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 <regex.h>
25 #include <stdarg.h>
26 #include <stdbool.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(dirs, gw_dir) gw_dirs;
58 	struct gw_dir		*gw_dir;
59 	struct gotweb_conf	*gw_conf;
60 	struct ktemplate	*gw_tmpl;
61 	struct khtmlreq		*gw_html_req;
62 	struct kreq		*gw_req;
63 	char			*repo_name;
64 	char			*repo_path;
65 	char			*commit;
66 	char			*repo_file;
67 	char			*repo_folder;
68 	char			*action_name;
69 	char			*headref;
70 	unsigned int		 action;
71 	unsigned int		 page;
72 	unsigned int		 repos_total;
73 	enum kmime		 mime;
74 };
75 
76 enum gw_key {
77 	KEY_ACTION,
78 	KEY_COMMIT_ID,
79 	KEY_FILE,
80 	KEY_FOLDER,
81 	KEY_HEADREF,
82 	KEY_PAGE,
83 	KEY_PATH,
84 	KEY__ZMAX
85 };
86 
87 struct gw_dir {
88 	TAILQ_ENTRY(gw_dir)	 entry;
89 	char			*name;
90 	char			*owner;
91 	char			*description;
92 	char			*url;
93 	char			*age;
94 	char			*path;
95 };
96 
97 enum gw_tmpl {
98 	TEMPL_HEAD,
99 	TEMPL_HEADER,
100 	TEMPL_SITEPATH,
101 	TEMPL_SITEOWNER,
102 	TEMPL_TITLE,
103 	TEMPL_SEARCH,
104 	TEMPL_CONTENT,
105 	TEMPL__MAX
106 };
107 
108 enum gw_ref_tm {
109 	TM_DIFF,
110 	TM_LONG,
111 };
112 
113 enum gw_logs {
114 	LOGBRIEF,
115 	LOGCOMMIT,
116 	LOGFULL,
117 	LOGTREE,
118 	LOGDIFF,
119 	LOGBLAME,
120 	LOGTAG,
121 };
122 
123 enum gw_tags {
124 	TAGBRIEF,
125 	TAGFULL,
126 };
127 
128 static const char *const gw_templs[TEMPL__MAX] = {
129 	"head",
130 	"header",
131 	"sitepath",
132 	"siteowner",
133 	"title",
134 	"search",
135 	"content",
136 };
137 
138 static const struct kvalid gw_keys[KEY__ZMAX] = {
139 	{ kvalid_stringne,	"action" },
140 	{ kvalid_stringne,	"commit" },
141 	{ kvalid_stringne,	"file" },
142 	{ kvalid_stringne,	"folder" },
143 	{ kvalid_stringne,	"headref" },
144 	{ kvalid_int,		"page" },
145 	{ kvalid_stringne,	"path" },
146 };
147 
148 int				 gw_get_repo_log_count(struct gw_trans *,
149 				    char *);
150 
151 static struct gw_dir		*gw_init_gw_dir(char *);
152 
153 static char			*gw_get_repo_description(struct gw_trans *,
154 				    char *);
155 static char			*gw_get_repo_owner(struct gw_trans *,
156 				    char *);
157 static char			*gw_get_time_str(time_t, int);
158 static char			*gw_get_repo_age(struct gw_trans *,
159 				    char *, char *, int);
160 static char			*gw_get_repo_log(struct gw_trans *,
161 				    const char *, char *, int, int);
162 static char			*gw_get_file_blame(struct gw_trans *, char *);
163 static char			*gw_get_repo_tree(struct gw_trans *, char *);
164 static char			*gw_get_repo_diff(struct gw_trans *, char *,
165 				    char *);
166 static char			*gw_get_repo_tags(struct gw_trans *, int, int);
167 static char			*gw_get_repo_heads(struct gw_trans *);
168 static char			*gw_get_clone_url(struct gw_trans *, char *);
169 static char			*gw_get_got_link(struct gw_trans *);
170 static char			*gw_get_site_link(struct gw_trans *);
171 static char			*gw_html_escape(const char *);
172 static char			*gw_colordiff_line(char *);
173 
174 static void			 gw_display_open(struct gw_trans *, enum khttp,
175 				    enum kmime);
176 static void			 gw_display_index(struct gw_trans *,
177 				    const struct got_error *);
178 
179 static int			 gw_template(size_t, void *);
180 
181 static const struct got_error*	 gw_apply_unveil(const char *, const char *);
182 static const struct got_error*	 cmp_tags(void *, int *,
183 				    struct got_reference *,
184 				    struct got_reference *);
185 static const struct got_error*	 gw_blame_cb(void *, int, int,
186 				    struct got_object_id *);
187 static const struct got_error*	 gw_load_got_paths(struct gw_trans *);
188 static const struct got_error*	 gw_load_got_path(struct gw_trans *,
189 				    struct gw_dir *);
190 static const struct got_error*	 gw_parse_querystring(struct gw_trans *);
191 static const struct got_error*	 match_logmsg(int *, struct got_object_id *,
192 				    struct got_commit_object *, regex_t *);
193 
194 static const struct got_error*	 gw_blame(struct gw_trans *);
195 static const struct got_error*	 gw_commit(struct gw_trans *);
196 static const struct got_error*	 gw_commitdiff(struct gw_trans *);
197 static const struct got_error*	 gw_index(struct gw_trans *);
198 static const struct got_error*	 gw_log(struct gw_trans *);
199 static const struct got_error*	 gw_raw(struct gw_trans *);
200 static const struct got_error*	 gw_logbriefs(struct gw_trans *);
201 static const struct got_error*	 gw_summary(struct gw_trans *);
202 static const struct got_error*	 gw_tag(struct gw_trans *);
203 static const struct got_error*	 gw_tree(struct gw_trans *);
204 
205 struct gw_query_action {
206 	unsigned int		 func_id;
207 	const char		*func_name;
208 	const struct got_error	*(*func_main)(struct gw_trans *);
209 	char			*template;
210 };
211 
212 enum gw_query_actions {
213 	GW_BLAME,
214 	GW_COMMIT,
215 	GW_COMMITDIFF,
216 	GW_ERR,
217 	GW_INDEX,
218 	GW_LOG,
219 	GW_RAW,
220 	GW_LOGBRIEFS,
221 	GW_SUMMARY,
222 	GW_TAG,
223 	GW_TREE,
224 };
225 
226 static struct gw_query_action gw_query_funcs[] = {
227 	{ GW_BLAME,	 "blame",	gw_blame,	"gw_tmpl/index.tmpl" },
228 	{ GW_COMMIT,	 "commit",	gw_commit,	"gw_tmpl/index.tmpl" },
229 	{ GW_COMMITDIFF, "commitdiff",	gw_commitdiff,	"gw_tmpl/index.tmpl" },
230 	{ GW_ERR,	 NULL,		NULL,		"gw_tmpl/index.tmpl" },
231 	{ GW_INDEX,	 "index",	gw_index,	"gw_tmpl/index.tmpl" },
232 	{ GW_LOG,	 "log",		gw_log,		"gw_tmpl/index.tmpl" },
233 	{ GW_RAW,	 "raw",		gw_raw,		"gw_tmpl/index.tmpl" },
234 	{ GW_LOGBRIEFS,	 "logbriefs",	gw_logbriefs,	"gw_tmpl/index.tmpl" },
235 	{ GW_SUMMARY,	 "summary",	gw_summary,	"gw_tmpl/index.tmpl" },
236 	{ GW_TAG,	 "tag",		gw_tag,		"gw_tmpl/index.tmpl" },
237 	{ GW_TREE,	 "tree",	gw_tree,	"gw_tmpl/index.tmpl" },
238 };
239 
240 static const struct got_error *
241 gw_apply_unveil(const char *repo_path, const char *repo_file)
242 {
243 	const struct got_error *err;
244 
245 	if (repo_path && repo_file) {
246 		char *full_path;
247 		if ((asprintf(&full_path, "%s/%s", repo_path, repo_file)) == -1)
248 			return got_error_from_errno("asprintf unveil");
249 		if (unveil(full_path, "r") != 0)
250 			return got_error_from_errno2("unveil", full_path);
251 	}
252 
253 	if (repo_path && unveil(repo_path, "r") != 0)
254 		return got_error_from_errno2("unveil", repo_path);
255 
256 	if (unveil("/tmp", "rwc") != 0)
257 		return got_error_from_errno2("unveil", "/tmp");
258 
259 	err = got_privsep_unveil_exec_helpers();
260 	if (err != NULL)
261 		return err;
262 
263 	if (unveil(NULL, NULL) != 0)
264 		return got_error_from_errno("unveil");
265 
266 	return NULL;
267 }
268 
269 static const struct got_error *
270 cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
271     struct got_reference *ref2)
272 {
273 	const struct got_error *err = NULL;
274 	struct got_repository *repo = arg;
275 	struct got_object_id *id1, *id2 = NULL;
276 	struct got_tag_object *tag1 = NULL, *tag2 = NULL;
277 	time_t time1, time2;
278 
279 	*cmp = 0;
280 
281 	err = got_ref_resolve(&id1, repo, ref1);
282 	if (err)
283 		return err;
284 	err = got_object_open_as_tag(&tag1, repo, id1);
285 	if (err)
286 		goto done;
287 
288 	err = got_ref_resolve(&id2, repo, ref2);
289 	if (err)
290 		goto done;
291 	err = got_object_open_as_tag(&tag2, repo, id2);
292 	if (err)
293 		goto done;
294 
295 	time1 = got_object_tag_get_tagger_time(tag1);
296 	time2 = got_object_tag_get_tagger_time(tag2);
297 
298 	/* Put latest tags first. */
299 	if (time1 < time2)
300 		*cmp = 1;
301 	else if (time1 > time2)
302 		*cmp = -1;
303 	else
304 		err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
305 done:
306 	free(id1);
307 	free(id2);
308 	if (tag1)
309 		got_object_tag_close(tag1);
310 	if (tag2)
311 		got_object_tag_close(tag2);
312 	return err;
313 }
314 
315 int
316 gw_get_repo_log_count(struct gw_trans *gw_trans, char *start_commit)
317 {
318 	const struct got_error *error;
319 	struct got_repository *repo = NULL;
320 	struct got_reflist_head refs;
321 	struct got_commit_object *commit = NULL;
322 	struct got_object_id *id = NULL;
323 	struct got_commit_graph *graph = NULL;
324 	char *in_repo_path = NULL, *path = NULL;
325 	int log_count = 0;
326 
327 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
328 	if (error)
329 		return 0;
330 
331 	SIMPLEQ_INIT(&refs);
332 
333 	if (start_commit == NULL) {
334 		struct got_reference *head_ref;
335 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
336 		if (error)
337 			goto done;
338 
339 		error = got_ref_resolve(&id, repo, head_ref);
340 		got_ref_close(head_ref);
341 		if (error)
342 			goto done;
343 
344 		error = got_object_open_as_commit(&commit, repo, id);
345 	} else {
346 		struct got_reference *ref;
347 		error = got_ref_open(&ref, repo, start_commit, 0);
348 		if (error == NULL) {
349 			int obj_type;
350 			error = got_ref_resolve(&id, repo, ref);
351 			got_ref_close(ref);
352 			if (error)
353 				goto done;
354 			error = got_object_get_type(&obj_type, repo, id);
355 			if (error)
356 				goto done;
357 			if (obj_type == GOT_OBJ_TYPE_TAG) {
358 				struct got_tag_object *tag;
359 				error = got_object_open_as_tag(&tag, repo, id);
360 				if (error)
361 					goto done;
362 				if (got_object_tag_get_object_type(tag) !=
363 				    GOT_OBJ_TYPE_COMMIT) {
364 					got_object_tag_close(tag);
365 					error = got_error(GOT_ERR_OBJ_TYPE);
366 					goto done;
367 				}
368 				free(id);
369 				id = got_object_id_dup(
370 				    got_object_tag_get_object_id(tag));
371 				if (id == NULL)
372 					error = got_error_from_errno(
373 					    "got_object_id_dup");
374 				got_object_tag_close(tag);
375 				if (error)
376 					goto done;
377 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
378 				error = got_error(GOT_ERR_OBJ_TYPE);
379 				goto done;
380 			}
381 			error = got_object_open_as_commit(&commit, repo, id);
382 			if (error)
383 				goto done;
384 		}
385 		if (commit == NULL) {
386 			error = got_repo_match_object_id_prefix(&id,
387 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
388 			if (error)
389 				goto done;
390 		}
391 		error = got_repo_match_object_id_prefix(&id,
392 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
393 			if (error)
394 				goto done;
