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 <dirent.h>
23 #include <err.h>
24 #include <errno.h>
25 #include <regex.h>
26 #include <stdarg.h>
27 #include <stdint.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <unistd.h>
32 
33 #include <got_object.h>
34 #include <got_reference.h>
35 #include <got_repository.h>
36 #include <got_path.h>
37 #include <got_cancel.h>
38 #include <got_worktree.h>
39 #include <got_diff.h>
40 #include <got_commit_graph.h>
41 #include <got_blame.h>
42 #include <got_privsep.h>
43 #include <got_opentemp.h>
44 
45 #include <kcgi.h>
46 #include <kcgihtml.h>
47 
48 #include "buf.h"
49 #include "gotweb.h"
50 #include "gotweb_ui.h"
51 
52 #ifndef nitems
53 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
54 #endif
55 
56 struct gw_trans {
57 	TAILQ_HEAD(headers, gw_header)	 gw_headers;
58 	TAILQ_HEAD(dirs, gw_dir)	 gw_dirs;
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 	char			*repo_name;
65 	char			*repo_path;
66 	char			*commit;
67 	char			*repo_file;
68 	char			*repo_folder;
69 	char			*action_name;
70 	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_repository		*repo;
80 	struct got_reflist_head		 refs;
81 	struct got_commit_object	*commit;
82 	struct got_object_id		*id;
83 	char				*path;
84 
85 	char			*refs_str;
86 	char			*commit_id; /* id_str1 */
87 	char			*parent_id; /* id_str2 */
88 	char			*tree_id;
89 	char			*author;
90 	char			*committer;
91 	char			*commit_msg;
92 	time_t			 committer_time;
93 };
94 
95 struct gw_dir {
96 	TAILQ_ENTRY(gw_dir)	 entry;
97 	char			*name;
98 	char			*owner;
99 	char			*description;
100 	char			*url;
101 	char			*age;
102 	char			*path;
103 };
104 
105 enum gw_key {
106 	KEY_ACTION,
107 	KEY_COMMIT_ID,
108 	KEY_FILE,
109 	KEY_FOLDER,
110 	KEY_HEADREF,
111 	KEY_PAGE,
112 	KEY_PATH,
113 	KEY__ZMAX
114 };
115 
116 enum gw_tmpl {
117 	TEMPL_CONTENT,
118 	TEMPL_HEAD,
119 	TEMPL_HEADER,
120 	TEMPL_SEARCH,
121 	TEMPL_SITEPATH,
122 	TEMPL_SITEOWNER,
123 	TEMPL_TITLE,
124 	TEMPL__MAX
125 };
126 
127 enum gw_ref_tm {
128 	TM_DIFF,
129 	TM_LONG,
130 };
131 
132 enum gw_tags {
133 	TAGBRIEF,
134 	TAGFULL,
135 };
136 
137 static const char *const gw_templs[TEMPL__MAX] = {
138 	"content",
139 	"head",
140 	"header",
141 	"search",
142 	"sitepath",
143 	"siteowner",
144 	"title",
145 };
146 
147 static const struct kvalid gw_keys[KEY__ZMAX] = {
148 	{ kvalid_stringne,	"action" },
149 	{ kvalid_stringne,	"commit" },
150 	{ kvalid_stringne,	"file" },
151 	{ kvalid_stringne,	"folder" },
152 	{ kvalid_stringne,	"headref" },
153 	{ kvalid_int,		"page" },
154 	{ kvalid_stringne,	"path" },
155 };
156 
157 static struct gw_dir		*gw_init_gw_dir(char *);
158 static struct gw_header		*gw_init_header(void);
159 
160 static char			*gw_get_repo_description(struct gw_trans *,
161 				    char *);
162 static char			*gw_get_repo_owner(struct gw_trans *,
163 				    char *);
164 static char			*gw_get_time_str(time_t, int);
165 static const struct got_error	*gw_get_repo_age(char **, struct gw_trans *,
166 				    char *, char *, int);
167 static char			*gw_get_file_blame(struct gw_trans *);
168 static char			*gw_get_repo_tree(struct gw_trans *);
169 static char			*gw_get_diff(struct gw_trans *,
170 				    struct gw_header *);
171 static char			*gw_get_repo_tags(struct gw_trans *,
172 				    struct gw_header *, int, int);
173 static char			*gw_get_repo_heads(struct gw_trans *);
174 static char			*gw_get_clone_url(struct gw_trans *, char *);
175 static char			*gw_get_got_link(struct gw_trans *);
176 static char			*gw_get_site_link(struct gw_trans *);
177 static char			*gw_html_escape(const char *);
178 static char			*gw_colordiff_line(char *);
179 
180 static char			*gw_gen_commit_header(char *, char*);
181 static char			*gw_gen_diff_header(char *, char*);
182 static char			*gw_gen_author_header(char *);
183 static char			*gw_gen_committer_header(char *);
184 static char			*gw_gen_age_header(char *);
185 static char			*gw_gen_commit_msg_header(char *);
186 static char			*gw_gen_tree_header(char *);
187 
188 static void			 gw_free_headers(struct gw_header *);
189 static const struct got_error*	 gw_display_open(struct gw_trans *, enum khttp,
190 				    enum kmime);
191 static const struct got_error*	 gw_display_index(struct gw_trans *);
192 static void			 gw_display_error(struct gw_trans *,
193 				    const struct got_error *);
194 
195 static int			 gw_template(size_t, void *);
196 
197 static const struct got_error*	 gw_get_header(struct gw_trans *,
198 				    struct gw_header *, int);
199 static const struct got_error*	 gw_get_commits(struct gw_trans *,
200 				    struct gw_header *, int);
201 static const struct got_error*	 gw_get_commit(struct gw_trans *,
202 				    struct gw_header *);
203 static const struct got_error*	 gw_apply_unveil(const char *, const char *);
204 static const struct got_error*	 gw_blame_cb(void *, int, int,
205 				    struct got_object_id *);
206 static const struct got_error*	 gw_load_got_paths(struct gw_trans *);
207 static const struct got_error*	 gw_load_got_path(struct gw_trans *,
208 				    struct gw_dir *);
209 static const struct got_error*	 gw_parse_querystring(struct gw_trans *);
210 
211 static const struct got_error*	 gw_blame(struct gw_trans *);
212 static const struct got_error*	 gw_diff(struct gw_trans *);
213 static const struct got_error*	 gw_index(struct gw_trans *);
214 static const struct got_error*	 gw_commits(struct gw_trans *);
215 static const struct got_error*	 gw_briefs(struct gw_trans *);
216 static const struct got_error*	 gw_summary(struct gw_trans *);
217 static const struct got_error*	 gw_tree(struct gw_trans *);
218 static const struct got_error*	 gw_tag(struct gw_trans *);
219 
220 struct gw_query_action {
221 	unsigned int		 func_id;
222 	const char		*func_name;
223 	const struct got_error	*(*func_main)(struct gw_trans *);
224 	char			*template;
225 };
226 
227 enum gw_query_actions {
228 	GW_BLAME,
229 	GW_BRIEFS,
230 	GW_COMMITS,
231 	GW_DIFF,
232 	GW_ERR,
233 	GW_INDEX,
234 	GW_SUMMARY,
235 	GW_TAG,
236 	GW_TREE,
237 };
238 
239 static struct gw_query_action gw_query_funcs[] = {
240 	{ GW_BLAME,	"blame",	gw_blame,	"gw_tmpl/blame.tmpl" },
241 	{ GW_BRIEFS,	"briefs",	gw_briefs,	"gw_tmpl/briefs.tmpl" },
242 	{ GW_COMMITS,	"commits",	gw_commits,	"gw_tmpl/commit.tmpl" },
243 	{ GW_DIFF,	"diff",		gw_diff,	"gw_tmpl/diff.tmpl" },
244 	{ GW_ERR,	 NULL,		NULL,		"gw_tmpl/err.tmpl" },
245 	{ GW_INDEX,	"index",	gw_index,	"gw_tmpl/index.tmpl" },
246 	{ GW_SUMMARY,	"summary",	gw_summary,	"gw_tmpl/summry.tmpl" },
247 	{ GW_TAG,	"tag",		gw_tag,		"gw_tmpl/tag.tmpl" },
248 	{ GW_TREE,	"tree",		gw_tree,	"gw_tmpl/tree.tmpl" },
249 };
250 
251 static const struct got_error *
252 gw_kcgi_error(enum kcgi_err kerr)
253 {
254 	if (kerr == KCGI_OK)
255 		return NULL;
256 
257 	if (kerr == KCGI_EXIT || kerr == KCGI_HUP)
258 		return got_error(GOT_ERR_CANCELLED);
259 
260 	if (kerr == KCGI_ENOMEM)
261 		return got_error_set_errno(ENOMEM, kcgi_strerror(kerr));
262 
263 	if (kerr == KCGI_ENFILE)
264 		return got_error_set_errno(ENFILE, kcgi_strerror(kerr));
265 
266 	if (kerr == KCGI_EAGAIN)
267 		return got_error_set_errno(EAGAIN, kcgi_strerror(kerr));
268 
269 	if (kerr == KCGI_FORM)
270 		return got_error_msg(GOT_ERR_IO, kcgi_strerror(kerr));
271 
272 	return got_error_from_errno(kcgi_strerror(kerr));
273 }
274 
275 static const struct got_error *
276 gw_apply_unveil(const char *repo_path, const char *repo_file)
277 {
278 	const struct got_error *err;
279 
280 	if (repo_path && repo_file) {
281 		char *full_path;
282 		if (asprintf(&full_path, "%s/%s", repo_path, repo_file) == -1)
283 			return got_error_from_errno("asprintf unveil");
284 		if (unveil(full_path, "r") != 0)
285 			return got_error_from_errno2("unveil", full_path);
286 	}
287 
288 	if (repo_path && unveil(repo_path, "r") != 0)
289 		return got_error_from_errno2("unveil", repo_path);
290 
291 	if (unveil("/tmp", "rwc") != 0)
292 		return got_error_from_errno2("unveil", "/tmp");
293 
294 	err = got_privsep_unveil_exec_helpers();
295 	if (err != NULL)
296 		return err;
297 
298 	if (unveil(NULL, NULL) != 0)
299 		return got_error_from_errno("unveil");
300 
301 	return NULL;
302 }
303 
304 static const struct got_error *
305 gw_blame(struct gw_trans *gw_trans)
306 {
307 	const struct got_error *error = NULL;
308 	struct gw_header *header = NULL;
309 	char *blame = NULL, *blame_html = NULL, *blame_html_disp = NULL;
310 	enum kcgi_err kerr;
311 
312 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
313 	    NULL) == -1)
314 		return got_error_from_errno("pledge");
315 
316 	if ((header = gw_init_header()) == NULL)
317 		return got_error_from_errno("malloc");
318 
319 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
320 	if (error)
321 		goto done;
322 
323 	error = gw_get_header(gw_trans, header, 1);
324 	if (error)
325 		goto done;
326 
327 	blame_html = gw_get_file_blame(gw_trans);
328 
329 	if (blame_html == NULL) {
330 		blame_html = strdup("");
331 		if (blame_html == NULL) {
332 			error = got_error_from_errno("strdup");
333 			goto done;
334 		}
335 	}
336 
337 	if (asprintf(&blame_html_disp, blame_header,
338 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
339 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
340 	    blame_html) == -1) {
341 		error = got_error_from_errno("asprintf");
342 		goto done;
343 	}
344 
345 	if (asprintf(&blame, blame_wrapper, blame_html_disp) == -1) {
346 		error = got_error_from_errno("asprintf");
347 		goto done;
348 	}
349 
350 	kerr = khttp_puts(gw_trans->gw_req, blame);
351 	if (kerr != KCGI_OK)
352 		error = gw_kcgi_error(kerr);
353 done:
354 	got_ref_list_free(&header->refs);
355 	gw_free_headers(header);
356 	free(blame_html_disp);
357 	free(blame_html);
358 	free(blame);
359 	return error;
360 }
361 
362 static const struct got_error *
363 gw_diff(struct gw_trans *gw_trans)
364 {
365 	const struct got_error *error = NULL;
366 	struct gw_header *header = NULL;
367 	char *diff = NULL, *diff_html = NULL, *diff_html_disp = NULL;
368 	enum kcgi_err kerr;
369 
370 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
371 	    NULL) == -1)
372 		return got_error_from_errno("pledge");
373 
374 	if ((header = gw_init_header()) == NULL)
375 		return got_error_from_errno("malloc");
376 
377 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
378 	if (error)
379 		goto done;
380 
381 	error = gw_get_header(gw_trans, header, 1);
