 
3584 	error = got_blame(in_repo_path, commit_id, gw_trans->repo, gw_blame_cb,
3585 	    &bca, NULL, NULL);
3586 done:
3587 	free(in_repo_path);
3588 	free(commit_id);
3589 	free(obj_id);
3590 	free(path);
3591 
3592 	if (blob) {
3593 		free(bca.line_offsets);
3594 		for (i = 0; i < bca.nlines; i++) {
3595 			struct blame_line *bline = &bca.lines[i];
3596 			free(bline->id_str);
3597 			free(bline->committer);
3598 		}
3599 		free(bca.lines);
3600 		if (bca.f && fclose(bca.f) == EOF && error == NULL)
3601 			error = got_error_from_errno("fclose");
3602 	}
3603 	if (blob)
3604 		got_object_blob_close(blob);
3605 	return error;
3606 }
3607 
3608 static const struct got_error *
3609 gw_output_blob_buf(struct gw_trans *gw_trans)
3610 {
3611 	const struct got_error *error = NULL;
3612 	struct got_object_id *obj_id = NULL;
3613 	struct got_object_id *commit_id = NULL;
3614 	struct got_blob_object *blob = NULL;
3615 	char *path = NULL, *in_repo_path = NULL;
3616 	int obj_type, set_mime = 0;
3617 	size_t len, hdrlen;
3618 	const uint8_t *buf;
3619 	enum kcgi_err kerr = KCGI_OK;
3620 
3621 	if (asprintf(&path, "%s%s%s",
3622 	    gw_trans->repo_folder ? gw_trans->repo_folder : "",
3623 	    gw_trans->repo_folder ? "/" : "",
3624 	    gw_trans->repo_file) == -1) {
3625 		error = got_error_from_errno("asprintf");
3626 		goto done;
3627 	}
3628 
3629 	error = got_repo_map_path(&in_repo_path, gw_trans->repo, path, 1);
3630 	if (error)
3631 		goto done;
3632 
3633 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit_id,
3634 	    GOT_OBJ_TYPE_COMMIT, 1, gw_trans->repo);
3635 	if (error)
3636 		goto done;
3637 
3638 	error = got_object_id_by_path(&obj_id, gw_trans->repo, commit_id,
3639 	    in_repo_path);
3640 	if (error)
3641 		goto done;
3642 
3643 	if (obj_id == NULL) {
3644 		error = got_error(GOT_ERR_NO_OBJ);
3645 		goto done;
3646 	}
3647 
3648 	error = got_object_get_type(&obj_type, gw_trans->repo, obj_id);
3649 	if (error)
3650 		goto done;
3651 
3652 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
3653 		error = got_error(GOT_ERR_OBJ_TYPE);
3654 		goto done;
3655 	}
3656 
3657 	error = got_object_open_as_blob(&blob, gw_trans->repo, obj_id, 8192);
3658 	if (error)
3659 		goto done;
3660 
3661 	hdrlen = got_object_blob_get_hdrlen(blob);
3662 	do {
3663 		error = got_object_blob_read_block(&len, blob);
3664 		if (error)
3665 			goto done;
3666 		buf = got_object_blob_get_read_buf(blob);
3667 
3668 		/*
3669 		 * Skip blob object header first time around,
3670 		 * which also contains a zero byte.