395 	}
396 
397 	error = got_object_open_as_commit(&commit, repo, id);
398 	if (error)
399 		goto done;
400 
401 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
402 	if (error)
403 		goto done;
404 
405 	if (in_repo_path) {
406 		free(path);
407 		path = in_repo_path;
408 	}
409 
410 	error = got_ref_list(&refs, repo, NULL, got_ref_cmp_by_name, NULL);
411 	if (error)
412 		goto done;
413 
414 	error = got_commit_graph_open(&graph, path, 0);
415 	if (error)
416 		goto done;
417 
418 	error = got_commit_graph_iter_start(graph, id, repo, NULL, NULL);
419 	if (error)
420 		goto done;
421 
422 	for (;;) {
423 		error = got_commit_graph_iter_next(&id, graph, repo, NULL,
424 		    NULL);
425 		if (error) {
426 			if (error->code == GOT_ERR_ITER_COMPLETED)
427 				error = NULL;
428 			break;
429 		}
430 		if (id == NULL)
431 			break;
432 
433 		if (error)
434 			break;
435 		log_count++;
436 	}
437 done:
438 	free(in_repo_path);
439 	if (graph)
440 		got_commit_graph_close(graph);
441 	if (repo) {
442 		error = got_repo_close(repo);
443 		if (error)
444 			return 0;
445 	}
446 	if (error) {
447 		khttp_puts(gw_trans->gw_req, "Error: ");
448 		khttp_puts(gw_trans->gw_req, error->msg);
449 		return 0;
450 	} else
451 		return log_count;
452 }
453 
454 static const struct got_error *
455 gw_blame(struct gw_trans *gw_trans)
456 {
457 	const struct got_error *error = NULL;
458 
459 	char *log, *log_html;
460 
461 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
462 	if (error)
463 		return error;
464 
465 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGBLAME);
466 
467 	if (log != NULL && strcmp(log, "") != 0) {
468 		if ((asprintf(&log_html, log_blame, log)) == -1)
469 			return got_error_from_errno("asprintf");
470 		khttp_puts(gw_trans->gw_req, log_html);
471 		free(log_html);
472 		free(log);
473 	}
474 	return error;
475 }
476 
477 static const struct got_error *
478 gw_commit(struct gw_trans *gw_trans)
479 {
480 	const struct got_error *error = NULL;
481 	char *log, *log_html;
482 
483 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
484 	if (error)
485 		return error;
486 
487 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGCOMMIT);
488 
489 	if (log != NULL && strcmp(log, "") != 0) {
490 		if ((asprintf(&log_html, log_commit, log)) == -1)
491 			return got_error_from_errno("asprintf");
492 		khttp_puts(gw_trans->gw_req, log_html);
493 		free(log_html);
494 		free(log);
495 	}
496 	return error;
497 }
498 
499 static const struct got_error *
500 gw_commitdiff(struct gw_trans *gw_trans)
501 {
502 	const struct got_error *error = NULL;
503 	char *log, *log_html;
504 
505 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
506 	if (error)
507 		return error;
508 
509 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGDIFF);
510 
511 	if (log != NULL && strcmp(log, "") != 0) {
512 		if ((asprintf(&log_html, log_diff, log)) == -1)
513 			return got_error_from_errno("asprintf");
514 		khttp_puts(gw_trans->gw_req, log_html);
515 		free(log_html);
516 		free(log);
517 	}
518 	return error;
519 }
520 
521 static const struct got_error *
522 gw_index(struct gw_trans *gw_trans)
523 {
524 	const struct got_error *error = NULL;
525 	struct gw_dir *gw_dir = NULL;
526 	char *html, *navs, *next, *prev;
527 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
528 
529 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
530 	if (error)
531 		return error;
532 
533 	error = gw_load_got_paths(gw_trans);
534 	if (error)
535 		return error;
536 
537 	khttp_puts(gw_trans->gw_req, index_projects_header);
538 
539 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
540 		dir_c++;
541 
542 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
543 		if (gw_trans->page > 0 && (gw_trans->page *
544 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
545 			prev_disp++;
546 			continue;
547 		}
548 
549 		prev_disp++;
550 		if((asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
551 		    gw_dir->name, gw_dir->name)) == -1)
552 			return got_error_from_errno("asprintf");
553 
554 		if ((asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
555 		    gw_dir->description, gw_dir->owner, gw_dir->age,
556 		    navs)) == -1)
557 			return got_error_from_errno("asprintf");
558 
559 		khttp_puts(gw_trans->gw_req, html);
560 
561 		free(navs);
562 		free(html);
563 
564 		if (gw_trans->gw_conf->got_max_repos_display == 0)
565 			continue;
566 
567 		if (next_disp == gw_trans->gw_conf->got_max_repos_display)
568 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
569 		else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
570 		    (gw_trans->page > 0) &&
571 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
572 		    prev_disp == gw_trans->repos_total))
573 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
574 
575 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
576 		    (gw_trans->page > 0) &&
577 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
578 		    prev_disp == gw_trans->repos_total)) {
579 			if ((asprintf(&prev, nav_prev,
580 			    gw_trans->page - 1)) == -1)
581 				return got_error_from_errno("asprintf");
582 			khttp_puts(gw_trans->gw_req, prev);
583 			free(prev);
584 		}
585 
586 		khttp_puts(gw_trans->gw_req, div_end);
587 
588 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
589 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
590 		    dir_c != (gw_trans->page + 1) *
591 		    gw_trans->gw_conf->got_max_repos_display) {
592 			if ((asprintf(&next, nav_next,
593 			    gw_trans->page + 1)) == -1)
594 				return got_error_from_errno("calloc");
595 			khttp_puts(gw_trans->gw_req, next);
596 			khttp_puts(gw_trans->gw_req, div_end);
597 			free(next);
598 			next_disp = 0;
599 			break;
600 		}
601 
602 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
603 		    (gw_trans->page > 0) &&
604 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
605 		    prev_disp == gw_trans->repos_total))
606 			khttp_puts(gw_trans->gw_req, div_end);
607 
608 		next_disp++;
609 	}
610 	return error;
611 }
612 
613 static const struct got_error *
614 gw_log(struct gw_trans *gw_trans)
615 {
616 	const struct got_error *error = NULL;
617 	char *log, *log_html;
618 
619 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
620 	if (error)
621 		return error;
622 
623 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit,
624 	    gw_trans->gw_conf->got_max_commits_display, LOGFULL);
625 
626 	if (log != NULL && strcmp(log, "") != 0) {
627 		if ((asprintf(&log_html, logs, log)) == -1)
628 			return got_error_from_errno("asprintf");
629 		khttp_puts(gw_trans->gw_req, log_html);
630 		free(log_html);
631 		free(log);
632 	}
633 	return error;
634 }
635 
636 static const struct got_error *
637 gw_raw(struct gw_trans *gw_trans)
638 {
639 	const struct got_error *error = NULL;
640 
641 	return error;
642 }
643 
644 static const struct got_error *
645 gw_logbriefs(struct gw_trans *gw_trans)
646 {
647 	const struct got_error *error = NULL;
648 	char *log, *log_html;
649 
650 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
651 	if (error)
652 		return error;
653 
654 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit,
655 	    gw_trans->gw_conf->got_max_commits_display, LOGBRIEF);
656 
657 	if (log != NULL && strcmp(log, "") != 0) {
658 		if ((asprintf(&log_html, summary_logbriefs,
659 		    log)) == -1)
660 			return got_error_from_errno("asprintf");
661 		khttp_puts(gw_trans->gw_req, log_html);
662 		free(log_html);
663 		free(log);
664 	}
665 	return error;
666 }
667 
668 static const struct got_error *
669 gw_summary(struct gw_trans *gw_trans)
670 {
671 	const struct got_error *error = NULL;
672 	char *description_html, *repo_owner_html, *repo_age_html,
673 	     *cloneurl_html, *log, *log_html, *tags, *heads, *tags_html,
674 	     *heads_html, *age;
675 
676 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
677 	if (error)
678 		return error;
679 
680 	khttp_puts(gw_trans->gw_req, summary_wrapper);
681 	if (gw_trans->gw_conf->got_show_repo_description) {
682 		if (gw_trans->gw_dir->description != NULL &&
683 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
684 			if ((asprintf(&description_html, description,
685 			    gw_trans->gw_dir->description)) == -1)
686 				return got_error_from_errno("asprintf");
687 
688 			khttp_puts(gw_trans->gw_req, description_html);
689 			free(description_html);
690 		}
691 	}
692 
693 	if (gw_trans->gw_conf->got_show_repo_owner) {
694 		if (gw_trans->gw_dir->owner != NULL &&
695 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
696 			if ((asprintf(&repo_owner_html, repo_owner,
697 			    gw_trans->gw_dir->owner)) == -1)
698 				return got_error_from_errno("asprintf");
699 
700 			khttp_puts(gw_trans->gw_req, repo_owner_html);
701 			free(repo_owner_html);
702 		}
703 	}
704 
705 	if (gw_trans->gw_conf->got_show_repo_age) {
706 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path,
707 		    "refs/heads", TM_LONG);
708 		if (age != NULL && (strcmp(age, "") != 0)) {
709 			if ((asprintf(&repo_age_html, last_change, age)) == -1)
710 				return got_error_from_errno("asprintf");
711 
712 			khttp_puts(gw_trans->gw_req, repo_age_html);
713 			free(repo_age_html);
714 			free(age);
715 		}
716 	}
717 
718 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
719 		if (gw_trans->gw_dir->url != NULL &&
720 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
721 			if ((asprintf(&cloneurl_html, cloneurl,
722 			    gw_trans->gw_dir->url)) == -1)
723 				return got_error_from_errno("asprintf");
724 
725 			khttp_puts(gw_trans->gw_req, cloneurl_html);
726 			free(cloneurl_html);
727 		}
728 	}
729 	khttp_puts(gw_trans->gw_req, div_end);
730 
731 	log = gw_get_repo_log(gw_trans, NULL, NULL, D_MAXSLCOMMDISP, 0);
732 	tags = gw_get_repo_tags(gw_trans, D_MAXSLCOMMDISP, TAGBRIEF);
733 	heads = gw_get_repo_heads(gw_trans);
734 
735 	if (log != NULL && strcmp(log, "") != 0) {
736 		if ((asprintf(&log_html, summary_logbriefs,
737 		    log)) == -1)
738 			return got_error_from_errno("asprintf");
739 		khttp_puts(gw_trans->gw_req, log_html);
740 		free(log_html);
741 		free(log);
742 	}
743 
744 	if (tags != NULL && strcmp(tags, "") != 0) {