382 	if (error)
383 		goto done;
384 
385 	diff_html = gw_get_diff(gw_trans, header);
386 
387 	if (diff_html == NULL) {
388 		diff_html = strdup("");
389 		if (diff_html == NULL) {
390 			error = got_error_from_errno("strdup");
391 			goto done;
392 		}
393 	}
394 
395 	if (asprintf(&diff_html_disp, diff_header,
396 	    gw_gen_diff_header(header->parent_id, header->commit_id),
397 	    gw_gen_commit_header(header->commit_id, header->refs_str),
398 	    gw_gen_tree_header(header->tree_id),
399 	    gw_gen_author_header(header->author),
400 	    gw_gen_committer_header(header->committer),
401 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
402 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
403 	    diff_html) == -1) {
404 		error = got_error_from_errno("asprintf");
405 		goto done;
406 	}
407 
408 	if (asprintf(&diff, diff_wrapper, diff_html_disp) == -1) {
409 		error = got_error_from_errno("asprintf");
410 		goto done;
411 	}
412 
413 	kerr = khttp_puts(gw_trans->gw_req, diff);
414 	if (kerr != KCGI_OK)
415 		error = gw_kcgi_error(kerr);
416 done:
417 	got_ref_list_free(&header->refs);
418 	gw_free_headers(header);
419 	free(diff_html_disp);
420 	free(diff_html);
421 	free(diff);
422 	return error;
423 }
424 
425 static const struct got_error *
426 gw_index(struct gw_trans *gw_trans)
427 {
428 	const struct got_error *error = NULL;
429 	struct gw_dir *gw_dir = NULL;
430 	char *html, *navs, *next, *prev;
431 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
432 	enum kcgi_err kerr;
433 
434 	if (pledge("stdio rpath proc exec sendfd unveil",
435 	    NULL) == -1) {
436 		error = got_error_from_errno("pledge");
437 		return error;
438 	}
439 
440 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
441 	if (error)
442 		return error;
443 
444 	error = gw_load_got_paths(gw_trans);
445 	if (error)
446 		return error;
447 
448 	kerr = khttp_puts(gw_trans->gw_req, index_projects_header);
449 	if (kerr != KCGI_OK)
450 		return gw_kcgi_error(kerr);
451 
452 	if (TAILQ_EMPTY(&gw_trans->gw_dirs)) {
453 		if (asprintf(&html, index_projects_empty,
454 		    gw_trans->gw_conf->got_repos_path) == -1)
455 			return got_error_from_errno("asprintf");
456 		kerr = khttp_puts(gw_trans->gw_req, html);
457 		if (kerr != KCGI_OK)
458 			error = gw_kcgi_error(kerr);
459 		free(html);
460 		return error;
461 	}
462 
463 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
464 		dir_c++;
465 
466 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
467 		if (gw_trans->page > 0 && (gw_trans->page *
468 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
469 			prev_disp++;
470 			continue;
471 		}
472 
473 		prev_disp++;
474 
475 		if (error)
476 			return error;
477 		if(asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
478 		    gw_dir->name, gw_dir->name) == -1)
479 			return got_error_from_errno("asprintf");
480 
481 		if (asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
482 		    gw_dir->description, gw_dir->owner, gw_dir->age,
483 		    navs) == -1)
484 			return got_error_from_errno("asprintf");
485 
486 		kerr = khttp_puts(gw_trans->gw_req, html);
487 		free(navs);
488 		free(html);
489 		if (kerr != KCGI_OK)
490 			return gw_kcgi_error(kerr);
491 
492 		if (gw_trans->gw_conf->got_max_repos_display == 0)
493 			continue;
494 
495 		if (next_disp == gw_trans->gw_conf->got_max_repos_display) {
496 			kerr = khttp_puts(gw_trans->gw_req, np_wrapper_start);
497 			if (kerr != KCGI_OK)
498 				return gw_kcgi_error(kerr);
499 		} else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
500 		    (gw_trans->page > 0) &&
501 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
502 		    prev_disp == gw_trans->repos_total)) {
503 			kerr = khttp_puts(gw_trans->gw_req, np_wrapper_start);
504 			if (kerr != KCGI_OK)
505 				return gw_kcgi_error(kerr);
506 		}
507 
508 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
509 		    (gw_trans->page > 0) &&
510 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
511 		    prev_disp == gw_trans->repos_total)) {
512 			if (asprintf(&prev, nav_prev, gw_trans->page - 1) == -1)
513 				return got_error_from_errno("asprintf");
514 			kerr = khttp_puts(gw_trans->gw_req, prev);
515 			free(prev);
516 			if (kerr != KCGI_OK)
517 				return gw_kcgi_error(kerr);
518 		}
519 
520 		kerr = khttp_puts(gw_trans->gw_req, div_end);
521 		if (kerr != KCGI_OK)
522 			return gw_kcgi_error(kerr);
523 
524 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
525 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
526 		    dir_c != (gw_trans->page + 1) *
527 		    gw_trans->gw_conf->got_max_repos_display) {
528 			if (asprintf(&next, nav_next, gw_trans->page + 1) == -1)
529 				return got_error_from_errno("calloc");
530 			kerr = khttp_puts(gw_trans->gw_req, next);
531 			free(next);
532 			if (kerr != KCGI_OK)
533 				return gw_kcgi_error(kerr);
534 			kerr = khttp_puts(gw_trans->gw_req, div_end);
535 			if (kerr != KCGI_OK)
536 				error = gw_kcgi_error(kerr);
537 			next_disp = 0;
538 			break;
539 		}
540 
541 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
542 		    (gw_trans->page > 0) &&
543 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
544 		    prev_disp == gw_trans->repos_total)) {
545 			kerr = khttp_puts(gw_trans->gw_req, div_end);
546 			if (kerr != KCGI_OK)
547 				return gw_kcgi_error(kerr);
548 		}
549 
550 		next_disp++;
551 	}
552 	return error;
553 }
554 
555 static const struct got_error *
556 gw_commits(struct gw_trans *gw_trans)
557 {
558 	const struct got_error *error = NULL;
559 	char *commits_html, *commits_navs_html;
560 	struct gw_header *header = NULL, *n_header = NULL;
561 	enum kcgi_err kerr;
562 
563 	if ((header = gw_init_header()) == NULL)
564 		return got_error_from_errno("malloc");
565 
566 	if (pledge("stdio rpath proc exec sendfd unveil",
567 	    NULL) == -1) {
568 		error = got_error_from_errno("pledge");
569 		goto done;
570 	}
571 
572 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
573 	if (error)
574 		goto done;
575 
576 	error = gw_get_header(gw_trans, header,
577 	    gw_trans->gw_conf->got_max_commits_display);
578 	if (error)
579 		goto done;
580 
581 	kerr = khttp_puts(gw_trans->gw_req, commits_wrapper);
582 	if (kerr != KCGI_OK) {
583 		error = gw_kcgi_error(kerr);
584 		goto done;
585 	}
586 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
587 		if (asprintf(&commits_navs_html, commits_navs,
588 		    gw_trans->repo_name, n_header->commit_id,
589 		    gw_trans->repo_name, n_header->commit_id,
590 		    gw_trans->repo_name, n_header->commit_id) == -1) {
591 			error = got_error_from_errno("asprintf");
592 			goto done;
593 		}
594 
595 		if (asprintf(&commits_html, commits_line,
596 	    	    gw_gen_commit_header(n_header->commit_id,
597 		        n_header->refs_str),
598 	    	    gw_gen_author_header(n_header->author),
599 	    	    gw_gen_committer_header(n_header->committer),
600 		    gw_gen_age_header(gw_get_time_str(n_header->committer_time,
601 		        TM_LONG)), gw_html_escape(n_header->commit_msg),
602 		    commits_navs_html) == -1) {
603 			error = got_error_from_errno("asprintf");
604 			goto done;
605 		}
606 		kerr = khttp_puts(gw_trans->gw_req, commits_html);
607 		if (kerr != KCGI_OK) {
608 			error = gw_kcgi_error(kerr);
609 			goto done;
610 		}
611 	}
612 	kerr = khttp_puts(gw_trans->gw_req, div_end);
613 	if (kerr != KCGI_OK)
614 		error = gw_kcgi_error(kerr);
615 done:
616 	got_ref_list_free(&header->refs);
617 	gw_free_headers(header);
618 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
619 		gw_free_headers(n_header);
620 	return error;
621 }
622 
623 static const struct got_error *
624 gw_briefs(struct gw_trans *gw_trans)
625 {
626 	const struct got_error *error = NULL;
627 	char *briefs_html = NULL, *briefs_navs_html = NULL, *newline;
628 	struct gw_header *header = NULL, *n_header = NULL;
629 	enum kcgi_err kerr;
630 
631 	if ((header = gw_init_header()) == NULL)
632 		return got_error_from_errno("malloc");
633 
634 	if (pledge("stdio rpath proc exec sendfd unveil",
635 	    NULL) == -1) {
636 		error = got_error_from_errno("pledge");
637 		goto done;
638 	}
639 
640 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
641 	if (error)
642 		goto done;
643 
644 	if (gw_trans->action == GW_SUMMARY)
645 		error = gw_get_header(gw_trans, header, D_MAXSLCOMMDISP);
646 	else
647 		error = gw_get_header(gw_trans, header,
648 		    gw_trans->gw_conf->got_max_commits_display);
649 	if (error)
650 		goto done;
651 
652 	kerr = khttp_puts(gw_trans->gw_req, briefs_wrapper);
653 	if (kerr != KCGI_OK) {
654 		error = gw_kcgi_error(kerr);
655 		goto done;
656 	}
657 
658 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
659 		if (asprintf(&briefs_navs_html, briefs_navs,
660 		    gw_trans->repo_name, n_header->commit_id,
661 		    gw_trans->repo_name, n_header->commit_id,
662 		    gw_trans->repo_name, n_header->commit_id) == -1) {
663 			error = got_error_from_errno("asprintf");
664 			goto done;
665 		}
666 		newline = strchr(n_header->commit_msg, '\n');
667 		if (newline)
668 			*newline = '\0';
669 		if (asprintf(&briefs_html, briefs_line,
670 		    gw_get_time_str(n_header->committer_time, TM_DIFF),
671 		    n_header->author, gw_html_escape(n_header->commit_msg),
672 		    briefs_navs_html) == -1) {
673 			error = got_error_from_errno("asprintf");
674 			goto done;
675 		}
676 		kerr = khttp_puts(gw_trans->gw_req, briefs_html);
677 		if (kerr != KCGI_OK) {
678 			error = gw_kcgi_error(kerr);
679 			goto done;
680 		}
681 	}
682 	kerr = khttp_puts(gw_trans->gw_req, div_end);
683 	if (kerr != KCGI_OK)
684 		error = gw_kcgi_error(kerr);
685 done:
686 	got_ref_list_free(&header->refs);
687 	gw_free_headers(header);
688 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
689 		gw_free_headers(n_header);
690 	return error;
691 }
692 
693 static const struct got_error *
694 gw_summary(struct gw_trans *gw_trans)
695 {
696 	const struct got_error *error = NULL;
697 	char *description_html = NULL, *repo_owner_html = NULL;
698 	char *age = NULL, *repo_age_html = NULL, *cloneurl_html = NULL;
699 	char *tags = NULL, *tags_html = NULL;
700 	char *heads = NULL, *heads_html = NULL;
701 	enum kcgi_err kerr;
702 
703 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
704 		return got_error_from_errno("pledge");
705 
706 	/* unveil is applied with gw_briefs below */
707 