3671 		 */
3672 		buf += hdrlen;
3673 		if (set_mime == 0) {
3674 			if (isbinary(buf, len - hdrlen))
3675 				gw_trans->mime = KMIME_APP_OCTET_STREAM;
3676 			else
3677 				gw_trans->mime = KMIME_TEXT_PLAIN;
3678 			set_mime = 1;
3679 			error = gw_display_index(gw_trans);
3680 			if (error)
3681 				goto done;
3682 		}
3683 		kerr = khttp_write(gw_trans->gw_req, buf, len - hdrlen);
3684 		if (kerr != KCGI_OK)
3685 			goto done;
3686 		hdrlen = 0;
3687 	} while (len != 0);
3688 done:
3689 	free(in_repo_path);
3690 	free(commit_id);
3691 	free(obj_id);
3692 	free(path);
3693 	if (blob)
3694 		got_object_blob_close(blob);
3695 	if (error == NULL && kerr != KCGI_OK)
3696 		error = gw_kcgi_error(kerr);
3697 	return error;
3698 }
3699 
3700 static const struct got_error *
3701 gw_output_repo_tree(struct gw_trans *gw_trans)
3702 {
3703 	const struct got_error *error = NULL;
3704 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
3705 	struct got_tree_object *tree = NULL;
3706 	char *path = NULL, *in_repo_path = NULL;
3707 	char *id_str = NULL;
3708 	char *build_folder = NULL;
3709 	char *href_blob = NULL, *href_blame = NULL;
3710 	const char *class = NULL;
3711 	int nentries, i, class_flip = 0;
3712 	enum kcgi_err kerr = KCGI_OK;
3713 
3714 	if (gw_trans->repo_folder != NULL) {
3715 		path = strdup(gw_trans->repo_folder);
3716 		if (path == NULL) {
3717 			error = got_error_from_errno("strdup");
3718 			goto done;
3719 		}
3720 	} else {
3721 		error = got_repo_map_path(&in_repo_path, gw_trans->repo,
3722 		    gw_trans->repo_path, 1);
3723 		if (error)
3724 			goto done;
3725 		free(path);
3726 		path = in_repo_path;
3727 	}
3728 
3729 	if (gw_trans->commit_id == NULL) {
3730 		struct got_reference *head_ref;
3731 		error = got_ref_open(&head_ref, gw_trans->repo,
3732 		    gw_trans->headref, 0);
3733 		if (error)
3734 			goto done;
3735 		error = got_ref_resolve(&commit_id, gw_trans->repo, head_ref);
3736 		if (error)
3737 			goto done;
3738 		got_ref_close(head_ref);
3739 		/*
3740 		 * gw_trans->commit_id was not parsed from the querystring
3741 		 * we hit this code path from gw_index, where we don't know the
3742 		 * commit values for the tree link yet, so set
3743 		 * gw_trans->commit_id here to continue further into the tree
3744 		 */
3745 		error = got_object_id_str(&gw_trans->commit_id, commit_id);
3746 		if (error)
3747 			goto done;
3748 
3749 	} else {
3750 		error = got_repo_match_object_id(&commit_id, NULL,
3751 		    gw_trans->commit_id, GOT_OBJ_TYPE_COMMIT, 1,
3752 		    gw_trans->repo);
3753 		if (error)
3754 			goto done;
3755 	}
3756 
3757 	error = got_object_id_by_path(&tree_id, gw_trans->repo, commit_id,
3758 	    path);
3759 	if (error)
3760 		goto done;
3761 
3762 	error = got_object_open_as_tree(&tree, gw_trans->repo, tree_id);
3763 	if (error)
3764 		goto done;
3765 
3766 	nentries = got_object_tree_get_nentries(tree);
3767 	for (i = 0; i < nentries; i++) {
3768 		struct got_tree_entry *te;
3769 		const char *modestr = "";
3770 		mode_t mode;
3771 
3772 		te = got_object_tree_get_entry(tree, i);
