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Date:: Tue Jan 28 09:51:38 2020 UTC
Message:: display 'No repositories found in $got_repos_path" if gotweb finds no repos
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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(headers, gw_header)	 gw_headers;
58 	TAILQ_HEAD(dirs, gw_dir)	 gw_dirs;
59 	struct gw_dir		*gw_dir;
60 	struct gotweb_conf	*gw_conf;
61 	struct ktemplate	*gw_tmpl;
62 	struct khtmlreq		*gw_html_req;
63 	struct kreq		*gw_req;
64 	char			*repo_name;
65 	char			*repo_path;
66 	char			*commit;
67 	char			*repo_file;
68 	char			*repo_folder;
69 	char			*action_name;
70 	char			*headref;
71 	unsigned int		 action;
72 	unsigned int		 page;
73 	unsigned int		 repos_total;
74 	enum kmime		 mime;
75 };
76 
77 struct gw_header {
78 	TAILQ_ENTRY(gw_header)		 entry;
79 	struct got_repository		*repo;
80 	struct got_reflist_head		 refs;
81 	struct got_commit_object	*commit;
82 	struct got_object_id		*id;
83 	char				*path;
84 
85 	char			*refs_str;
86 	char			*commit_id; /* id_str1 */
87 	char			*parent_id; /* id_str2 */
88 	char			*tree_id;
89 	char			*author;
90 	char			*committer;
91 	char			*commit_msg;
92 	time_t			 committer_time;
93 };
94 
95 struct gw_dir {
96 	TAILQ_ENTRY(gw_dir)	 entry;
97 	char			*name;
98 	char			*owner;
99 	char			*description;
100 	char			*url;
101 	char			*age;
102 	char			*path;
103 };
104 
105 enum gw_key {
106 	KEY_ACTION,
107 	KEY_COMMIT_ID,
108 	KEY_FILE,
109 	KEY_FOLDER,
110 	KEY_HEADREF,
111 	KEY_PAGE,
112 	KEY_PATH,
113 	KEY__ZMAX
114 };
115 
116 enum gw_tmpl {
117 	TEMPL_CONTENT,
118 	TEMPL_HEAD,
119 	TEMPL_HEADER,
120 	TEMPL_SEARCH,
121 	TEMPL_SITEPATH,
122 	TEMPL_SITEOWNER,
123 	TEMPL_TITLE,
124 	TEMPL__MAX
125 };
126 
127 enum gw_ref_tm {
128 	TM_DIFF,
129 	TM_LONG,
130 };
131 
132 enum gw_tags {
133 	TAGBRIEF,
134 	TAGFULL,
135 };
136 
137 static const char *const gw_templs[TEMPL__MAX] = {
138 	"content",
139 	"head",
140 	"header",
141 	"search",
142 	"sitepath",
143 	"siteowner",
144 	"title",
145 };
146 
147 static const struct kvalid gw_keys[KEY__ZMAX] = {
148 	{ kvalid_stringne,	"action" },
149 	{ kvalid_stringne,	"commit" },
150 	{ kvalid_stringne,	"file" },
151 	{ kvalid_stringne,	"folder" },
152 	{ kvalid_stringne,	"headref" },
153 	{ kvalid_int,		"page" },
154 	{ kvalid_stringne,	"path" },
155 };
156 
157 static struct gw_dir		*gw_init_gw_dir(char *);
158 static struct gw_header		*gw_init_header(void);
159 
160 static char			*gw_get_repo_description(struct gw_trans *,
161 				    char *);
162 static char			*gw_get_repo_owner(struct gw_trans *,
163 				    char *);
164 static char			*gw_get_time_str(time_t, int);
165 static char			*gw_get_repo_age(struct gw_trans *,
166 				    char *, char *, int);
167 static char			*gw_get_file_blame(struct gw_trans *);
168 static char			*gw_get_repo_tree(struct gw_trans *);
169 static char			*gw_get_diff(struct gw_trans *,
170 				    struct gw_header *);
171 static char			*gw_get_repo_tags(struct gw_trans *, int, int);
172 static char			*gw_get_repo_heads(struct gw_trans *);
173 static char			*gw_get_clone_url(struct gw_trans *, char *);
174 static char			*gw_get_got_link(struct gw_trans *);
175 static char			*gw_get_site_link(struct gw_trans *);
176 static char			*gw_html_escape(const char *);
177 static char			*gw_colordiff_line(char *);
178 
179 static char			*gw_gen_commit_header(char *, char*);
180 static char			*gw_gen_diff_header(char *, char*);
181 static char			*gw_gen_author_header(char *);
182 static char			*gw_gen_committer_header(char *);
183 static char			*gw_gen_age_header(char *);
184 static char			*gw_gen_commit_msg_header(char *);
185 static char			*gw_gen_tree_header(char *);
186 
187 static void			 gw_free_headers(struct gw_header *);
188 static void			 gw_display_open(struct gw_trans *, enum khttp,
189 				    enum kmime);
190 static void			 gw_display_index(struct gw_trans *,
191 				    const struct got_error *);
192 
193 static int			 gw_template(size_t, void *);
194 
195 static const struct got_error*	 gw_get_header(struct gw_trans *,
196 				    struct gw_header *, int);
197 static const struct got_error*	 gw_get_commits(struct gw_trans *,
198 				    struct gw_header *, int);
199 static const struct got_error*	 gw_get_commit(struct gw_trans *,
200 				    struct gw_header *);
201 static const struct got_error*	 gw_apply_unveil(const char *, const char *);
202 static const struct got_error*	 gw_blame_cb(void *, int, int,
203 				    struct got_object_id *);