708 	kerr = khttp_puts(gw_trans->gw_req, summary_wrapper);
709 	if (kerr != KCGI_OK)
710 		return gw_kcgi_error(kerr);
711 
712 	if (gw_trans->gw_conf->got_show_repo_description) {
713 		if (gw_trans->gw_dir->description != NULL &&
714 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
715 			if (asprintf(&description_html, description,
716 			    gw_trans->gw_dir->description) == -1) {
717 				error = got_error_from_errno("asprintf");
718 				goto done;
719 			}
720 
721 			kerr = khttp_puts(gw_trans->gw_req, description_html);
722 			if (kerr != KCGI_OK) {
723 				error = gw_kcgi_error(kerr);
724 				goto done;
725 			}
726 		}
727 	}
728 
729 	if (gw_trans->gw_conf->got_show_repo_owner) {
730 		if (gw_trans->gw_dir->owner != NULL &&
731 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
732 			if (asprintf(&repo_owner_html, repo_owner,
733 			    gw_trans->gw_dir->owner) == -1) {
734 				error = got_error_from_errno("asprintf");
735 				goto done;
736 			}
737 
738 			kerr = khttp_puts(gw_trans->gw_req, repo_owner_html);
739 			if (kerr != KCGI_OK) {
740 				error = gw_kcgi_error(kerr);
741 				goto done;
742 			}
743 		}
744 	}
745 
746 	if (gw_trans->gw_conf->got_show_repo_age) {
747 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path,
748 		    "refs/heads", TM_LONG);
749 		if (error)
750 			goto done;
751 		if (strcmp(age, "") != 0) {
752 			if (asprintf(&repo_age_html, last_change, age) == -1) {
753 				error = got_error_from_errno("asprintf");
754 				goto done;
755 			}
756 
757 			kerr = khttp_puts(gw_trans->gw_req, repo_age_html);
758 			if (kerr != KCGI_OK) {
759 				error = gw_kcgi_error(kerr);
760 				goto done;
761 			}
762 		}
763 	}
764 
765 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
766 		if (gw_trans->gw_dir->url != NULL &&
767 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
768 			if (asprintf(&cloneurl_html, cloneurl,
769 			    gw_trans->gw_dir->url) == -1) {
770 				error = got_error_from_errno("asprintf");
771 				goto done;
772 			}
773 
774 			kerr = khttp_puts(gw_trans->gw_req, cloneurl_html);
775 			if (kerr != KCGI_OK) {
776 				error = gw_kcgi_error(kerr);
777 				goto done;
778 			}
779 		}
780 	}
781 	kerr = khttp_puts(gw_trans->gw_req, div_end);
782 	if (kerr != KCGI_OK) {
783 		error = gw_kcgi_error(kerr);
784 		goto done;
785 	}
786 
787 	error = gw_briefs(gw_trans);
788 	if (error)
789 		goto done;
790 
791 	tags = gw_get_repo_tags(gw_trans, NULL, D_MAXSLCOMMDISP, TAGBRIEF);
792 	heads = gw_get_repo_heads(gw_trans);
793 
794 	if (tags != NULL && strcmp(tags, "") != 0) {
795 		if (asprintf(&tags_html, summary_tags, tags) == -1) {
796 			error = got_error_from_errno("asprintf");
797 			goto done;
798 		}
799 		kerr = khttp_puts(gw_trans->gw_req, tags_html);
800 		if (kerr != KCGI_OK) {
801 			error = gw_kcgi_error(kerr);
802 			goto done;
803 		}
804 	}
805 
806 	if (heads != NULL && strcmp(heads, "") != 0) {
807 		if (asprintf(&heads_html, summary_heads, heads) == -1) {
808 			error = got_error_from_errno("asprintf");
809 			goto done;
810 		}
811 		kerr = khttp_puts(gw_trans->gw_req, heads_html);
812 		if (kerr != KCGI_OK) {
813 			error = gw_kcgi_error(kerr);
814 			goto done;
815 		}
816 	}
817 done:
818 	free(description_html);
819 	free(repo_owner_html);
820 	free(age);
821 	free(repo_age_html);
822 	free(cloneurl_html);
823 	free(tags);
824 	free(tags_html);
825 	free(heads);
826 	free(heads_html);
827 	return error;
828 }
829 
830 static const struct got_error *
831 gw_tree(struct gw_trans *gw_trans)
832 {
833 	const struct got_error *error = NULL;
834 	struct gw_header *header = NULL;
835 	char *tree = NULL, *tree_html = NULL, *tree_html_disp = NULL;
836 	enum kcgi_err kerr;
837 
838 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
839 		return got_error_from_errno("pledge");
840 
841 	if ((header = gw_init_header()) == NULL)
842 		return got_error_from_errno("malloc");
843 
844 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
845 	if (error)
846 		goto done;
847 
848 	error = gw_get_header(gw_trans, header, 1);
849 	if (error)
850 		goto done;
851 
852 	tree_html = gw_get_repo_tree(gw_trans);
853 
854 	if (tree_html == NULL) {
855 		tree_html = strdup("");
856 		if (tree_html == NULL) {
857 			error = got_error_from_errno("strdup");
858 			goto done;
859 		}
860 	}
861 
862 	if (asprintf(&tree_html_disp, tree_header,
863 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
864 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
865 	    tree_html) == -1) {
866 		error = got_error_from_errno("asprintf");
867 		goto done;
868 	}
869 
870 	if (asprintf(&tree, tree_wrapper, tree_html_disp) == -1) {
871 		error = got_error_from_errno("asprintf");
872 		goto done;
873 	}
874 
875 	kerr = khttp_puts(gw_trans->gw_req, tree);
876 	if (kerr != KCGI_OK)
877 		error = gw_kcgi_error(kerr);
878 done:
879 	got_ref_list_free(&header->refs);
880 	gw_free_headers(header);
881 	free(tree_html_disp);
882 	free(tree_html);
883 	free(tree);
884 	return error;
885 }
886 
887 static const struct got_error *
888 gw_tag(struct gw_trans *gw_trans)
889 {
890 	const struct got_error *error = NULL;
891 	struct gw_header *header = NULL;
892 	char *tag = NULL, *tag_html = NULL, *tag_html_disp = NULL;
893 	enum kcgi_err kerr;
894 
895 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
896 		return got_error_from_errno("pledge");
897 
898 	if ((header = gw_init_header()) == NULL)
899 		return got_error_from_errno("malloc");
900 
901 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
902 	if (error)
903 		goto done;
904 
905 	error = gw_get_header(gw_trans, header, 1);
906 	if (error)
907 		goto done;
908 
909 	tag_html = gw_get_repo_tags(gw_trans, header, 1, TAGFULL);
910 	if (tag_html == NULL) {
911 		tag_html = strdup("");
912 		if (tag_html == NULL) {
913 			error = got_error_from_errno("strdup");
914 			goto done;
915 		}
916 	}
917 
918 	if (asprintf(&tag_html_disp, tag_header,
919 	    gw_gen_commit_header(header->commit_id, header->refs_str),
920 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
921 	    tag_html) == -1) {
922 		error = got_error_from_errno("asprintf");
923 		goto done;
924 	}
925 
926 	if (asprintf(&tag, tag_wrapper, tag_html_disp) == -1) {
927 		error = got_error_from_errno("asprintf");
928 		goto done;
929 	}
930 
931 	kerr = khttp_puts(gw_trans->gw_req, tag);
932 	if (kerr != KCGI_OK)
933 		error = gw_kcgi_error(kerr);
934 done:
935 	got_ref_list_free(&header->refs);
936 	gw_free_headers(header);
937 	free(tag_html_disp);
938 	free(tag_html);
939 	free(tag);
940 	return error;
941 }
942 
943 static const struct got_error *
944 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
945 {
946 	const struct got_error *error = NULL;
947 	DIR *dt;
948 	char *dir_test;
949 	int opened = 0;
950 
951 	if (asprintf(&dir_test, "%s/%s/%s",
952 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
953 	    GOTWEB_GIT_DIR) == -1)
954 		return got_error_from_errno("asprintf");
955 
956 	dt = opendir(dir_test);
957 	if (dt == NULL) {
958 		free(dir_test);
959 	} else {
960 		gw_dir->path = strdup(dir_test);
961 		opened = 1;
962 		goto done;
963 	}
964 
965 	if (asprintf(&dir_test, "%s/%s/%s",
966 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
967 	    GOTWEB_GOT_DIR) == -1)
968 		return got_error_from_errno("asprintf");
969 
970 	dt = opendir(dir_test);
971 	if (dt == NULL)
972 		free(dir_test);
973 	else {
974 		opened = 1;
975 		error = got_error(GOT_ERR_NOT_GIT_REPO);
976 		goto errored;
977 	}
978 
979 	if (asprintf(&dir_test, "%s/%s",
980 	    gw_trans->gw_conf->got_repos_path, gw_dir->name) == -1)
981 		return got_error_from_errno("asprintf");
982 
983 	gw_dir->path = strdup(dir_test);
984 
985 done:
986 	gw_dir->description = gw_get_repo_description(gw_trans,
987 	    gw_dir->path);
988 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
989 	error = gw_get_repo_age(&gw_dir->age, gw_trans, gw_dir->path,
990 	    "refs/heads", TM_DIFF);
991 	if (error)
992 		goto errored;
993 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
994 
995 errored:
996 	free(dir_test);
997 	if (opened)
998 		closedir(dt);
999 	return error;
1000 }
1001 
1002 static const struct got_error *
1003 gw_load_got_paths(struct gw_trans *gw_trans)
1004 {
1005 	const struct got_error *error = NULL;
1006 	DIR *d;
1007 	struct dirent **sd_dent;
1008 	struct gw_dir *gw_dir;
1009 	struct stat st;
1010 	unsigned int d_cnt, d_i;
1011 
1012 	d = opendir(gw_trans->gw_conf->got_repos_path);
1013 	if (d == NULL) {
1014 		error = got_error_from_errno2("opendir",
1015 		    gw_trans->gw_conf->got_repos_path);
1016 		return error;
1017 	}
1018 
1019 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
1020 	    alphasort);
1021 	if (d_cnt == -1) {
1022 		error = got_error_from_errno2("scandir",
1023 		    gw_trans->gw_conf->got_repos_path);
1024 		return error;
1025 	}
1026 
1027 	for (d_i = 0; d_i < d_cnt; d_i++) {
1028 		if (gw_trans->gw_conf->got_max_repos > 0 &&
1029 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
1030 			break; /* account for parent and self */
1031 
1032 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
1033 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
1034 			continue;
1035 
1036 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
1037 			return got_error_from_errno("gw_dir malloc");
1038 
1039 		error = gw_load_got_path(gw_trans, gw_dir);
1040 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
1041 			continue;
1042 		else if (error)
1043 			return error;
1044 
1045 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
1046 		    !got_path_dir_is_empty(gw_dir->path)) {
1047 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
1048 			    entry);
1049 			gw_trans->repos_total++;
1050 		}
1051 	}
1052 
1053 	closedir(d);
1054 	return error;
1055 }
1056 
1057 static const struct got_error *
1058 gw_parse_querystring(struct gw_trans *gw_trans)
1059 {
1060 	const struct got_error *error = NULL;
1061 	struct kpair *p;
1062 	struct gw_query_action *action = NULL;
1063 	unsigned int i;
1064 
1065 	if (gw_trans->gw_req->fieldnmap[0]) {
1066 		error = got_error_from_errno("bad parse");
1067 		return error;
1068 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
1069 		/* define gw_trans->repo_path */
1070 		if (asprintf(&gw_trans->repo_name, "%s", p->parsed.s) == -1)
1071 			return got_error_from_errno("asprintf");
1072 
1073 		if (asprintf(&gw_trans->repo_path, "%s/%s",