745 		if ((asprintf(&tags_html, summary_tags,
746 		    tags)) == -1)
747 			return got_error_from_errno("asprintf");
748 		khttp_puts(gw_trans->gw_req, tags_html);
749 		free(tags_html);
750 		free(tags);
751 	}
752 
753 	if (heads != NULL && strcmp(heads, "") != 0) {
754 		if ((asprintf(&heads_html, summary_heads,
755 		    heads)) == -1)
756 			return got_error_from_errno("asprintf");
757 		khttp_puts(gw_trans->gw_req, heads_html);
758 		free(heads_html);
759 		free(heads);
760 	}
761 	return error;
762 }
763 
764 static const struct got_error *
765 gw_tag(struct gw_trans *gw_trans)
766 {
767 	const struct got_error *error = NULL;
768 	char *log, *log_html;
769 
770 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
771 	if (error)
772 		return error;
773 
774 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGTAG);
775 
776 	if (log != NULL && strcmp(log, "") != 0) {
777 		if ((asprintf(&log_html, log_tag, log)) == -1)
778 			return got_error_from_errno("asprintf");
779 		khttp_puts(gw_trans->gw_req, log_html);
780 		free(log_html);
781 		free(log);
782 	}
783 	return error;
784 }
785 
786 static const struct got_error *
787 gw_tree(struct gw_trans *gw_trans)
788 {
789 	const struct got_error *error = NULL;
790 	char *log, *log_html;
791 
792 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
793 	if (error)
794 		return error;
795 
796 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGTREE);
797 
798 	if (log != NULL && strcmp(log, "") != 0) {
799 		if ((asprintf(&log_html, log_tree, log)) == -1)
800 			return got_error_from_errno("asprintf");
801 		khttp_puts(gw_trans->gw_req, log_html);
802 		free(log_html);
803 		free(log);
804 	}
805 	return error;
806 }
807 
808 static const struct got_error *
809 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
810 {
811 	const struct got_error *error = NULL;
812 	DIR *dt;
813 	char *dir_test;
814 	int opened = 0;
815 
816 	if ((asprintf(&dir_test, "%s/%s/%s",
817 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
818 	    GOTWEB_GIT_DIR)) == -1)
819 		return got_error_from_errno("asprintf");
820 
821 	dt = opendir(dir_test);
822 	if (dt == NULL) {
823 		free(dir_test);
824 	} else {
825 		gw_dir->path = strdup(dir_test);
826 		opened = 1;
827 		goto done;
828 	}
829 
830 	if ((asprintf(&dir_test, "%s/%s/%s",
831 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
832 	    GOTWEB_GOT_DIR)) == -1)
833 		return got_error_from_errno("asprintf");
834 
835 	dt = opendir(dir_test);
836 	if (dt == NULL)
837 		free(dir_test);
838 	else {
839 		opened = 1;
840 		error = got_error(GOT_ERR_NOT_GIT_REPO);
841 		goto errored;
842 	}
843 
844 	if ((asprintf(&dir_test, "%s/%s",
845 	    gw_trans->gw_conf->got_repos_path, gw_dir->name)) == -1)
846 		return got_error_from_errno("asprintf");
847 
848 	gw_dir->path = strdup(dir_test);
849 
850 done:
851 	gw_dir->description = gw_get_repo_description(gw_trans,
852 	    gw_dir->path);
853 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
854 	gw_dir->age = gw_get_repo_age(gw_trans, gw_dir->path, "refs/heads",
855 	    TM_DIFF);
856 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
857 
858 errored:
859 	free(dir_test);
860 	if (opened)
861 		closedir(dt);
862 	return error;
863 }
864 
865 static const struct got_error *
866 gw_load_got_paths(struct gw_trans *gw_trans)
867 {
868 	const struct got_error *error = NULL;
869 	DIR *d;
870 	struct dirent **sd_dent;
871 	struct gw_dir *gw_dir;
872 	struct stat st;
873 	unsigned int d_cnt, d_i;
874 
875 	d = opendir(gw_trans->gw_conf->got_repos_path);
876 	if (d == NULL) {
877 		error = got_error_from_errno2("opendir",
878 		    gw_trans->gw_conf->got_repos_path);
879 		return error;
880 	}
881 
882 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
883 	    alphasort);
884 	if (d_cnt == -1) {
885 		error = got_error_from_errno2("scandir",
886 		    gw_trans->gw_conf->got_repos_path);
887 		return error;
888 	}
889 
890 	for (d_i = 0; d_i < d_cnt; d_i++) {
891 		if (gw_trans->gw_conf->got_max_repos > 0 &&
892 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
893 			break; /* account for parent and self */
894 
895 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
896 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
897 			continue;
898 
899 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
900 			return got_error_from_errno("gw_dir malloc");
901 
902 		error = gw_load_got_path(gw_trans, gw_dir);
903 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
904 			continue;
905 		else if (error)
906 			return error;
907 
908 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
909 		    !got_path_dir_is_empty(gw_dir->path)) {
910 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
911 			    entry);
912 			gw_trans->repos_total++;
913 		}
914 	}
915 
916 	closedir(d);
917 	return error;
918 }
919 
920 static const struct got_error *
921 gw_parse_querystring(struct gw_trans *gw_trans)
922 {
923 	const struct got_error *error = NULL;
924 	struct kpair *p;
925 	struct gw_query_action *action = NULL;
926 	unsigned int i;
927 
928 	if (gw_trans->gw_req->fieldnmap[0]) {
929 		error = got_error_from_errno("bad parse");
930 		return error;
931 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
932 		/* define gw_trans->repo_path */
933 		if ((asprintf(&gw_trans->repo_name, "%s", p->parsed.s)) == -1)
934 			return got_error_from_errno("asprintf");
935 
936 		if ((asprintf(&gw_trans->repo_path, "%s/%s",
937 		    gw_trans->gw_conf->got_repos_path, p->parsed.s)) == -1)
938 			return got_error_from_errno("asprintf");
939 
940 		/* get action and set function */
941 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
942 			for (i = 0; i < nitems(gw_query_funcs); i++) {
943 				action = &gw_query_funcs[i];
944 				if (action->func_name == NULL)
945 					continue;
946 
947 				if (strcmp(action->func_name,
948 				    p->parsed.s) == 0) {
949 					gw_trans->action = i;
950 					if ((asprintf(&gw_trans->action_name,
951 					    "%s", action->func_name)) == -1)
952 						return
953 						    got_error_from_errno(
954 						    "asprintf");
955 
956 					break;
957 				}
958 
959 				action = NULL;
960 			}
961 
962  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
963 			if ((asprintf(&gw_trans->commit, "%s",
964 			    p->parsed.s)) == -1)
965 				return got_error_from_errno("asprintf");
966 
967 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
968 			if ((asprintf(&gw_trans->repo_file, "%s",
969 			    p->parsed.s)) == -1)
970 				return got_error_from_errno("asprintf");
971 
972 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER]))
973 			if ((asprintf(&gw_trans->repo_folder, "%s",
974 			    p->parsed.s)) == -1)
975 				return got_error_from_errno("asprintf");
976 
977 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
978 			if ((asprintf(&gw_trans->headref, "%s",
979 			    p->parsed.s)) == -1)
980 				return got_error_from_errno("asprintf");
981 
982 		if (action == NULL) {
983 			error = got_error_from_errno("invalid action");
984 			return error;
985 		}
986 		if ((gw_trans->gw_dir =
987 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
988 			return got_error_from_errno("gw_dir malloc");
989 
990 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
991 		if (error)
992 			return error;
993 	} else
994 		gw_trans->action = GW_INDEX;
995 
996 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
997 		gw_trans->page = p->parsed.i;
998 
999 	if (gw_trans->action == GW_RAW)
1000 		gw_trans->mime = KMIME_TEXT_PLAIN;
1001 
1002 	return error;
1003 }
1004 
1005 static struct gw_dir *
1006 gw_init_gw_dir(char *dir)
1007 {
1008 	struct gw_dir *gw_dir;
1009 
1010 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
1011 		return NULL;
1012 
1013 	if ((asprintf(&gw_dir->name, "%s", dir)) == -1)
1014 		return NULL;
1015 
1016 	return gw_dir;
1017 }
1018 
1019 static const struct got_error*
1020 match_logmsg(int *have_match, struct got_object_id *id,
1021     struct got_commit_object *commit, regex_t *regex)
1022 {
1023 	const struct got_error *err = NULL;
1024 	regmatch_t regmatch;
1025 	char *id_str = NULL, *logmsg = NULL;
1026 
1027 	*have_match = 0;
1028 
1029 	err = got_object_id_str(&id_str, id);
1030 	if (err)
1031 		return err;
1032 
1033 	err = got_object_commit_get_logmsg(&logmsg, commit);
1034 	if (err)
1035 		goto done;
1036 
1037 	if (regexec(regex, logmsg, 1, &regmatch, 0) == 0)
1038 		*have_match = 1;
1039 done:
1040 	free(id_str);
1041 	free(logmsg);
1042 	return err;
1043 }
1044 
1045 static void
1046 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
1047 {
1048 	khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1049 	khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1050 	    khttps[code]);
1051 	khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1052 	    kmimetypes[mime]);
1053 	khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
1054 	khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1055 	khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
1056 	khttp_body(gw_trans->gw_req);
1057 }
1058 
1059 static void
1060 gw_display_index(struct gw_trans *gw_trans, const struct got_error *err)
1061 {
1062 	gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1063 	khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1064 
1065 	if (err)
1066 		khttp_puts(gw_trans->gw_req, err->msg);
1067 	else
1068 		khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1069 		    gw_query_funcs[gw_trans->action].template);
1070 
1071 	khtml_close(gw_trans->gw_html_req);
1072 }
1073 
1074 static int
1075 gw_template(size_t key, void *arg)
1076 {
1077 	const struct got_error *error = NULL;
1078 	struct gw_trans *gw_trans = arg;
1079 	char *gw_got_link, *gw_site_link;
1080 	char *site_owner_name, *site_owner_name_h;
1081 
1082 	switch (key) {
1083 	case (TEMPL_HEAD):
1084 		khttp_puts(gw_trans->gw_req, head);
1085 		break;
1086 	case(TEMPL_HEADER):
1087 		gw_got_link = gw_get_got_link(gw_trans);
1088 		if (gw_got_link != NULL)
1089 			khttp_puts(gw_trans->gw_req, gw_got_link);
1090 
1091 		free(gw_got_link);
1092 		break;
1093 	case (TEMPL_SITEPATH):
1094 		gw_site_link = gw_get_site_link(gw_trans);