204 static const struct got_error*	 gw_load_got_paths(struct gw_trans *);
205 static const struct got_error*	 gw_load_got_path(struct gw_trans *,
206 				    struct gw_dir *);
207 static const struct got_error*	 gw_parse_querystring(struct gw_trans *);
208 
209 static const struct got_error*	 gw_blame(struct gw_trans *);
210 static const struct got_error*	 gw_diff(struct gw_trans *);
211 static const struct got_error*	 gw_index(struct gw_trans *);
212 static const struct got_error*	 gw_commits(struct gw_trans *);
213 static const struct got_error*	 gw_briefs(struct gw_trans *);
214 static const struct got_error*	 gw_summary(struct gw_trans *);
215 static const struct got_error*	 gw_tree(struct gw_trans *);
216 
217 struct gw_query_action {
218 	unsigned int		 func_id;
219 	const char		*func_name;
220 	const struct got_error	*(*func_main)(struct gw_trans *);
221 	char			*template;
222 };
223 
224 enum gw_query_actions {
225 	GW_BLAME,
226 	GW_BRIEFS,
227 	GW_COMMITS,
228 	GW_DIFF,
229 	GW_ERR,
230 	GW_INDEX,
231 	GW_SUMMARY,
232 	GW_TREE,
233 };
234 
235 static struct gw_query_action gw_query_funcs[] = {
236 	{ GW_BLAME,	"blame",	gw_blame,	"gw_tmpl/blame.tmpl" },
237 	{ GW_BRIEFS,	"briefs",	gw_briefs,	"gw_tmpl/briefs.tmpl" },
238 	{ GW_COMMITS,	"commits",	gw_commits,	"gw_tmpl/commit.tmpl" },
239 	{ GW_DIFF,	"diff",		gw_diff,	"gw_tmpl/diff.tmpl" },
240 	{ GW_ERR,	 NULL,		NULL,		"gw_tmpl/err.tmpl" },
241 	{ GW_INDEX,	"index",	gw_index,	"gw_tmpl/index.tmpl" },
242 	{ GW_SUMMARY,	"summary",	gw_summary,	"gw_tmpl/summry.tmpl" },
243 	{ GW_TREE,	"tree",		gw_tree,	"gw_tmpl/tree.tmpl" },
244 };
245 
246 static const struct got_error *
247 gw_apply_unveil(const char *repo_path, const char *repo_file)
248 {
249 	const struct got_error *err;
250 
251 	if (repo_path && repo_file) {
252 		char *full_path;
253 		if ((asprintf(&full_path, "%s/%s", repo_path, repo_file)) == -1)
254 			return got_error_from_errno("asprintf unveil");
255 		if (unveil(full_path, "r") != 0)
256 			return got_error_from_errno2("unveil", full_path);
257 	}
258 
259 	if (repo_path && unveil(repo_path, "r") != 0)
260 		return got_error_from_errno2("unveil", repo_path);
261 
262 	if (unveil("/tmp", "rwc") != 0)
263 		return got_error_from_errno2("unveil", "/tmp");
264 
265 	err = got_privsep_unveil_exec_helpers();
266 	if (err != NULL)
267 		return err;
268 
269 	if (unveil(NULL, NULL) != 0)
270 		return got_error_from_errno("unveil");
271 
272 	return NULL;
273 }
274 
275 static const struct got_error *
276 gw_blame(struct gw_trans *gw_trans)
277 {
278 	const struct got_error *error = NULL;
279 	struct gw_header *header = NULL;
280 	char *blame = NULL, *blame_html = NULL, *blame_html_disp = NULL;
281 
282 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
283 	    NULL) == -1)
284 		return got_error_from_errno("pledge");
285 
286 	if ((header = gw_init_header()) == NULL)
287 		return got_error_from_errno("malloc");
288 
289 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
290 	if (error)
291 		return error;
292 
293 	error = gw_get_header(gw_trans, header, 1);
294 	if (error)
295 		return error;
296 
297 	blame_html = gw_get_file_blame(gw_trans);
298 
299 	if (blame_html == NULL)
300 		blame_html = strdup("");
301 
302 	if ((asprintf(&blame_html_disp, blame_header,
303 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
304 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
305 	    blame_html)) == -1)
306 		return got_error_from_errno("asprintf");
307 
308 	if ((asprintf(&blame, blame_wrapper, blame_html_disp)) == -1)
309 		return got_error_from_errno("asprintf");
310 
311 	khttp_puts(gw_trans->gw_req, blame);
312 	got_ref_list_free(&header->refs);
313 	gw_free_headers(header);
314 	free(blame_html_disp);
315 	free(blame_html);
316 	free(blame);
317 	return error;
318 }
319 
320 static const struct got_error *
321 gw_diff(struct gw_trans *gw_trans)
322 {
323 	const struct got_error *error = NULL;
324 	struct gw_header *header = NULL;
325 	char *diff = NULL, *diff_html = NULL, *diff_html_disp = NULL;
326 
327 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
328 	    NULL) == -1)
329 		return got_error_from_errno("pledge");
330 
331 	if ((header = malloc(sizeof(struct gw_header))) == NULL)
332 		return got_error_from_errno("malloc");
333 
334 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
335 	if (error)
336 		return error;
337 
338 	error = gw_get_header(gw_trans, header, 1);
339 	if (error)
340 		return error;
341 
342 	diff_html = gw_get_diff(gw_trans, header);