1074 		    gw_trans->gw_conf->got_repos_path, p->parsed.s) == -1)
1075 			return got_error_from_errno("asprintf");
1076 
1077 		/* get action and set function */
1078 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
1079 			for (i = 0; i < nitems(gw_query_funcs); i++) {
1080 				action = &gw_query_funcs[i];
1081 				if (action->func_name == NULL)
1082 					continue;
1083 
1084 				if (strcmp(action->func_name,
1085 				    p->parsed.s) == 0) {
1086 					gw_trans->action = i;
1087 					if (asprintf(&gw_trans->action_name,
1088 					    "%s", action->func_name) == -1)
1089 						return
1090 						    got_error_from_errno(
1091 						    "asprintf");
1092 
1093 					break;
1094 				}
1095 
1096 				action = NULL;
1097 			}
1098 
1099  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
1100 			if (asprintf(&gw_trans->commit, "%s",
1101 			    p->parsed.s) == -1)
1102 				return got_error_from_errno("asprintf");
1103 
1104 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
1105 			if (asprintf(&gw_trans->repo_file, "%s",
1106 			    p->parsed.s) == -1)
1107 				return got_error_from_errno("asprintf");
1108 
1109 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER]))
1110 			if (asprintf(&gw_trans->repo_folder, "%s",
1111 			    p->parsed.s) == -1)
1112 				return got_error_from_errno("asprintf");
1113 
1114 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
1115 			if (asprintf(&gw_trans->headref, "%s",
1116 			    p->parsed.s) == -1)
1117 				return got_error_from_errno("asprintf");
1118 
1119 		if (action == NULL) {
1120 			error = got_error_from_errno("invalid action");
1121 			return error;
1122 		}
1123 		if ((gw_trans->gw_dir =
1124 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
1125 			return got_error_from_errno("gw_dir malloc");
1126 
1127 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
1128 		if (error)
1129 			return error;
1130 	} else
1131 		gw_trans->action = GW_INDEX;
1132 
1133 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
1134 		gw_trans->page = p->parsed.i;
1135 
1136 	/* if (gw_trans->action == GW_RAW) */
1137 	/* 	gw_trans->mime = KMIME_TEXT_PLAIN; */
1138 
1139 	return error;
1140 }
1141 
1142 static struct gw_dir *
1143 gw_init_gw_dir(char *dir)
1144 {
1145 	struct gw_dir *gw_dir;
1146 
1147 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
1148 		return NULL;
1149 
1150 	if (asprintf(&gw_dir->name, "%s", dir) == -1)
1151 		return NULL;
1152 
1153 	return gw_dir;
1154 }
1155 
1156 static const struct got_error *
1157 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
1158 {
1159 	enum kcgi_err kerr;
1160 
1161 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1162 	if (kerr != KCGI_OK)
1163 		return gw_kcgi_error(kerr);
1164 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1165 	    khttps[code]);
1166 	if (kerr != KCGI_OK)
1167 		return gw_kcgi_error(kerr);
1168 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1169 	    kmimetypes[mime]);
1170 	if (kerr != KCGI_OK)
1171 		return gw_kcgi_error(kerr);
1172 	kerr = khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
1173 	if (kerr != KCGI_OK)
1174 		return gw_kcgi_error(kerr);
1175 	kerr = khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1176 	if (kerr != KCGI_OK)
1177 		return gw_kcgi_error(kerr);
1178 	kerr = khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
1179 	if (kerr != KCGI_OK)
1180 		return gw_kcgi_error(kerr);
1181 
1182 	kerr = khttp_body(gw_trans->gw_req);
1183 	return gw_kcgi_error(kerr);
1184 }
1185 
1186 static const struct got_error *
1187 gw_display_index(struct gw_trans *gw_trans)
1188 {
1189 	const struct got_error *error;
1190 	enum kcgi_err kerr;
1191 
1192 	error = gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1193 	if (error)
1194 		return error;
1195 
1196 	kerr = khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1197 	if (kerr)
1198 		return gw_kcgi_error(kerr);
1199 
1200 	kerr = khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1201 	    gw_query_funcs[gw_trans->action].template);
1202 	if (kerr != KCGI_OK) {
1203 		khtml_close(gw_trans->gw_html_req);
1204 		return gw_kcgi_error(kerr);
1205 	}
1206 
1207 	return gw_kcgi_error(khtml_close(gw_trans->gw_html_req));
1208 }
1209 
1210 static void
1211 gw_display_error(struct gw_trans *gw_trans, const struct got_error *err)
1212 {
1213 	if (gw_display_open(gw_trans, KHTTP_200, gw_trans->mime) != NULL)
1214 		return;
1215 
1216 	if (khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0) != KCGI_OK)
1217 		return;
1218 
1219 	khttp_puts(gw_trans->gw_req, err->msg);
1220 	khtml_close(gw_trans->gw_html_req);
1221 }
1222 
1223 static int
1224 gw_template(size_t key, void *arg)
1225 {
1226 	const struct got_error *error = NULL;
1227 	struct gw_trans *gw_trans = arg;
1228 	char *gw_got_link, *gw_site_link;
1229 	char *site_owner_name, *site_owner_name_h;
1230 
1231 	switch (key) {
1232 	case (TEMPL_HEAD):
1233 		khttp_puts(gw_trans->gw_req, head);
1234 		break;
1235 	case(TEMPL_HEADER):
1236 		gw_got_link = gw_get_got_link(gw_trans);
1237 		if (gw_got_link != NULL)
1238 			khttp_puts(gw_trans->gw_req, gw_got_link);
1239 
1240 		free(gw_got_link);
1241 		break;
1242 	case (TEMPL_SITEPATH):
1243 		gw_site_link = gw_get_site_link(gw_trans);
1244 		if (gw_site_link != NULL)
1245 			khttp_puts(gw_trans->gw_req, gw_site_link);
1246 
1247 		free(gw_site_link);
1248 		break;
1249 	case(TEMPL_TITLE):
1250 		if (gw_trans->gw_conf->got_site_name != NULL)
1251 			khtml_puts(gw_trans->gw_html_req,
1252 			    gw_trans->gw_conf->got_site_name);
1253 
1254 		break;
1255 	case (TEMPL_SEARCH):
1256 		khttp_puts(gw_trans->gw_req, search);
1257 		break;
1258 	case(TEMPL_SITEOWNER):
1259 		if (gw_trans->gw_conf->got_site_owner != NULL &&
1260 		    gw_trans->gw_conf->got_show_site_owner) {
1261 			site_owner_name =
1262 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
1263 			if (asprintf(&site_owner_name_h, site_owner,
1264 			    site_owner_name) == -1)
1265 				return 0;
1266 
1267 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
1268 			free(site_owner_name);
1269 			free(site_owner_name_h);
1270 		}
1271 		break;
1272 	case(TEMPL_CONTENT):
1273 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1274 		if (error)
1275 			khttp_puts(gw_trans->gw_req, error->msg);
1276 		break;
1277 	default:
1278 		return 0;
1279 	}
1280 	return 1;
1281 }
1282 
1283 static char *
1284 gw_gen_commit_header(char *str1, char *str2)
1285 {
1286 	char *return_html = NULL, *ref_str = NULL;
1287 
1288 	if (strcmp(str2, "") != 0) {
1289 		if (asprintf(&ref_str, "(%s)", str2) == -1) {
1290 			return_html = strdup("");
1291 			return return_html;
1292 		}
1293 	} else
1294 		ref_str = strdup("");
1295 
1296 
1297 	if (asprintf(&return_html, header_commit_html, str1, ref_str) == -1)
1298 		return_html = strdup("");
1299 
1300 	free(ref_str);
1301 	return return_html;
1302 }
1303 
1304 static char *
1305 gw_gen_diff_header(char *str1, char *str2)
1306 {
1307 	char *return_html = NULL;
1308 
1309 	if (asprintf(&return_html, header_diff_html, str1, str2) == -1)
1310 		return_html = strdup("");
1311 
1312 	return return_html;
1313 }
1314 
1315 static char *
1316 gw_gen_author_header(char *str)
1317 {
1318 	char *return_html = NULL;
1319 
1320 	if (asprintf(&return_html, header_author_html, str) == -1)
1321 		return_html = strdup("");
1322 
1323 	return return_html;
1324 }
1325 
1326 static char *
1327 gw_gen_committer_header(char *str)
1328 {
1329 	char *return_html = NULL;
1330 
1331 	if (asprintf(&return_html, header_committer_html, str) == -1)
1332 		return_html = strdup("");
1333 
1334 	return return_html;
1335 }
1336 
1337 static char *
1338 gw_gen_age_header(char *str)
1339 {
1340 	char *return_html = NULL;
1341 
1342 	if (asprintf(&return_html, header_age_html, str) == -1)
1343 		return_html = strdup("");
1344 
1345 	return return_html;
1346 }
1347 
1348 static char *
1349 gw_gen_commit_msg_header(char *str)
1350 {
1351 	char *return_html = NULL;
1352 
1353 	if (asprintf(&return_html, header_commit_msg_html, str) == -1)
1354 		return_html = strdup("");
1355 
1356 	return return_html;
1357 }
1358 
1359 static char *
1360 gw_gen_tree_header(char *str)
1361 {
1362 	char *return_html = NULL;
1363 
1364 	if (asprintf(&return_html, header_tree_html, str) == -1)
1365 		return_html = strdup("");
1366 
1367 	return return_html;
1368 }
1369 
1370 static char *
1371 gw_get_repo_description(struct gw_trans *gw_trans, char *dir)
1372 {
1373 	FILE *f;
1374 	char *description = NULL, *d_file = NULL;
1375 	unsigned int len;
1376 
1377 	if (gw_trans->gw_conf->got_show_repo_description == 0)
1378 		goto err;
1379 
1380 	if (asprintf(&d_file, "%s/description", dir) == -1)
1381 		goto err;
1382 
1383 	if ((f = fopen(d_file, "r")) == NULL)
1384 		goto err;
1385 
1386 	fseek(f, 0, SEEK_END);
1387 	len = ftell(f) + 1;
1388 	fseek(f, 0, SEEK_SET);
1389 	if ((description = calloc(len, sizeof(char *))) == NULL)
1390 		goto err;
1391 
1392 	fread(description, 1, len, f);
1393 	fclose(f);
1394 	free(d_file);
1395 	return description;
1396 err:
1397 	return strdup("");
1398 }
1399 
1400 static char *
1401 gw_get_time_str(time_t committer_time, int ref_tm)
1402 {
1403 	struct tm tm;
1404 	time_t diff_time;
1405 	char *years = "years ago", *months = "months ago";
1406 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1407 	char *minutes = "minutes ago", *seconds = "seconds ago";
1408 	char *now = "right now";
1409 	char *repo_age, *s;
1410 	char datebuf[29];
1411 
1412 	switch (ref_tm) {
1413 	case TM_DIFF:
1414 		diff_time = time(NULL) - committer_time;
1415 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1416 			if (asprintf(&repo_age, "%lld %s",
1417 			    (diff_time / 60 / 60 / 24 / 365), years) == -1)
1418 				return NULL;
1419 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1420 			if (asprintf(&repo_age, "%lld %s",
1421 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1422 			    months) == -1)
1423 				return NULL;
1424 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1425 			if (asprintf(&repo_age, "%lld %s",
1426 			    (diff_time / 60 / 60 / 24 / 7), weeks) == -1)
1427 				return NULL;
1428 		} else if (diff_time > 60 * 60 * 24 * 2) {
1429 			if (asprintf(&repo_age, "%lld %s",
1430 			    (diff_time / 60 / 60 / 24), days) == -1)
1431 				return NULL;
1432 		} else if (diff_time > 60 * 60 * 2) {
1433 			if (asprintf(&repo_age, "%lld %s",