1095 		if (gw_site_link != NULL)
1096 			khttp_puts(gw_trans->gw_req, gw_site_link);
1097 
1098 		free(gw_site_link);
1099 		break;
1100 	case(TEMPL_TITLE):
1101 		if (gw_trans->gw_conf->got_site_name != NULL)
1102 			khtml_puts(gw_trans->gw_html_req,
1103 			    gw_trans->gw_conf->got_site_name);
1104 
1105 		break;
1106 	case (TEMPL_SEARCH):
1107 		khttp_puts(gw_trans->gw_req, search);
1108 		break;
1109 	case(TEMPL_SITEOWNER):
1110 		if (gw_trans->gw_conf->got_site_owner != NULL &&
1111 		    gw_trans->gw_conf->got_show_site_owner) {
1112 			site_owner_name =
1113 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
1114 			if ((asprintf(&site_owner_name_h, site_owner,
1115 			    site_owner_name))
1116 			    == -1)
1117 				return 0;
1118 
1119 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
1120 			free(site_owner_name);
1121 			free(site_owner_name_h);
1122 		}
1123 		break;
1124 	case(TEMPL_CONTENT):
1125 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1126 		if (error)
1127 			khttp_puts(gw_trans->gw_req, error->msg);
1128 
1129 		break;
1130 	default:
1131 		return 0;
1132 		break;
1133 	}
1134 	return 1;
1135 }
1136 
1137 static char *
1138 gw_get_repo_description(struct gw_trans *gw_trans, char *dir)
1139 {
1140 	FILE *f;
1141 	char *description = NULL, *d_file = NULL;
1142 	unsigned int len;
1143 
1144 	if (gw_trans->gw_conf->got_show_repo_description == false)
1145 		goto err;
1146 
1147 	if ((asprintf(&d_file, "%s/description", dir)) == -1)
1148 		goto err;
1149 
1150 	if ((f = fopen(d_file, "r")) == NULL)
1151 		goto err;
1152 
1153 	fseek(f, 0, SEEK_END);
1154 	len = ftell(f) + 1;
1155 	fseek(f, 0, SEEK_SET);
1156 	if ((description = calloc(len, sizeof(char *))) == NULL)
1157 		goto err;
1158 
1159 	fread(description, 1, len, f);
1160 	fclose(f);
1161 	free(d_file);
1162 	return description;
1163 err:
1164 	if ((asprintf(&description, "%s", "")) == -1)
1165 		return NULL;
1166 
1167 	return description;
1168 }
1169 
1170 static char *
1171 gw_get_time_str(time_t committer_time, int ref_tm)
1172 {
1173 	struct tm tm;
1174 	time_t diff_time;
1175 	char *years = "years ago", *months = "months ago";
1176 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1177 	char *minutes = "minutes ago", *seconds = "seconds ago";
1178 	char *now = "right now";
1179 	char *repo_age, *s;
1180 	char datebuf[29];
1181 
1182 	switch (ref_tm) {
1183 	case TM_DIFF:
1184 		diff_time = time(NULL) - committer_time;
1185 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1186 			if ((asprintf(&repo_age, "%lld %s",
1187 			    (diff_time / 60 / 60 / 24 / 365), years)) == -1)
1188 				return NULL;
1189 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1190 			if ((asprintf(&repo_age, "%lld %s",
1191 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1192 			    months)) == -1)
1193 				return NULL;
1194 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1195 			if ((asprintf(&repo_age, "%lld %s",
1196 			    (diff_time / 60 / 60 / 24 / 7), weeks)) == -1)
1197 				return NULL;
1198 		} else if (diff_time > 60 * 60 * 24 * 2) {
1199 			if ((asprintf(&repo_age, "%lld %s",
1200 			    (diff_time / 60 / 60 / 24), days)) == -1)
1201 				return NULL;
1202 		} else if (diff_time > 60 * 60 * 2) {
1203 			if ((asprintf(&repo_age, "%lld %s",
1204 			    (diff_time / 60 / 60), hours)) == -1)
1205 				return NULL;
1206 		} else if (diff_time > 60 * 2) {
1207 			if ((asprintf(&repo_age, "%lld %s", (diff_time / 60),
1208 			    minutes)) == -1)
1209 				return NULL;
1210 		} else if (diff_time > 2) {
1211 			if ((asprintf(&repo_age, "%lld %s", diff_time,
1212 			    seconds)) == -1)
1213 				return NULL;
1214 		} else {
1215 			if ((asprintf(&repo_age, "%s", now)) == -1)
1216 				return NULL;
1217 		}
1218 		break;
1219 	case TM_LONG:
1220 		if (gmtime_r(&committer_time, &tm) == NULL)
1221 			return NULL;
1222 
1223 		s = asctime_r(&tm, datebuf);
1224 		if (s == NULL)
1225 			return NULL;
1226 
1227 		if ((asprintf(&repo_age, "%s UTC", datebuf)) == -1)
1228 			return NULL;
1229 		break;
1230 	}
1231 	return repo_age;
1232 }
1233 
1234 static char *
1235 gw_get_repo_age(struct gw_trans *gw_trans, char *dir, char *repo_ref,
1236     int ref_tm)
1237 {
1238 	const struct got_error *error = NULL;
1239 	struct got_object_id *id = NULL;
1240 	struct got_repository *repo = NULL;
1241 	struct got_commit_object *commit = NULL;
1242 	struct got_reflist_head refs;
1243 	struct got_reflist_entry *re;
1244 	struct got_reference *head_ref;
1245 	int is_head = 0;
1246 	time_t committer_time = 0, cmp_time = 0;
1247 	const char *refname;
1248 	char *repo_age = NULL;
1249 
1250 	if (repo_ref == NULL)
1251 		return NULL;
1252 
1253 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1254 		is_head = 1;
1255 
1256 	SIMPLEQ_INIT(&refs);
1257 	if (gw_trans->gw_conf->got_show_repo_age == false) {
1258 		if ((asprintf(&repo_age, "")) == -1)
1259 			return NULL;
1260 		return repo_age;
1261 	}
1262 
1263 	error = got_repo_open(&repo, dir, NULL);
1264 	if (error)
1265 		goto err;
1266 
1267 	if (is_head)
1268 		error = got_ref_list(&refs, repo, "refs/heads",
1269 		    got_ref_cmp_by_name, NULL);
1270 	else
1271 		error = got_ref_list(&refs, repo, repo_ref,
1272 		    got_ref_cmp_by_name, NULL);
1273 	if (error)
1274 		goto err;
1275 
1276 	SIMPLEQ_FOREACH(re, &refs, entry) {
1277 		if (is_head)
1278 			refname = strdup(repo_ref);
1279 		else
1280 			refname = got_ref_get_name(re->ref);
1281 		error = got_ref_open(&head_ref, repo, refname, 0);
1282 		if (error)
1283 			goto err;
1284 
1285 		error = got_ref_resolve(&id, repo, head_ref);
1286 		got_ref_close(head_ref);
1287 		if (error)
1288 			goto err;
1289 
1290 		error = got_object_open_as_commit(&commit, repo, id);
1291 		if (error)
1292 			goto err;
1293 
1294 		committer_time =
1295 		    got_object_commit_get_committer_time(commit);
1296 
1297 		if (cmp_time < committer_time)
1298 			cmp_time = committer_time;
1299 	}
1300 
1301 	if (cmp_time != 0) {
1302 		committer_time = cmp_time;
1303 		repo_age = gw_get_time_str(committer_time, ref_tm);
1304 	} else
1305 		if ((asprintf(&repo_age, "")) == -1)
1306 			return NULL;
1307 	got_ref_list_free(&refs);
1308 	free(id);
1309 	return repo_age;
1310 err:
1311 	if ((asprintf(&repo_age, "%s", error->msg)) == -1)
1312 		return NULL;
1313 
1314 	return repo_age;
1315 }
1316 
1317 static char *
1318 gw_get_repo_diff(struct gw_trans *gw_trans, char *id_str1, char *id_str2)
1319 {
1320 	const struct got_error *error;
1321 	FILE *f = NULL;
1322 	struct got_object_id *id1 = NULL, *id2 = NULL;
1323 	struct got_repository *repo = NULL;
1324 	struct buf *diffbuf = NULL;
1325 	char *label1 = NULL, *label2 = NULL, *diff_html = NULL, *buf = NULL,
1326 	     *buf_color = NULL;
1327 	int type1, type2;
1328 	size_t newsize;
1329 
1330 	f = got_opentemp();
1331 	if (f == NULL)
1332 		return NULL;
1333 
1334 	error = buf_alloc(&diffbuf, 0);
1335 	if (error)
1336 		return NULL;
1337 
1338 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1339 	if (error)
1340 		goto done;
1341 
1342 	error = got_repo_match_object_id(&id1, &label1, id_str1,
1343 	    GOT_OBJ_TYPE_ANY, 1, repo);
1344 	if (error)
1345 		goto done;
1346 
1347 	if (id_str2) {
1348 		error = got_repo_match_object_id(&id2, &label2, id_str2,
1349 		    GOT_OBJ_TYPE_ANY, 1, repo);
1350 		if (error)
1351 			goto done;
1352 
1353 		error = got_object_get_type(&type2, repo, id2);
1354 		if (error)
1355 			goto done;
1356 	}
1357 
1358 	error = got_object_get_type(&type1, repo, id1);
1359 	if (error)
1360 		goto done;
1361 
1362 	if (id_str2 && type1 != type2) {
1363 		error = got_error(GOT_ERR_OBJ_TYPE);
1364 		goto done;
1365 	}
1366 
1367 	switch (type1) {
1368 	case GOT_OBJ_TYPE_BLOB:
1369 		error = got_diff_objects_as_blobs(id2, id1, NULL, NULL, 3, 0,
1370 		    repo, f);
1371 		break;
1372 	case GOT_OBJ_TYPE_TREE:
1373 		error = got_diff_objects_as_trees(id2, id1, "", "", 3, 0, repo,
1374 		    f);
1375 		break;
1376 	case GOT_OBJ_TYPE_COMMIT:
1377 		error = got_diff_objects_as_commits(id2, id1, 3, 0, repo, f);
1378 		break;
1379 	default:
1380 		error = got_error(GOT_ERR_OBJ_TYPE);
1381 	}
1382 
1383 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1384 		goto done;
1385 
1386 	fseek(f, 0, SEEK_SET);
1387 
1388 	while ((fgets(buf, 128, f)) != NULL) {
1389 		buf_color = gw_colordiff_line(buf);
1390 		error = buf_puts(&newsize, diffbuf, buf_color);
1391 		if (error)
1392 			return NULL;
1393 
1394 		error = buf_puts(&newsize, diffbuf, div_end);
1395 		if (error)
1396 			return NULL;
1397 	}
1398 
1399 	if (buf_len(diffbuf) > 0) {
1400 		error = buf_putc(diffbuf, '\0');
1401 		diff_html = strdup(buf_get(diffbuf));
1402 	}
1403 done:
1404 	fclose(f);
1405 	free(buf_color);
1406 	free(buf);
1407 	free(diffbuf);
1408 	free(label1);
1409 	free(label2);
1410 	free(id1);
1411 	free(id2);
1412 	if (repo)
1413 		got_repo_close(repo);
1414 
1415 	if (error)
1416 		return NULL;
1417 	else
1418 		return diff_html;
1419 }
1420 
1421 static char *
1422 gw_get_repo_owner(struct gw_trans *gw_trans, char *dir)
1423 {
1424 	FILE *f;
1425 	char *owner = NULL, *d_file = NULL;
1426 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1427 	char *comp, *pos, *buf;
1428 	unsigned int i;
1429 
1430 	if (gw_trans->gw_conf->got_show_repo_owner == false)
1431 		goto err;
1432 
1433 	if ((asprintf(&d_file, "%s/config", dir)) == -1)
1434 		goto err;
1435 
1436 	if ((f = fopen(d_file, "r")) == NULL)
1437 		goto err;
1438 
1439 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1440 		goto err;
1441 
1442 	while ((fgets(buf, 128, f)) != NULL) {
1443 		if ((pos = strstr(buf, gotweb)) != NULL)
1444 			break;
1445 
1446 		if ((pos = strstr(buf, gitweb)) != NULL)
1447 			break;
1448 	}
1449 
1450 	if (pos == NULL)
1451 		goto err;
1452 
1453 	do {
1454 		fgets(buf, 128, f);
1455 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1456 
1457 	if (comp == NULL)
1458 		goto err;
1459 
1460 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1461 		goto err;
1462 
1463 	for (i = 0; i < 2; i++) {
1464 		owner = strsep(&buf, "\"");
1465 	}
1466 
1467 	if (owner == NULL)
1468 		goto err;
1469 
1470 	fclose(f);
1471 	free(d_file);
1472 	return owner;