3773 
3774 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
3775 		if (error)
3776 			goto done;
3777 
3778 		mode = got_tree_entry_get_mode(te);
3779 		if (got_object_tree_entry_is_submodule(te))
3780 			modestr = "$";
3781 		else if (S_ISLNK(mode))
3782 			modestr = "@";
3783 		else if (S_ISDIR(mode))
3784 			modestr = "/";
3785 		else if (mode & S_IXUSR)
3786 			modestr = "*";
3787 
3788 		if (class_flip == 0) {
3789 			class = "back_lightgray";
3790 			class_flip = 1;
3791 		} else {
3792 			class = "back_white";
3793 			class_flip = 0;
3794 		}
3795 
3796 		if (S_ISDIR(mode)) {
3797 			if (asprintf(&build_folder, "%s/%s",
3798 			    gw_trans->repo_folder ? gw_trans->repo_folder : "",
3799 			    got_tree_entry_get_name(te)) == -1) {
3800 				error = got_error_from_errno("asprintf");
3801 				goto done;
3802 			}
3803 			if (asprintf(&href_blob,
3804 			    "?path=%s&action=%s&commit=%s&folder=%s",
3805 			    gw_trans->repo_name, gw_get_action_name(gw_trans),
3806 			    gw_trans->commit_id, build_folder) == -1) {
3807 				error = got_error_from_errno("asprintf");
3808 				goto done;
3809 			}
3810 
3811 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3812 			    KATTR_ID, "tree_wrapper", KATTR__MAX);
3813 			if (kerr != KCGI_OK)
3814 				goto done;
3815 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3816 			    KATTR_ID, "tree_line", KATTR_CLASS, class,
3817 			    KATTR__MAX);
3818 			if (kerr != KCGI_OK)
3819 				goto done;
3820 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3821 			    KATTR_HREF, href_blob, KATTR_CLASS,
3822 			    "diff_directory", KATTR__MAX);
3823 			if (kerr != KCGI_OK)
3824 				goto done;
3825 			kerr = khtml_puts(gw_trans->gw_html_req,
3826 			    got_tree_entry_get_name(te));
3827 			if (kerr != KCGI_OK)
3828 				goto done;
3829 			kerr = khtml_puts(gw_trans->gw_html_req, modestr);
3830 			if (kerr != KCGI_OK)
3831 				goto done;
3832 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3833 			if (kerr != KCGI_OK)
3834 				goto done;
3835 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3836 			    KATTR_ID, "tree_line_blank", KATTR_CLASS, class,
3837 			    KATTR__MAX);
3838 			if (kerr != KCGI_OK)
3839 				goto done;
3840 			kerr = khtml_entity(gw_trans->gw_html_req,
3841 			    KENTITY_nbsp);
3842 			if (kerr != KCGI_OK)
3843 				goto done;
3844 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3845 			if (kerr != KCGI_OK)
3846 				goto done;
3847 		} else {
3848 			if (asprintf(&href_blob,
3849 			    "?path=%s&action=%s&commit=%s&file=%s&folder=%s",
3850 			    gw_trans->repo_name, "blob", gw_trans->commit_id,
3851 			    got_tree_entry_get_name(te),
3852 			    gw_trans->repo_folder ?
3853 			    gw_trans->repo_folder : "") == -1) {
3854 				error = got_error_from_errno("asprintf");
3855 				goto done;
3856 			}
3857 			if (asprintf(&href_blame,
3858 			    "?path=%s&action=%s&commit=%s&file=%s&folder=%s",
3859 			    gw_trans->repo_name, "blame", gw_trans->commit_id,
3860 			    got_tree_entry_get_name(te),
3861 			    gw_trans->repo_folder ?