1434 			    (diff_time / 60 / 60), hours) == -1)
1435 				return NULL;
1436 		} else if (diff_time > 60 * 2) {
1437 			if (asprintf(&repo_age, "%lld %s", (diff_time / 60),
1438 			    minutes) == -1)
1439 				return NULL;
1440 		} else if (diff_time > 2) {
1441 			if (asprintf(&repo_age, "%lld %s", diff_time,
1442 			    seconds) == -1)
1443 				return NULL;
1444 		} else {
1445 			if (asprintf(&repo_age, "%s", now) == -1)
1446 				return NULL;
1447 		}
1448 		break;
1449 	case TM_LONG:
1450 		if (gmtime_r(&committer_time, &tm) == NULL)
1451 			return NULL;
1452 
1453 		s = asctime_r(&tm, datebuf);
1454 		if (s == NULL)
1455 			return NULL;
1456 
1457 		if (asprintf(&repo_age, "%s UTC", datebuf) == -1)
1458 			return NULL;
1459 		break;
1460 	}
1461 	return repo_age;
1462 }
1463 
1464 static const struct got_error *
1465 gw_get_repo_age(char **repo_age, struct gw_trans *gw_trans, char *dir,
1466     char *repo_ref, int ref_tm)
1467 {
1468 	const struct got_error *error = NULL;
1469 	struct got_object_id *id = NULL;
1470 	struct got_repository *repo = NULL;
1471 	struct got_commit_object *commit = NULL;
1472 	struct got_reflist_head refs;
1473 	struct got_reflist_entry *re;
1474 	struct got_reference *head_ref;
1475 	int is_head = 0;
1476 	time_t committer_time = 0, cmp_time = 0;
1477 	const char *refname;
1478 
1479 	*repo_age = NULL;
1480 	SIMPLEQ_INIT(&refs);
1481 
1482 	if (repo_ref == NULL)
1483 		return NULL;
1484 
1485 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1486 		is_head = 1;
1487 
1488 	if (gw_trans->gw_conf->got_show_repo_age == 0) {
1489 		*repo_age = strdup("");
1490 		if (*repo_age == NULL)
1491 			return got_error_from_errno("strdup");
1492 		return NULL;
1493 	}
1494 
1495 	error = got_repo_open(&repo, dir, NULL);
1496 	if (error)
1497 		goto done;
1498 
1499 	if (is_head)
1500 		error = got_ref_list(&refs, repo, "refs/heads",
1501 		    got_ref_cmp_by_name, NULL);
1502 	else
1503 		error = got_ref_list(&refs, repo, repo_ref,
1504 		    got_ref_cmp_by_name, NULL);
1505 	if (error)
1506 		goto done;
1507 
1508 	SIMPLEQ_FOREACH(re, &refs, entry) {
1509 		if (is_head)
1510 			refname = strdup(repo_ref);
1511 		else
1512 			refname = got_ref_get_name(re->ref);
1513 		error = got_ref_open(&head_ref, repo, refname, 0);
1514 		if (error)
1515 			goto done;
1516 
1517 		error = got_ref_resolve(&id, repo, head_ref);
1518 		got_ref_close(head_ref);
1519 		if (error)
1520 			goto done;
1521 
1522 		error = got_object_open_as_commit(&commit, repo, id);
1523 		if (error)
1524 			goto done;
1525 
1526 		committer_time =
1527 		    got_object_commit_get_committer_time(commit);
1528 
1529 		if (cmp_time < committer_time)
1530 			cmp_time = committer_time;
1531 	}
1532 
1533 	if (cmp_time != 0) {
1534 		committer_time = cmp_time;
1535 		*repo_age = gw_get_time_str(committer_time, ref_tm);
1536 	} else {
1537 		*repo_age = strdup("");
1538 		if (*repo_age == NULL)
1539 			error = got_error_from_errno("strdup");
1540 	}
1541 done:
1542 	got_ref_list_free(&refs);
1543 	free(id);
1544 	return error;
1545 }
1546 
1547 static char *
1548 gw_get_diff(struct gw_trans *gw_trans, struct gw_header *header)
1549 {
1550 	const struct got_error *error;
1551 	FILE *f = NULL;
1552 	struct got_object_id *id1 = NULL, *id2 = NULL;
1553 	struct buf *diffbuf = NULL;
1554 	char *label1 = NULL, *label2 = NULL, *diff_html = NULL, *buf = NULL,
1555 	     *buf_color = NULL, *n_buf = NULL, *newline = NULL;
1556 	int obj_type;
1557 	size_t newsize;
1558 
1559 	f = got_opentemp();
1560 	if (f == NULL)
1561 		return NULL;
1562 
1563 	error = buf_alloc(&diffbuf, 0);
1564 	if (error)
1565 		return NULL;
1566 
1567 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
1568 	if (error)
1569 		goto done;
1570 
1571 	if (strncmp(header->parent_id, "/dev/null", 9) != 0) {
1572 		error = got_repo_match_object_id(&id1, &label1,
1573 			header->parent_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1574 		if (error)
1575 			goto done;
1576 	}
1577 
1578 	error = got_repo_match_object_id(&id2, &label2,
1579 	    header->commit_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1580 	if (error)
1581 		goto done;
1582 
1583 	error = got_object_get_type(&obj_type, header->repo, id2);
1584 	if (error)
1585 		goto done;
1586 	switch (obj_type) {
1587 	case GOT_OBJ_TYPE_BLOB:
1588 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL, 3, 0,
1589 		    header->repo, f);
1590 		break;
1591 	case GOT_OBJ_TYPE_TREE:
1592 		error = got_diff_objects_as_trees(id1, id2, "", "", 3, 0,
1593 		    header->repo, f);
1594 		break;
1595 	case GOT_OBJ_TYPE_COMMIT:
1596 		error = got_diff_objects_as_commits(id1, id2, 3, 0,
1597 		    header->repo, f);
1598 		break;
1599 	default:
1600 		error = got_error(GOT_ERR_OBJ_TYPE);
1601 	}
1602 
1603 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1604 		goto done;
1605 
1606 	fseek(f, 0, SEEK_SET);
1607 
1608 	while ((fgets(buf, 2048, f)) != NULL) {
1609 		n_buf = buf;
1610 		while (*n_buf == '\n')
1611 			n_buf++;
1612 		newline = strchr(n_buf, '\n');
1613 		if (newline)
1614 			*newline = ' ';
1615 
1616 		buf_color = gw_colordiff_line(gw_html_escape(n_buf));
1617 		if (buf_color == NULL)
1618 			continue;
1619 
1620 		error = buf_puts(&newsize, diffbuf, buf_color);
1621 		if (error)
1622 			return NULL;
1623 
1624 		error = buf_puts(&newsize, diffbuf, div_end);
1625 		if (error)
1626 			return NULL;
1627 	}
1628 
1629 	if (buf_len(diffbuf) > 0) {
1630 		error = buf_putc(diffbuf, '\0');
1631 		diff_html = strdup(buf_get(diffbuf));
1632 	}
1633 done:
1634 	fclose(f);
1635 	free(buf_color);
1636 	free(buf);
1637 	free(diffbuf);
1638 	free(label1);
1639 	free(label2);
1640 	free(id1);
1641 	free(id2);
1642 
1643 	if (error)
1644 		return NULL;
1645 	else
1646 		return diff_html;
1647 }
1648 
1649 static char *
1650 gw_get_repo_owner(struct gw_trans *gw_trans, char *dir)
1651 {
1652 	FILE *f;
1653 	char *owner = NULL, *d_file = NULL;
1654 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1655 	char *comp, *pos, *buf;
1656 	unsigned int i;
1657 
1658 	if (gw_trans->gw_conf->got_show_repo_owner == 0)
1659 		goto err;
1660 
1661 	if (asprintf(&d_file, "%s/config", dir) == -1)
1662 		goto err;
1663 
1664 	if ((f = fopen(d_file, "r")) == NULL)
1665 		goto err;
1666 
1667 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1668 		goto err;
1669 
1670 	while ((fgets(buf, 128, f)) != NULL) {
1671 		if ((pos = strstr(buf, gotweb)) != NULL)
1672 			break;
1673 
1674 		if ((pos = strstr(buf, gitweb)) != NULL)
1675 			break;
1676 	}
1677 
1678 	if (pos == NULL)
1679 		goto err;
1680 
1681 	do {
1682 		fgets(buf, 128, f);
1683 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1684 
1685 	if (comp == NULL)
1686 		goto err;
1687 
1688 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1689 		goto err;
1690 
1691 	for (i = 0; i < 2; i++) {
1692 		owner = strsep(&buf, "\"");
1693 	}
1694 
1695 	if (owner == NULL)
1696 		goto err;
1697 
1698 	fclose(f);
1699 	free(d_file);
1700 	return owner;
1701 err:
1702 	return strdup("");
1703 }
1704 
1705 static char *
1706 gw_get_clone_url(struct gw_trans *gw_trans, char *dir)
1707 {
1708 	FILE *f;
1709 	char *url = NULL, *d_file = NULL;
1710 	unsigned int len;
1711 
1712 	if (asprintf(&d_file, "%s/cloneurl", dir) == -1)
1713 		return NULL;
1714 
1715 	if ((f = fopen(d_file, "r")) == NULL)
1716 		return NULL;
1717 
1718 	fseek(f, 0, SEEK_END);
1719 	len = ftell(f) + 1;
1720 	fseek(f, 0, SEEK_SET);
1721 
1722 	if ((url = calloc(len, sizeof(char *))) == NULL)
1723 		return NULL;
1724 
1725 	fread(url, 1, len, f);
1726 	fclose(f);
1727 	free(d_file);
1728 	return url;
1729 }
1730 
1731 static char *
1732 gw_get_repo_tags(struct gw_trans *gw_trans, struct gw_header *header, int limit,
1733     int tag_type)
1734 {
1735 	const struct got_error *error = NULL;
1736 	struct got_repository *repo = NULL;
1737 	struct got_reflist_head refs;
1738 	struct got_reflist_entry *re;
1739 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL,
1740 	     *age = NULL;
1741 	char *newline;
1742 	struct buf *diffbuf = NULL;
1743 	size_t newsize;
1744 
1745 	SIMPLEQ_INIT(&refs);
1746 
1747 	error = buf_alloc(&diffbuf, 0);
1748 	if (error)
1749 		return NULL;
1750 
1751 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1752 	if (error)
1753 		goto done;
1754 
1755 	error = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_tags, repo);
1756 	if (error)
1757 		goto done;
1758 
1759 	SIMPLEQ_FOREACH(re, &refs, entry) {
1760 		const char *refname;
1761 		char *refstr, *tag_commit0, *tag_commit, *id_str;
1762 		const char *tagger;
1763 		time_t tagger_time;
1764 		struct got_object_id *id;
1765 		struct got_tag_object *tag;
1766 
1767 		refname = got_ref_get_name(re->ref);
1768 		if (strncmp(refname, "refs/tags/", 10) != 0)
1769 			continue;
1770 		refname += 10;
1771 		refstr = got_ref_to_str(re->ref);
1772 		if (refstr == NULL) {
1773 			error = got_error_from_errno("got_ref_to_str");
1774 			goto done;
1775 		}
1776 
1777 		error = got_ref_resolve(&id, repo, re->ref);
1778 		if (error)
1779 			goto done;
1780 		error = got_object_open_as_tag(&tag, repo, id);
1781 		free(id);
1782 		if (error)
1783 			goto done;
1784 
1785 		tagger = got_object_tag_get_tagger(tag);
1786 		tagger_time = got_object_tag_get_tagger_time(tag);
1787 
1788 		error = got_object_id_str(&id_str,
1789 		    got_object_tag_get_object_id(tag));
1790 		if (error)
1791 			goto done;
1792 
1793 		tag_commit0 = strdup(got_object_tag_get_message(tag));
1794 
1795 		if (tag_commit0 == NULL) {
1796 			error = got_error_from_errno("strdup");
1797 			goto done;
1798 		}
1799 
1800 		tag_commit = tag_commit0;
1801 		while (*tag_commit == '\n')
1802 			tag_commit++;
1803 
1804 		switch (tag_type) {
1805 		case TAGBRIEF:
1806 			newline = strchr(tag_commit, '\n');
1807 			if (newline)
1808 				*newline = '\0';
1809 
1810 			if (asprintf(&age, "%s", gw_get_time_str(tagger_time,
1811 			    TM_DIFF)) == -1) {
1812 				error = got_error_from_errno("asprintf");
1813 				goto done;
1814 			}
1815 
1816 			if (asprintf(&tags_navs_disp, tags_navs,
1817 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
1818 			    id_str, gw_trans->repo_name, id_str,
1819 			    gw_trans->repo_name, id_str) == -1) {
1820 				error = got_error_from_errno("asprintf");
1821 				goto done;
1822 			}
1823 
1824 			if (asprintf(&tag_row, tags_row, age, refname,