1473 err:
1474 	if ((asprintf(&owner, "%s", "")) == -1)
1475 		return NULL;
1476 
1477 	return owner;
1478 }
1479 
1480 static char *
1481 gw_get_clone_url(struct gw_trans *gw_trans, char *dir)
1482 {
1483 	FILE *f;
1484 	char *url = NULL, *d_file = NULL;
1485 	unsigned int len;
1486 
1487 	if ((asprintf(&d_file, "%s/cloneurl", dir)) == -1)
1488 		return NULL;
1489 
1490 	if ((f = fopen(d_file, "r")) == NULL)
1491 		return NULL;
1492 
1493 	fseek(f, 0, SEEK_END);
1494 	len = ftell(f) + 1;
1495 	fseek(f, 0, SEEK_SET);
1496 
1497 	if ((url = calloc(len, sizeof(char *))) == NULL)
1498 		return NULL;
1499 
1500 	fread(url, 1, len, f);
1501 	fclose(f);
1502 	free(d_file);
1503 	return url;
1504 }
1505 
1506 static char *
1507 gw_get_repo_log(struct gw_trans *gw_trans, const char *search_pattern,
1508     char *start_commit, int limit, int log_type)
1509 {
1510 	const struct got_error *error;
1511 	struct got_repository *repo = NULL;
1512 	struct got_reflist_head refs;
1513 	struct got_reflist_entry *re;
1514 	struct got_commit_object *commit = NULL;
1515 	struct got_object_id *id1 = NULL, *id2 = NULL;
1516 	struct got_object_qid *parent_id;
1517 	struct got_commit_graph *graph = NULL;
1518 	char *logs = NULL, *id_str1 = NULL, *id_str2 = NULL, *path = NULL,
1519 	     *in_repo_path = NULL, *refs_str = NULL, *refs_str_disp = NULL,
1520 	     *treeid = NULL, *commit_row = NULL, *commit_commit = NULL,
1521 	     *commit_commit_disp = NULL, *commit_age_diff = NULL,
1522 	     *commit_age_diff_disp = NULL, *commit_age_long = NULL,
1523 	     *commit_age_long_disp = NULL, *commit_author = NULL,
1524 	     *commit_author_disp = NULL, *commit_committer = NULL,
1525 	     *commit_committer_disp = NULL, *commit_log = NULL,
1526 	     *commit_log_disp = NULL, *commit_parent = NULL,
1527 	     *commit_diff_disp = NULL, *logbriefs_navs_html = NULL,
1528 	     *log_tree_html = NULL, *log_commit_html = NULL,
1529 	     *log_diff_html = NULL, *commit_tree = NULL,
1530 	     *commit_tree_disp = NULL, *log_tag_html = NULL,
1531 	     *log_blame_html = NULL;
1532 	char *commit_log0, *newline;
1533 	regex_t regex;
1534 	int have_match, log_count = 0, has_parent = 1;
1535 	size_t newsize;
1536 	struct buf *diffbuf = NULL;
1537 	time_t committer_time;
1538 
1539 	if (gw_trans->action == GW_LOG || gw_trans->action == GW_LOGBRIEFS)
1540 		log_count = gw_get_repo_log_count(gw_trans, start_commit);
1541 
1542 	error = buf_alloc(&diffbuf, 0);
1543 	if (error)
1544 		return NULL;
1545 
1546 	if (search_pattern &&
1547 	    regcomp(&regex, search_pattern, REG_EXTENDED | REG_NOSUB |
1548 	    REG_NEWLINE))
1549 		return NULL;
1550 
1551 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1552 	if (error)
1553 		return NULL;
1554 
1555 	SIMPLEQ_INIT(&refs);
1556 
1557 	if (start_commit == NULL) {
1558 		struct got_reference *head_ref;
1559 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
1560 		if (error)
1561 			goto done;
1562 
1563 		error = got_ref_resolve(&id1, repo, head_ref);
1564 		got_ref_close(head_ref);
1565 		if (error)
1566 			goto done;
1567 
1568 		error = got_object_open_as_commit(&commit, repo, id1);
1569 	} else {
1570 		struct got_reference *ref;
1571 		error = got_ref_open(&ref, repo, start_commit, 0);
1572 		if (error == NULL) {
1573 			int obj_type;
1574 			error = got_ref_resolve(&id1, repo, ref);
1575 			got_ref_close(ref);
1576 			if (error)
1577 				goto done;
1578 			error = got_object_get_type(&obj_type, repo, id1);
1579 			if (error)
1580 				goto done;
1581 			if (obj_type == GOT_OBJ_TYPE_TAG) {
1582 				struct got_tag_object *tag;
1583 				error = got_object_open_as_tag(&tag, repo, id1);
1584 				if (error)
1585 					goto done;
1586 				if (got_object_tag_get_object_type(tag) !=
1587 				    GOT_OBJ_TYPE_COMMIT) {
1588 					got_object_tag_close(tag);
1589 					error = got_error(GOT_ERR_OBJ_TYPE);
1590 					goto done;
1591 				}
1592 				free(id1);
1593 				id1 = got_object_id_dup(
1594 				    got_object_tag_get_object_id(tag));
1595 				if (id1 == NULL)
1596 					error = got_error_from_errno(
1597 					    "got_object_id_dup");
1598 				got_object_tag_close(tag);
1599 				if (error)
1600 					goto done;
1601 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
1602 				error = got_error(GOT_ERR_OBJ_TYPE);
1603 				goto done;
1604 			}
1605 			error = got_object_open_as_commit(&commit, repo, id1);
1606 			if (error)
1607 				goto done;
1608 		}
1609 		if (commit == NULL) {
1610 			error = got_repo_match_object_id_prefix(&id1,
1611 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
1612 			if (error)
1613 				goto done;
1614 		}
1615 		error = got_repo_match_object_id_prefix(&id1,
1616 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
1617 	}
1618 
1619 	if (error)
1620 		goto done;
1621 
1622 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
1623 	if (error)
1624 		goto done;
1625 
1626 	if (in_repo_path) {
1627 		free(path);
1628 		path = in_repo_path;
1629 	}
1630 
1631 	error = got_ref_list(&refs, repo, NULL, got_ref_cmp_by_name, NULL);
1632 	if (error)
1633 		goto done;
1634 
1635 	error = got_commit_graph_open(&graph, path, 0);
1636 	if (error)
1637 		goto done;
1638 
1639 	error = got_commit_graph_iter_start(graph, id1, repo, NULL, NULL);
1640 	if (error)
1641 		goto done;
1642 
1643 	for (;;) {
1644 		error = got_commit_graph_iter_next(&id1, graph, repo, NULL,
1645 		    NULL);
1646 		if (error) {
1647 			if (error->code == GOT_ERR_ITER_COMPLETED)
1648 				error = NULL;
1649 			break;
1650 		}
1651 		if (id1 == NULL)
1652 			break;
1653 
1654 		error = got_object_open_as_commit(&commit, repo, id1);
1655 		if (error)
1656 			break;
1657 
1658 		if (search_pattern) {
1659 			error = match_logmsg(&have_match, id1, commit,
1660 			    &regex);
1661 			if (error) {
1662 				got_object_commit_close(commit);
1663 				break;
1664 			}
1665 			if (have_match == 0) {
1666 				got_object_commit_close(commit);
1667 				continue;
1668 			}
1669 		}
1670 
1671 		SIMPLEQ_FOREACH(re, &refs, entry) {
1672 			char *s;
1673 			const char *name;
1674 			struct got_tag_object *tag = NULL;
1675 			int cmp;
1676 
1677 			name = got_ref_get_name(re->ref);
1678 			if (strcmp(name, GOT_REF_HEAD) == 0)
1679 				continue;
1680 			if (strncmp(name, "refs/", 5) == 0)
1681 				name += 5;
1682 			if (strncmp(name, "got/", 4) == 0)
1683 				continue;
1684 			if (strncmp(name, "heads/", 6) == 0)
1685 				name += 6;
1686 			if (strncmp(name, "remotes/", 8) == 0)
1687 				name += 8;
1688 			if (strncmp(name, "tags/", 5) == 0) {
1689 				error = got_object_open_as_tag(&tag, repo,
1690 				    re->id);
1691 				if (error) {
1692 					if (error->code != GOT_ERR_OBJ_TYPE)
1693 						continue;
1694 					/*
1695 					 * Ref points at something other
1696 					 * than a tag.
1697 					 */
1698 					error = NULL;
1699 					tag = NULL;
1700 				}
1701 			}
1702 			cmp = got_object_id_cmp(tag ?
1703 			    got_object_tag_get_object_id(tag) : re->id, id1);
1704 			if (tag)
1705 				got_object_tag_close(tag);
1706 			if (cmp != 0)
1707 				continue;
1708 			s = refs_str;
1709 			if ((asprintf(&refs_str, "%s%s%s", s ? s : "",
1710 			    s ? ", " : "", name)) == -1) {
1711 				error = got_error_from_errno("asprintf");
1712 				free(s);
1713 				goto done;
1714 			}
1715 			free(s);
1716 		}
1717 
1718 		if (refs_str == NULL)
1719 			refs_str_disp = strdup("");
1720 		else {
1721 			if ((asprintf(&refs_str_disp, "(%s)",
1722 			    refs_str)) == -1) {
1723 				error = got_error_from_errno("asprintf");
1724 				free(refs_str);
1725 				goto done;
1726 			}
1727 		}
1728 
1729 		error = got_object_id_str(&id_str1, id1);
1730 		if (error)
1731 			goto done;
1732 
1733 		error = got_object_id_str(&treeid,
1734 		    got_object_commit_get_tree_id(commit));
1735 		if (error)
1736 			goto done;
1737 
1738 		if (gw_trans->action == GW_COMMIT ||
1739 		    gw_trans->action == GW_COMMITDIFF) {
1740 			parent_id =
1741 			    SIMPLEQ_FIRST(
1742 			    got_object_commit_get_parent_ids(commit));
1743 			if (parent_id != NULL) {
1744 				id2 = got_object_id_dup(parent_id->id);
1745 				free (parent_id);
1746 				error = got_object_id_str(&id_str2, id2);
1747 				if (error)
1748 					goto done;
1749 				free(id2);
1750 			} else {
1751 				has_parent = 0;
1752 				id_str2 = strdup("/dev/null");
1753 			}
1754 		}
1755 
1756 		committer_time =
1757 		    got_object_commit_get_committer_time(commit);
1758 
1759 		if ((asprintf(&commit_parent, "%s", id_str2)) == -1) {
1760 			error = got_error_from_errno("asprintf");
1761 			goto done;
1762 		}
1763 
1764 		if ((asprintf(&commit_tree, "%s", treeid)) == -1) {
1765 			error = got_error_from_errno("asprintf");
1766 			goto done;
1767 		}
1768 
1769 		if ((asprintf(&commit_tree_disp, commit_tree_html,
1770 		    treeid)) == -1) {
1771 			error = got_error_from_errno("asprintf");
1772 			goto done;
1773 		}
1774 
1775 		if ((asprintf(&commit_diff_disp, commit_diff_html, id_str2,
1776 			id_str1)) == -1) {
1777 			error = got_error_from_errno("asprintf");
1778 			goto done;
1779 		}
1780 
1781 		if ((asprintf(&commit_commit, "%s", id_str1)) == -1) {
1782 			error = got_error_from_errno("asprintf");
1783 			goto done;
1784 		}
1785 
1786 		if ((asprintf(&commit_commit_disp, commit_commit_html,
1787 		    commit_commit, refs_str_disp)) == -1) {
1788 			error = got_error_from_errno("asprintf");
1789 			goto done;
1790 		}
1791 
1792 		if ((asprintf(&commit_age_long, "%s",
1793 		    gw_get_time_str(committer_time, TM_LONG))) == -1) {
1794 			error = got_error_from_errno("asprintf");
1795 			goto done;
1796 		}
1797 
1798 		if ((asprintf(&commit_age_long_disp, commit_age_html,
1799 		    commit_age_long)) == -1) {
1800 			error = got_error_from_errno("asprintf");
1801 			goto done;
1802 		}
1803 
1804 		if ((asprintf(&commit_age_diff, "%s",
1805 		    gw_get_time_str(committer_time, TM_DIFF))) == -1) {
1806 			error = got_error_from_errno("asprintf");
1807 			goto done;
1808 		}
1809 
1810 		if ((asprintf(&commit_age_diff_disp, commit_age_html,
1811 		    commit_age_diff)) == -1) {
1812 			error = got_error_from_errno("asprintf");
1813 			goto done;
1814 		}
1815 
1816 		if ((asprintf(&commit_author, "%s",