3862 			    gw_trans->repo_folder : "") == -1) {
3863 				error = got_error_from_errno("asprintf");
3864 				goto done;
3865 			}
3866 
3867 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3868 			    KATTR_ID, "tree_wrapper", KATTR__MAX);
3869 			if (kerr != KCGI_OK)
3870 				goto done;
3871 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3872 			    KATTR_ID, "tree_line", KATTR_CLASS, class,
3873 			    KATTR__MAX);
3874 			if (kerr != KCGI_OK)
3875 				goto done;
3876 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3877 			    KATTR_HREF, href_blob, KATTR__MAX);
3878 			if (kerr != KCGI_OK)
3879 				goto done;
3880 			kerr = khtml_puts(gw_trans->gw_html_req,
3881 			    got_tree_entry_get_name(te));
3882 			if (kerr != KCGI_OK)
3883 				goto done;
3884 			kerr = khtml_puts(gw_trans->gw_html_req, modestr);
3885 			if (kerr != KCGI_OK)
3886 				goto done;
3887 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3888 			if (kerr != KCGI_OK)
3889 				goto done;
3890 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3891 			    KATTR_ID, "tree_line_navs", KATTR_CLASS, class,
3892 			    KATTR__MAX);
3893 			if (kerr != KCGI_OK)
3894 				goto done;
3895 
3896 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3897 			    KATTR_HREF, href_blob, KATTR__MAX);
3898 			if (kerr != KCGI_OK)
3899 				goto done;
3900 			kerr = khtml_puts(gw_trans->gw_html_req, "blob");
3901 			if (kerr != KCGI_OK)
3902 				goto done;
3903 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
3904 			if (kerr != KCGI_OK)
3905 				goto done;
3906 
3907 			kerr = khtml_puts(gw_trans->gw_html_req, " | ");
3908 			if (kerr != KCGI_OK)
3909 				goto done;
3910 
3911 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3912 			    KATTR_HREF, href_blame, KATTR__MAX);
3913 			if (kerr != KCGI_OK)
3914 				goto done;
3915 			kerr = khtml_puts(gw_trans->gw_html_req, "blame");
3916 			if (kerr != KCGI_OK)
3917 				goto done;
3918 
3919 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
3920 			if (kerr != KCGI_OK)
3921 				goto done;
3922 		}
3923 		free(id_str);
3924 		id_str = NULL;
3925 		free(href_blob);
3926 		href_blob = NULL;
3927 		free(build_folder);
3928 		build_folder = NULL;
3929 	}
3930 done:
3931 	if (tree)
3932 		got_object_tree_close(tree);
3933 	free(id_str);
3934 	free(href_blob);
3935 	free(href_blame);
3936 	free(in_repo_path);
3937 	free(tree_id);
3938 	free(build_folder);
3939 	if (error == NULL && kerr != KCGI_OK)
3940 		error = gw_kcgi_error(kerr);
3941 	return error;
3942 }
3943 
3944 static const struct got_error *
3945 gw_output_repo_heads(struct gw_trans *gw_trans)
3946 {
3947 	const struct got_error *error = NULL;
3948 	struct got_reflist_head refs;
3949 	struct got_reflist_entry *re;
3950 	char *age = NULL, *href_summary = NULL, *href_briefs = NULL;
3951 	char *href_commits = NULL;
3952 	enum kcgi_err kerr = KCGI_OK;
3953 
3954 	SIMPLEQ_INIT(&refs);
3955 
3956 	error = got_ref_list(&refs, gw_trans->repo, "refs/heads",
3957 	    got_ref_cmp_by_name, NULL);
3958 	if (error)
3959 		goto done;
3960 
3961 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3962 	    KATTR_ID, "summary_heads_title_wrapper", KATTR__MAX);
3963 	if (kerr != KCGI_OK)
3964 		goto done;
3965 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3966 	    KATTR_ID, "summary_heads_title", KATTR__MAX);
3967 	if (kerr != KCGI_OK)
3968 		goto done;
3969 	kerr = khtml_puts(gw_trans->gw_html_req, "Heads");
3970 	if (kerr != KCGI_OK)
3971 		goto done;
3972 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3973 	if (kerr != KCGI_OK)