1825 			    tag_commit, tags_navs_disp) == -1) {
1826 				error = got_error_from_errno("asprintf");
1827 				goto done;
1828 			}
1829 
1830 			free(tags_navs_disp);
1831 			break;
1832 		case TAGFULL:
1833 			if (asprintf(&age, "%s", gw_get_time_str(tagger_time,
1834 			    TM_LONG)) == -1) {
1835 				error = got_error_from_errno("asprintf");
1836 				goto done;
1837 			}
1838 			if (asprintf(&tag_row, tag_info, age,
1839 			    gw_html_escape(tagger),
1840 			    gw_html_escape(tag_commit)) == -1) {
1841 				error = got_error_from_errno("asprintf");
1842 				goto done;
1843 			}
1844 			break;
1845 		default:
1846 			break;
1847 		}
1848 
1849 		got_object_tag_close(tag);
1850 
1851 		error = buf_puts(&newsize, diffbuf, tag_row);
1852 
1853 		free(id_str);
1854 		free(refstr);
1855 		free(age);
1856 		free(tag_commit0);
1857 		free(tag_row);
1858 
1859 		if (error || (limit && --limit == 0))
1860 			break;
1861 	}
1862 
1863 	if (buf_len(diffbuf) > 0) {
1864 		error = buf_putc(diffbuf, '\0');
1865 		tags = strdup(buf_get(diffbuf));
1866 	}
1867 done:
1868 	buf_free(diffbuf);
1869 	got_ref_list_free(&refs);
1870 	if (repo)
1871 		got_repo_close(repo);
1872 	if (error)
1873 		return NULL;
1874 	else
1875 		return tags;
1876 }
1877 
1878 static void
1879 gw_free_headers(struct gw_header *header)
1880 {
1881 	free(header->id);
1882 	free(header->path);
1883 	if (header->commit != NULL)
1884 		got_object_commit_close(header->commit);
1885 	if (header->repo)
1886 		got_repo_close(header->repo);
1887 	free(header->refs_str);
1888 	free(header->commit_id);
1889 	free(header->parent_id);
1890 	free(header->tree_id);
1891 	free(header->author);
1892 	free(header->committer);
1893 	free(header->commit_msg);
1894 }
1895 
1896 static struct gw_header *
1897 gw_init_header()
1898 {
1899 	struct gw_header *header;
1900 
1901 	header = malloc(sizeof(*header));
1902 	if (header == NULL)
1903 		return NULL;
1904 
1905 	header->repo = NULL;
1906 	header->commit = NULL;
1907 	header->id = NULL;
1908 	header->path = NULL;
1909 	SIMPLEQ_INIT(&header->refs);
1910 
1911 	return header;
1912 }
1913 
1914 static const struct got_error *
1915 gw_get_commits(struct gw_trans * gw_trans, struct gw_header *header,
1916     int limit)
1917 {
1918 	const struct got_error *error = NULL;
1919 	struct got_commit_graph *graph = NULL;
1920 
1921 	error = got_commit_graph_open(&graph, header->path, 0);
1922 	if (error)
1923 		goto done;
1924 
1925 	error = got_commit_graph_iter_start(graph, header->id, header->repo,
1926 	    NULL, NULL);
1927 	if (error)
1928 		goto done;
1929 
1930 	for (;;) {
1931 		error = got_commit_graph_iter_next(&header->id, graph,
1932 		    header->repo, NULL, NULL);
1933 		if (error) {
1934 			if (error->code == GOT_ERR_ITER_COMPLETED)
1935 				error = NULL;
1936 			goto done;
1937 		}
1938 		if (header->id == NULL)
1939 			goto done;
1940 
1941 		error = got_object_open_as_commit(&header->commit, header->repo,
1942 		    header->id);
1943 		if (error)
1944 			goto done;
1945 
1946 		error = gw_get_commit(gw_trans, header);
1947 		if (limit > 1) {
1948 			struct gw_header *n_header = NULL;
1949 			if ((n_header = gw_init_header()) == NULL) {
1950 				error = got_error_from_errno("malloc");
1951 				goto done;
1952 			}
1953 
1954 			n_header->refs_str = strdup(header->refs_str);
1955 			n_header->commit_id = strdup(header->commit_id);
1956 			n_header->parent_id = strdup(header->parent_id);
1957 			n_header->tree_id = strdup(header->tree_id);
1958 			n_header->author = strdup(header->author);
1959 			n_header->committer = strdup(header->committer);
1960 			n_header->commit_msg = strdup(header->commit_msg);
1961 			n_header->committer_time = header->committer_time;
1962 			TAILQ_INSERT_TAIL(&gw_trans->gw_headers, n_header,
1963 			    entry);
1964 		}
1965 		if (error || (limit && --limit == 0))
1966 			break;
1967 	}
1968 done:
1969 	if (graph)
1970 		got_commit_graph_close(graph);
1971 	return error;
1972 }
1973 
1974 static const struct got_error *
1975 gw_get_commit(struct gw_trans *gw_trans, struct gw_header *header)
1976 {
1977 	const struct got_error *error = NULL;
1978 	struct got_reflist_entry *re;
1979 	struct got_object_id *id2 = NULL;
1980 	struct got_object_qid *parent_id;
1981 	char *refs_str = NULL,
1982 	     *commit_msg = NULL, *commit_msg0;
1983 
1984 	/*print commit*/
1985 	SIMPLEQ_FOREACH(re, &header->refs, entry) {
1986 		char *s;
1987 		const char *name;
1988 		struct got_tag_object *tag = NULL;
1989 		int cmp;
1990 
1991 		name = got_ref_get_name(re->ref);
1992 		if (strcmp(name, GOT_REF_HEAD) == 0)
1993 			continue;
1994 		if (strncmp(name, "refs/", 5) == 0)
1995 			name += 5;
1996 		if (strncmp(name, "got/", 4) == 0)
1997 			continue;
1998 		if (strncmp(name, "heads/", 6) == 0)
1999 			name += 6;
2000 		if (strncmp(name, "remotes/", 8) == 0)
2001 			name += 8;
2002 		if (strncmp(name, "tags/", 5) == 0) {
2003 			error = got_object_open_as_tag(&tag, header->repo,
2004 			    re->id);
2005 			if (error) {
2006 				if (error->code != GOT_ERR_OBJ_TYPE)
2007 					continue;
2008 				/*
2009 				 * Ref points at something other
2010 				 * than a tag.
2011 				 */
2012 				error = NULL;
2013 				tag = NULL;
2014 			}
2015 		}
2016 		cmp = got_object_id_cmp(tag ?
2017 		    got_object_tag_get_object_id(tag) : re->id, header->id);
2018 		if (tag)
2019 			got_object_tag_close(tag);
2020 		if (cmp != 0)
2021 			continue;
2022 		s = refs_str;
2023 		if (asprintf(&refs_str, "%s%s%s", s ? s : "",
2024 		    s ? ", " : "", name) == -1) {
2025 			error = got_error_from_errno("asprintf");
2026 			free(s);
2027 			return error;
2028 		}
2029 		header->refs_str = strdup(refs_str);
2030 		free(s);
2031 	}
2032 
2033 	if (refs_str == NULL)
2034 		header->refs_str = strdup("");
2035 	free(refs_str);
2036 
2037 	error = got_object_id_str(&header->commit_id, header->id);
2038 	if (error)
2039 		return error;
2040 
2041 	error = got_object_id_str(&header->tree_id,
2042 	    got_object_commit_get_tree_id(header->commit));
2043 	if (error)
2044 		return error;
2045 
2046 	if (gw_trans->action == GW_DIFF) {
2047 		parent_id = SIMPLEQ_FIRST(
2048 		    got_object_commit_get_parent_ids(header->commit));
2049 		if (parent_id != NULL) {
2050 			id2 = got_object_id_dup(parent_id->id);
2051 			free (parent_id);
2052 			error = got_object_id_str(&header->parent_id, id2);
2053 			if (error)
2054 				return error;
2055 			free(id2);
2056 		} else
2057 			header->parent_id = strdup("/dev/null");
2058 	} else
2059 		header->parent_id = strdup("");
2060 
2061 	header->committer_time =
2062 	    got_object_commit_get_committer_time(header->commit);
2063 
2064 	if (gw_trans->action != GW_BRIEFS && gw_trans->action != GW_SUMMARY) {
2065 		header->author = strdup(
2066 	 	    gw_html_escape(got_object_commit_get_author(header->commit))
2067 		);
2068 	} else {
2069 		header->author = strdup(
2070 		    got_object_commit_get_author(header->commit)
2071 		);
2072 	}
2073 
2074 	header->committer = strdup(
2075 		gw_html_escape(got_object_commit_get_committer(header->commit))
2076 	);
2077 
2078 	error = got_object_commit_get_logmsg(&commit_msg0, header->commit);
2079 	if (error)
2080 		return error;
2081 
2082 	commit_msg = commit_msg0;
2083 	while (*commit_msg == '\n')
2084 		commit_msg++;
2085 
2086 	header->commit_msg = strdup(commit_msg);
2087 	free(commit_msg0);
2088 	return error;
2089 }
2090 
2091 static const struct got_error *
2092 gw_get_header(struct gw_trans *gw_trans, struct gw_header *header, int limit)
2093 {
2094 	const struct got_error *error = NULL;
2095 	char *in_repo_path = NULL;
2096 
2097 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
2098 	if (error)
2099 		return error;
2100 
2101 	if (gw_trans->commit == NULL) {
2102 		struct got_reference *head_ref;
2103 		error = got_ref_open(&head_ref, header->repo,
2104 		    gw_trans->headref, 0);
2105 		if (error)
2106 			return error;
2107 
2108 		error = got_ref_resolve(&header->id, header->repo, head_ref);
2109 		got_ref_close(head_ref);
2110 		if (error)
2111 			return error;
2112 
2113 		error = got_object_open_as_commit(&header->commit,
2114 		    header->repo, header->id);
2115 	} else {
2116 		struct got_reference *ref;
2117 		error = got_ref_open(&ref, header->repo, gw_trans->commit, 0);
2118 		if (error == NULL) {
2119 			int obj_type;
2120 			error = got_ref_resolve(&header->id, header->repo, ref);
2121 			got_ref_close(ref);
2122 			if (error)
2123 				return error;
2124 			error = got_object_get_type(&obj_type, header->repo,
2125 			    header->id);
2126 			if (error)
2127 				return error;
2128 			if (obj_type == GOT_OBJ_TYPE_TAG) {
2129 				struct got_tag_object *tag;
2130 				error = got_object_open_as_tag(&tag,
2131 				    header->repo, header->id);
2132 				if (error)
2133 					return error;
2134 				if (got_object_tag_get_object_type(tag) !=
2135 				    GOT_OBJ_TYPE_COMMIT) {
2136 					got_object_tag_close(tag);
2137 					error = got_error(GOT_ERR_OBJ_TYPE);
2138 					return error;
2139 				}
2140 				free(header->id);
2141 				header->id = got_object_id_dup(
2142 				    got_object_tag_get_object_id(tag));
2143 				if (header->id == NULL)
2144 					error = got_error_from_errno(
2145 					    "got_object_id_dup");
2146 				got_object_tag_close(tag);
2147 				if (error)
2148 					return error;
2149 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
2150 				error = got_error(GOT_ERR_OBJ_TYPE);
2151 				return error;
2152 			}
2153 			error = got_object_open_as_commit(&header->commit,
2154 			    header->repo, header->id);
2155 			if (error)
2156 				return error;
2157 		}
2158 		if (header->commit == NULL) {
2159 			error = got_repo_match_object_id_prefix(&header->id,
2160 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
2161 			    header->repo);
2162 			if (error)
2163 				return error;
2164 		}
2165 		error = got_repo_match_object_id_prefix(&header->id,
2166 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
2167 			    header->repo);
2168 	}
2169 
2170 	error = got_repo_map_path(&in_repo_path, header->repo,
2171 	    gw_trans->repo_path, 1);
2172 	if (error)
2173 		return error;
2174 
2175 	if (in_repo_path) {
2176 		header->path = strdup(in_repo_path);
2177 	}
2178 	free(in_repo_path);
2179 
2180 	error = got_ref_list(&header->refs, header->repo, NULL,
2181 	    got_ref_cmp_by_name, NULL);
2182 	if (error)
2183 		return error;
2184 
2185 	error = gw_get_commits(gw_trans, header, limit);
