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 <stdbool.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 "buf.h"
50 #include "gotweb.h"
51 #include "gotweb_ui.h"
52 
53 #ifndef nitems
54 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
55 #endif
56 
57 struct gw_trans {
58 	TAILQ_HEAD(headers, gw_header)	 gw_headers;
59 	TAILQ_HEAD(dirs, gw_dir)	 gw_dirs;
60 	struct gw_dir		*gw_dir;
61 	struct gotweb_conf	*gw_conf;
62 	struct ktemplate	*gw_tmpl;
63 	struct khtmlreq		*gw_html_req;
64 	struct kreq		*gw_req;
65 	char			*repo_name;
66 	char			*repo_path;
67 	char			*commit;
68 	char			*repo_file;
69 	char			*repo_folder;
70 	char			*action_name;
71 	char			*headref;
72 	unsigned int		 action;
73 	unsigned int		 page;
74 	unsigned int		 repos_total;
75 	enum kmime		 mime;
76 };
77 
78 struct gw_header {
79 	TAILQ_ENTRY(gw_header)		 entry;
80 	struct got_repository		*repo;
81 	struct got_reflist_head		 refs;
82 	struct got_commit_object	*commit;
83 	struct got_object_id		*id;
84 	char				*path;
85 
86 	char			*refs_str;
87 	char			*commit_id; /* id_str1 */
88 	char			*parent_id; /* id_str2 */
89 	char			*tree_id;
90 	char			*author;
91 	char			*committer;
92 	char			*commit_msg;
93 	time_t			 committer_time;
94 };
95 
96 struct gw_dir {
97 	TAILQ_ENTRY(gw_dir)	 entry;
98 	char			*name;
99 	char			*owner;
100 	char			*description;
101 	char			*url;
102 	char			*age;
103 	char			*path;
104 };
105 
106 enum gw_key {
107 	KEY_ACTION,
108 	KEY_COMMIT_ID,
109 	KEY_FILE,
110 	KEY_FOLDER,
111 	KEY_HEADREF,
112 	KEY_PAGE,
113 	KEY_PATH,
114 	KEY__ZMAX
115 };
116 
117 enum gw_tmpl {
118 	TEMPL_CONTENT,
119 	TEMPL_HEAD,
120 	TEMPL_HEADER,
121 	TEMPL_SEARCH,
122 	TEMPL_SITEPATH,
123 	TEMPL_SITEOWNER,
124 	TEMPL_TITLE,
125 	TEMPL__MAX
126 };
127 
128 enum gw_ref_tm {
129 	TM_DIFF,
130 	TM_LONG,
131 };
132 
133 enum gw_tags {
134 	TAGBRIEF,
135 	TAGFULL,
136 };
137 
138 static const char *const gw_templs[TEMPL__MAX] = {
139 	"content",
140 	"head",
141 	"header",
142 	"search",
143 	"sitepath",
144 	"siteowner",
145 	"title",
146 };
147 
148 static const struct kvalid gw_keys[KEY__ZMAX] = {
149 	{ kvalid_stringne,	"action" },
150 	{ kvalid_stringne,	"commit" },
151 	{ kvalid_stringne,	"file" },
152 	{ kvalid_stringne,	"folder" },
153 	{ kvalid_stringne,	"headref" },
154 	{ kvalid_int,		"page" },
155 	{ kvalid_stringne,	"path" },
156 };
157 
158 static struct gw_dir		*gw_init_gw_dir(char *);
159 static struct gw_header		*gw_init_header(void);
160 
161 static char			*gw_get_repo_description(struct gw_trans *,
162 				    char *);
163 static char			*gw_get_repo_owner(struct gw_trans *,
164 				    char *);
165 static char			*gw_get_time_str(time_t, int);
166 static char			*gw_get_repo_age(struct gw_trans *,
167 				    char *, char *, int);
168 static char			*gw_get_file_blame(struct gw_trans *);
169 static char			*gw_get_repo_tree(struct gw_trans *);
170 static char			*gw_get_diff(struct gw_trans *,
171 				    struct gw_header *);
172 static char			*gw_get_repo_tags(struct gw_trans *,
173 				    struct gw_header *, int, int);
174 static char			*gw_get_repo_heads(struct gw_trans *);
175 static char			*gw_get_clone_url(struct gw_trans *, char *);
176 static char			*gw_get_got_link(struct gw_trans *);
177 static char			*gw_get_site_link(struct gw_trans *);
178 static char			*gw_html_escape(const char *);
179 static char			*gw_colordiff_line(char *);
180 
181 static char			*gw_gen_commit_header(char *, char*);
182 static char			*gw_gen_diff_header(char *, char*);
183 static char			*gw_gen_author_header(char *);
184 static char			*gw_gen_committer_header(char *);
185 static char			*gw_gen_age_header(char *);
186 static char			*gw_gen_commit_msg_header(char *);
187 static char			*gw_gen_tree_header(char *);
188 
189 static void			 gw_free_headers(struct gw_header *);
190 static const struct got_error*	 gw_display_open(struct gw_trans *, enum khttp,
191 				    enum kmime);
192 static const struct got_error*	 gw_display_index(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 		return error;
322 
323 	error = gw_get_header(gw_trans, header, 1);
324 	if (error)
325 		return error;
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 			return got_error_from_errno("strdup");
333 	}
334 
335 	if ((asprintf(&blame_html_disp, blame_header,
336 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
337 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
338 	    blame_html)) == -1) {
339 		error = got_error_from_errno("asprintf");
340 		goto done;
341 	}
342 
343 	if (asprintf(&blame, blame_wrapper, blame_html_disp) == -1) {
344 		error = got_error_from_errno("asprintf");
345 		goto done;
346 	}
347 
348 	kerr = khttp_puts(gw_trans->gw_req, blame);
349 	if (kerr != KCGI_OK)
350 		error = gw_kcgi_error(kerr);
351 done:
352 	got_ref_list_free(&header->refs);
353 	gw_free_headers(header);
354 	free(blame_html_disp);
355 	free(blame_html);
356 	free(blame);
357 	return error;
358 }
359 
360 static const struct got_error *
361 gw_diff(struct gw_trans *gw_trans)
362 {
363 	const struct got_error *error = NULL;
364 	struct gw_header *header = NULL;
365 	char *diff = NULL, *diff_html = NULL, *diff_html_disp = NULL;
366 	enum kcgi_err kerr;
367 
368 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
369 	    NULL) == -1)
370 		return got_error_from_errno("pledge");
371 
372 	if ((header = gw_init_header()) == NULL)
373 		return got_error_from_errno("malloc");
374 
375 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
376 	if (error)
377 		goto done;
378 
379 	error = gw_get_header(gw_trans, header, 1);
380 	if (error)
381 		goto done;
382 
383 	diff_html = gw_get_diff(gw_trans, header);
384 
385 	if (diff_html == NULL) {
386 		diff_html = strdup("");
387 		if (diff_html == NULL) {
388 			error = got_error_from_errno("strdup");
389 			goto done;
390 		}
391 	}
392 
393 	if (asprintf(&diff_html_disp, diff_header,
394 	    gw_gen_diff_header(header->parent_id, header->commit_id),
395 	    gw_gen_commit_header(header->commit_id, header->refs_str),
396 	    gw_gen_tree_header(header->tree_id),
397 	    gw_gen_author_header(header->author),
398 	    gw_gen_committer_header(header->committer),
399 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
400 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
401 	    diff_html) == -1) {
402 		error = got_error_from_errno("asprintf");
403 		goto done;
404 	}
405 
406 	if (asprintf(&diff, diff_wrapper, diff_html_disp) == -1) {
407 		error = got_error_from_errno("asprintf");
408 		goto done;
409 	}
410 
411 	kerr = khttp_puts(gw_trans->gw_req, diff);
412 	if (kerr != KCGI_OK)
413 		error = gw_kcgi_error(kerr);
414 done:
415 	got_ref_list_free(&header->refs);
416 	gw_free_headers(header);
417 	free(diff_html_disp);
418 	free(diff_html);
419 	free(diff);
420 	return error;
421 }
422 
423 static const struct got_error *
424 gw_index(struct gw_trans *gw_trans)
425 {
426 	const struct got_error *error = NULL;
427 	struct gw_dir *gw_dir = NULL;
428 	char *html, *navs, *next, *prev;
429 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
430 	enum kcgi_err kerr;
431 
432 	if (pledge("stdio rpath proc exec sendfd unveil",
433 	    NULL) == -1) {
434 		error = got_error_from_errno("pledge");
435 		return error;
436 	}
437 
438 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
439 	if (error)
440 		return error;
441 
442 	error = gw_load_got_paths(gw_trans);
443 	if (error)
444 		return error;
445 
446 	kerr = khttp_puts(gw_trans->gw_req, index_projects_header);
447 	if (kerr != KCGI_OK)
448 		return gw_kcgi_error(kerr);
449 
450 	if (TAILQ_EMPTY(&gw_trans->gw_dirs)) {
451 		if (asprintf(&html, index_projects_empty,
452 		    gw_trans->gw_conf->got_repos_path) == -1)
453 			return got_error_from_errno("asprintf");
454 		kerr = khttp_puts(gw_trans->gw_req, html);
455 		if (kerr != KCGI_OK)
456 			error = gw_kcgi_error(kerr);
457 		free(html);
458 		return error;
459 	}
460 
461 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
462 		dir_c++;
463 
464 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
465 		if (gw_trans->page > 0 && (gw_trans->page *
466 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
467 			prev_disp++;
468 			continue;
469 		}
470 
471 		prev_disp++;
472 
473 		if (error)
474 			return error;
475 		if((asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
476 		    gw_dir->name, gw_dir->name)) == -1)
477 			return got_error_from_errno("asprintf");
478 
479 		if ((asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
480 		    gw_dir->description, gw_dir->owner, gw_dir->age,
481 		    navs)) == -1)
482 			return got_error_from_errno("asprintf");
483 
484 		kerr = khttp_puts(gw_trans->gw_req, html);
485 		free(navs);
486 		free(html);
487 		if (kerr != KCGI_OK)
488 			return gw_kcgi_error(kerr);
489 
490 		if (gw_trans->gw_conf->got_max_repos_display == 0)
491 			continue;
492 
493 		if (next_disp == gw_trans->gw_conf->got_max_repos_display) {
494 			kerr = khttp_puts(gw_trans->gw_req, np_wrapper_start);
495 			if (kerr != KCGI_OK)
496 				return gw_kcgi_error(kerr);
497 		} else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
498 		    (gw_trans->page > 0) &&
499 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
500 		    prev_disp == gw_trans->repos_total)) {
501 			kerr = khttp_puts(gw_trans->gw_req, np_wrapper_start);
502 			if (kerr != KCGI_OK)
503 				return gw_kcgi_error(kerr);
504 		}
505 
506 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
507 		    (gw_trans->page > 0) &&
508 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
509 		    prev_disp == gw_trans->repos_total)) {
510 			if ((asprintf(&prev, nav_prev,
511 			    gw_trans->page - 1)) == -1)
512 				return got_error_from_errno("asprintf");
513 			kerr = khttp_puts(gw_trans->gw_req, prev);
514 			free(prev);
515 			if (kerr != KCGI_OK)
516 				return gw_kcgi_error(kerr);
517 		}
518 
519 		kerr = khttp_puts(gw_trans->gw_req, div_end);
520 		if (kerr != KCGI_OK)
521 			return gw_kcgi_error(kerr);
522 