343 
344 	if (diff_html == NULL)
345 		diff_html = strdup("");
346 
347 	if ((asprintf(&diff_html_disp, diff_header,
348 	    gw_gen_diff_header(header->parent_id, header->commit_id),
349 	    gw_gen_commit_header(header->commit_id, header->refs_str),
350 	    gw_gen_tree_header(header->tree_id),
351 	    gw_gen_author_header(header->author),
352 	    gw_gen_committer_header(header->committer),
353 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
354 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
355 	    diff_html)) == -1)
356 		return got_error_from_errno("asprintf");
357 
358 	if ((asprintf(&diff, diff_wrapper, diff_html_disp)) == -1)
359 		return got_error_from_errno("asprintf");
360 
361 	khttp_puts(gw_trans->gw_req, diff);
362 	got_ref_list_free(&header->refs);
363 	gw_free_headers(header);
364 	free(diff_html_disp);
365 	free(diff_html);
366 	free(diff);
367 	return error;
368 }
369 
370 static const struct got_error *
371 gw_index(struct gw_trans *gw_trans)
372 {
373 	const struct got_error *error = NULL;
374 	struct gw_dir *gw_dir = NULL;
375 	char *html, *navs, *next, *prev;
376 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
377 
378 	if (pledge("stdio rpath proc exec sendfd unveil",
379 	    NULL) == -1) {
380 		error = got_error_from_errno("pledge");
381 		return error;
382 	}
383 
384 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
385 	if (error)
386 		return error;
387 
388 	error = gw_load_got_paths(gw_trans);
389 	if (error)
390 		return error;
391 
392 	khttp_puts(gw_trans->gw_req, index_projects_header);
393 
394 	if (TAILQ_EMPTY(&gw_trans->gw_dirs)) {
395 		if (asprintf(&html, index_projects_empty,
396 		    gw_trans->gw_conf->got_repos_path) == -1)
397 			return got_error_from_errno("asprintf");
398 		khttp_puts(gw_trans->gw_req, html);
399 		free(html);
400 		return NULL;
401 	}
402 
403 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
404 		dir_c++;
405 
406 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
407 		if (gw_trans->page > 0 && (gw_trans->page *
408 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
409 			prev_disp++;
410 			continue;
411 		}
412 
413 		prev_disp++;
414 
415 		if (error)
416 			return error;
417 		if((asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
418 		    gw_dir->name, gw_dir->name)) == -1)
419 			return got_error_from_errno("asprintf");
420 
421 		if ((asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
422 		    gw_dir->description, gw_dir->owner, gw_dir->age,
423 		    navs)) == -1)
424 			return got_error_from_errno("asprintf");
425 
426 		khttp_puts(gw_trans->gw_req, html);
427 
428 		free(navs);
429 		free(html);
430 
431 		if (gw_trans->gw_conf->got_max_repos_display == 0)
432 			continue;
433 
434 		if (next_disp == gw_trans->gw_conf->got_max_repos_display)
435 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
436 		else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
437 		    (gw_trans->page > 0) &&
438 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
439 		    prev_disp == gw_trans->repos_total))
440 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
441 
442 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
443 		    (gw_trans->page > 0) &&
444 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
445 		    prev_disp == gw_trans->repos_total)) {
446 			if ((asprintf(&prev, nav_prev,
447 			    gw_trans->page - 1)) == -1)
448 				return got_error_from_errno("asprintf");
449 			khttp_puts(gw_trans->gw_req, prev);
450 			free(prev);
451 		}
452 
453 		khttp_puts(gw_trans->gw_req, div_end);
454 
455 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
456 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
457 		    dir_c != (gw_trans->page + 1) *
458 		    gw_trans->gw_conf->got_max_repos_display) {
459 			if ((asprintf(&next, nav_next,
460 			    gw_trans->page + 1)) == -1)
461 				return got_error_from_errno("calloc");
462 			khttp_puts(gw_trans->gw_req, next);
463 			khttp_puts(gw_trans->gw_req, div_end);
464 			free(next);
465 			next_disp = 0;
466 			break;
467 		}
468 
469 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
470 		    (gw_trans->page > 0) &&
471 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
472 		    prev_disp == gw_trans->repos_total))
473 			khttp_puts(gw_trans->gw_req, div_end);
474 
475 		next_disp++;
476 	}
477 	return error;
478 }
479 
480 static const struct got_error *
481 gw_commits(struct gw_trans *gw_trans)
482 {