1817 		    got_object_commit_get_author(commit))) == -1) {
1818 			error = got_error_from_errno("asprintf");
1819 			goto done;
1820 		}
1821 
1822 		if ((asprintf(&commit_author_disp, commit_author_html,
1823 		    gw_html_escape(commit_author))) == -1) {
1824 			error = got_error_from_errno("asprintf");
1825 			goto done;
1826 		}
1827 
1828 		if ((asprintf(&commit_committer, "%s",
1829 		    got_object_commit_get_committer(commit))) == -1) {
1830 			error = got_error_from_errno("asprintf");
1831 			goto done;
1832 		}
1833 
1834 		if ((asprintf(&commit_committer_disp, commit_committer_html,
1835 		    gw_html_escape(commit_committer))) == -1) {
1836 			error = got_error_from_errno("asprintf");
1837 			goto done;
1838 		}
1839 
1840 		if (strcmp(commit_author, commit_committer) == 0) {
1841 			free(commit_committer_disp);
1842 			commit_committer_disp = strdup("");
1843 		}
1844 
1845 		error = got_object_commit_get_logmsg(&commit_log0, commit);
1846 		if (error)
1847 			goto done;
1848 
1849 		commit_log = commit_log0;
1850 		while (*commit_log == '\n')
1851 			commit_log++;
1852 
1853 		switch(log_type) {
1854 		case (LOGBRIEF):
1855 			newline = strchr(commit_log, '\n');
1856 			if (newline)
1857 				*newline = '\0';
1858 
1859 			if ((asprintf(&logbriefs_navs_html, logbriefs_navs,
1860 			    gw_trans->repo_name, id_str1, gw_trans->repo_name,
1861 			    id_str1, gw_trans->repo_name, id_str1,
1862 			    gw_trans->repo_name, id_str1)) == -1) {
1863 				error = got_error_from_errno("asprintf");
1864 				goto done;
1865 			}
1866 
1867 			if ((asprintf(&commit_row, logbriefs_row,
1868 			    commit_age_diff, commit_author, commit_log,
1869 			    logbriefs_navs_html)) == -1) {
1870 				error = got_error_from_errno("asprintf");
1871 				goto done;
1872 			}
1873 
1874 			free(logbriefs_navs_html);
1875 			logbriefs_navs_html = NULL;
1876 			break;
1877 		case (LOGFULL):
1878 			if ((asprintf(&logbriefs_navs_html, logbriefs_navs,
1879 			    gw_trans->repo_name, id_str1, gw_trans->repo_name,
1880 			    id_str1, gw_trans->repo_name, id_str1,
1881 			    gw_trans->repo_name, id_str1)) == -1) {
1882 				error = got_error_from_errno("asprintf");
1883 				goto done;
1884 			}
1885 
1886 			if ((asprintf(&commit_row, logs_row, commit_commit_disp,
1887 			    commit_author_disp, commit_committer_disp,
1888 			    commit_age_long_disp, gw_html_escape(commit_log),
1889 			    logbriefs_navs_html)) == -1) {
1890 				error = got_error_from_errno("asprintf");
1891 				goto done;
1892 			}
1893 
1894 			free(logbriefs_navs_html);
1895 			logbriefs_navs_html = NULL;
1896 			break;
1897 		case (LOGTAG):
1898 			log_tag_html = strdup("tag log here");
1899 
1900 			if ((asprintf(&commit_row, log_tag_row,
1901 			    gw_html_escape(commit_log), log_tag_html)) == -1) {
1902 				error = got_error_from_errno("asprintf");
1903 				goto done;
1904 			}
1905 
1906 			free(log_tag_html);
1907 			break;
1908 		case (LOGBLAME):
1909 			log_blame_html = gw_get_file_blame(gw_trans,
1910 			    start_commit);
1911 
1912 			if ((asprintf(&commit_row, log_blame_row,
1913 			    gw_html_escape(commit_log), log_blame_html)) == -1) {
1914 				error = got_error_from_errno("asprintf");
1915 				goto done;
1916 			}
1917 
1918 			free(log_blame_html);
1919 			break;
1920 		case (LOGTREE):
1921 			log_tree_html = gw_get_repo_tree(gw_trans,
1922 			    start_commit);
1923 
1924 			if ((asprintf(&commit_row, log_tree_row,
1925 			    gw_html_escape(commit_log), log_tree_html)) == -1) {
1926 				error = got_error_from_errno("asprintf");
1927 				goto done;
1928 			}
1929 
1930 			free(log_tree_html);
1931 			break;
1932 		case (LOGCOMMIT):
1933 			if ((asprintf(&commit_log_disp, commit_log_html,
1934 			    gw_html_escape(commit_log))) == -1) {
1935 				error = got_error_from_errno("asprintf");
1936 				goto done;
1937 			}
1938 
1939 			log_commit_html = strdup("commit here");
1940 
1941 			if ((asprintf(&commit_row, log_commit_row,
1942 			    commit_diff_disp, commit_commit_disp,
1943 			    commit_tree_disp, commit_author_disp,
1944 			    commit_committer_disp, commit_age_long_disp,
1945 			    commit_log_disp, log_commit_html)) == -1) {
1946 				error = got_error_from_errno("asprintf");
1947 				goto done;
1948 			}
1949 			free(commit_log_disp);
1950 			free(log_commit_html);
1951 
1952 			break;
1953 		case (LOGDIFF):
1954 			if ((asprintf(&commit_log_disp, commit_log_html,
1955 			    gw_html_escape(commit_log))) == -1) {
1956 				error = got_error_from_errno("asprintf");
1957 				goto done;
1958 			}
1959 
1960 			if (has_parent)
1961 				log_diff_html = gw_get_repo_diff(gw_trans,
1962 				    commit_commit, commit_parent);
1963 			else
1964 				log_diff_html = gw_get_repo_diff(gw_trans,
1965 				    commit_commit, NULL);
1966 
1967 			if ((asprintf(&commit_row, log_diff_row,
1968 			    commit_diff_disp, commit_commit_disp,
1969 			    commit_tree_disp, commit_author_disp,
1970 			    commit_committer_disp, commit_age_long_disp,
1971 			    commit_log_disp, log_diff_html)) == -1) {
1972 				error = got_error_from_errno("asprintf");
1973 				goto done;
1974 			}
1975 			free(commit_log_disp);
1976 			free(log_diff_html);
1977 
1978 			break;
1979 		default:
1980 			return NULL;
1981 		}
1982 
1983 		error = buf_puts(&newsize, diffbuf, commit_row);
1984 
1985 		free(commit_parent);
1986 		free(commit_diff_disp);
1987 		free(commit_tree_disp);
1988 		free(commit_age_diff);
1989 		free(commit_age_diff_disp);
1990 		free(commit_age_long);
1991 		free(commit_age_long_disp);
1992 		free(commit_author);
1993 		free(commit_author_disp);
1994 		free(commit_committer);
1995 		free(commit_committer_disp);
1996 		free(commit_log0);
1997 		free(commit_row);
1998 		free(refs_str_disp);
1999 		free(refs_str);
2000 		refs_str = NULL;
2001 		free(id_str1);
2002 		id_str1 = NULL;
2003 		free(id_str2);
2004 		id_str2 = NULL;
2005 
2006 		if (error || (limit && --limit == 0))
2007 			break;
2008 	}
2009 
2010 	if (error)
2011 		goto done;
2012 
2013 	if (buf_len(diffbuf) > 0) {
2014 		error = buf_putc(diffbuf, '\0');
2015 		logs = strdup(buf_get(diffbuf));
2016 	}
2017 done:
2018 	buf_free(diffbuf);
2019 	free(in_repo_path);
2020 	if (commit != NULL)
2021 		got_object_commit_close(commit);
2022 	if (search_pattern)
2023 		regfree(&regex);
2024 	if (graph)
2025 		got_commit_graph_close(graph);
2026 	if (repo) {
2027 		error = got_repo_close(repo);
2028 		if (error)
2029 			return NULL;
2030 	}
2031 	if (error) {
2032 		khttp_puts(gw_trans->gw_req, "Error: ");
2033 		khttp_puts(gw_trans->gw_req, error->msg);
2034 		return NULL;
2035 	} else
2036 		return logs;
2037 }
2038 
2039 static char *
2040 gw_get_repo_tags(struct gw_trans *gw_trans, int limit, int tag_type)
2041 {
2042 	const struct got_error *error = NULL;
2043 	struct got_repository *repo = NULL;
2044 	struct got_reflist_head refs;
2045 	struct got_reflist_entry *re;
2046 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL,
2047 	     *age = NULL;
2048 	char *newline;
2049 	struct buf *diffbuf = NULL;
2050 	size_t newsize;
2051 
2052 	error = buf_alloc(&diffbuf, 0);
2053 	if (error)
2054 		return NULL;
2055 	SIMPLEQ_INIT(&refs);
2056 
2057 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2058 	if (error)
2059 		goto done;
2060 
2061 	error = got_ref_list(&refs, repo, "refs/tags", cmp_tags, repo);
2062 	if (error)
2063 		goto done;
2064 
2065 	SIMPLEQ_FOREACH(re, &refs, entry) {
2066 		const char *refname;
2067 		char *refstr, *tag_log0, *tag_log, *id_str;
2068 		time_t tagger_time;
2069 		struct got_object_id *id;
2070 		struct got_tag_object *tag;
2071 
2072 		refname = got_ref_get_name(re->ref);
2073 		if (strncmp(refname, "refs/tags/", 10) != 0)
2074 			continue;
2075 		refname += 10;
2076 		refstr = got_ref_to_str(re->ref);
2077 		if (refstr == NULL) {
2078 			error = got_error_from_errno("got_ref_to_str");
2079 			goto done;
2080 		}
2081 
2082 		error = got_ref_resolve(&id, repo, re->ref);
2083 		if (error)
2084 			goto done;
2085 		error = got_object_open_as_tag(&tag, repo, id);
2086 		free(id);
2087 		if (error)
2088 			goto done;
2089 
2090 		tagger_time = got_object_tag_get_tagger_time(tag);
2091 
2092 		error = got_object_id_str(&id_str,
2093 		    got_object_tag_get_object_id(tag));
2094 		if (error)
2095 			goto done;
2096 
2097 		tag_log0 = strdup(got_object_tag_get_message(tag));
2098 
2099 		if (tag_log0 == NULL) {
2100 			error = got_error_from_errno("strdup");
2101 			goto done;
2102 		}
2103 
2104 		tag_log = tag_log0;
2105 		while (*tag_log == '\n')
2106 			tag_log++;
2107 
2108 		switch (tag_type) {
2109 		case TAGBRIEF:
2110 			newline = strchr(tag_log, '\n');
2111 			if (newline)
2112 				*newline = '\0';
2113 
2114 			if ((asprintf(&age, "%s", gw_get_time_str(tagger_time,
2115 			    TM_DIFF))) == -1) {
2116 				error = got_error_from_errno("asprintf");
2117 				goto done;
2118 			}
2119 
2120 			if ((asprintf(&tags_navs_disp, tags_navs,
2121 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
2122 			    id_str, gw_trans->repo_name, id_str,
2123 			    gw_trans->repo_name, id_str)) == -1) {
2124 				error = got_error_from_errno("asprintf");
2125 				goto done;
2126 			}
2127 
2128 			if ((asprintf(&tag_row, tags_row, age, refname, tag_log,
2129 			    tags_navs_disp)) == -1) {
2130 				error = got_error_from_errno("asprintf");
2131 				goto done;
2132 			}
2133 
2134 			free(tags_navs_disp);
2135 			break;
2136 		case TAGFULL:
2137 			break;
2138 		default:
2139 			break;
2140 		}
2141 
2142 		got_object_tag_close(tag);
2143 
2144 		error = buf_puts(&newsize, diffbuf, tag_row);
2145 
2146 		free(id_str);
2147 		free(refstr);
2148 		free(age);
2149 		free(tag_log0);
2150 		free(tag_row);
2151 
2152 		if (error || (limit && --limit == 0))
2153 			break;
2154 	}
2155 
2156 	if (buf_len(diffbuf) > 0) {
2157 		error = buf_putc(diffbuf, '\0');
2158 		tags = strdup(buf_get(diffbuf));
2159 	}
2160 done:
2161 	buf_free(diffbuf);
2162 	got_ref_list_free(&refs);
2163 	if (repo)
2164 		got_repo_close(repo);
2165 	if (error)
2166 		return NULL;
2167 	else
2168 		return tags;
2169 }
2170 
2171 struct blame_line {
2172 	int annotated;
2173 	char *id_str;
2174 	char *committer;
2175 	char datebuf[11]; /* YYYY-MM-DD + NUL */