3974 		goto done;
3975 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3976 	    KATTR_ID, "summary_heads_content", KATTR__MAX);
3977 	if (kerr != KCGI_OK)
3978 		goto done;
3979 
3980 	SIMPLEQ_FOREACH(re, &refs, entry) {
3981 		const char *refname;
3982 
3983 		if (got_ref_is_symbolic(re->ref))
3984 			continue;
3985 
3986 		refname = got_ref_get_name(re->ref);
3987 		if (strncmp(refname, "refs/heads/", 11) != 0)
3988 			continue;
3989 
3990 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path,
3991 		    refname, TM_DIFF);
3992 		if (error)
3993 			goto done;
3994 
3995 		if (strncmp(refname, "refs/heads/", 11) == 0)
3996 			refname += 11;
3997 
3998 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3999 		    KATTR_ID, "heads_wrapper", KATTR__MAX);
4000 		if (kerr != KCGI_OK)
4001 			goto done;
4002 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
4003 		    KATTR_ID, "heads_age", KATTR__MAX);
4004 		if (kerr != KCGI_OK)
4005 			goto done;
4006 		kerr = khtml_puts(gw_trans->gw_html_req, age ? age : "");
4007 		if (kerr != KCGI_OK)
4008 			goto done;
4009 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4010 		if (kerr != KCGI_OK)
4011 			goto done;
4012 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
4013 		    KATTR_ID, "heads_space", KATTR__MAX);
4014 		if (kerr != KCGI_OK)
4015 			goto done;
4016 		kerr = khtml_entity(gw_trans->gw_html_req, KENTITY_nbsp);
4017 		if (kerr != KCGI_OK)
4018 			goto done;
4019 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4020 		if (kerr != KCGI_OK)
4021 			goto done;
4022 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
4023 		    KATTR_ID, "head", KATTR__MAX);
4024 		if (kerr != KCGI_OK)
4025 			goto done;
4026 		if (asprintf(&href_summary,
4027 		    "?path=%s&action=summary&headref=%s",
4028 		    gw_trans->repo_name, refname) == -1) {
4029 			error = got_error_from_errno("asprintf");
4030 			goto done;
4031 		}
4032 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4033 		    href_summary, KATTR__MAX);
4034 		kerr = khtml_puts(gw_trans->gw_html_req, refname);
4035 		if (kerr != KCGI_OK)
4036 			goto done;
4037 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
4038 		if (kerr != KCGI_OK)
4039 			goto done;
4040 
4041 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4042 		    "navs_wrapper", KATTR__MAX);
4043 		if (kerr != KCGI_OK)
4044 			goto done;
4045 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4046 		    "navs", KATTR__MAX);
4047 		if (kerr != KCGI_OK)
4048 			goto done;
4049 
4050 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4051 		    href_summary, KATTR__MAX);
4052 		if (kerr != KCGI_OK)
4053 			goto done;
4054 		kerr = khtml_puts(gw_trans->gw_html_req, "summary");
4055 		if (kerr != KCGI_OK)
4056 			goto done;
4057 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4058 		if (kerr != KCGI_OK)
4059 			goto done;
4060 
4061 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
4062 		if (kerr != KCGI_OK)
4063 			goto done;
4064 		if (asprintf(&href_briefs, "?path=%s&action=briefs&headref=%s",
4065 		    gw_trans->repo_name, refname) == -1) {
4066 			error = got_error_from_errno("asprintf");
4067 			goto done;
4068 		}
4069 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4070 		    href_briefs, KATTR__MAX);
4071 		if (kerr != KCGI_OK)
4072 			goto done;
4073 		kerr = khtml_puts(gw_trans->gw_html_req, "commit briefs");
4074 		if (kerr != KCGI_OK)
4075 			goto done;
4076 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4077 		if (kerr != KCGI_OK)