483 	const struct got_error *error = NULL;
484 	char *commits_html, *commits_navs_html;
485 	struct gw_header *header = NULL, *n_header = NULL;
486 
487 	if ((header = malloc(sizeof(struct gw_header))) == NULL)
488 		return got_error_from_errno("malloc");
489 
490 	if (pledge("stdio rpath proc exec sendfd unveil",
491 	    NULL) == -1) {
492 		error = got_error_from_errno("pledge");
493 		return error;
494 	}
495 
496 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
497 	if (error)
498 		return error;
499 
500 	error = gw_get_header(gw_trans, header,
501 	    gw_trans->gw_conf->got_max_commits_display);
502 
503 	khttp_puts(gw_trans->gw_req, commits_wrapper);
504 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
505 		if ((asprintf(&commits_navs_html, commits_navs,
506 		    gw_trans->repo_name, n_header->commit_id,
507 		    gw_trans->repo_name, n_header->commit_id,
508 		    gw_trans->repo_name, n_header->commit_id)) == -1)
509 			return got_error_from_errno("asprintf");
510 
511 		if ((asprintf(&commits_html, commits_line,
512 	    	    gw_gen_commit_header(n_header->commit_id,
513 		        n_header->refs_str),
514 	    	    gw_gen_author_header(n_header->author),
515 	    	    gw_gen_committer_header(n_header->committer),
516 		    gw_gen_age_header(gw_get_time_str(n_header->committer_time,
517 		        TM_LONG)), gw_html_escape(n_header->commit_msg),
518 		    commits_navs_html)) == -1)
519 			return got_error_from_errno("asprintf");
520 		khttp_puts(gw_trans->gw_req, commits_html);
521 	}
522 	khttp_puts(gw_trans->gw_req, div_end);
523 
524 	got_ref_list_free(&header->refs);
525 	gw_free_headers(header);
526 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
527 		gw_free_headers(n_header);
528 	return error;
529 }
530 
531 static const struct got_error *
532 gw_briefs(struct gw_trans *gw_trans)
533 {
534 	const struct got_error *error = NULL;
535 	char *briefs_html = NULL, *briefs_navs_html = NULL, *newline;
536 	struct gw_header *header = NULL, *n_header = NULL;
537 
538 	if ((header = malloc(sizeof(struct gw_header))) == NULL)
539 		return got_error_from_errno("malloc");
540 
541 	if (pledge("stdio rpath proc exec sendfd unveil",
542 	    NULL) == -1) {
543 		error = got_error_from_errno("pledge");
544 		return error;
545 	}
546 
547 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
548 	if (error)
549 		return error;
550 
551 	if (gw_trans->action == GW_SUMMARY)
552 		error = gw_get_header(gw_trans, header, D_MAXSLCOMMDISP);
553 	else
554 		error = gw_get_header(gw_trans, header,
555 		    gw_trans->gw_conf->got_max_commits_display);
556 
557 	khttp_puts(gw_trans->gw_req, briefs_wrapper);
558 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
559 		if ((asprintf(&briefs_navs_html, briefs_navs,
560 		    gw_trans->repo_name, n_header->commit_id,
561 		    gw_trans->repo_name, n_header->commit_id,
562 		    gw_trans->repo_name, n_header->commit_id)) == -1)
563 			return got_error_from_errno("asprintf");
564 		newline = strchr(n_header->commit_msg, '\n');
565 		if (newline)
566 			*newline = '\0';
567 		if ((asprintf(&briefs_html, briefs_line,
568 		    gw_get_time_str(n_header->committer_time, TM_DIFF),
569 		    n_header->author, gw_html_escape(n_header->commit_msg),
570 		    briefs_navs_html)) == -1)
571 			return got_error_from_errno("asprintf");
572 		khttp_puts(gw_trans->gw_req, briefs_html);
573 	}
574 	khttp_puts(gw_trans->gw_req, div_end);
575 
576 	got_ref_list_free(&header->refs);
577 	gw_free_headers(header);
578 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
579 		gw_free_headers(n_header);
580 	return error;
581 }
582 
583 static const struct got_error *
584 gw_summary(struct gw_trans *gw_trans)
585 {
586 	const struct got_error *error = NULL;
587 	char *description_html, *repo_owner_html, *repo_age_html,
588 	     *cloneurl_html, *tags, *heads, *tags_html,
589 	     *heads_html, *age;
590 
591 	if (pledge("stdio rpath proc exec sendfd unveil",
592 	    NULL) == -1) {
593 		error = got_error_from_errno("pledge");
594 		return error;
595 	}
596 
597 	/* unveil is applied with gw_briefs below */
598 
599 	khttp_puts(gw_trans->gw_req, summary_wrapper);
600 	if (gw_trans->gw_conf->got_show_repo_description) {
601 		if (gw_trans->gw_dir->description != NULL &&
602 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
603 			if ((asprintf(&description_html, description,
604 			    gw_trans->gw_dir->description)) == -1)
605 				return got_error_from_errno("asprintf");
606 
607 			khttp_puts(gw_trans->gw_req, description_html);