523 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
524 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
525 		    dir_c != (gw_trans->page + 1) *
526 		    gw_trans->gw_conf->got_max_repos_display) {
527 			if ((asprintf(&next, nav_next,
528 			    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 		return error;
570 	}
571 
572 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
573 	if (error)
574 		return error;
575 
576 	error = gw_get_header(gw_trans, header,
577 	    gw_trans->gw_conf->got_max_commits_display);
578 
579 	kerr = khttp_puts(gw_trans->gw_req, commits_wrapper);
580 	if (kerr != KCGI_OK)
581 		return gw_kcgi_error(kerr);
582 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
583 		if ((asprintf(&commits_navs_html, commits_navs,
584 		    gw_trans->repo_name, n_header->commit_id,
585 		    gw_trans->repo_name, n_header->commit_id,
586 		    gw_trans->repo_name, n_header->commit_id)) == -1)
587 			return got_error_from_errno("asprintf");
588 
589 		if ((asprintf(&commits_html, commits_line,
590 	    	    gw_gen_commit_header(n_header->commit_id,
591 		        n_header->refs_str),
592 	    	    gw_gen_author_header(n_header->author),
593 	    	    gw_gen_committer_header(n_header->committer),
594 		    gw_gen_age_header(gw_get_time_str(n_header->committer_time,
595 		        TM_LONG)), gw_html_escape(n_header->commit_msg),
596 		    commits_navs_html)) == -1)
597 			return got_error_from_errno("asprintf");
598 		kerr = khttp_puts(gw_trans->gw_req, commits_html);
599 		if (kerr != KCGI_OK)
600 			return gw_kcgi_error(kerr);
601 	}
602 	kerr = khttp_puts(gw_trans->gw_req, div_end);
603 	if (kerr != KCGI_OK)
604 		error = gw_kcgi_error(kerr);
605 
606 	got_ref_list_free(&header->refs);
607 	gw_free_headers(header);
608 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
609 		gw_free_headers(n_header);
610 	return error;
611 }
612 
613 static const struct got_error *
614 gw_briefs(struct gw_trans *gw_trans)
615 {
616 	const struct got_error *error = NULL;
617 	char *briefs_html = NULL, *briefs_navs_html = NULL, *newline;
618 	struct gw_header *header = NULL, *n_header = NULL;
619 	enum kcgi_err kerr;
620 
621 	if ((header = gw_init_header()) == NULL)
622 		return got_error_from_errno("malloc");
623 
624 	if (pledge("stdio rpath proc exec sendfd unveil",
625 	    NULL) == -1) {
626 		error = got_error_from_errno("pledge");
627 		return error;
628 	}
629 
630 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
631 	if (error)
632 		return error;
633 
634 	if (gw_trans->action == GW_SUMMARY)
635 		error = gw_get_header(gw_trans, header, D_MAXSLCOMMDISP);
636 	else
637 		error = gw_get_header(gw_trans, header,
638 		    gw_trans->gw_conf->got_max_commits_display);
639 
640 	if (error)
641 		return error;
642 
643 	kerr = khttp_puts(gw_trans->gw_req, briefs_wrapper);
644 	if (kerr != KCGI_OK)
645 		return gw_kcgi_error(kerr);
646 
647 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
648 		if ((asprintf(&briefs_navs_html, briefs_navs,
649 		    gw_trans->repo_name, n_header->commit_id,
650 		    gw_trans->repo_name, n_header->commit_id,
651 		    gw_trans->repo_name, n_header->commit_id)) == -1)
652 			return got_error_from_errno("asprintf");
653 		newline = strchr(n_header->commit_msg, '\n');
654 		if (newline)
655 			*newline = '\0';
656 		if ((asprintf(&briefs_html, briefs_line,
657 		    gw_get_time_str(n_header->committer_time, TM_DIFF),
658 		    n_header->author, gw_html_escape(n_header->commit_msg),
659 		    briefs_navs_html)) == -1)
660 			return got_error_from_errno("asprintf");
661 		kerr = khttp_puts(gw_trans->gw_req, briefs_html);
662 		if (kerr != KCGI_OK)
663 			return gw_kcgi_error(kerr);
664 	}
665 	kerr = khttp_puts(gw_trans->gw_req, div_end);
666 	if (kerr != KCGI_OK)
667 		error = gw_kcgi_error(kerr);
668 
669 	got_ref_list_free(&header->refs);
670 	gw_free_headers(header);
671 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
672 		gw_free_headers(n_header);
673 	return error;
674 }
675 
676 static const struct got_error *
677 gw_summary(struct gw_trans *gw_trans)
678 {
679 	const struct got_error *error = NULL;
680 	char *description_html, *repo_owner_html, *repo_age_html,
681 	     *cloneurl_html, *tags, *heads, *tags_html,
682 	     *heads_html, *age;
683 	enum kcgi_err kerr;
684 
685 	if (pledge("stdio rpath proc exec sendfd unveil",
686 	    NULL) == -1) {
687 		error = got_error_from_errno("pledge");
688 		return error;
689 	}
690 
691 	/* unveil is applied with gw_briefs below */
692 
693 	kerr = khttp_puts(gw_trans->gw_req, summary_wrapper);
694 	if (kerr != KCGI_OK)
695 		return gw_kcgi_error(kerr);
696 
697 	if (gw_trans->gw_conf->got_show_repo_description) {
698 		if (gw_trans->gw_dir->description != NULL &&
699 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
700 			if ((asprintf(&description_html, description,
701 			    gw_trans->gw_dir->description)) == -1)
702 				return got_error_from_errno("asprintf");
703 
704 			kerr = khttp_puts(gw_trans->gw_req, description_html);
705 			free(description_html);
706 			if (kerr != KCGI_OK)
707 				return gw_kcgi_error(kerr);
708 		}
709 	}
710 
711 	if (gw_trans->gw_conf->got_show_repo_owner) {
712 		if (gw_trans->gw_dir->owner != NULL &&
713 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
714 			if ((asprintf(&repo_owner_html, repo_owner,
715 			    gw_trans->gw_dir->owner)) == -1)
716 				return got_error_from_errno("asprintf");
717 
718 			kerr = khttp_puts(gw_trans->gw_req, repo_owner_html);
719 			free(repo_owner_html);
720 			if (kerr != KCGI_OK)
721 				return gw_kcgi_error(kerr);
722 		}
723 	}
724 
725 	if (gw_trans->gw_conf->got_show_repo_age) {
726 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path,
727 		    "refs/heads", TM_LONG);
728 		if (age != NULL && (strcmp(age, "") != 0)) {
729 			if ((asprintf(&repo_age_html, last_change, age)) == -1)
730 				return got_error_from_errno("asprintf");
731 
732 			kerr = khttp_puts(gw_trans->gw_req, repo_age_html);
733 			free(repo_age_html);
734 			free(age);
735 			if (kerr != KCGI_OK)
736 				return gw_kcgi_error(kerr);
737 		}
738 	}
739 
740 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
741 		if (gw_trans->gw_dir->url != NULL &&
742 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
743 			if ((asprintf(&cloneurl_html, cloneurl,
744 			    gw_trans->gw_dir->url)) == -1)
745 				return got_error_from_errno("asprintf");
746 
747 			kerr = khttp_puts(gw_trans->gw_req, cloneurl_html);
748 			free(cloneurl_html);
749 			if (kerr != KCGI_OK)
750 				return gw_kcgi_error(kerr);
751 		}
752 	}
753 	kerr = khttp_puts(gw_trans->gw_req, div_end);
754 	if (kerr != KCGI_OK)
755 		return gw_kcgi_error(kerr);
756 
757 	error = gw_briefs(gw_trans);
758 	if (error)
759 		return error;
760 
761 	tags = gw_get_repo_tags(gw_trans, NULL, D_MAXSLCOMMDISP, TAGBRIEF);
762 	heads = gw_get_repo_heads(gw_trans);
763 
764 	if (tags != NULL && strcmp(tags, "") != 0) {
765 		if ((asprintf(&tags_html, summary_tags,
766 		    tags)) == -1)
767 			return got_error_from_errno("asprintf");
768 		kerr = khttp_puts(gw_trans->gw_req, tags_html);
769 		free(tags_html);
770 		free(tags);
771 		if (kerr != KCGI_OK)
772 			return gw_kcgi_error(kerr);
773 	}
774 
775 	if (heads != NULL && strcmp(heads, "") != 0) {
776 		if ((asprintf(&heads_html, summary_heads,
777 		    heads)) == -1)
778 			return got_error_from_errno("asprintf");
779 		kerr = khttp_puts(gw_trans->gw_req, heads_html);
780 		free(heads_html);
781 		free(heads);
782 		if (kerr != KCGI_OK)
783 			return gw_kcgi_error(kerr);
784 	}
785 	return error;
786 }
787 
788 static const struct got_error *
789 gw_tree(struct gw_trans *gw_trans)
790 {
791 	const struct got_error *error = NULL;
792 	struct gw_header *header = NULL;
793 	char *tree = NULL, *tree_html = NULL, *tree_html_disp = NULL;
794 	enum kcgi_err kerr;
795 
796 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
797 		return got_error_from_errno("pledge");
798 
799 	if ((header = gw_init_header()) == NULL)
800 		return got_error_from_errno("malloc");
801 
802 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
803 	if (error)
804 		return error;
805 
806 	error = gw_get_header(gw_trans, header, 1);
807 	if (error)
808 		return error;
809 
810 	tree_html = gw_get_repo_tree(gw_trans);
811 
812 	if (tree_html == NULL) {
813 		tree_html = strdup("");
814 		if (tree_html == NULL) {
815 			error = got_error_from_errno("strdup");
816 			goto done;
817 		}
818 	}
819 
820 	if ((asprintf(&tree_html_disp, tree_header,
821 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
822 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
823 	    tree_html)) == -1)
824 		return got_error_from_errno("asprintf");
825 
826 	if ((asprintf(&tree, tree_wrapper, tree_html_disp)) == -1)
827 		return got_error_from_errno("asprintf");
828 
829 	kerr = khttp_puts(gw_trans->gw_req, tree);
830 	if (kerr != KCGI_OK)
831 		error = gw_kcgi_error(kerr);
832 done:
833 	got_ref_list_free(&header->refs);
834 	gw_free_headers(header);
835 	free(tree_html_disp);
836 	free(tree_html);
837 	free(tree);
838 	return error;
839 }
840 
841 static const struct got_error *
842 gw_tag(struct gw_trans *gw_trans)
843 {
844 	const struct got_error *error = NULL;
845 	struct gw_header *header = NULL;
846 	char *tag = NULL, *tag_html = NULL, *tag_html_disp = NULL;
847 	enum kcgi_err kerr;
848 
849 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
850 		return got_error_from_errno("pledge");
851 
852 	if ((header = gw_init_header()) == NULL)
853 		return got_error_from_errno("malloc");
854 
855 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
856 	if (error)
857 		return error;
858 
859 	error = gw_get_header(gw_trans, header, 1);
860 	if (error)
861 		return error;
862 
863 	tag_html = gw_get_repo_tags(gw_trans, header, 1, TAGFULL);
864 
865 	if (tag_html == NULL) {
866 		tag_html = strdup("");
867 		if (tag_html == NULL) {
868 			error = got_error_from_errno("strdup");
869 			goto done;
870 		}
871 	}
872 