4078 			goto done;
4079 
4080 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
4081 		if (kerr != KCGI_OK)
4082 			goto done;
4083 
4084 		if (asprintf(&href_commits,
4085 		    "?path=%s&action=commits&headref=%s",
4086 		    gw_trans->repo_name, refname) == -1) {
4087 			error = got_error_from_errno("asprintf");
4088 			goto done;
4089 		}
4090 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4091 		    href_commits, KATTR__MAX);
4092 		if (kerr != KCGI_OK)
4093 			goto done;
4094 		kerr = khtml_puts(gw_trans->gw_html_req, "commits");
4095 		if (kerr != KCGI_OK)
4096 			goto done;
4097 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
4098 		if (kerr != KCGI_OK)
4099 			goto done;
4100 
4101 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4102 		    "dotted_line", KATTR__MAX);
4103 		if (kerr != KCGI_OK)
4104 			goto done;
4105 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
4106 		if (kerr != KCGI_OK)
4107 			goto done;
4108 		free(href_summary);
4109 		href_summary = NULL;
4110 		free(href_briefs);
4111 		href_briefs = NULL;
4112 		free(href_commits);
4113 		href_commits = NULL;
4114 	}
4115 done:
4116 	got_ref_list_free(&refs);
4117 	free(href_summary);
4118 	free(href_briefs);
4119 	free(href_commits);
4120 	return error;
4121 }
4122 
4123 static const struct got_error *
4124 gw_output_site_link(struct gw_trans *gw_trans)
4125 {
4126 	const struct got_error *error = NULL;
4127 	char *href_summary = NULL;
4128 	enum kcgi_err kerr = KCGI_OK;
4129 
4130 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4131 	    "site_link", KATTR__MAX);
4132 	if (kerr != KCGI_OK)
4133 		goto done;
4134 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF, GOTWEB,
4135 	    KATTR__MAX);
4136 	if (kerr != KCGI_OK)
4137 		goto done;
4138 	kerr = khtml_puts(gw_trans->gw_html_req,
4139 	   gw_trans->gw_conf->got_site_link);
4140 	if (kerr != KCGI_OK)
4141 		goto done;
4142 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4143 	if (kerr != KCGI_OK)
4144 		goto done;
4145 
4146 	if (gw_trans->repo_name != NULL) {
4147 		kerr = khtml_puts(gw_trans->gw_html_req, " / ");
4148 		if (kerr != KCGI_OK)
4149 			goto done;
4150 		if (asprintf(&href_summary, "?path=%s&action=summary",
4151 		    gw_trans->repo_name) == -1)
4152 			goto done;
4153 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4154 		    href_summary, KATTR__MAX);
4155 		if (kerr != KCGI_OK)
4156 			goto done;
4157 		kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->repo_name);
4158 		if (kerr != KCGI_OK)
4159 			goto done;
4160 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4161 		if (kerr != KCGI_OK)
4162 			goto done;
4163 		kerr = khtml_puts(gw_trans->gw_html_req, " / ");
4164 		if (kerr != KCGI_OK)
4165 			goto done;
4166 		kerr = khtml_puts(gw_trans->gw_html_req,
4167 		    gw_get_action_name(gw_trans));
4168 		if (kerr != KCGI_OK)
4169 			goto done;
4170 	}
4171 
4172 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4173 	if (kerr != KCGI_OK)
4174 		goto done;
4175 done:
4176 	free(href_summary);
4177 	return error;
4178 }
4179 
4180 static const struct got_error *
4181 gw_colordiff_line(struct gw_trans *gw_trans, char *buf)
4182 {
4183 	const struct got_error *error = NULL;
4184 	char *color = NULL;
4185 	enum kcgi_err kerr = KCGI_OK;
4186 
4187 	if (strncmp(buf, "-", 1) == 0)
4188 		color = "diff_minus";
4189 	else if (strncmp(buf, "+", 1) == 0)
4190 		color = "diff_plus";
4191 	else if (strncmp(buf, "@@", 2) == 0)
4192 		color = "diff_chunk_header";
4193 	else if (strncmp(buf, "@@", 2) == 0)