2176 };
2177 
2178 struct gw_blame_cb_args {
2179 	struct blame_line *lines;
2180 	int nlines;
2181 	int nlines_prec;
2182 	int lineno_cur;
2183 	off_t *line_offsets;
2184 	FILE *f;
2185 	struct got_repository *repo;
2186 	struct gw_trans *gw_trans;
2187 	struct buf *blamebuf;
2188 };
2189 
2190 static const struct got_error *
2191 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
2192 {
2193 	const struct got_error *err = NULL;
2194 	struct gw_blame_cb_args *a = arg;
2195 	struct blame_line *bline;
2196 	char *line = NULL;
2197 	size_t linesize = 0, newsize;
2198 	struct got_commit_object *commit = NULL;
2199 	off_t offset;
2200 	struct tm tm;
2201 	time_t committer_time;
2202 
2203 	if (nlines != a->nlines ||
2204 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
2205 		return got_error(GOT_ERR_RANGE);
2206 
2207 	if (lineno == -1)
2208 		return NULL; /* no change in this commit */
2209 
2210 	/* Annotate this line. */
2211 	bline = &a->lines[lineno - 1];
2212 	if (bline->annotated)
2213 		return NULL;
2214 	err = got_object_id_str(&bline->id_str, id);
2215 	if (err)
2216 		return err;
2217 
2218 	err = got_object_open_as_commit(&commit, a->repo, id);
2219 	if (err)
2220 		goto done;
2221 
2222 	bline->committer = strdup(got_object_commit_get_committer(commit));
2223 	if (bline->committer == NULL) {
2224 		err = got_error_from_errno("strdup");
2225 		goto done;
2226 	}
2227 
2228 	committer_time = got_object_commit_get_committer_time(commit);
2229 	if (localtime_r(&committer_time, &tm) == NULL)
2230 		return got_error_from_errno("localtime_r");
2231 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
2232 	    &tm) >= sizeof(bline->datebuf)) {
2233 		err = got_error(GOT_ERR_NO_SPACE);
2234 		goto done;
2235 	}
2236 	bline->annotated = 1;
2237 
2238 	/* Print lines annotated so far. */
2239 	bline = &a->lines[a->lineno_cur - 1];
2240 	if (!bline->annotated)
2241 		goto done;
2242 
2243 	offset = a->line_offsets[a->lineno_cur - 1];
2244 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
2245 		err = got_error_from_errno("fseeko");
2246 		goto done;
2247 	}
2248 
2249 	while (bline->annotated) {
2250 		char *smallerthan, *at, *nl, *committer, *blame_row = NULL,
2251 		     *line_escape = NULL;
2252 		size_t len;
2253 
2254 		if (getline(&line, &linesize, a->f) == -1) {
2255 			if (ferror(a->f))
2256 				err = got_error_from_errno("getline");
2257 			break;
2258 		}
2259 
2260 		committer = bline->committer;
2261 		smallerthan = strchr(committer, '<');
2262 		if (smallerthan && smallerthan[1] != '\0')
2263 			committer = smallerthan + 1;
2264 		at = strchr(committer, '@');
2265 		if (at)
2266 			*at = '\0';
2267 		len = strlen(committer);
2268 		if (len >= 9)
2269 			committer[8] = '\0';
2270 
2271 		nl = strchr(line, '\n');
2272 		if (nl)
2273 			*nl = '\0';
2274 
2275 		if (strcmp(line, "") != 0)
2276 			line_escape = strdup(gw_html_escape(line));
2277 		else
2278 			line_escape = strdup("");
2279 
2280 		asprintf(&blame_row, log_blame_line, a->nlines_prec,
2281 		    a->lineno_cur, bline->id_str, bline->datebuf, committer,
2282 		    line_escape);
2283 		a->lineno_cur++;
2284 		err = buf_puts(&newsize, a->blamebuf, blame_row);
2285 		if (err)
2286 			return err;
2287 
2288 		bline = &a->lines[a->lineno_cur - 1];
2289 		free(line_escape);
2290 		free(blame_row);
2291 	}
2292 done:
2293 	if (commit)
2294 		got_object_commit_close(commit);
2295 	free(line);
2296 	return err;
2297 }
2298 
2299 static char*
2300 gw_get_file_blame(struct gw_trans *gw_trans, char *commit_str)
2301 {
2302 	const struct got_error *error = NULL;
2303 	struct got_repository *repo = NULL;
2304 	struct got_object_id *obj_id = NULL;
2305 	struct got_object_id *commit_id = NULL;
2306 	struct got_blob_object *blob = NULL;
2307 	char *blame_html = NULL, *path = NULL, *in_repo_path = NULL,
2308 	     *folder = NULL;
2309 	struct gw_blame_cb_args bca;
2310 	int i, obj_type;
2311 	size_t filesize;
2312 
2313 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2314 	if (error)
2315 		goto done;
2316 
2317 	if (gw_trans->repo_folder != NULL) {
2318 		if ((asprintf(&folder, "%s/", gw_trans->repo_folder)) == -1) {
2319 			error = got_error_from_errno("asprintf");
2320 			goto done;
2321 		}
2322 	} else
2323 		folder = strdup("");
2324 
2325 	if ((asprintf(&path, "%s%s", folder, gw_trans->repo_file)) == -1) {
2326 		error = got_error_from_errno("asprintf");
2327 		goto done;
2328 	}
2329 	free(folder);
2330 
2331 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
2332 	if (error)
2333 		goto done;
2334 
2335 	error = got_repo_match_object_id(&commit_id, NULL, commit_str,
2336 	    GOT_OBJ_TYPE_COMMIT, 1, repo);
2337 	if (error)
2338 		goto done;
2339 
2340 	error = got_object_id_by_path(&obj_id, repo, commit_id, in_repo_path);
2341 	if (error)
2342 		goto done;
2343 
2344 	if (obj_id == NULL) {
2345 		error = got_error(GOT_ERR_NO_OBJ);
2346 		goto done;
2347 	}
2348 
2349 	error = got_object_get_type(&obj_type, repo, obj_id);
2350 	if (error)
2351 		goto done;
2352 
2353 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
2354 		error = got_error(GOT_ERR_OBJ_TYPE);
2355 		goto done;
2356 	}
2357 
2358 	error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
2359 	if (error)
2360 		goto done;
2361 
2362 	error = buf_alloc(&bca.blamebuf, 0);
2363 	if (error)
2364 		goto done;
2365 
2366 	bca.f = got_opentemp();
2367 	if (bca.f == NULL) {
2368 		error = got_error_from_errno("got_opentemp");
2369 		goto done;
2370 	}
2371 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
2372 	    &bca.line_offsets, bca.f, blob);
2373 	if (error || bca.nlines == 0)
2374 		goto done;
2375 
2376 	/* Don't include \n at EOF in the blame line count. */
2377 	if (bca.line_offsets[bca.nlines - 1] == filesize)
2378 		bca.nlines--;
2379 
2380 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
2381 	if (bca.lines == NULL) {
2382 		error = got_error_from_errno("calloc");
2383 		goto done;
2384 	}
2385 	bca.lineno_cur = 1;
2386 	bca.nlines_prec = 0;
2387 	i = bca.nlines;
2388 	while (i > 0) {
2389 		i /= 10;
2390 		bca.nlines_prec++;
2391 	}
2392 	bca.repo = repo;
2393 	bca.gw_trans = gw_trans;
2394 
2395 	error = got_blame(in_repo_path, commit_id, repo, gw_blame_cb, &bca,
2396 	    NULL, NULL);
2397 	if (buf_len(bca.blamebuf) > 0) {
2398 		error = buf_putc(bca.blamebuf, '\0');
2399 		blame_html = strdup(buf_get(bca.blamebuf));
2400 	}
2401 done:
2402 	free(bca.blamebuf);
2403 	free(in_repo_path);
2404 	free(commit_id);
2405 	free(obj_id);
2406 	free(path);
2407 
2408 	if (blob)
2409 		error = got_object_blob_close(blob);
2410 	if (repo)
2411 		error = got_repo_close(repo);
2412 	if (error)
2413 		return NULL;
2414 	if (bca.lines) {
2415 		for (i = 0; i < bca.nlines; i++) {
2416 			struct blame_line *bline = &bca.lines[i];
2417 			free(bline->id_str);
2418 			free(bline->committer);
2419 		}
2420 		free(bca.lines);
2421 	}
2422 	free(bca.line_offsets);
2423 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
2424 		error = got_error_from_errno("fclose");
2425 	if (error)
2426 		return NULL;
2427 	else
2428 		return blame_html;
2429 }
2430 
2431 static char*
2432 gw_get_repo_tree(struct gw_trans *gw_trans, char *commit_str)
2433 {
2434 	const struct got_error *error = NULL;
2435 	struct got_repository *repo = NULL;
2436 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
2437 	struct got_tree_object *tree = NULL;
2438 	struct buf *diffbuf = NULL;
2439 	size_t newsize;
2440 	char *tree_html = NULL, *path = NULL, *in_repo_path = NULL,
2441 	    *tree_row = NULL, *id_str;
2442 	int nentries, i;
2443 
2444 	error = buf_alloc(&diffbuf, 0);
2445 	if (error)
2446 		return NULL;
2447 
2448 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2449 	if (error)
2450 		goto done;
2451 
2452 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
2453 	if (error)
2454 		goto done;
2455 
2456 	if (gw_trans->repo_folder != NULL)
2457 		path = strdup(gw_trans->repo_folder);
2458 	else if (in_repo_path) {
2459 		free(path);
2460 		path = in_repo_path;
2461 	}
2462 
2463 	if (commit_str == NULL) {
2464 		struct got_reference *head_ref;
2465 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
2466 		if (error)
2467 			goto done;
2468 
2469 		error = got_ref_resolve(&commit_id, repo, head_ref);
2470 		got_ref_close(head_ref);
2471 
2472 	} else
2473 		error = got_repo_match_object_id(&commit_id, NULL, commit_str,
2474 		    GOT_OBJ_TYPE_COMMIT, 1, repo);
2475 	if (error)
2476 		goto done;
2477 
2478 	error = got_object_id_by_path(&tree_id, repo, commit_id, path);
2479 	if (error)
2480 		goto done;
2481 
2482 	error = got_object_open_as_tree(&tree, repo, tree_id);
2483 	if (error)
2484 		goto done;
2485 
2486 	nentries = got_object_tree_get_nentries(tree);
2487 
2488 	for (i = 0; i < nentries; i++) {
2489 		struct got_tree_entry *te;
2490 		const char *modestr = "";
2491 		char *id = NULL, *url_html = NULL;
2492 
2493 		te = got_object_tree_get_entry(tree, i);
2494 
2495 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
2496 		if (error)
2497 			goto done;
2498 
2499 		if ((asprintf(&id, "%s", id_str)) == -1) {
2500 			error = got_error_from_errno("asprintf");
2501 			free(id_str);
2502 			goto done;
2503 		}
2504 
2505 		mode_t mode = got_tree_entry_get_mode(te);
2506 
2507 		if (got_object_tree_entry_is_submodule(te))
2508 			modestr = "$";
2509 		else if (S_ISLNK(mode))
2510 			modestr = "@";
2511 		else if (S_ISDIR(mode))
2512 			modestr = "/";
2513 		else if (mode & S_IXUSR)
2514 			modestr = "*";
2515 
2516 		char *build_folder = NULL;
2517 		if (S_ISDIR(got_tree_entry_get_mode(te))) {
2518 			if (gw_trans->repo_folder != NULL) {
2519 				if ((asprintf(&build_folder, "%s/%s",
2520 				    gw_trans->repo_folder,
2521 				    got_tree_entry_get_name(te))) == -1) {
2522 					error =
2523 					    got_error_from_errno("asprintf");
2524 					goto done;
2525 				}
2526 			} else {
2527 				if (asprintf(&build_folder, "%s",
2528 				    got_tree_entry_get_name(te)) == -1)
2529 					goto done;
2530 			}
2531 
2532 			if ((asprintf(&url_html, folder_html,
2533 			    gw_trans->repo_name, gw_trans->action_name,
2534 			    gw_trans->commit, build_folder,