873 	if ((asprintf(&tag_html_disp, tag_header,
874 	    gw_gen_commit_header(header->commit_id, header->refs_str),
875 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
876 	    tag_html)) == -1)
877 		return got_error_from_errno("asprintf");
878 
879 	if ((asprintf(&tag, tag_wrapper, tag_html_disp)) == -1)
880 		return got_error_from_errno("asprintf");
881 
882 	kerr = khttp_puts(gw_trans->gw_req, tag);
883 	if (kerr != KCGI_OK)
884 		error = gw_kcgi_error(kerr);
885 done:
886 	got_ref_list_free(&header->refs);
887 	gw_free_headers(header);
888 	free(tag_html_disp);
889 	free(tag_html);
890 	free(tag);
891 	return error;
892 }
893 
894 static const struct got_error *
895 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
896 {
897 	const struct got_error *error = NULL;
898 	DIR *dt;
899 	char *dir_test;
900 	int opened = 0;
901 
902 	if ((asprintf(&dir_test, "%s/%s/%s",
903 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
904 	    GOTWEB_GIT_DIR)) == -1)
905 		return got_error_from_errno("asprintf");
906 
907 	dt = opendir(dir_test);
908 	if (dt == NULL) {
909 		free(dir_test);
910 	} else {
911 		gw_dir->path = strdup(dir_test);
912 		opened = 1;
913 		goto done;
914 	}
915 
916 	if ((asprintf(&dir_test, "%s/%s/%s",
917 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
918 	    GOTWEB_GOT_DIR)) == -1)
919 		return got_error_from_errno("asprintf");
920 
921 	dt = opendir(dir_test);
922 	if (dt == NULL)
923 		free(dir_test);
924 	else {
925 		opened = 1;
926 		error = got_error(GOT_ERR_NOT_GIT_REPO);
927 		goto errored;
928 	}
929 
930 	if ((asprintf(&dir_test, "%s/%s",
931 	    gw_trans->gw_conf->got_repos_path, gw_dir->name)) == -1)
932 		return got_error_from_errno("asprintf");
933 
934 	gw_dir->path = strdup(dir_test);
935 
936 done:
937 	gw_dir->description = gw_get_repo_description(gw_trans,
938 	    gw_dir->path);
939 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
940 	gw_dir->age = gw_get_repo_age(gw_trans, gw_dir->path, "refs/heads",
941 	    TM_DIFF);
942 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
943 
944 errored:
945 	free(dir_test);
946 	if (opened)
947 		closedir(dt);
948 	return error;
949 }
950 
951 static const struct got_error *
952 gw_load_got_paths(struct gw_trans *gw_trans)
953 {
954 	const struct got_error *error = NULL;
955 	DIR *d;
956 	struct dirent **sd_dent;
957 	struct gw_dir *gw_dir;
958 	struct stat st;
959 	unsigned int d_cnt, d_i;
960 
961 	d = opendir(gw_trans->gw_conf->got_repos_path);
962 	if (d == NULL) {
963 		error = got_error_from_errno2("opendir",
964 		    gw_trans->gw_conf->got_repos_path);
965 		return error;
966 	}
967 
968 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
969 	    alphasort);
970 	if (d_cnt == -1) {
971 		error = got_error_from_errno2("scandir",
972 		    gw_trans->gw_conf->got_repos_path);
973 		return error;
974 	}
975 
976 	for (d_i = 0; d_i < d_cnt; d_i++) {
977 		if (gw_trans->gw_conf->got_max_repos > 0 &&
978 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
979 			break; /* account for parent and self */
980 
981 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
982 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
983 			continue;
984 
985 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
986 			return got_error_from_errno("gw_dir malloc");
987 
988 		error = gw_load_got_path(gw_trans, gw_dir);
989 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
990 			continue;
991 		else if (error)
992 			return error;
993 
994 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
995 		    !got_path_dir_is_empty(gw_dir->path)) {
996 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
997 			    entry);
998 			gw_trans->repos_total++;
999 		}
1000 	}
1001 
1002 	closedir(d);
1003 	return error;
1004 }
1005 
1006 static const struct got_error *
1007 gw_parse_querystring(struct gw_trans *gw_trans)
1008 {
1009 	const struct got_error *error = NULL;
1010 	struct kpair *p;
1011 	struct gw_query_action *action = NULL;
1012 	unsigned int i;
1013 
1014 	if (gw_trans->gw_req->fieldnmap[0]) {
1015 		error = got_error_from_errno("bad parse");
1016 		return error;
1017 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
1018 		/* define gw_trans->repo_path */
1019 		if ((asprintf(&gw_trans->repo_name, "%s", p->parsed.s)) == -1)
1020 			return got_error_from_errno("asprintf");
1021 
1022 		if ((asprintf(&gw_trans->repo_path, "%s/%s",
1023 		    gw_trans->gw_conf->got_repos_path, p->parsed.s)) == -1)
1024 			return got_error_from_errno("asprintf");
1025 
1026 		/* get action and set function */
1027 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
1028 			for (i = 0; i < nitems(gw_query_funcs); i++) {
1029 				action = &gw_query_funcs[i];
1030 				if (action->func_name == NULL)
1031 					continue;
1032 
1033 				if (strcmp(action->func_name,
1034 				    p->parsed.s) == 0) {
1035 					gw_trans->action = i;
1036 					if ((asprintf(&gw_trans->action_name,
1037 					    "%s", action->func_name)) == -1)
1038 						return
1039 						    got_error_from_errno(
1040 						    "asprintf");
1041 
1042 					break;
1043 				}
1044 
1045 				action = NULL;
1046 			}
1047 
1048  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
1049 			if ((asprintf(&gw_trans->commit, "%s",
1050 			    p->parsed.s)) == -1)
1051 				return got_error_from_errno("asprintf");
1052 
1053 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
1054 			if ((asprintf(&gw_trans->repo_file, "%s",
1055 			    p->parsed.s)) == -1)
1056 				return got_error_from_errno("asprintf");
1057 
1058 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER]))
1059 			if ((asprintf(&gw_trans->repo_folder, "%s",
1060 			    p->parsed.s)) == -1)
1061 				return got_error_from_errno("asprintf");
1062 
1063 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
1064 			if ((asprintf(&gw_trans->headref, "%s",
1065 			    p->parsed.s)) == -1)
1066 				return got_error_from_errno("asprintf");
1067 
1068 		if (action == NULL) {
1069 			error = got_error_from_errno("invalid action");
1070 			return error;
1071 		}
1072 		if ((gw_trans->gw_dir =
1073 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
1074 			return got_error_from_errno("gw_dir malloc");
1075 
1076 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
1077 		if (error)
1078 			return error;
1079 	} else
1080 		gw_trans->action = GW_INDEX;
1081 
1082 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
1083 		gw_trans->page = p->parsed.i;
1084 
1085 	/* if (gw_trans->action == GW_RAW) */
1086 	/* 	gw_trans->mime = KMIME_TEXT_PLAIN; */
1087 
1088 	return error;
1089 }
1090 
1091 static struct gw_dir *
1092 gw_init_gw_dir(char *dir)
1093 {
1094 	struct gw_dir *gw_dir;
1095 
1096 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
1097 		return NULL;
1098 
1099 	if ((asprintf(&gw_dir->name, "%s", dir)) == -1)
1100 		return NULL;
1101 
1102 	return gw_dir;
1103 }
1104 
1105 static const struct got_error *
1106 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
1107 {
1108 	enum kcgi_err kerr;
1109 
1110 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1111 	if (kerr != KCGI_OK)
1112 		return gw_kcgi_error(kerr);
1113 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1114 	    khttps[code]);
1115 	if (kerr != KCGI_OK)
1116 		return gw_kcgi_error(kerr);
1117 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1118 	    kmimetypes[mime]);
1119 	if (kerr != KCGI_OK)
1120 		return gw_kcgi_error(kerr);
1121 	kerr = khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
1122 	if (kerr != KCGI_OK)
1123 		return gw_kcgi_error(kerr);
1124 	kerr = khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1125 	if (kerr != KCGI_OK)
1126 		return gw_kcgi_error(kerr);
1127 	kerr = khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
1128 	if (kerr != KCGI_OK)
1129 		return gw_kcgi_error(kerr);
1130 
1131 	kerr = khttp_body(gw_trans->gw_req);
1132 	return gw_kcgi_error(kerr);
1133 }
1134 
1135 static const struct got_error *
1136 gw_display_index(struct gw_trans *gw_trans, const struct got_error *err)
1137 {
1138 	enum kcgi_err kerr;
1139 
1140 	gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1141 	kerr = khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1142 
1143 	if (err)
1144 		kerr = khttp_puts(gw_trans->gw_req, err->msg);
1145 	else
1146 		kerr = khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1147 		    gw_query_funcs[gw_trans->action].template);
1148 	if (kerr != KCGI_OK)
1149 		return gw_kcgi_error(kerr);
1150 
1151 	kerr = khtml_close(gw_trans->gw_html_req);
1152 	return gw_kcgi_error(kerr);
1153 }
1154 
1155 static int
1156 gw_template(size_t key, void *arg)
1157 {
1158 	const struct got_error *error = NULL;
1159 	struct gw_trans *gw_trans = arg;
1160 	char *gw_got_link, *gw_site_link;
1161 	char *site_owner_name, *site_owner_name_h;
1162 
1163 	switch (key) {
1164 	case (TEMPL_HEAD):
1165 		khttp_puts(gw_trans->gw_req, head);
1166 		break;
1167 	case(TEMPL_HEADER):
1168 		gw_got_link = gw_get_got_link(gw_trans);
1169 		if (gw_got_link != NULL)
1170 			khttp_puts(gw_trans->gw_req, gw_got_link);
1171 
1172 		free(gw_got_link);
1173 		break;
1174 	case (TEMPL_SITEPATH):
1175 		gw_site_link = gw_get_site_link(gw_trans);
1176 		if (gw_site_link != NULL)
1177 			khttp_puts(gw_trans->gw_req, gw_site_link);
1178 
1179 		free(gw_site_link);
1180 		break;
1181 	case(TEMPL_TITLE):
1182 		if (gw_trans->gw_conf->got_site_name != NULL)
1183 			khtml_puts(gw_trans->gw_html_req,
1184 			    gw_trans->gw_conf->got_site_name);
1185 
1186 		break;
1187 	case (TEMPL_SEARCH):
1188 		khttp_puts(gw_trans->gw_req, search);
1189 		break;
1190 	case(TEMPL_SITEOWNER):
1191 		if (gw_trans->gw_conf->got_site_owner != NULL &&
1192 		    gw_trans->gw_conf->got_show_site_owner) {
1193 			site_owner_name =
1194 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
1195 			if ((asprintf(&site_owner_name_h, site_owner,
1196 			    site_owner_name))
1197 			    == -1)
1198 				return 0;
1199 
1200 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