608 			free(description_html);
609 		}
610 	}
611 
612 	if (gw_trans->gw_conf->got_show_repo_owner) {
613 		if (gw_trans->gw_dir->owner != NULL &&
614 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
615 			if ((asprintf(&repo_owner_html, repo_owner,
616 			    gw_trans->gw_dir->owner)) == -1)
617 				return got_error_from_errno("asprintf");
618 
619 			khttp_puts(gw_trans->gw_req, repo_owner_html);
620 			free(repo_owner_html);
621 		}
622 	}
623 
624 	if (gw_trans->gw_conf->got_show_repo_age) {
625 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path,
626 		    "refs/heads", TM_LONG);
627 		if (age != NULL && (strcmp(age, "") != 0)) {
628 			if ((asprintf(&repo_age_html, last_change, age)) == -1)
629 				return got_error_from_errno("asprintf");
630 
631 			khttp_puts(gw_trans->gw_req, repo_age_html);
632 			free(repo_age_html);
633 			free(age);
634 		}
635 	}
636 
637 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
638 		if (gw_trans->gw_dir->url != NULL &&
639 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
640 			if ((asprintf(&cloneurl_html, cloneurl,
641 			    gw_trans->gw_dir->url)) == -1)
642 				return got_error_from_errno("asprintf");
643 
644 			khttp_puts(gw_trans->gw_req, cloneurl_html);
645 			free(cloneurl_html);
646 		}
647 	}
648 	khttp_puts(gw_trans->gw_req, div_end);
649 
650 	error = gw_briefs(gw_trans);
651 	if (error)
652 		return error;
653 
654 	tags = gw_get_repo_tags(gw_trans, D_MAXSLCOMMDISP, TAGBRIEF);
655 	heads = gw_get_repo_heads(gw_trans);
656 
657 	if (tags != NULL && strcmp(tags, "") != 0) {
658 		if ((asprintf(&tags_html, summary_tags,
659 		    tags)) == -1)
660 			return got_error_from_errno("asprintf");
661 		khttp_puts(gw_trans->gw_req, tags_html);
662 		free(tags_html);
663 		free(tags);
664 	}
665 
666 	if (heads != NULL && strcmp(heads, "") != 0) {
667 		if ((asprintf(&heads_html, summary_heads,
668 		    heads)) == -1)
669 			return got_error_from_errno("asprintf");
670 		khttp_puts(gw_trans->gw_req, heads_html);
671 		free(heads_html);
672 		free(heads);
673 	}
674 	return error;
675 }
676 
677 static const struct got_error *
678 gw_tree(struct gw_trans *gw_trans)
679 {
680 	const struct got_error *error = NULL;
681 	struct gw_header *header = NULL;
682 	char *tree = NULL, *tree_html = NULL, *tree_html_disp = NULL;
683 
684 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
685 		return got_error_from_errno("pledge");
686 
687 	if ((header = malloc(sizeof(struct gw_header))) == NULL)
688 		return got_error_from_errno("malloc");
689 
690 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
691 	if (error)
692 		return error;
693 
694 	error = gw_get_header(gw_trans, header, 1);
695 	if (error)
696 		return error;
697 
698 	tree_html = gw_get_repo_tree(gw_trans);
699 
700 	if (tree_html == NULL)
701 		tree_html = strdup("");
702 
703 	if ((asprintf(&tree_html_disp, tree_header,
704 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
705 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
706 	    tree_html)) == -1)
707 		return got_error_from_errno("asprintf");
708 
709 	if ((asprintf(&tree, tree_wrapper, tree_html_disp)) == -1)
710 		return got_error_from_errno("asprintf");
711 
712 	khttp_puts(gw_trans->gw_req, tree);
713 	got_ref_list_free(&header->refs);
714 	gw_free_headers(header);
715 	free(tree_html_disp);
716 	free(tree_html);
717 	free(tree);
718 	return error;
719 }
720 
721 static const struct got_error *
722 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
723 {
724 	const struct got_error *error = NULL;
725 	DIR *dt;
726 	char *dir_test;
727 	int opened = 0;
728 
729 	if ((asprintf(&dir_test, "%s/%s/%s",
730 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
731 	    GOTWEB_GIT_DIR)) == -1)
732 		return got_error_from_errno("asprintf");
733 
734 	dt = opendir(dir_test);
735 	if (dt == NULL) {
736 		free(dir_test);
737 	} else {
738 		gw_dir->path = strdup(dir_test);
739 		opened = 1;
740 		goto done;
741 	}
742 
743 	if ((asprintf(&dir_test, "%s/%s/%s",
744 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
745 	    GOTWEB_GOT_DIR)) == -1)
746 		return got_error_from_errno("asprintf");
747 
748 	dt = opendir(dir_test);
749 	if (dt == NULL)
750 		free(dir_test);
751 	else {
752 		opened = 1;
753 		error = got_error(GOT_ERR_NOT_GIT_REPO);
754 		goto errored;
755 	}
756 
757 	if ((asprintf(&dir_test, "%s/%s",
758 	    gw_trans->gw_conf->got_repos_path, gw_dir->name)) == -1)
759 		return got_error_from_errno("asprintf");