2535 			    got_tree_entry_get_name(te), modestr)) == -1) {
2536 				error = got_error_from_errno("asprintf");
2537 				goto done;
2538 			}
2539 		} else {
2540 			if (gw_trans->repo_folder != NULL) {
2541 				if ((asprintf(&build_folder, "%s",
2542 				    gw_trans->repo_folder)) == -1) {
2543 					error =
2544 					    got_error_from_errno("asprintf");
2545 					goto done;
2546 				}
2547 			} else
2548 				build_folder = strdup("");
2549 
2550 			if ((asprintf(&url_html, file_html, gw_trans->repo_name,
2551 			    "blame", gw_trans->commit,
2552 			    got_tree_entry_get_name(te), build_folder,
2553 			    got_tree_entry_get_name(te), modestr)) == -1) {
2554 				error = got_error_from_errno("asprintf");
2555 				goto done;
2556 			}
2557 		}
2558 		free(build_folder);
2559 
2560 		if (error)
2561 			goto done;
2562 
2563 		if ((asprintf(&tree_row, trees_row, "", url_html)) == -1) {
2564 			error = got_error_from_errno("asprintf");
2565 			goto done;
2566 		}
2567 		error = buf_puts(&newsize, diffbuf, tree_row);
2568 		if (error)
2569 			goto done;
2570 
2571 		free(id);
2572 		free(id_str);
2573 		free(url_html);
2574 		free(tree_row);
2575 	}
2576 
2577 	if (buf_len(diffbuf) > 0) {
2578 		error = buf_putc(diffbuf, '\0');
2579 		tree_html = strdup(buf_get(diffbuf));
2580 	}
2581 done:
2582 	if (tree)
2583 		got_object_tree_close(tree);
2584 	if (repo)
2585 		got_repo_close(repo);
2586 
2587 	free(in_repo_path);
2588 	free(tree_id);
2589 	free(diffbuf);
2590 	if (error)
2591 		return NULL;
2592 	else
2593 		return tree_html;
2594 }
2595 
2596 static char *
2597 gw_get_repo_heads(struct gw_trans *gw_trans)
2598 {
2599 	const struct got_error *error = NULL;
2600 	struct got_repository *repo = NULL;
2601 	struct got_reflist_head refs;
2602 	struct got_reflist_entry *re;
2603 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
2604 	struct buf *diffbuf = NULL;
2605 	size_t newsize;
2606 
2607 	error = buf_alloc(&diffbuf, 0);
2608 	if (error)
2609 		return NULL;
2610 
2611 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2612 	if (error)
2613 		goto done;
2614 
2615 	SIMPLEQ_INIT(&refs);
2616 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
2617 	    NULL);
2618 	if (error)
2619 		goto done;
2620 
2621 	SIMPLEQ_FOREACH(re, &refs, entry) {
2622 		char *refname;
2623 
2624 		refname = strdup(got_ref_get_name(re->ref));
2625 		if (refname == NULL) {
2626 			error = got_error_from_errno("got_ref_to_str");
2627 			goto done;
2628 		}
2629 
2630 		if (strncmp(refname, "refs/heads/", 11) != 0) {
2631 			free(refname);
2632 			continue;
2633 		}
2634 
2635 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path, refname,
2636 		    TM_DIFF);
2637 
2638 		if ((asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
2639 		    refname, gw_trans->repo_name, refname,
2640 		    gw_trans->repo_name, refname, gw_trans->repo_name,
2641 		    refname)) == -1) {
2642 			error = got_error_from_errno("asprintf");
2643 			goto done;
2644 		}
2645 
2646 		if (strncmp(refname, "refs/heads/", 11) == 0)
2647 			refname += 11;
2648 
2649 		if ((asprintf(&head_row, heads_row, age, refname,
2650 		    head_navs_disp)) == -1) {
2651 			error = got_error_from_errno("asprintf");
2652 			goto done;
2653 		}
2654 
2655 		error = buf_puts(&newsize, diffbuf, head_row);
2656 
2657 		free(head_navs_disp);
2658 		free(head_row);
2659 	}
2660 
2661 	if (buf_len(diffbuf) > 0) {
2662 		error = buf_putc(diffbuf, '\0');
2663 		heads = strdup(buf_get(diffbuf));
2664 	}
2665 done:
2666 	buf_free(diffbuf);
2667 	got_ref_list_free(&refs);
2668 	if (repo)
2669 		got_repo_close(repo);
2670 	if (error)
2671 		return NULL;
2672 	else
2673 		return heads;
2674 }
2675 
2676 static char *
2677 gw_get_got_link(struct gw_trans *gw_trans)
2678 {
2679 	char *link;
2680 
2681 	if ((asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
2682 	    gw_trans->gw_conf->got_logo)) == -1)
2683 		return NULL;
2684 
2685 	return link;
2686 }
2687 
2688 static char *
2689 gw_get_site_link(struct gw_trans *gw_trans)
2690 {
2691 	char *link, *repo = "", *action = "";
2692 
2693 	if (gw_trans->repo_name != NULL)
2694 		if ((asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
2695 		    "</a>", gw_trans->repo_name, gw_trans->repo_name)) == -1)
2696 			return NULL;
2697 
2698 	if (gw_trans->action_name != NULL)
2699 		if ((asprintf(&action, " / %s", gw_trans->action_name)) == -1)
2700 			return NULL;
2701 
2702 	if ((asprintf(&link, site_link, GOTWEB,
2703 	    gw_trans->gw_conf->got_site_link, repo, action)) == -1)
2704 		return NULL;
2705 
2706 	return link;
2707 }
2708 
2709 static char *
2710 gw_colordiff_line(char *buf)
2711 {
2712 	const struct got_error *error = NULL;
2713 	char *colorized_line = NULL, *div_diff_line_div = NULL, *color = NULL;
2714 	struct buf *diffbuf = NULL;
2715 	size_t newsize;
2716 
2717 	error = buf_alloc(&diffbuf, 0);
2718 	if (error)
2719 		return NULL;
2720 
2721 	if (strncmp(buf, "-", 1) == 0)
2722 		color = "diff_minus";
2723 	if (strncmp(buf, "+", 1) == 0)
2724 		color = "diff_plus";
2725 	if (strncmp(buf, "@@", 2) == 0)
2726 		color = "diff_chunk_header";
2727 	if (strncmp(buf, "@@", 2) == 0)
2728 		color = "diff_chunk_header";
2729 	if (strncmp(buf, "commit +", 8) == 0)
2730 		color = "diff_meta";
2731 	if (strncmp(buf, "commit -", 8) == 0)
2732 		color = "diff_meta";
2733 	if (strncmp(buf, "blob +", 6) == 0)
2734 		color = "diff_meta";
2735 	if (strncmp(buf, "blob -", 6) == 0)
2736 		color = "diff_meta";
2737 	if (strncmp(buf, "file +", 6) == 0)
2738 		color = "diff_meta";
2739 	if (strncmp(buf, "file -", 6) == 0)
2740 		color = "diff_meta";
2741 	if (strncmp(buf, "from:", 5) == 0)
2742 		color = "diff_author";
2743 	if (strncmp(buf, "via:", 4) == 0)
2744 		color = "diff_author";
2745 	if (strncmp(buf, "date:", 5) == 0)
2746 		color = "diff_date";
2747 
2748 	if ((asprintf(&div_diff_line_div, div_diff_line, color)) == -1)
2749 		return NULL;
2750 
2751 	error = buf_puts(&newsize, diffbuf, div_diff_line_div);
2752 	if (error)
2753 		return NULL;
2754 
2755 	error = buf_puts(&newsize, diffbuf, buf);
2756 	if (error)
2757 		return NULL;
2758 
2759 	if (buf_len(diffbuf) > 0) {
2760 		error = buf_putc(diffbuf, '\0');
2761 		colorized_line = strdup(buf_get(diffbuf));
2762 	}
2763 
2764 	free(diffbuf);
2765 	free(div_diff_line_div);
2766 	return colorized_line;
2767 }
2768 
2769 static char *
2770 gw_html_escape(const char *html)
2771 {
2772 	char *escaped_str = NULL, *buf;
2773 	char c[1];
2774 	size_t sz, i, buff_sz = 2048;
2775 
2776 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2777 		return NULL;
2778 
2779 	if (html == NULL)
2780 		return NULL;
2781 	else
2782 		if ((sz = strlen(html)) == 0)
2783 			return NULL;
2784 
2785 	/* only work with buff_sz */
2786 	if (buff_sz < sz)
2787 		sz = buff_sz;
2788 
2789 	for (i = 0; i < sz; i++) {
2790 		c[0] = html[i];
2791 		switch (c[0]) {
2792 		case ('>'):
2793 			strcat(buf, "&gt;");
2794 			break;
2795 		case ('&'):
2796 			strcat(buf, "&amp;");
2797 			break;
2798 		case ('<'):
2799 			strcat(buf, "&lt;");
2800 			break;
2801 		case ('"'):
2802 			strcat(buf, "&quot;");
2803 			break;
2804 		case ('\''):
2805 			strcat(buf, "&apos;");
2806 			break;
2807 		case ('\n'):
2808 			strcat(buf, "<br />");
2809 		default:
2810 			strcat(buf, &c[0]);
2811 			break;
2812 		}
2813 	}
2814 	asprintf(&escaped_str, "%s", buf);
2815 	free(buf);
2816 	return escaped_str;
2817 }
2818 
2819 int
2820 main()
2821 {
2822 	const struct got_error *error = NULL;
2823 	struct gw_trans *gw_trans;
2824 	struct gw_dir *dir = NULL, *tdir;
2825 	const char *page = "index";
2826 	int gw_malloc = 1;
2827 
2828 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
2829 		errx(1, "malloc");
2830 
2831 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2832 		errx(1, "malloc");
2833 
2834 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2835 		errx(1, "malloc");
2836 
2837 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2838 		errx(1, "malloc");
2839 
2840 	if (KCGI_OK != khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX,
2841 	    &page, 1, 0))
2842 		errx(1, "khttp_parse");
2843 
2844 	if ((gw_trans->gw_conf =
2845 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2846 		gw_malloc = 0;
2847 		error = got_error_from_errno("malloc");
2848 		goto err;
2849 	}
2850 
2851 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
2852 	    NULL) == -1) {
2853 		error = got_error_from_errno("pledge");
2854 		goto err;
2855 	}
2856 
2857 	TAILQ_INIT(&gw_trans->gw_dirs);
2858 
2859 	gw_trans->page = 0;
2860 	gw_trans->repos_total = 0;
2861 	gw_trans->repo_path = NULL;
2862 	gw_trans->commit = NULL;
2863 	gw_trans->headref = strdup(GOT_REF_HEAD);
2864 	gw_trans->mime = KMIME_TEXT_HTML;
2865 	gw_trans->gw_tmpl->key = gw_templs;
2866 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2867 	gw_trans->gw_tmpl->arg = gw_trans;
2868 	gw_trans->gw_tmpl->cb = gw_template;
2869 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2870 
2871 err:
2872 	if (error) {
2873 		gw_trans->mime = KMIME_TEXT_PLAIN;
2874 		gw_trans->action = GW_ERR;
2875 		gw_display_index(gw_trans, error);
2876 		goto done;
2877 	}
2878 
2879 	error = gw_parse_querystring(gw_trans);
2880 	if (error)
2881 		goto err;
2882 
2883 	gw_display_index(gw_trans, error);
2884 
2885 done:
2886 	if (gw_malloc) {
2887 		free(gw_trans->gw_conf->got_repos_path);
2888 		free(gw_trans->gw_conf->got_www_path);
2889 		free(gw_trans->gw_conf->got_site_name);
2890 		free(gw_trans->gw_conf->got_site_owner);
2891 		free(gw_trans->gw_conf->got_site_link);
2892 		free(gw_trans->gw_conf->got_logo);
2893 		free(gw_trans->gw_conf->got_logo_url);
2894 		free(gw_trans->gw_conf);
2895 		free(gw_trans->commit);
2896 		free(gw_trans->repo_path);
2897 		free(gw_trans->repo_name);
2898 		free(gw_trans->repo_file);
2899 		free(gw_trans->action_name);
2900 		free(gw_trans->headref);
2901 
2902 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
2903 			free(dir->name);
2904 			free(dir->description);
2905 			free(dir->age);
2906 			free(dir->url);
2907 			free(dir->path);
2908 			free(dir);
2909 		}
2910 
2911 	}
2912 
2913 	khttp_free(gw_trans->gw_req);
2914 	return EXIT_SUCCESS;
2915 }