1201 			free(site_owner_name);
1202 			free(site_owner_name_h);
1203 		}
1204 		break;
1205 	case(TEMPL_CONTENT):
1206 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1207 		if (error)
1208 			khttp_puts(gw_trans->gw_req, error->msg);
1209 		break;
1210 	default:
1211 		return 0;
1212 	}
1213 	return 1;
1214 }
1215 
1216 static char *
1217 gw_gen_commit_header(char *str1, char *str2)
1218 {
1219 	char *return_html = NULL, *ref_str = NULL;
1220 
1221 	if (strcmp(str2, "") != 0) {
1222 		if ((asprintf(&ref_str, "(%s)", str2)) == -1) {
1223 			return_html = strdup("");
1224 			return return_html;
1225 		}
1226 	} else
1227 		ref_str = strdup("");
1228 
1229 
1230 	if ((asprintf(&return_html, header_commit_html, str1, ref_str)) == -1)
1231 		return_html = strdup("");
1232 
1233 	free(ref_str);
1234 	return return_html;
1235 }
1236 
1237 static char *
1238 gw_gen_diff_header(char *str1, char *str2)
1239 {
1240 	char *return_html = NULL;
1241 
1242 	if ((asprintf(&return_html, header_diff_html, str1, str2)) == -1)
1243 		return_html = strdup("");
1244 
1245 	return return_html;
1246 }
1247 
1248 static char *
1249 gw_gen_author_header(char *str)
1250 {
1251 	char *return_html = NULL;
1252 
1253 	if ((asprintf(&return_html, header_author_html, str)) == -1)
1254 		return_html = strdup("");
1255 
1256 	return return_html;
1257 }
1258 
1259 static char *
1260 gw_gen_committer_header(char *str)
1261 {
1262 	char *return_html = NULL;
1263 
1264 	if ((asprintf(&return_html, header_committer_html, str)) == -1)
1265 		return_html = strdup("");
1266 
1267 	return return_html;
1268 }
1269 
1270 static char *
1271 gw_gen_age_header(char *str)
1272 {
1273 	char *return_html = NULL;
1274 
1275 	if ((asprintf(&return_html, header_age_html, str)) == -1)
1276 		return_html = strdup("");
1277 
1278 	return return_html;
1279 }
1280 
1281 static char *
1282 gw_gen_commit_msg_header(char *str)
1283 {
1284 	char *return_html = NULL;
1285 
1286 	if ((asprintf(&return_html, header_commit_msg_html, str)) == -1)
1287 		return_html = strdup("");
1288 
1289 	return return_html;
1290 }
1291 
1292 static char *
1293 gw_gen_tree_header(char *str)
1294 {
1295 	char *return_html = NULL;
1296 
1297 	if ((asprintf(&return_html, header_tree_html, str)) == -1)
1298 		return_html = strdup("");
1299 
1300 	return return_html;
1301 }
1302 
1303 static char *
1304 gw_get_repo_description(struct gw_trans *gw_trans, char *dir)
1305 {
1306 	FILE *f;
1307 	char *description = NULL, *d_file = NULL;
1308 	unsigned int len;
1309 
1310 	if (gw_trans->gw_conf->got_show_repo_description == false)
1311 		goto err;
1312 
1313 	if ((asprintf(&d_file, "%s/description", dir)) == -1)
1314 		goto err;
1315 
1316 	if ((f = fopen(d_file, "r")) == NULL)
1317 		goto err;
1318 
1319 	fseek(f, 0, SEEK_END);
1320 	len = ftell(f) + 1;
1321 	fseek(f, 0, SEEK_SET);
1322 	if ((description = calloc(len, sizeof(char *))) == NULL)
1323 		goto err;
1324 
1325 	fread(description, 1, len, f);
1326 	fclose(f);
1327 	free(d_file);
1328 	return description;
1329 err:
1330 	if ((asprintf(&description, "%s", "")) == -1)
1331 		return NULL;
1332 
1333 	return description;
1334 }
1335 
1336 static char *
1337 gw_get_time_str(time_t committer_time, int ref_tm)
1338 {
1339 	struct tm tm;
1340 	time_t diff_time;
1341 	char *years = "years ago", *months = "months ago";
1342 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1343 	char *minutes = "minutes ago", *seconds = "seconds ago";
1344 	char *now = "right now";
1345 	char *repo_age, *s;
1346 	char datebuf[29];
1347 
1348 	switch (ref_tm) {
1349 	case TM_DIFF:
1350 		diff_time = time(NULL) - committer_time;
1351 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1352 			if ((asprintf(&repo_age, "%lld %s",
1353 			    (diff_time / 60 / 60 / 24 / 365), years)) == -1)
1354 				return NULL;
1355 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1356 			if ((asprintf(&repo_age, "%lld %s",
1357 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1358 			    months)) == -1)
1359 				return NULL;
1360 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1361 			if ((asprintf(&repo_age, "%lld %s",
1362 			    (diff_time / 60 / 60 / 24 / 7), weeks)) == -1)
1363 				return NULL;
1364 		} else if (diff_time > 60 * 60 * 24 * 2) {
1365 			if ((asprintf(&repo_age, "%lld %s",
1366 			    (diff_time / 60 / 60 / 24), days)) == -1)
1367 				return NULL;
1368 		} else if (diff_time > 60 * 60 * 2) {
1369 			if ((asprintf(&repo_age, "%lld %s",
1370 			    (diff_time / 60 / 60), hours)) == -1)
1371 				return NULL;
1372 		} else if (diff_time > 60 * 2) {
1373 			if ((asprintf(&repo_age, "%lld %s", (diff_time / 60),
1374 			    minutes)) == -1)
1375 				return NULL;
1376 		} else if (diff_time > 2) {
1377 			if ((asprintf(&repo_age, "%lld %s", diff_time,
1378 			    seconds)) == -1)
1379 				return NULL;
1380 		} else {
1381 			if ((asprintf(&repo_age, "%s", now)) == -1)
1382 				return NULL;
1383 		}
1384 		break;
1385 	case TM_LONG:
1386 		if (gmtime_r(&committer_time, &tm) == NULL)
1387 			return NULL;
1388 
1389 		s = asctime_r(&tm, datebuf);
1390 		if (s == NULL)
1391 			return NULL;
1392 
1393 		if ((asprintf(&repo_age, "%s UTC", datebuf)) == -1)
1394 			return NULL;
1395 		break;
1396 	}
1397 	return repo_age;
1398 }
1399 
1400 static char *
1401 gw_get_repo_age(struct gw_trans *gw_trans, char *dir, char *repo_ref,
1402     int ref_tm)
1403 {
1404 	const struct got_error *error = NULL;
1405 	struct got_object_id *id = NULL;
1406 	struct got_repository *repo = NULL;
1407 	struct got_commit_object *commit = NULL;
1408 	struct got_reflist_head refs;
1409 	struct got_reflist_entry *re;
1410 	struct got_reference *head_ref;
1411 	int is_head = 0;
1412 	time_t committer_time = 0, cmp_time = 0;
1413 	const char *refname;
1414 	char *repo_age = NULL;
1415 
1416 	SIMPLEQ_INIT(&refs);
1417 
1418 	if (repo_ref == NULL)
1419 		return NULL;
1420 
1421 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1422 		is_head = 1;
1423 
1424 	if (gw_trans->gw_conf->got_show_repo_age == false) {
1425 		if ((asprintf(&repo_age, "")) == -1)
1426 			return NULL;
1427 		return repo_age;
1428 	}
1429 
1430 	error = got_repo_open(&repo, dir, NULL);
1431 	if (error)
1432 		goto err;
1433 
1434 	if (is_head)
1435 		error = got_ref_list(&refs, repo, "refs/heads",
1436 		    got_ref_cmp_by_name, NULL);
1437 	else
1438 		error = got_ref_list(&refs, repo, repo_ref,
1439 		    got_ref_cmp_by_name, NULL);
1440 	if (error)
1441 		goto err;
1442 
1443 	SIMPLEQ_FOREACH(re, &refs, entry) {
1444 		if (is_head)
1445 			refname = strdup(repo_ref);
1446 		else
1447 			refname = got_ref_get_name(re->ref);
1448 		error = got_ref_open(&head_ref, repo, refname, 0);
1449 		if (error)
1450 			goto err;
1451 
1452 		error = got_ref_resolve(&id, repo, head_ref);
1453 		got_ref_close(head_ref);
1454 		if (error)
1455 			goto err;
1456 
1457 		error = got_object_open_as_commit(&commit, repo, id);
1458 		if (error)
1459 			goto err;
1460 
1461 		committer_time =
1462 		    got_object_commit_get_committer_time(commit);
1463 
1464 		if (cmp_time < committer_time)
1465 			cmp_time = committer_time;
1466 	}
1467 
1468 	if (cmp_time != 0) {
1469 		committer_time = cmp_time;
1470 		repo_age = gw_get_time_str(committer_time, ref_tm);
1471 	} else
1472 		if ((asprintf(&repo_age, "")) == -1)
1473 			return NULL;
1474 	got_ref_list_free(&refs);
1475 	free(id);
1476 	return repo_age;
1477 err:
1478 	if ((asprintf(&repo_age, "%s", error->msg)) == -1)
1479 		return NULL;
1480 
1481 	return repo_age;
1482 }
1483 
1484 static char *
1485 gw_get_diff(struct gw_trans *gw_trans, struct gw_header *header)
1486 {
1487 	const struct got_error *error;
1488 	FILE *f = NULL;
1489 	struct got_object_id *id1 = NULL, *id2 = NULL;
1490 	struct buf *diffbuf = NULL;
1491 	char *label1 = NULL, *label2 = NULL, *diff_html = NULL, *buf = NULL,
1492 	     *buf_color = NULL, *n_buf = NULL, *newline = NULL;
1493 	int obj_type;
1494 	size_t newsize;
1495 
1496 	f = got_opentemp();
1497 	if (f == NULL)
1498 		return NULL;
1499 
1500 	error = buf_alloc(&diffbuf, 0);
1501 	if (error)
1502 		return NULL;
1503 
1504 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
1505 	if (error)
1506 		goto done;
1507 
1508 	if (strncmp(header->parent_id, "/dev/null", 9) != 0) {
1509 		error = got_repo_match_object_id(&id1, &label1,
1510 			header->parent_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1511 		if (error)
1512 			goto done;
1513 	}
1514 
1515 	error = got_repo_match_object_id(&id2, &label2,
1516 	    header->commit_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1517 	if (error)
1518 		goto done;
1519 
1520 	error = got_object_get_type(&obj_type, header->repo, id2);
1521 	if (error)
1522 		goto done;
1523 	switch (obj_type) {
1524 	case GOT_OBJ_TYPE_BLOB:
1525 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL, 3, 0,
1526 		    header->repo, f);
1527 		break;
1528 	case GOT_OBJ_TYPE_TREE:
1529 		error = got_diff_objects_as_trees(id1, id2, "", "", 3, 0,
1530 		    header->repo, f);
1531 		break;
1532 	case GOT_OBJ_TYPE_COMMIT:
1533 		error = got_diff_objects_as_commits(id1, id2, 3, 0,
1534 		    header->repo, f);
1535 		break;
1536 	default:
1537 		error = got_error(GOT_ERR_OBJ_TYPE);
1538 	}
1539 
1540 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1541 		goto done;
1542 
1543 	fseek(f, 0, SEEK_SET);
1544 
1545 	while ((fgets(buf, 2048, f)) != NULL) {
1546 		n_buf = buf;
1547 		while (*n_buf == '\n')
1548 			n_buf++;
1549 		newline = strchr(n_buf, '\n');
1550 		if (newline)
1551 			*newline = ' ';
1552 
1553 		buf_color = gw_colordiff_line(gw_html_escape(n_buf));
1554 		if (buf_color == NULL)
1555 			continue;
1556 
1557 		error = buf_puts(&newsize, diffbuf, buf_color);
1558 		if (error)
1559 			return NULL;
1560 
1561 		error = buf_puts(&newsize, diffbuf, div_end);
1562 		if (error)
1563 			return NULL;
1564 	}
1565 
1566 	if (buf_len(diffbuf) > 0) {
1567 		error = buf_putc(diffbuf, '\0');
1568 		diff_html = strdup(buf_get(diffbuf));
1569 	}
1570 done:
1571 	fclose(f);