2186 	return error;
2187 }
2188 
2189 struct blame_line {
2190 	int annotated;
2191 	char *id_str;
2192 	char *committer;
2193 	char datebuf[11]; /* YYYY-MM-DD + NUL */
2194 };
2195 
2196 struct gw_blame_cb_args {
2197 	struct blame_line *lines;
2198 	int nlines;
2199 	int nlines_prec;
2200 	int lineno_cur;
2201 	off_t *line_offsets;
2202 	FILE *f;
2203 	struct got_repository *repo;
2204 	struct gw_trans *gw_trans;
2205 	struct buf *blamebuf;
2206 };
2207 
2208 static const struct got_error *
2209 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
2210 {
2211 	const struct got_error *err = NULL;
2212 	struct gw_blame_cb_args *a = arg;
2213 	struct blame_line *bline;
2214 	char *line = NULL;
2215 	size_t linesize = 0, newsize;
2216 	struct got_commit_object *commit = NULL;
2217 	off_t offset;
2218 	struct tm tm;
2219 	time_t committer_time;
2220 
2221 	if (nlines != a->nlines ||
2222 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
2223 		return got_error(GOT_ERR_RANGE);
2224 
2225 	if (lineno == -1)
2226 		return NULL; /* no change in this commit */
2227 
2228 	/* Annotate this line. */
2229 	bline = &a->lines[lineno - 1];
2230 	if (bline->annotated)
2231 		return NULL;
2232 	err = got_object_id_str(&bline->id_str, id);
2233 	if (err)
2234 		return err;
2235 
2236 	err = got_object_open_as_commit(&commit, a->repo, id);
2237 	if (err)
2238 		goto done;
2239 
2240 	bline->committer = strdup(got_object_commit_get_committer(commit));
2241 	if (bline->committer == NULL) {
2242 		err = got_error_from_errno("strdup");
2243 		goto done;
2244 	}
2245 
2246 	committer_time = got_object_commit_get_committer_time(commit);
2247 	if (localtime_r(&committer_time, &tm) == NULL)
2248 		return got_error_from_errno("localtime_r");
2249 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
2250 	    &tm) >= sizeof(bline->datebuf)) {
2251 		err = got_error(GOT_ERR_NO_SPACE);
2252 		goto done;
2253 	}
2254 	bline->annotated = 1;
2255 
2256 	/* Print lines annotated so far. */
2257 	bline = &a->lines[a->lineno_cur - 1];
2258 	if (!bline->annotated)
2259 		goto done;
2260 
2261 	offset = a->line_offsets[a->lineno_cur - 1];
2262 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
2263 		err = got_error_from_errno("fseeko");
2264 		goto done;
2265 	}
2266 
2267 	while (bline->annotated) {
2268 		char *smallerthan, *at, *nl, *committer, *blame_row = NULL,
2269 		     *line_escape = NULL;
2270 		size_t len;
2271 
2272 		if (getline(&line, &linesize, a->f) == -1) {
2273 			if (ferror(a->f))
2274 				err = got_error_from_errno("getline");
2275 			break;
2276 		}
2277 
2278 		committer = bline->committer;
2279 		smallerthan = strchr(committer, '<');
2280 		if (smallerthan && smallerthan[1] != '\0')
2281 			committer = smallerthan + 1;
2282 		at = strchr(committer, '@');
2283 		if (at)
2284 			*at = '\0';
2285 		len = strlen(committer);
2286 		if (len >= 9)
2287 			committer[8] = '\0';
2288 
2289 		nl = strchr(line, '\n');
2290 		if (nl)
2291 			*nl = '\0';
2292 
2293 		if (strcmp(line, "") != 0)
2294 			line_escape = strdup(gw_html_escape(line));
2295 		else
2296 			line_escape = strdup("");
2297 
2298 		asprintf(&blame_row, blame_line, a->nlines_prec,
2299 		    a->lineno_cur, bline->id_str, bline->datebuf, committer,
2300 		    line_escape);
2301 		a->lineno_cur++;
2302 		err = buf_puts(&newsize, a->blamebuf, blame_row);
2303 		if (err)
2304 			return err;
2305 
2306 		bline = &a->lines[a->lineno_cur - 1];
2307 		free(line_escape);
2308 		free(blame_row);
2309 	}
2310 done:
2311 	if (commit)
2312 		got_object_commit_close(commit);
2313 	free(line);
2314 	return err;
2315 }
2316 
2317 static char*
2318 gw_get_file_blame(struct gw_trans *gw_trans)
2319 {
2320 	const struct got_error *error = NULL;
2321 	struct got_repository *repo = NULL;
2322 	struct got_object_id *obj_id = NULL;
2323 	struct got_object_id *commit_id = NULL;
2324 	struct got_blob_object *blob = NULL;
2325 	char *blame_html = NULL, *path = NULL, *in_repo_path = NULL,
2326 	     *folder = NULL;
2327 	struct gw_blame_cb_args bca;
2328 	int i, obj_type;
2329 	size_t filesize;
2330 
2331 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2332 	if (error)
2333 		goto done;
2334 
2335 	if (gw_trans->repo_folder != NULL) {
2336 		if (asprintf(&folder, "%s/", gw_trans->repo_folder) == -1) {
2337 			error = got_error_from_errno("asprintf");
2338 			goto done;
2339 		}
2340 	} else
2341 		folder = strdup("");
2342 
2343 	if (asprintf(&path, "%s%s", folder, gw_trans->repo_file) == -1) {
2344 		error = got_error_from_errno("asprintf");
2345 		goto done;
2346 	}
2347 	free(folder);
2348 
2349 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
2350 	if (error)
2351 		goto done;
2352 
2353 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit,
2354 	    GOT_OBJ_TYPE_COMMIT, 1, repo);
2355 	if (error)
2356 		goto done;
2357 
2358 	error = got_object_id_by_path(&obj_id, repo, commit_id, in_repo_path);
2359 	if (error)
2360 		goto done;
2361 
2362 	if (obj_id == NULL) {
2363 		error = got_error(GOT_ERR_NO_OBJ);
2364 		goto done;
2365 	}
2366 
2367 	error = got_object_get_type(&obj_type, repo, obj_id);
2368 	if (error)
2369 		goto done;
2370 
2371 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
2372 		error = got_error(GOT_ERR_OBJ_TYPE);
2373 		goto done;
2374 	}
2375 
2376 	error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
2377 	if (error)
2378 		goto done;
2379 
2380 	error = buf_alloc(&bca.blamebuf, 0);
2381 	if (error)
2382 		goto done;
2383 
2384 	bca.f = got_opentemp();
2385 	if (bca.f == NULL) {
2386 		error = got_error_from_errno("got_opentemp");
2387 		goto done;
2388 	}
2389 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
2390 	    &bca.line_offsets, bca.f, blob);
2391 	if (error || bca.nlines == 0)
2392 		goto done;
2393 
2394 	/* Don't include \n at EOF in the blame line count. */
2395 	if (bca.line_offsets[bca.nlines - 1] == filesize)
2396 		bca.nlines--;
2397 
2398 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
2399 	if (bca.lines == NULL) {
2400 		error = got_error_from_errno("calloc");
2401 		goto done;
2402 	}
2403 	bca.lineno_cur = 1;
2404 	bca.nlines_prec = 0;
2405 	i = bca.nlines;
2406 	while (i > 0) {
2407 		i /= 10;
2408 		bca.nlines_prec++;
2409 	}
2410 	bca.repo = repo;
2411 	bca.gw_trans = gw_trans;
2412 
2413 	error = got_blame(in_repo_path, commit_id, repo, gw_blame_cb, &bca,
2414 	    NULL, NULL);
2415 	if (buf_len(bca.blamebuf) > 0) {
2416 		error = buf_putc(bca.blamebuf, '\0');
2417 		blame_html = strdup(buf_get(bca.blamebuf));
2418 	}
2419 done:
2420 	free(bca.blamebuf);
2421 	free(in_repo_path);
2422 	free(commit_id);
2423 	free(obj_id);
2424 	free(path);
2425 
2426 	if (blob)
2427 		error = got_object_blob_close(blob);
2428 	if (repo)
2429 		error = got_repo_close(repo);
2430 	if (error)
2431 		return NULL;
2432 	if (bca.lines) {
2433 		for (i = 0; i < bca.nlines; i++) {
2434 			struct blame_line *bline = &bca.lines[i];
2435 			free(bline->id_str);
2436 			free(bline->committer);
2437 		}
2438 		free(bca.lines);
2439 	}
2440 	free(bca.line_offsets);
2441 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
2442 		error = got_error_from_errno("fclose");
2443 	if (error)
2444 		return NULL;
2445 	else
2446 		return blame_html;
2447 }
2448 
2449 static char*
2450 gw_get_repo_tree(struct gw_trans *gw_trans)
2451 {
2452 	const struct got_error *error = NULL;
2453 	struct got_repository *repo = NULL;
2454 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
2455 	struct got_tree_object *tree = NULL;
2456 	struct buf *diffbuf = NULL;
2457 	size_t newsize;
2458 	char *tree_html = NULL, *path = NULL, *in_repo_path = NULL,
2459 	    *tree_row = NULL, *id_str, *class = NULL;
2460 	int nentries, i, class_flip = 0;
2461 
2462 	error = buf_alloc(&diffbuf, 0);
2463 	if (error)
2464 		return NULL;
2465 
2466 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2467 	if (error)
2468 		goto done;
2469 
2470 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
2471 	if (error)
2472 		goto done;
2473 
2474 	if (gw_trans->repo_folder != NULL)
2475 		path = strdup(gw_trans->repo_folder);
2476 	else if (in_repo_path) {
2477 		free(path);
2478 		path = in_repo_path;
2479 	}
2480 
2481 	if (gw_trans->commit == NULL) {
2482 		struct got_reference *head_ref;
2483 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
2484 		if (error)
2485 			goto done;
2486 
2487 		error = got_ref_resolve(&commit_id, repo, head_ref);
2488 		got_ref_close(head_ref);
2489 
2490 	} else
2491 		error = got_repo_match_object_id(&commit_id, NULL,
2492 		    gw_trans->commit, GOT_OBJ_TYPE_COMMIT, 1, repo);
2493 	if (error)
2494 		goto done;
2495 
2496 	error = got_object_id_str(&gw_trans->commit, commit_id);
2497 	if (error)
2498 		goto done;
2499 
2500 	error = got_object_id_by_path(&tree_id, repo, commit_id, path);
2501 	if (error)
2502 		goto done;
2503 
2504 	error = got_object_open_as_tree(&tree, repo, tree_id);
2505 	if (error)
2506 		goto done;
2507 
2508 	nentries = got_object_tree_get_nentries(tree);
2509 
2510 	for (i = 0; i < nentries; i++) {
2511 		struct got_tree_entry *te;
2512 		const char *modestr = "";
2513 		char *id = NULL, *url_html = NULL;
2514 
2515 		te = got_object_tree_get_entry(tree, i);
2516 
2517 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
2518 		if (error)
2519 			goto done;
2520 
2521 		if (asprintf(&id, "%s", id_str) == -1) {
2522 			error = got_error_from_errno("asprintf");
2523 			free(id_str);
2524 			goto done;
2525 		}
2526 
2527 		mode_t mode = got_tree_entry_get_mode(te);
2528 
2529 		if (got_object_tree_entry_is_submodule(te))
2530 			modestr = "$";
2531 		else if (S_ISLNK(mode))
2532 			modestr = "@";
2533 		else if (S_ISDIR(mode))
2534 			modestr = "/";
2535 		else if (mode & S_IXUSR)
2536 			modestr = "*";
2537 
2538 		if (class_flip == 0) {
2539 			class = strdup("back_lightgray");
2540 			class_flip = 1;
2541 		} else {
2542 			class = strdup("back_white");
2543 			class_flip = 0;
2544 		}
2545 
2546 		char *build_folder = NULL;
2547 		if (S_ISDIR(got_tree_entry_get_mode(te))) {
2548 			if (gw_trans->repo_folder != NULL) {
2549 				if (asprintf(&build_folder, "%s/%s",
2550 				    gw_trans->repo_folder,
2551 				    got_tree_entry_get_name(te)) == -1) {
2552 					error =
2553 					    got_error_from_errno("asprintf");
2554 					goto done;
2555 				}
2556 			} else {
2557 				if (asprintf(&build_folder, "%s",