4194 		color = "diff_chunk_header";
4195 	else if (strncmp(buf, "commit +", 8) == 0)
4196 		color = "diff_meta";
4197 	else if (strncmp(buf, "commit -", 8) == 0)
4198 		color = "diff_meta";
4199 	else if (strncmp(buf, "blob +", 6) == 0)
4200 		color = "diff_meta";
4201 	else if (strncmp(buf, "blob -", 6) == 0)
4202 		color = "diff_meta";
4203 	else if (strncmp(buf, "file +", 6) == 0)
4204 		color = "diff_meta";
4205 	else if (strncmp(buf, "file -", 6) == 0)
4206 		color = "diff_meta";
4207 	else if (strncmp(buf, "from:", 5) == 0)
4208 		color = "diff_author";
4209 	else if (strncmp(buf, "via:", 4) == 0)
4210 		color = "diff_author";
4211 	else if (strncmp(buf, "date:", 5) == 0)
4212 		color = "diff_date";
4213 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4214 	    "diff_line", KATTR_CLASS, color ? color : "", KATTR__MAX);
4215 	if (error == NULL && kerr != KCGI_OK)
4216 		error = gw_kcgi_error(kerr);
4217 	return error;
4218 }
4219 
4220 int
4221 main(int argc, char *argv[])
4222 {
4223 	const struct got_error *error = NULL;
4224 	struct gw_trans *gw_trans;
4225 	struct gw_dir *dir = NULL, *tdir;
4226 	const char *page = "index";
4227 	int gw_malloc = 1;
4228 	enum kcgi_err kerr;
4229 
4230 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
4231 		errx(1, "malloc");
4232 
4233 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
4234 		errx(1, "malloc");
4235 
4236 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
4237 		errx(1, "malloc");
4238 
4239 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
4240 		errx(1, "malloc");
4241 
4242 	kerr = khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX, &page, 1, 0);
4243 	if (kerr != KCGI_OK) {
4244 		error = gw_kcgi_error(kerr);
4245 		goto done;
4246 	}
4247 
4248 	if ((gw_trans->gw_conf =
4249 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
4250 		gw_malloc = 0;
4251 		error = got_error_from_errno("malloc");
4252 		goto done;
4253 	}
4254 
4255 	TAILQ_INIT(&gw_trans->gw_dirs);
4256 	TAILQ_INIT(&gw_trans->gw_headers);
4257 
4258 	gw_trans->action = -1;
4259 	gw_trans->page = 0;
4260 	gw_trans->repos_total = 0;
4261 	gw_trans->repo_path = NULL;
4262 	gw_trans->commit_id = NULL;
4263 	gw_trans->headref = GOT_REF_HEAD;
4264 	gw_trans->mime = KMIME_TEXT_HTML;
4265 	gw_trans->gw_tmpl->key = gw_templs;
4266 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
4267 	gw_trans->gw_tmpl->arg = gw_trans;
4268 	gw_trans->gw_tmpl->cb = gw_template;
4269 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
4270 	if (error)
4271 		goto done;
4272 
4273 	error = gw_parse_querystring(gw_trans);
4274 	if (error)
4275 		goto done;
4276 
4277 	if (gw_trans->action == GW_BLOB)
4278 		error = gw_blob(gw_trans);
4279 	else
4280 		error = gw_display_index(gw_trans);
4281 done:
4282 	if (gw_malloc) {
4283 		free(gw_trans->gw_conf->got_repos_path);
4284 		free(gw_trans->gw_conf->got_site_name);
4285 		free(gw_trans->gw_conf->got_site_owner);
4286 		free(gw_trans->gw_conf->got_site_link);
4287 		free(gw_trans->gw_conf->got_logo);
4288 		free(gw_trans->gw_conf->got_logo_url);
4289 		free(gw_trans->gw_conf);
4290 		free(gw_trans->commit_id);
4291 		free(gw_trans->repo_path);
4292 		if (gw_trans->repo)
4293 			got_repo_close(gw_trans->repo);
4294 
4295 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
4296 			free(dir->name);
4297 			free(dir->description);
4298 			free(dir->age);
4299 			free(dir->url);
4300 			free(dir->path);
4301 			free(dir);
4302 		}
4303 
4304 	}
4305 
4306 	khttp_free(gw_trans->gw_req);
4307 	return 0;
4308 }