1572 	free(buf_color);
1573 	free(buf);
1574 	free(diffbuf);
1575 	free(label1);
1576 	free(label2);
1577 	free(id1);
1578 	free(id2);
1579 
1580 	if (error)
1581 		return NULL;
1582 	else
1583 		return diff_html;
1584 }
1585 
1586 static char *
1587 gw_get_repo_owner(struct gw_trans *gw_trans, char *dir)
1588 {
1589 	FILE *f;
1590 	char *owner = NULL, *d_file = NULL;
1591 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1592 	char *comp, *pos, *buf;
1593 	unsigned int i;
1594 
1595 	if (gw_trans->gw_conf->got_show_repo_owner == false)
1596 		goto err;
1597 
1598 	if ((asprintf(&d_file, "%s/config", dir)) == -1)
1599 		goto err;
1600 
1601 	if ((f = fopen(d_file, "r")) == NULL)
1602 		goto err;
1603 
1604 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1605 		goto err;
1606 
1607 	while ((fgets(buf, 128, f)) != NULL) {
1608 		if ((pos = strstr(buf, gotweb)) != NULL)
1609 			break;
1610 
1611 		if ((pos = strstr(buf, gitweb)) != NULL)
1612 			break;
1613 	}
1614 
1615 	if (pos == NULL)
1616 		goto err;
1617 
1618 	do {
1619 		fgets(buf, 128, f);
1620 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1621 
1622 	if (comp == NULL)
1623 		goto err;
1624 
1625 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1626 		goto err;
1627 
1628 	for (i = 0; i < 2; i++) {
1629 		owner = strsep(&buf, "\"");
1630 	}
1631 
1632 	if (owner == NULL)
1633 		goto err;
1634 
1635 	fclose(f);
1636 	free(d_file);
1637 	return owner;
1638 err:
1639 	if ((asprintf(&owner, "%s", "")) == -1)
1640 		return NULL;
1641 
1642 	return owner;
1643 }
1644 
1645 static char *
1646 gw_get_clone_url(struct gw_trans *gw_trans, char *dir)
1647 {
1648 	FILE *f;
1649 	char *url = NULL, *d_file = NULL;
1650 	unsigned int len;
1651 
1652 	if ((asprintf(&d_file, "%s/cloneurl", dir)) == -1)
1653 		return NULL;
1654 
1655 	if ((f = fopen(d_file, "r")) == NULL)
1656 		return NULL;
1657 
1658 	fseek(f, 0, SEEK_END);
1659 	len = ftell(f) + 1;
1660 	fseek(f, 0, SEEK_SET);
1661 
1662 	if ((url = calloc(len, sizeof(char *))) == NULL)
1663 		return NULL;
1664 
1665 	fread(url, 1, len, f);
1666 	fclose(f);
1667 	free(d_file);
1668 	return url;
1669 }
1670 
1671 static char *
1672 gw_get_repo_tags(struct gw_trans *gw_trans, struct gw_header *header, int limit,
1673     int tag_type)
1674 {
1675 	const struct got_error *error = NULL;
1676 	struct got_repository *repo = NULL;
1677 	struct got_reflist_head refs;
1678 	struct got_reflist_entry *re;
1679 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL,
1680 	     *age = NULL;
1681 	char *newline;
1682 	struct buf *diffbuf = NULL;
1683 	size_t newsize;
1684 
1685 	SIMPLEQ_INIT(&refs);
1686 
1687 	error = buf_alloc(&diffbuf, 0);
1688 	if (error)
1689 		return NULL;
1690 
1691 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1692 	if (error)
1693 		goto done;
1694 
1695 	error = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_tags, repo);
1696 	if (error)
1697 		goto done;
1698 
1699 	SIMPLEQ_FOREACH(re, &refs, entry) {
1700 		const char *refname;
1701 		char *refstr, *tag_commit0, *tag_commit, *id_str;
1702 		const char *tagger;
1703 		time_t tagger_time;
1704 		struct got_object_id *id;
1705 		struct got_tag_object *tag;
1706 
1707 		refname = got_ref_get_name(re->ref);
1708 		if (strncmp(refname, "refs/tags/", 10) != 0)
1709 			continue;
1710 		refname += 10;
1711 		refstr = got_ref_to_str(re->ref);
1712 		if (refstr == NULL) {
1713 			error = got_error_from_errno("got_ref_to_str");
1714 			goto done;
1715 		}
1716 
1717 		error = got_ref_resolve(&id, repo, re->ref);
1718 		if (error)
1719 			goto done;
1720 		error = got_object_open_as_tag(&tag, repo, id);
1721 		free(id);
1722 		if (error)
1723 			goto done;
1724 
1725 		tagger = got_object_tag_get_tagger(tag);
1726 		tagger_time = got_object_tag_get_tagger_time(tag);
1727 
1728 		error = got_object_id_str(&id_str,
1729 		    got_object_tag_get_object_id(tag));
1730 		if (error)
1731 			goto done;
1732 
1733 		tag_commit0 = strdup(got_object_tag_get_message(tag));
1734 
1735 		if (tag_commit0 == NULL) {
1736 			error = got_error_from_errno("strdup");
1737 			goto done;
1738 		}
1739 
1740 		tag_commit = tag_commit0;
1741 		while (*tag_commit == '\n')
1742 			tag_commit++;
1743 
1744 		switch (tag_type) {
1745 		case TAGBRIEF:
1746 			newline = strchr(tag_commit, '\n');
1747 			if (newline)
1748 				*newline = '\0';
1749 
1750 			if ((asprintf(&age, "%s", gw_get_time_str(tagger_time,
1751 			    TM_DIFF))) == -1) {
1752 				error = got_error_from_errno("asprintf");
1753 				goto done;
1754 			}
1755 
1756 			if ((asprintf(&tags_navs_disp, tags_navs,
1757 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
1758 			    id_str, gw_trans->repo_name, id_str,
1759 			    gw_trans->repo_name, id_str)) == -1) {
1760 				error = got_error_from_errno("asprintf");
1761 				goto done;
1762 			}
1763 
1764 			if ((asprintf(&tag_row, tags_row, age, refname,
1765 			    tag_commit, tags_navs_disp)) == -1) {
1766 				error = got_error_from_errno("asprintf");
1767 				goto done;
1768 			}
1769 
1770 			free(tags_navs_disp);
1771 			break;
1772 		case TAGFULL:
1773 			if ((asprintf(&age, "%s", gw_get_time_str(tagger_time,
1774 			    TM_LONG))) == -1) {
1775 				error = got_error_from_errno("asprintf");
1776 				goto done;
1777 			}
1778 			if ((asprintf(&tag_row, tag_info, age,
1779 			    gw_html_escape(tagger),
1780 			    gw_html_escape(tag_commit))) == -1) {
1781 				error = got_error_from_errno("asprintf");
1782 				goto done;
1783 			}
1784 			break;
1785 		default:
1786 			break;
1787 		}
1788 
1789 		got_object_tag_close(tag);
1790 
1791 		error = buf_puts(&newsize, diffbuf, tag_row);
1792 
1793 		free(id_str);
1794 		free(refstr);
1795 		free(age);
1796 		free(tag_commit0);
1797 		free(tag_row);
1798 
1799 		if (error || (limit && --limit == 0))
1800 			break;
1801 	}
1802 
1803 	if (buf_len(diffbuf) > 0) {
1804 		error = buf_putc(diffbuf, '\0');
1805 		tags = strdup(buf_get(diffbuf));
1806 	}
1807 done:
1808 	buf_free(diffbuf);
1809 	got_ref_list_free(&refs);
1810 	if (repo)
1811 		got_repo_close(repo);
1812 	if (error)
1813 		return NULL;
1814 	else
1815 		return tags;
1816 }
1817 
1818 static void
1819 gw_free_headers(struct gw_header *header)
1820 {
1821 	free(header->id);
1822 	free(header->path);
1823 	if (header->commit != NULL)
1824 		got_object_commit_close(header->commit);
1825 	if (header->repo)
1826 		got_repo_close(header->repo);
1827 	free(header->refs_str);
1828 	free(header->commit_id);
1829 	free(header->parent_id);
1830 	free(header->tree_id);
1831 	free(header->author);
1832 	free(header->committer);
1833 	free(header->commit_msg);
1834 }
1835 
1836 static struct gw_header *
1837 gw_init_header()
1838 {
1839 	struct gw_header *header;
1840 
1841 	header = malloc(sizeof(*header));
1842 	if (header == NULL)
1843 		return NULL;
1844 
1845 	header->repo = NULL;
1846 	header->commit = NULL;
1847 	header->id = NULL;
1848 	header->path = NULL;
1849 	SIMPLEQ_INIT(&header->refs);
1850 
1851 	return header;
1852 }
1853 
1854 static const struct got_error *
1855 gw_get_commits(struct gw_trans * gw_trans, struct gw_header *header,
1856     int limit)
1857 {
1858 	const struct got_error *error = NULL;
1859 	struct got_commit_graph *graph = NULL;
1860 
1861 	error = got_commit_graph_open(&graph, header->path, 0);
1862 	if (error)
1863 		goto done;
1864 
1865 	error = got_commit_graph_iter_start(graph, header->id, header->repo,
1866 	    NULL, NULL);
1867 	if (error)
1868 		goto done;
1869 
1870 	for (;;) {
1871 		error = got_commit_graph_iter_next(&header->id, graph,
1872 		    header->repo, NULL, NULL);
1873 		if (error) {
1874 			if (error->code == GOT_ERR_ITER_COMPLETED)
1875 				error = NULL;
1876 			goto done;
1877 		}
1878 		if (header->id == NULL)
1879 			goto done;
1880 
1881 		error = got_object_open_as_commit(&header->commit, header->repo,
1882 		    header->id);
1883 		if (error)
1884 			goto done;
1885 
1886 		error = gw_get_commit(gw_trans, header);
1887 		if (limit > 1) {
1888 			struct gw_header *n_header = NULL;
1889 			if ((n_header = gw_init_header()) == NULL)
1890 				error = got_error_from_errno("malloc");
1891 
1892 			n_header->refs_str = strdup(header->refs_str);
1893 			n_header->commit_id = strdup(header->commit_id);
1894 			n_header->parent_id = strdup(header->parent_id);
1895 			n_header->tree_id = strdup(header->tree_id);
1896 			n_header->author = strdup(header->author);
1897 			n_header->committer = strdup(header->committer);
1898 			n_header->commit_msg = strdup(header->commit_msg);
1899 			n_header->committer_time = header->committer_time;
1900 			TAILQ_INSERT_TAIL(&gw_trans->gw_headers, n_header,
1901 			    entry);
1902 		}
1903 		if (error || (limit && --limit == 0))
1904 			break;
1905 	}
1906 done:
1907 	if (graph)
1908 		got_commit_graph_close(graph);
1909 	return error;
1910 }
1911 
1912 static const struct got_error *
1913 gw_get_commit(struct gw_trans *gw_trans, struct gw_header *header)
1914 {
1915 	const struct got_error *error = NULL;
1916 	struct got_reflist_entry *re;
1917 	struct got_object_id *id2 = NULL;
1918 	struct got_object_qid *parent_id;
1919 	char *refs_str = NULL,
1920 	     *commit_msg = NULL, *commit_msg0;
1921 
1922 	/*print commit*/
1923 	SIMPLEQ_FOREACH(re, &header->refs, entry) {
1924 		char *s;
1925 		const char *name;
1926 		struct got_tag_object *tag = NULL;
1927 		int cmp;
1928 
1929 		name = got_ref_get_name(re->ref);
1930 		if (strcmp(name, GOT_REF_HEAD) == 0)
1931 			continue;
1932 		if (strncmp(name, "refs/", 5) == 0)
1933 			name += 5;
1934 		if (strncmp(name, "got/", 4) == 0)
1935 			continue;
1936 		if (strncmp(name, "heads/", 6) == 0)
1937 			name += 6;
1938 		if (strncmp(name, "remotes/", 8) == 0)
1939 			name += 8;
1940 		if (strncmp(name, "tags/", 5) == 0) {
1941 			error = got_object_open_as_tag(&tag, header->repo,
1942 			    re->id);
1943 			if (error) {
1944 				if (error->code != GOT_ERR_OBJ_TYPE)
1945 					continue;
1946 				/*
1947 				 * Ref points at something other
1948 				 * than a tag.