760 
761 	gw_dir->path = strdup(dir_test);
762 
763 done:
764 	gw_dir->description = gw_get_repo_description(gw_trans,
765 	    gw_dir->path);
766 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
767 	gw_dir->age = gw_get_repo_age(gw_trans, gw_dir->path, "refs/heads",
768 	    TM_DIFF);
769 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
770 
771 errored:
772 	free(dir_test);
773 	if (opened)
774 		closedir(dt);
775 	return error;
776 }
777 
778 static const struct got_error *
779 gw_load_got_paths(struct gw_trans *gw_trans)
780 {
781 	const struct got_error *error = NULL;
782 	DIR *d;
783 	struct dirent **sd_dent;
784 	struct gw_dir *gw_dir;
785 	struct stat st;
786 	unsigned int d_cnt, d_i;
787 
788 	d = opendir(gw_trans->gw_conf->got_repos_path);
789 	if (d == NULL) {
790 		error = got_error_from_errno2("opendir",
791 		    gw_trans->gw_conf->got_repos_path);
792 		return error;
793 	}
794 
795 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
796 	    alphasort);
797 	if (d_cnt == -1) {
798 		error = got_error_from_errno2("scandir",
799 		    gw_trans->gw_conf->got_repos_path);
800 		return error;
801 	}
802 
803 	for (d_i = 0; d_i < d_cnt; d_i++) {
804 		if (gw_trans->gw_conf->got_max_repos > 0 &&
805 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
806 			break; /* account for parent and self */
807 
808 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
809 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
810 			continue;
811 
812 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
813 			return got_error_from_errno("gw_dir malloc");
814 
815 		error = gw_load_got_path(gw_trans, gw_dir);
816 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
817 			continue;
818 		else if (error)
819 			return error;
820 
821 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
822 		    !got_path_dir_is_empty(gw_dir->path)) {
823 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
824 			    entry);
825 			gw_trans->repos_total++;
826 		}
827 	}
828 
829 	closedir(d);
830 	return error;
831 }
832 
833 static const struct got_error *
834 gw_parse_querystring(struct gw_trans *gw_trans)
835 {
836 	const struct got_error *error = NULL;
837 	struct kpair *p;
838 	struct gw_query_action *action = NULL;
839 	unsigned int i;
840 
841 	if (gw_trans->gw_req->fieldnmap[0]) {
842 		error = got_error_from_errno("bad parse");
843 		return error;
844 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
845 		/* define gw_trans->repo_path */
846 		if ((asprintf(&gw_trans->repo_name, "%s", p->parsed.s)) == -1)
847 			return got_error_from_errno("asprintf");
848 
849 		if ((asprintf(&gw_trans->repo_path, "%s/%s",
850 		    gw_trans->gw_conf->got_repos_path, p->parsed.s)) == -1)
851 			return got_error_from_errno("asprintf");
852 
853 		/* get action and set function */
854 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
855 			for (i = 0; i < nitems(gw_query_funcs); i++) {
856 				action = &gw_query_funcs[i];
857 				if (action->func_name == NULL)
858 					continue;
859 
860 				if (strcmp(action->func_name,
861 				    p->parsed.s) == 0) {
862 					gw_trans->action = i;
863 					if ((asprintf(&gw_trans->action_name,
864 					    "%s", action->func_name)) == -1)
865 						return
866 						    got_error_from_errno(
867 						    "asprintf");
868 
869 					break;
870 				}
871 
872 				action = NULL;
873 			}
874 
875  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
876 			if ((asprintf(&gw_trans->commit, "%s",
877 			    p->parsed.s)) == -1)
878 				return got_error_from_errno("asprintf");
879 
880 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
881 			if ((asprintf(&gw_trans->repo_file, "%s",
882 			    p->parsed.s)) == -1)
883 				return got_error_from_errno("asprintf");
884 
885 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER]))
886 			if ((asprintf(&gw_trans->repo_folder, "%s",
887 			    p->parsed.s)) == -1)
888 				return got_error_from_errno("asprintf");
889 
890 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
891 			if ((asprintf(&gw_trans->headref, "%s",
892 			    p->parsed.s)) == -1)
893 				return got_error_from_errno("asprintf");
894 
895 		if (action == NULL) {
896 			error = got_error_from_errno("invalid action");
897 			return error;
898 		}
899 		if ((gw_trans->gw_dir =
900 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
901 			return got_error_from_errno("gw_dir malloc");
902 
903 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
904 		if (error)