2558 				    got_tree_entry_get_name(te)) == -1)
2559 					goto done;
2560 			}
2561 
2562 			if (asprintf(&url_html, folder_html,
2563 			    gw_trans->repo_name, gw_trans->action_name,
2564 			    gw_trans->commit, build_folder,
2565 			    got_tree_entry_get_name(te), modestr) == -1) {
2566 				error = got_error_from_errno("asprintf");
2567 				goto done;
2568 			}
2569 		} else {
2570 			if (gw_trans->repo_folder != NULL) {
2571 				if (asprintf(&build_folder, "%s",
2572 				    gw_trans->repo_folder) == -1) {
2573 					error =
2574 					    got_error_from_errno("asprintf");
2575 					goto done;
2576 				}
2577 			} else
2578 				build_folder = strdup("");
2579 
2580 			if (asprintf(&url_html, file_html, gw_trans->repo_name,
2581 			    "blame", gw_trans->commit,
2582 			    got_tree_entry_get_name(te), build_folder,
2583 			    got_tree_entry_get_name(te), modestr) == -1) {
2584 				error = got_error_from_errno("asprintf");
2585 				goto done;
2586 			}
2587 		}
2588 		free(build_folder);
2589 
2590 		if (error)
2591 			goto done;
2592 
2593 		if ((asprintf(&tree_row, tree_line, class, url_html)) == -1) {
2594 			error = got_error_from_errno("asprintf");
2595 			goto done;
2596 		}
2597 		error = buf_puts(&newsize, diffbuf, tree_row);
2598 		if (error)
2599 			goto done;
2600 
2601 		free(id);
2602 		free(id_str);
2603 		free(url_html);
2604 		free(tree_row);
2605 	}
2606 
2607 	if (buf_len(diffbuf) > 0) {
2608 		error = buf_putc(diffbuf, '\0');
2609 		tree_html = strdup(buf_get(diffbuf));
2610 	}
2611 done:
2612 	if (tree)
2613 		got_object_tree_close(tree);
2614 	if (repo)
2615 		got_repo_close(repo);
2616 
2617 	free(in_repo_path);
2618 	free(tree_id);
2619 	free(diffbuf);
2620 	if (error)
2621 		return NULL;
2622 	else
2623 		return tree_html;
2624 }
2625 
2626 static char *
2627 gw_get_repo_heads(struct gw_trans *gw_trans)
2628 {
2629 	const struct got_error *error = NULL;
2630 	struct got_repository *repo = NULL;
2631 	struct got_reflist_head refs;
2632 	struct got_reflist_entry *re;
2633 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
2634 	struct buf *diffbuf = NULL;
2635 	size_t newsize;
2636 
2637 	SIMPLEQ_INIT(&refs);
2638 
2639 	error = buf_alloc(&diffbuf, 0);
2640 	if (error)
2641 		return NULL;
2642 
2643 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2644 	if (error)
2645 		goto done;
2646 
2647 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
2648 	    NULL);
2649 	if (error)
2650 		goto done;
2651 
2652 	SIMPLEQ_FOREACH(re, &refs, entry) {
2653 		char *refname;
2654 
2655 		refname = strdup(got_ref_get_name(re->ref));
2656 		if (refname == NULL) {
2657 			error = got_error_from_errno("got_ref_to_str");
2658 			goto done;
2659 		}
2660 
2661 		if (strncmp(refname, "refs/heads/", 11) != 0) {
2662 			free(refname);
2663 			continue;
2664 		}
2665 
2666 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path, refname,
2667 		    TM_DIFF);
2668 		if (error)
2669 			goto done;
2670 
2671 		if (asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
2672 		    refname, gw_trans->repo_name, refname,
2673 		    gw_trans->repo_name, refname, gw_trans->repo_name,
2674 		    refname) == -1) {
2675 			error = got_error_from_errno("asprintf");
2676 			goto done;
2677 		}
2678 
2679 		if (strncmp(refname, "refs/heads/", 11) == 0)
2680 			refname += 11;
2681 
2682 		if (asprintf(&head_row, heads_row, age, refname,
2683 		    head_navs_disp) == -1) {
2684 			error = got_error_from_errno("asprintf");
2685 			goto done;
2686 		}
2687 
2688 		error = buf_puts(&newsize, diffbuf, head_row);
2689 
2690 		free(head_navs_disp);
2691 		free(head_row);
2692 	}
2693 
2694 	if (buf_len(diffbuf) > 0) {
2695 		error = buf_putc(diffbuf, '\0');
2696 		heads = strdup(buf_get(diffbuf));
2697 	}
2698 done:
2699 	buf_free(diffbuf);
2700 	got_ref_list_free(&refs);
2701 	if (repo)
2702 		got_repo_close(repo);
2703 	if (error)
2704 		return NULL;
2705 	else
2706 		return heads;
2707 }
2708 
2709 static char *
2710 gw_get_got_link(struct gw_trans *gw_trans)
2711 {
2712 	char *link;
2713 
2714 	if (asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
2715 	    gw_trans->gw_conf->got_logo) == -1)
2716 		return NULL;
2717 
2718 	return link;
2719 }
2720 
2721 static char *
2722 gw_get_site_link(struct gw_trans *gw_trans)
2723 {
2724 	char *link, *repo = "", *action = "";
2725 
2726 	if (gw_trans->repo_name != NULL)
2727 		if (asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
2728 		    "</a>", gw_trans->repo_name, gw_trans->repo_name) == -1)
2729 			return NULL;
2730 
2731 	if (gw_trans->action_name != NULL)
2732 		if (asprintf(&action, " / %s", gw_trans->action_name) == -1)
2733 			return NULL;
2734 
2735 	if (asprintf(&link, site_link, GOTWEB,
2736 	    gw_trans->gw_conf->got_site_link, repo, action) == -1)
2737 		return NULL;
2738 
2739 	return link;
2740 }
2741 
2742 static char *
2743 gw_colordiff_line(char *buf)
2744 {
2745 	const struct got_error *error = NULL;
2746 	char *colorized_line = NULL, *div_diff_line_div = NULL, *color = NULL;
2747 	struct buf *diffbuf = NULL;
2748 	size_t newsize;
2749 
2750 	error = buf_alloc(&diffbuf, 0);
2751 	if (error)
2752 		return NULL;
2753 
2754 	if (buf == NULL)
2755 		return NULL;
2756 	if (strncmp(buf, "-", 1) == 0)
2757 		color = "diff_minus";
2758 	if (strncmp(buf, "+", 1) == 0)
2759 		color = "diff_plus";
2760 	if (strncmp(buf, "@@", 2) == 0)
2761 		color = "diff_chunk_header";
2762 	if (strncmp(buf, "@@", 2) == 0)
2763 		color = "diff_chunk_header";
2764 	if (strncmp(buf, "commit +", 8) == 0)
2765 		color = "diff_meta";
2766 	if (strncmp(buf, "commit -", 8) == 0)
2767 		color = "diff_meta";
2768 	if (strncmp(buf, "blob +", 6) == 0)
2769 		color = "diff_meta";
2770 	if (strncmp(buf, "blob -", 6) == 0)
2771 		color = "diff_meta";
2772 	if (strncmp(buf, "file +", 6) == 0)
2773 		color = "diff_meta";
2774 	if (strncmp(buf, "file -", 6) == 0)
2775 		color = "diff_meta";
2776 	if (strncmp(buf, "from:", 5) == 0)
2777 		color = "diff_author";
2778 	if (strncmp(buf, "via:", 4) == 0)
2779 		color = "diff_author";
2780 	if (strncmp(buf, "date:", 5) == 0)
2781 		color = "diff_date";
2782 
2783 	if (asprintf(&div_diff_line_div, div_diff_line, color) == -1)
2784 		return NULL;
2785 
2786 	error = buf_puts(&newsize, diffbuf, div_diff_line_div);
2787 	if (error)
2788 		return NULL;
2789 
2790 	error = buf_puts(&newsize, diffbuf, buf);
2791 	if (error)
2792 		return NULL;
2793 
2794 	if (buf_len(diffbuf) > 0) {
2795 		error = buf_putc(diffbuf, '\0');
2796 		colorized_line = strdup(buf_get(diffbuf));
2797 	}
2798 
2799 	free(diffbuf);
2800 	free(div_diff_line_div);
2801 	return colorized_line;
2802 }
2803 
2804 static char *
2805 gw_html_escape(const char *html)
2806 {
2807 	char *escaped_str = NULL, *buf;
2808 	char c[1];
2809 	size_t sz, i, buff_sz = 2048;
2810 
2811 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2812 		return NULL;
2813 
2814 	if (html == NULL)
2815 		return NULL;
2816 	else
2817 		if ((sz = strlen(html)) == 0)
2818 			return NULL;
2819 
2820 	/* only work with buff_sz */
2821 	if (buff_sz < sz)
2822 		sz = buff_sz;
2823 
2824 	for (i = 0; i < sz; i++) {
2825 		c[0] = html[i];
2826 		switch (c[0]) {
2827 		case ('>'):
2828 			strcat(buf, "&gt;");
2829 			break;
2830 		case ('&'):
2831 			strcat(buf, "&amp;");
2832 			break;
2833 		case ('<'):
2834 			strcat(buf, "&lt;");
2835 			break;
2836 		case ('"'):
2837 			strcat(buf, "&quot;");
2838 			break;
2839 		case ('\''):
2840 			strcat(buf, "&apos;");
2841 			break;
2842 		case ('\n'):
2843 			strcat(buf, "<br />");
2844 		default:
2845 			strcat(buf, &c[0]);
2846 			break;
2847 		}
2848 	}
2849 	asprintf(&escaped_str, "%s", buf);
2850 	free(buf);
2851 	return escaped_str;
2852 }
2853 
2854 int
2855 main(int argc, char *argv[])
2856 {
2857 	const struct got_error *error = NULL;
2858 	struct gw_trans *gw_trans;
2859 	struct gw_dir *dir = NULL, *tdir;
2860 	const char *page = "index";
2861 	int gw_malloc = 1;
2862 	enum kcgi_err kerr;
2863 
2864 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
2865 		errx(1, "malloc");
2866 
2867 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2868 		errx(1, "malloc");
2869 
2870 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2871 		errx(1, "malloc");
2872 
2873 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2874 		errx(1, "malloc");
2875 
2876 	kerr = khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX, &page, 1, 0);
2877 	if (kerr != KCGI_OK) {
2878 		error = gw_kcgi_error(kerr);
2879 		goto done;
2880 	}
2881 
2882 	if ((gw_trans->gw_conf =
2883 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2884 		gw_malloc = 0;
2885 		error = got_error_from_errno("malloc");
2886 		goto done;
2887 	}
2888 
2889 	TAILQ_INIT(&gw_trans->gw_dirs);
2890 	TAILQ_INIT(&gw_trans->gw_headers);
2891 
2892 	gw_trans->page = 0;
2893 	gw_trans->repos_total = 0;
2894 	gw_trans->repo_path = NULL;
2895 	gw_trans->commit = NULL;
2896 	gw_trans->headref = strdup(GOT_REF_HEAD);
2897 	gw_trans->mime = KMIME_TEXT_HTML;
2898 	gw_trans->gw_tmpl->key = gw_templs;
2899 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2900 	gw_trans->gw_tmpl->arg = gw_trans;
2901 	gw_trans->gw_tmpl->cb = gw_template;
2902 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2903 	if (error)
2904 		goto done;
2905 
2906 	error = gw_parse_querystring(gw_trans);
2907 	if (error)
2908 		goto done;
2909 
2910 	error = gw_display_index(gw_trans);
2911 done:
2912 	if (error) {
2913 		gw_trans->mime = KMIME_TEXT_PLAIN;
2914 		gw_trans->action = GW_ERR;
2915 		gw_display_error(gw_trans, error);
2916 	}
2917 	if (gw_malloc) {
2918 		free(gw_trans->gw_conf->got_repos_path);
2919 		free(gw_trans->gw_conf->got_site_name);
2920 		free(gw_trans->gw_conf->got_site_owner);
2921 		free(gw_trans->gw_conf->got_site_link);
2922 		free(gw_trans->gw_conf->got_logo);
2923 		free(gw_trans->gw_conf->got_logo_url);
2924 		free(gw_trans->gw_conf);
2925 		free(gw_trans->commit);
2926 		free(gw_trans->repo_path);
2927 		free(gw_trans->repo_name);
2928 		free(gw_trans->repo_file);
2929 		free(gw_trans->action_name);
2930 		free(gw_trans->headref);
2931 
2932 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
2933 			free(dir->name);
2934 			free(dir->description);
2935 			free(dir->age);
2936 			free(dir->url);
2937 			free(dir->path);
2938 			free(dir);
2939 		}
2940 
2941 	}
2942 
2943 	khttp_free(gw_trans->gw_req);
2944 	return 0;
2945 }