1949 				 */
1950 				error = NULL;
1951 				tag = NULL;
1952 			}
1953 		}
1954 		cmp = got_object_id_cmp(tag ?
1955 		    got_object_tag_get_object_id(tag) : re->id, header->id);
1956 		if (tag)
1957 			got_object_tag_close(tag);
1958 		if (cmp != 0)
1959 			continue;
1960 		s = refs_str;
1961 		if ((asprintf(&refs_str, "%s%s%s", s ? s : "",
1962 		    s ? ", " : "", name)) == -1) {
1963 			error = got_error_from_errno("asprintf");
1964 			free(s);
1965 			return error;
1966 		}
1967 		header->refs_str = strdup(refs_str);
1968 		free(s);
1969 	}
1970 
1971 	if (refs_str == NULL)
1972 		header->refs_str = strdup("");
1973 	free(refs_str);
1974 
1975 	error = got_object_id_str(&header->commit_id, header->id);
1976 	if (error)
1977 		return error;
1978 
1979 	error = got_object_id_str(&header->tree_id,
1980 	    got_object_commit_get_tree_id(header->commit));
1981 	if (error)
1982 		return error;
1983 
1984 	if (gw_trans->action == GW_DIFF) {
1985 		parent_id = SIMPLEQ_FIRST(
1986 		    got_object_commit_get_parent_ids(header->commit));
1987 		if (parent_id != NULL) {
1988 			id2 = got_object_id_dup(parent_id->id);
1989 			free (parent_id);
1990 			error = got_object_id_str(&header->parent_id, id2);
1991 			if (error)
1992 				return error;
1993 			free(id2);
1994 		} else
1995 			header->parent_id = strdup("/dev/null");
1996 	} else
1997 		header->parent_id = strdup("");
1998 
1999 	header->committer_time =
2000 	    got_object_commit_get_committer_time(header->commit);
2001 
2002 	if (gw_trans->action != GW_BRIEFS && gw_trans->action != GW_SUMMARY) {
2003 		header->author = strdup(
2004 	 	    gw_html_escape(got_object_commit_get_author(header->commit))
2005 		);
2006 	} else {
2007 		header->author = strdup(
2008 		    got_object_commit_get_author(header->commit)
2009 		);
2010 	}
2011 
2012 	header->committer = strdup(
2013 		gw_html_escape(got_object_commit_get_committer(header->commit))
2014 	);
2015 
2016 	error = got_object_commit_get_logmsg(&commit_msg0, header->commit);
2017 	if (error)
2018 		return error;
2019 
2020 	commit_msg = commit_msg0;
2021 	while (*commit_msg == '\n')
2022 		commit_msg++;
2023 
2024 	header->commit_msg = strdup(commit_msg);
2025 	free(commit_msg0);
2026 	return error;
2027 }
2028 
2029 static const struct got_error *
2030 gw_get_header(struct gw_trans *gw_trans, struct gw_header *header, int limit)
2031 {
2032 	const struct got_error *error = NULL;
2033 	char *in_repo_path = NULL;
2034 
2035 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
2036 	if (error)
2037 		return error;
2038 
2039 	if (gw_trans->commit == NULL) {
2040 		struct got_reference *head_ref;
2041 		error = got_ref_open(&head_ref, header->repo,
2042 		    gw_trans->headref, 0);
2043 		if (error)
2044 			return error;
2045 
2046 		error = got_ref_resolve(&header->id, header->repo, head_ref);
2047 		got_ref_close(head_ref);
2048 		if (error)
2049 			return error;
2050 
2051 		error = got_object_open_as_commit(&header->commit,
2052 		    header->repo, header->id);
2053 	} else {
2054 		struct got_reference *ref;
2055 		error = got_ref_open(&ref, header->repo, gw_trans->commit, 0);
2056 		if (error == NULL) {
2057 			int obj_type;
2058 			error = got_ref_resolve(&header->id, header->repo, ref);
2059 			got_ref_close(ref);
2060 			if (error)
2061 				return error;
2062 			error = got_object_get_type(&obj_type, header->repo,
2063 			    header->id);
2064 			if (error)
2065 				return error;
2066 			if (obj_type == GOT_OBJ_TYPE_TAG) {
2067 				struct got_tag_object *tag;
2068 				error = got_object_open_as_tag(&tag,
2069 				    header->repo, header->id);
2070 				if (error)
2071 					return error;
2072 				if (got_object_tag_get_object_type(tag) !=
2073 				    GOT_OBJ_TYPE_COMMIT) {
2074 					got_object_tag_close(tag);
2075 					error = got_error(GOT_ERR_OBJ_TYPE);
2076 					return error;
2077 				}
2078 				free(header->id);
2079 				header->id = got_object_id_dup(
2080 				    got_object_tag_get_object_id(tag));
2081 				if (header->id == NULL)
2082 					error = got_error_from_errno(
2083 					    "got_object_id_dup");
2084 				got_object_tag_close(tag);
2085 				if (error)
2086 					return error;
2087 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
2088 				error = got_error(GOT_ERR_OBJ_TYPE);
2089 				return error;
2090 			}
2091 			error = got_object_open_as_commit(&header->commit,
2092 			    header->repo, header->id);
2093 			if (error)
2094 				return error;
2095 		}
2096 		if (header->commit == NULL) {
2097 			error = got_repo_match_object_id_prefix(&header->id,
2098 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
2099 			    header->repo);
2100 			if (error)
2101 				return error;
2102 		}
2103 		error = got_repo_match_object_id_prefix(&header->id,
2104 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
2105 			    header->repo);
2106 	}
2107 
2108 	error = got_repo_map_path(&in_repo_path, header->repo,
2109 	    gw_trans->repo_path, 1);
2110 	if (error)
2111 		return error;
2112 
2113 	if (in_repo_path) {
2114 		header->path = strdup(in_repo_path);
2115 	}
2116 	free(in_repo_path);
2117 
2118 	error = got_ref_list(&header->refs, header->repo, NULL,
2119 	    got_ref_cmp_by_name, NULL);
2120 	if (error)
2121 		return error;
2122 
2123 	error = gw_get_commits(gw_trans, header, limit);
2124 	return error;
2125 }
2126 
2127 struct blame_line {
2128 	int annotated;
2129 	char *id_str;
2130 	char *committer;
2131 	char datebuf[11]; /* YYYY-MM-DD + NUL */
2132 };
2133 
2134 struct gw_blame_cb_args {
2135 	struct blame_line *lines;
2136 	int nlines;
2137 	int nlines_prec;
2138 	int lineno_cur;
2139 	off_t *line_offsets;
2140 	FILE *f;
2141 	struct got_repository *repo;
2142 	struct gw_trans *gw_trans;
2143 	struct buf *blamebuf;
2144 };
2145 
2146 static const struct got_error *
2147 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
2148 {
2149 	const struct got_error *err = NULL;
2150 	struct gw_blame_cb_args *a = arg;
2151 	struct blame_line *bline;
2152 	char *line = NULL;
2153 	size_t linesize = 0, newsize;
2154 	struct got_commit_object *commit = NULL;
2155 	off_t offset;
2156 	struct tm tm;
2157 	time_t committer_time;
2158 
2159 	if (nlines != a->nlines ||
2160 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
2161 		return got_error(GOT_ERR_RANGE);
2162 
2163 	if (lineno == -1)
2164 		return NULL; /* no change in this commit */
2165 
2166 	/* Annotate this line. */
2167 	bline = &a->lines[lineno - 1];
2168 	if (bline->annotated)
2169 		return NULL;
2170 	err = got_object_id_str(&bline->id_str, id);
2171 	if (err)
2172 		return err;
2173 
2174 	err = got_object_open_as_commit(&commit, a->repo, id);
2175 	if (err)
2176 		goto done;
2177 
2178 	bline->committer = strdup(got_object_commit_get_committer(commit));
2179 	if (bline->committer == NULL) {
2180 		err = got_error_from_errno("strdup");
2181 		goto done;
2182 	}
2183 
2184 	committer_time = got_object_commit_get_committer_time(commit);
2185 	if (localtime_r(&committer_time, &tm) == NULL)
2186 		return got_error_from_errno("localtime_r");
2187 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
2188 	    &tm) >= sizeof(bline->datebuf)) {
2189 		err = got_error(GOT_ERR_NO_SPACE);
2190 		goto done;
2191 	}
2192 	bline->annotated = 1;
2193 
2194 	/* Print lines annotated so far. */
2195 	bline = &a->lines[a->lineno_cur - 1];
2196 	if (!bline->annotated)
2197 		goto done;
2198 
2199 	offset = a->line_offsets[a->lineno_cur - 1];
2200 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
2201 		err = got_error_from_errno("fseeko");
2202 		goto done;
2203 	}
2204 
2205 	while (bline->annotated) {
2206 		char *smallerthan, *at, *nl, *committer, *blame_row = NULL,
2207 		     *line_escape = NULL;
2208 		size_t len;
2209 
2210 		if (getline(&line, &linesize, a->f) == -1) {
2211 			if (ferror(a->f))
2212 				err = got_error_from_errno("getline");
2213 			break;
2214 		}
2215 
2216 		committer = bline->committer;
2217 		smallerthan = strchr(committer, '<');
2218 		if (smallerthan && smallerthan[1] != '\0')
2219 			committer = smallerthan + 1;
2220 		at = strchr(committer, '@');
2221 		if (at)
2222 			*at = '\0';
2223 		len = strlen(committer);
2224 		if (len >= 9)
2225 			committer[8] = '\0';
2226 
2227 		nl = strchr(line, '\n');
2228 		if (nl)
2229 			*nl = '\0';
2230 
2231 		if (strcmp(line, "") != 0)
2232 			line_escape = strdup(gw_html_escape(line));
2233 		else
2234 			line_escape = strdup("");
2235 
2236 		asprintf(&blame_row, blame_line, a->nlines_prec,
2237 		    a->lineno_cur, bline->id_str, bline->datebuf, committer,
2238 		    line_escape);
2239 		a->lineno_cur++;
2240 		err = buf_puts(&newsize, a->blamebuf, blame_row);