905 			return error;
906 	} else
907 		gw_trans->action = GW_INDEX;
908 
909 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
910 		gw_trans->page = p->parsed.i;
911 
912 	/* if (gw_trans->action == GW_RAW) */
913 	/* 	gw_trans->mime = KMIME_TEXT_PLAIN; */
914 
915 	return error;
916 }
917 
918 static struct gw_dir *
919 gw_init_gw_dir(char *dir)
920 {
921 	struct gw_dir *gw_dir;
922 
923 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
924 		return NULL;
925 
926 	if ((asprintf(&gw_dir->name, "%s", dir)) == -1)
927 		return NULL;
928 
929 	return gw_dir;
930 }
931 
932 static void
933 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
934 {
935 	khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
936 	khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
937 	    khttps[code]);
938 	khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
939 	    kmimetypes[mime]);
940 	khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
941 	khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
942 	khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
943 	khttp_body(gw_trans->gw_req);
944 }
945 
946 static void
947 gw_display_index(struct gw_trans *gw_trans, const struct got_error *err)
948 {
949 	gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
950 	khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
951 
952 	if (err)
953 		khttp_puts(gw_trans->gw_req, err->msg);
954 	else
955 		khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
956 		    gw_query_funcs[gw_trans->action].template);
957 
958 	khtml_close(gw_trans->gw_html_req);
959 }
960 
961 static int
962 gw_template(size_t key, void *arg)
963 {
964 	const struct got_error *error = NULL;
965 	struct gw_trans *gw_trans = arg;
966 	char *gw_got_link, *gw_site_link;
967 	char *site_owner_name, *site_owner_name_h;
968 
969 	switch (key) {
970 	case (TEMPL_HEAD):
971 		khttp_puts(gw_trans->gw_req, head);
972 		break;
973 	case(TEMPL_HEADER):
974 		gw_got_link = gw_get_got_link(gw_trans);
975 		if (gw_got_link != NULL)
976 			khttp_puts(gw_trans->gw_req, gw_got_link);
977 
978 		free(gw_got_link);
979 		break;
980 	case (TEMPL_SITEPATH):
981 		gw_site_link = gw_get_site_link(gw_trans);
982 		if (gw_site_link != NULL)
983 			khttp_puts(gw_trans->gw_req, gw_site_link);
984 
985 		free(gw_site_link);
986 		break;
987 	case(TEMPL_TITLE):
988 		if (gw_trans->gw_conf->got_site_name != NULL)
989 			khtml_puts(gw_trans->gw_html_req,
990 			    gw_trans->gw_conf->got_site_name);
991 
992 		break;
993 	case (TEMPL_SEARCH):
994 		khttp_puts(gw_trans->gw_req, search);
995 		break;
996 	case(TEMPL_SITEOWNER):
997 		if (gw_trans->gw_conf->got_site_owner != NULL &&
998 		    gw_trans->gw_conf->got_show_site_owner) {
999 			site_owner_name =
1000 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
1001 			if ((asprintf(&site_owner_name_h, site_owner,
1002 			    site_owner_name))
1003 			    == -1)
1004 				return 0;
1005 
1006 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
1007 			free(site_owner_name);
1008 			free(site_owner_name_h);
1009 		}
1010 		break;
1011 	case(TEMPL_CONTENT):
1012 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1013 		if (error)
1014 			khttp_puts(gw_trans->gw_req, error->msg);
1015 
1016 		break;
1017 	default:
1018 		return 0;
1019 		break;
1020 	}
1021 	return 1;
1022 }
1023 
1024 static char *
1025 gw_gen_commit_header(char *str1, char *str2)
1026 {
1027 	char *return_html = NULL, *ref_str = NULL;
1028 
1029 	if (strcmp(str2, "") != 0) {
1030 		if ((asprintf(&ref_str, "(%s)", str2)) == -1) {
1031 			return_html = strdup("");
1032 			return return_html;
1033 		}
1034 	} else
1035 		ref_str = strdup("");
1036 
1037 
1038 	if ((asprintf(&return_html, header_commit_html, str1, ref_str)) == -1)
1039 		return_html = strdup("");
1040 
1041 	free(ref_str);
1042 	return return_html;
1043 }
1044 
1045 static char *
1046 gw_gen_diff_header(char *str1, char *str2)
1047 {
1048 	char *return_html = NULL;
1049 
1050 	if ((asprintf(&return_html, header_diff_html, str1, str2)) == -1)
1051 		return_html = strdup("");
1052 
1053 	return return_html;
1054 }
1055 
1056 static char *
1057 gw_gen_author_header(char *str)
1058 {
1059 	char *return_html = NULL;
1060 
1061 	if ((asprintf(&return_html, header_author_html, str)) == -1)
1062 		return_html = strdup("");
1063 
1064 	return return_html;
1065 }
1066 
1067 static char *
1068 gw_gen_committer_header(char *str)
1069 {
1070 	char *return_html = NULL;
1071 
1072 	if ((asprintf(&return_html, header_committer_html, str)) == -1)