2241 		if (err)
2242 			return err;
2243 
2244 		bline = &a->lines[a->lineno_cur - 1];
2245 		free(line_escape);
2246 		free(blame_row);
2247 	}
2248 done:
2249 	if (commit)
2250 		got_object_commit_close(commit);
2251 	free(line);
2252 	return err;
2253 }
2254 
2255 static char*
2256 gw_get_file_blame(struct gw_trans *gw_trans)
2257 {
2258 	const struct got_error *error = NULL;
2259 	struct got_repository *repo = NULL;
2260 	struct got_object_id *obj_id = NULL;
2261 	struct got_object_id *commit_id = NULL;
2262 	struct got_blob_object *blob = NULL;
2263 	char *blame_html = NULL, *path = NULL, *in_repo_path = NULL,
2264 	     *folder = NULL;
2265 	struct gw_blame_cb_args bca;
2266 	int i, obj_type;
2267 	size_t filesize;
2268 
2269 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2270 	if (error)
2271 		goto done;
2272 
2273 	if (gw_trans->repo_folder != NULL) {
2274 		if ((asprintf(&folder, "%s/", gw_trans->repo_folder)) == -1) {
2275 			error = got_error_from_errno("asprintf");
2276 			goto done;
2277 		}
2278 	} else
2279 		folder = strdup("");
2280 
2281 	if ((asprintf(&path, "%s%s", folder, gw_trans->repo_file)) == -1) {
2282 		error = got_error_from_errno("asprintf");
2283 		goto done;
2284 	}
2285 	free(folder);
2286 
2287 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
2288 	if (error)
2289 		goto done;
2290 
2291 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit,
2292 	    GOT_OBJ_TYPE_COMMIT, 1, repo);
2293 	if (error)
2294 		goto done;
2295 
2296 	error = got_object_id_by_path(&obj_id, repo, commit_id, in_repo_path);
2297 	if (error)
2298 		goto done;
2299 
2300 	if (obj_id == NULL) {
2301 		error = got_error(GOT_ERR_NO_OBJ);
2302 		goto done;
2303 	}
2304 
2305 	error = got_object_get_type(&obj_type, repo, obj_id);
2306 	if (error)
2307 		goto done;
2308 
2309 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
2310 		error = got_error(GOT_ERR_OBJ_TYPE);
2311 		goto done;
2312 	}
2313 
2314 	error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
2315 	if (error)
2316 		goto done;
2317 
2318 	error = buf_alloc(&bca.blamebuf, 0);
2319 	if (error)
2320 		goto done;
2321 
2322 	bca.f = got_opentemp();
2323 	if (bca.f == NULL) {
2324 		error = got_error_from_errno("got_opentemp");
2325 		goto done;
2326 	}
2327 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
2328 	    &bca.line_offsets, bca.f, blob);
2329 	if (error || bca.nlines == 0)
2330 		goto done;
2331 
2332 	/* Don't include \n at EOF in the blame line count. */
2333 	if (bca.line_offsets[bca.nlines - 1] == filesize)
2334 		bca.nlines--;
2335 
2336 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
2337 	if (bca.lines == NULL) {
2338 		error = got_error_from_errno("calloc");
2339 		goto done;
2340 	}
2341 	bca.lineno_cur = 1;
2342 	bca.nlines_prec = 0;
2343 	i = bca.nlines;
2344 	while (i > 0) {
2345 		i /= 10;
2346 		bca.nlines_prec++;
2347 	}
2348 	bca.repo = repo;
2349 	bca.gw_trans = gw_trans;
2350 
2351 	error = got_blame(in_repo_path, commit_id, repo, gw_blame_cb, &bca,
2352 	    NULL, NULL);
2353 	if (buf_len(bca.blamebuf) > 0) {
2354 		error = buf_putc(bca.blamebuf, '\0');
2355 		blame_html = strdup(buf_get(bca.blamebuf));
2356 	}
2357 done:
2358 	free(bca.blamebuf);
2359 	free(in_repo_path);
2360 	free(commit_id);
2361 	free(obj_id);
2362 	free(path);
2363 
2364 	if (blob)
2365 		error = got_object_blob_close(blob);
2366 	if (repo)
2367 		error = got_repo_close(repo);
2368 	if (error)
2369 		return NULL;
2370 	if (bca.lines) {
2371 		for (i = 0; i < bca.nlines; i++) {
2372 			struct blame_line *bline = &bca.lines[i];
2373 			free(bline->id_str);
2374 			free(bline->committer);
2375 		}
2376 		free(bca.lines);
2377 	}
2378 	free(bca.line_offsets);
2379 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
2380 		error = got_error_from_errno("fclose");
2381 	if (error)
2382 		return NULL;
2383 	else
2384 		return blame_html;
2385 }
2386 
2387 static char*
2388 gw_get_repo_tree(struct gw_trans *gw_trans)
2389 {
2390 	const struct got_error *error = NULL;
2391 	struct got_repository *repo = NULL;
2392 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
2393 	struct got_tree_object *tree = NULL;
2394 	struct buf *diffbuf = NULL;
2395 	size_t newsize;
2396 	char *tree_html = NULL, *path = NULL, *in_repo_path = NULL,
2397 	    *tree_row = NULL, *id_str;
2398 	int nentries, i;
2399 
2400 	error = buf_alloc(&diffbuf, 0);
2401 	if (error)
2402 		return NULL;
2403 
2404 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2405 	if (error)
2406 		goto done;
2407 
2408 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
2409 	if (error)
2410 		goto done;
2411 
2412 	if (gw_trans->repo_folder != NULL)
2413 		path = strdup(gw_trans->repo_folder);
2414 	else if (in_repo_path) {
2415 		free(path);
2416 		path = in_repo_path;
2417 	}
2418 
2419 	if (gw_trans->commit == NULL) {
2420 		struct got_reference *head_ref;
2421 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
2422 		if (error)
2423 			goto done;
2424 
2425 		error = got_ref_resolve(&commit_id, repo, head_ref);
2426 		got_ref_close(head_ref);
2427 
2428 	} else
2429 		error = got_repo_match_object_id(&commit_id, NULL,
2430 		    gw_trans->commit, GOT_OBJ_TYPE_COMMIT, 1, repo);
2431 	if (error)
2432 		goto done;
2433 
2434 	error = got_object_id_str(&gw_trans->commit, commit_id);
2435 	if (error)
2436 		goto done;
2437 
2438 	error = got_object_id_by_path(&tree_id, repo, commit_id, path);
2439 	if (error)
2440 		goto done;
2441 
2442 	error = got_object_open_as_tree(&tree, repo, tree_id);
2443 	if (error)
2444 		goto done;
2445 
2446 	nentries = got_object_tree_get_nentries(tree);
2447 
2448 	for (i = 0; i < nentries; i++) {
2449 		struct got_tree_entry *te;
2450 		const char *modestr = "";
2451 		char *id = NULL, *url_html = NULL;
2452 
2453 		te = got_object_tree_get_entry(tree, i);
2454 
2455 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
2456 		if (error)
2457 			goto done;
2458 
2459 		if ((asprintf(&id, "%s", id_str)) == -1) {
2460 			error = got_error_from_errno("asprintf");
2461 			free(id_str);
2462 			goto done;
2463 		}
2464 
2465 		mode_t mode = got_tree_entry_get_mode(te);
2466 
2467 		if (got_object_tree_entry_is_submodule(te))
2468 			modestr = "$";
2469 		else if (S_ISLNK(mode))
2470 			modestr = "@";
2471 		else if (S_ISDIR(mode))
2472 			modestr = "/";
2473 		else if (mode & S_IXUSR)
2474 			modestr = "*";
2475 
2476 		char *build_folder = NULL;
2477 		if (S_ISDIR(got_tree_entry_get_mode(te))) {
2478 			if (gw_trans->repo_folder != NULL) {
2479 				if ((asprintf(&build_folder, "%s/%s",
2480 				    gw_trans->repo_folder,
2481 				    got_tree_entry_get_name(te))) == -1) {
2482 					error =
2483 					    got_error_from_errno("asprintf");
2484 					goto done;
2485 				}
2486 			} else {
2487 				if (asprintf(&build_folder, "%s",
2488 				    got_tree_entry_get_name(te)) == -1)
2489 					goto done;
2490 			}
2491 
2492 			if ((asprintf(&url_html, folder_html,
2493 			    gw_trans->repo_name, gw_trans->action_name,
2494 			    gw_trans->commit, build_folder,
2495 			    got_tree_entry_get_name(te), modestr)) == -1) {
2496 				error = got_error_from_errno("asprintf");
2497 				goto done;
2498 			}
2499 		} else {
2500 			if (gw_trans->repo_folder != NULL) {
2501 				if ((asprintf(&build_folder, "%s",
2502 				    gw_trans->repo_folder)) == -1) {
2503 					error =
2504 					    got_error_from_errno("asprintf");
2505 					goto done;
2506 				}
2507 			} else
2508 				build_folder = strdup("");
2509 
2510 			if ((asprintf(&url_html, file_html, gw_trans->repo_name,
2511 			    "blame", gw_trans->commit,
2512 			    got_tree_entry_get_name(te), build_folder,
2513 			    got_tree_entry_get_name(te), modestr)) == -1) {
2514 				error = got_error_from_errno("asprintf");
2515 				goto done;
2516 			}
2517 		}
2518 		free(build_folder);
2519 
2520 		if (error)
2521 			goto done;
2522 
2523 		if ((asprintf(&tree_row, tree_line, url_html)) == -1) {
2524 			error = got_error_from_errno("asprintf");
2525 			goto done;
2526 		}
2527 		error = buf_puts(&newsize, diffbuf, tree_row);
2528 		if (error)
2529 			goto done;
2530 
2531 		free(id);
2532 		free(id_str);
2533 		free(url_html);
2534 		free(tree_row);
2535 	}
2536 
2537 	if (buf_len(diffbuf) > 0) {
2538 		error = buf_putc(diffbuf, '\0');
2539 		tree_html = strdup(buf_get(diffbuf));
2540 	}
2541 done:
2542 	if (tree)
2543 		got_object_tree_close(tree);
2544 	if (repo)
2545 		got_repo_close(repo);
2546 
2547 	free(in_repo_path);
2548 	free(tree_id);
2549 	free(diffbuf);
2550 	if (error)
2551 		return NULL;
2552 	else
2553 		return tree_html;
2554 }
2555 
2556 static char *
2557 gw_get_repo_heads(struct gw_trans *gw_trans)
2558 {
2559 	const struct got_error *error = NULL;
2560 	struct got_repository *repo = NULL;
2561 	struct got_reflist_head refs;
2562 	struct got_reflist_entry *re;
2563 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
2564 	struct buf *diffbuf = NULL;
2565 	size_t newsize;
2566 
2567 	SIMPLEQ_INIT(&refs);
2568 
2569 	error = buf_alloc(&diffbuf, 0);
2570 	if (error)
2571 		return NULL;
2572 
2573 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2574 	if (error)
2575 		goto done;
2576 
2577 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
2578 	    NULL);
2579 	if (error)
2580 		goto done;
2581 
2582 	SIMPLEQ_FOREACH(re, &refs, entry) {
2583 		char *refname;
2584 
2585 		refname = strdup(got_ref_get_name(re->ref));
2586 		if (refname == NULL) {
2587 			error = got_error_from_errno("got_ref_to_str");
2588 			goto done;
2589 		}
2590 
2591 		if (strncmp(refname, "refs/heads/", 11) != 0) {
2592 			free(refname);
2593 			continue;
2594 		}
2595 
2596 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path, refname,
2597 		    TM_DIFF);
2598 
2599 		if ((asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
2600 		    refname, gw_trans->repo_name, refname,
2601 		    gw_trans->repo_name, refname, gw_trans->repo_name,
2602 		    refname)) == -1) {
2603 			error = got_error_from_errno("asprintf");
2604 			goto done;
2605 		}
2606 
2607 		if (strncmp(refname, "refs/heads/", 11) == 0)
2608 			refname += 11;
2609 
2610 		if ((asprintf(&head_row, heads_row, age, refname,
2611 		    head_navs_disp)) == -1) {
2612 			error = got_error_from_errno("asprintf");
2613 			goto done;
2614 		}
2615 
2616 		error = buf_puts(&newsize, diffbuf, head_row);
2617 
2618 		free(head_navs_disp);
2619 		free(head_row);
2620 	}
2621 
2622 	if (buf_len(diffbuf) > 0) {
2623 		error = buf_putc(diffbuf, '\0');
2624 		heads = strdup(buf_get(diffbuf));
2625 	}
2626 done:
2627 	buf_free(diffbuf);
2628 	got_ref_list_free(&refs);
2629 	if (repo)
2630 		got_repo_close(repo);
2631 	if (error)
2632 		return NULL;
2633 	else
2634 		return heads;
2635 }
2636 
2637 static char *
2638 gw_get_got_link(struct gw_trans *gw_trans)
2639 {
2640 	char *link;
2641 
2642 	if ((asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
2643 	    gw_trans->gw_conf->got_logo)) == -1)
2644 		return NULL;
2645 
2646 	return link;
2647 }
2648 
2649 static char *
2650 gw_get_site_link(struct gw_trans *gw_trans)
2651 {
2652 	char *link, *repo = "", *action = "";
2653 
2654 	if (gw_trans->repo_name != NULL)
2655 		if ((asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
2656 		    "</a>", gw_trans->repo_name, gw_trans->repo_name)) == -1)
2657 			return NULL;
2658 
2659 	if (gw_trans->action_name != NULL)
2660 		if ((asprintf(&action, " / %s", gw_trans->action_name)) == -1)
2661 			return NULL;
2662 
2663 	if ((asprintf(&link, site_link, GOTWEB,
2664 	    gw_trans->gw_conf->got_site_link, repo, action)) == -1)
2665 		return NULL;
2666 
2667 	return link;
2668 }
2669 
2670 static char *
2671 gw_colordiff_line(char *buf)
2672 {
2673 	const struct got_error *error = NULL;
2674 	char *colorized_line = NULL, *div_diff_line_div = NULL, *color = NULL;
2675 	struct buf *diffbuf = NULL;
2676 	size_t newsize;
2677 
2678 	error = buf_alloc(&diffbuf, 0);
2679 	if (error)
2680 		return NULL;
2681 
2682 	if (buf == NULL)
2683 		return NULL;
2684 	if (strncmp(buf, "-", 1) == 0)
2685 		color = "diff_minus";
2686 	if (strncmp(buf, "+", 1) == 0)
2687 		color = "diff_plus";
2688 	if (strncmp(buf, "@@", 2) == 0)
2689 		color = "diff_chunk_header";
2690 	if (strncmp(buf, "@@", 2) == 0)
2691 		color = "diff_chunk_header";
2692 	if (strncmp(buf, "commit +", 8) == 0)
2693 		color = "diff_meta";
2694 	if (strncmp(buf, "commit -", 8) == 0)
2695 		color = "diff_meta";
2696 	if (strncmp(buf, "blob +", 6) == 0)
2697 		color = "diff_meta";
2698 	if (strncmp(buf, "blob -", 6) == 0)
2699 		color = "diff_meta";
2700 	if (strncmp(buf, "file +", 6) == 0)
2701 		color = "diff_meta";
2702 	if (strncmp(buf, "file -", 6) == 0)
2703 		color = "diff_meta";
2704 	if (strncmp(buf, "from:", 5) == 0)
2705 		color = "diff_author";
2706 	if (strncmp(buf, "via:", 4) == 0)
2707 		color = "diff_author";
2708 	if (strncmp(buf, "date:", 5) == 0)
2709 		color = "diff_date";
2710 
2711 	if ((asprintf(&div_diff_line_div, div_diff_line, color)) == -1)
2712 		return NULL;
2713 
2714 	error = buf_puts(&newsize, diffbuf, div_diff_line_div);
2715 	if (error)
2716 		return NULL;
2717 
2718 	error = buf_puts(&newsize, diffbuf, buf);
2719 	if (error)
2720 		return NULL;
2721 
2722 	if (buf_len(diffbuf) > 0) {
2723 		error = buf_putc(diffbuf, '\0');
2724 		colorized_line = strdup(buf_get(diffbuf));
2725 	}
2726 
2727 	free(diffbuf);
2728 	free(div_diff_line_div);
2729 	return colorized_line;
2730 }
2731 
2732 static char *
2733 gw_html_escape(const char *html)
2734 {
2735 	char *escaped_str = NULL, *buf;
2736 	char c[1];
2737 	size_t sz, i, buff_sz = 2048;
2738 
2739 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2740 		return NULL;
2741 
2742 	if (html == NULL)
2743 		return NULL;
2744 	else
2745 		if ((sz = strlen(html)) == 0)
2746 			return NULL;
2747 
2748 	/* only work with buff_sz */
2749 	if (buff_sz < sz)
2750 		sz = buff_sz;
2751 
2752 	for (i = 0; i < sz; i++) {
2753 		c[0] = html[i];
2754 		switch (c[0]) {
2755 		case ('>'):
2756 			strcat(buf, "&gt;");
2757 			break;
2758 		case ('&'):
2759 			strcat(buf, "&amp;");
2760 			break;
2761 		case ('<'):
2762 			strcat(buf, "&lt;");
2763 			break;
2764 		case ('"'):
2765 			strcat(buf, "&quot;");
2766 			break;
2767 		case ('\''):
2768 			strcat(buf, "&apos;");
2769 			break;
2770 		case ('\n'):
2771 			strcat(buf, "<br />");
2772 		default:
2773 			strcat(buf, &c[0]);
2774 			break;
2775 		}
2776 	}
2777 	asprintf(&escaped_str, "%s", buf);
2778 	free(buf);
2779 	return escaped_str;
2780 }
2781 
2782 int
2783 main(int argc, char *argv[])
2784 {
2785 	const struct got_error *error = NULL;
2786 	struct gw_trans *gw_trans;
2787 	struct gw_dir *dir = NULL, *tdir;
2788 	const char *page = "index";
2789 	int gw_malloc = 1;
2790 	enum kcgi_err kerr;
2791 
2792 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
2793 		errx(1, "malloc");
2794 
2795 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2796 		errx(1, "malloc");
2797 
2798 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2799 		errx(1, "malloc");
2800 
2801 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2802 		errx(1, "malloc");
2803 
2804 	kerr = khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX, &page, 1, 0);
2805 	if (kerr != KCGI_OK) {
2806 		error = gw_kcgi_error(kerr);
2807 		goto done;
2808 	}
2809 
2810 	if ((gw_trans->gw_conf =
2811 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2812 		gw_malloc = 0;
2813 		error = got_error_from_errno("malloc");
2814 		goto done;
2815 	}
2816 
2817 	TAILQ_INIT(&gw_trans->gw_dirs);
2818 	TAILQ_INIT(&gw_trans->gw_headers);
2819 
2820 	gw_trans->page = 0;
2821 	gw_trans->repos_total = 0;
2822 	gw_trans->repo_path = NULL;
2823 	gw_trans->commit = NULL;
2824 	gw_trans->headref = strdup(GOT_REF_HEAD);
2825 	gw_trans->mime = KMIME_TEXT_HTML;
2826 	gw_trans->gw_tmpl->key = gw_templs;
2827 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2828 	gw_trans->gw_tmpl->arg = gw_trans;
2829 	gw_trans->gw_tmpl->cb = gw_template;
2830 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2831 	if (error)
2832 		goto done;
2833 
2834 	error = gw_parse_querystring(gw_trans);
2835 	if (error)
2836 		goto done;
2837 
2838 	error = gw_display_index(gw_trans, error);
2839 done:
2840 	if (error) {
2841 		gw_trans->mime = KMIME_TEXT_PLAIN;
2842 		gw_trans->action = GW_ERR;
2843 		gw_display_index(gw_trans, error);
2844 	}
2845 	if (gw_malloc) {
2846 		free(gw_trans->gw_conf->got_repos_path);
2847 		free(gw_trans->gw_conf->got_site_name);
2848 		free(gw_trans->gw_conf->got_site_owner);
2849 		free(gw_trans->gw_conf->got_site_link);
2850 		free(gw_trans->gw_conf->got_logo);
2851 		free(gw_trans->gw_conf->got_logo_url);
2852 		free(gw_trans->gw_conf);
2853 		free(gw_trans->commit);
2854 		free(gw_trans->repo_path);
2855 		free(gw_trans->repo_name);
2856 		free(gw_trans->repo_file);
2857 		free(gw_trans->action_name);
2858 		free(gw_trans->headref);
2859 
2860 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
2861 			free(dir->name);
2862 			free(dir->description);
2863 			free(dir->age);
2864 			free(dir->url);
2865 			free(dir->path);
2866 			free(dir);
2867 		}
2868 
2869 	}
2870 
2871 	khttp_free(gw_trans->gw_req);
2872 	return EXIT_SUCCESS;
2873 }