1073 		return_html = strdup("");
1074 
1075 	return return_html;
1076 }
1077 
1078 static char *
1079 gw_gen_age_header(char *str)
1080 {
1081 	char *return_html = NULL;
1082 
1083 	if ((asprintf(&return_html, header_age_html, str)) == -1)
1084 		return_html = strdup("");
1085 
1086 	return return_html;
1087 }
1088 
1089 static char *
1090 gw_gen_commit_msg_header(char *str)
1091 {
1092 	char *return_html = NULL;
1093 
1094 	if ((asprintf(&return_html, header_commit_msg_html, str)) == -1)
1095 		return_html = strdup("");
1096 
1097 	return return_html;
1098 }
1099 
1100 static char *
1101 gw_gen_tree_header(char *str)
1102 {
1103 	char *return_html = NULL;
1104 
1105 	if ((asprintf(&return_html, header_tree_html, str)) == -1)
1106 		return_html = strdup("");
1107 
1108 	return return_html;
1109 }
1110 
1111 static char *
1112 gw_get_repo_description(struct gw_trans *gw_trans, char *dir)
1113 {
1114 	FILE *f;
1115 	char *description = NULL, *d_file = NULL;
1116 	unsigned int len;
1117 
1118 	if (gw_trans->gw_conf->got_show_repo_description == false)
1119 		goto err;
1120 
1121 	if ((asprintf(&d_file, "%s/description", dir)) == -1)
1122 		goto err;
1123 
1124 	if ((f = fopen(d_file, "r")) == NULL)
1125 		goto err;
1126 
1127 	fseek(f, 0, SEEK_END);
1128 	len = ftell(f) + 1;
1129 	fseek(f, 0, SEEK_SET);
1130 	if ((description = calloc(len, sizeof(char *))) == NULL)
1131 		goto err;
1132 
1133 	fread(description, 1, len, f);
1134 	fclose(f);
1135 	free(d_file);
1136 	return description;
1137 err:
1138 	if ((asprintf(&description, "%s", "")) == -1)
1139 		return NULL;
1140 
1141 	return description;
1142 }
1143 
1144 static char *
1145 gw_get_time_str(time_t committer_time, int ref_tm)
1146 {
1147 	struct tm tm;
1148 	time_t diff_time;
1149 	char *years = "years ago", *months = "months ago";
1150 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1151 	char *minutes = "minutes ago", *seconds = "seconds ago";
1152 	char *now = "right now";
1153 	char *repo_age, *s;
1154 	char datebuf[29];
1155 
1156 	switch (ref_tm) {
1157 	case TM_DIFF:
1158 		diff_time = time(NULL) - committer_time;
1159 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1160 			if ((asprintf(&repo_age, "%lld %s",
1161 			    (diff_time / 60 / 60 / 24 / 365), years)) == -1)
1162 				return NULL;
1163 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1164 			if ((asprintf(&repo_age, "%lld %s",
1165 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1166 			    months)) == -1)
1167 				return NULL;
1168 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1169 			if ((asprintf(&repo_age, "%lld %s",
1170 			    (diff_time / 60 / 60 / 24 / 7), weeks)) == -1)
1171 				return NULL;
1172 		} else if (diff_time > 60 * 60 * 24 * 2) {
1173 			if ((asprintf(&repo_age, "%lld %s",
1174 			    (diff_time / 60 / 60 / 24), days)) == -1)
1175 				return NULL;
1176 		} else if (diff_time > 60 * 60 * 2) {
1177 			if ((asprintf(&repo_age, "%lld %s",
1178 			    (diff_time / 60 / 60), hours)) == -1)
1179 				return NULL;
1180 		} else if (diff_time > 60 * 2) {
1181 			if ((asprintf(&repo_age, "%lld %s", (diff_time / 60),
1182 			    minutes)) == -1)
1183 				return NULL;
1184 		} else if (diff_time > 2) {
1185 			if ((asprintf(&repo_age, "%lld %s", diff_time,
1186 			    seconds)) == -1)
1187 				return NULL;
1188 		} else {
1189 			if ((asprintf(&repo_age, "%s", now)) == -1)
1190 				return NULL;
1191 		}
1192 		break;
1193 	case TM_LONG:
1194 		if (gmtime_r(&committer_time, &tm) == NULL)
1195 			return NULL;
1196 
1197 		s = asctime_r(&tm, datebuf);
1198 		if (s == NULL)
1199 			return NULL;
1200 
1201 		if ((asprintf(&repo_age, "%s UTC", datebuf)) == -1)
1202 			return NULL;
1203 		break;
1204 	}
1205 	return repo_age;
1206 }
1207 
1208 static char *
1209 gw_get_repo_age(struct gw_trans *gw_trans, char *dir, char *repo_ref,
1210     int ref_tm)
1211 {
1212 	const struct got_error *error = NULL;
1213 	struct got_object_id *id = NULL;
1214 	struct got_repository *repo = NULL;
1215 	struct got_commit_object *commit = NULL;
1216 	struct got_reflist_head refs;
1217 	struct got_reflist_entry *re;
1218 	struct got_reference *head_ref;
1219 	int is_head = 0;
1220 	time_t committer_time = 0, cmp_time = 0;
1221 	const char *refname;
1222 	char *repo_age = NULL;
1223 
1224 	if (repo_ref == NULL)
1225 		return NULL;
1226 
1227 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1228 		is_head = 1;
1229 
1230 	SIMPLEQ_INIT(&refs);
1231 	if (gw_trans->gw_conf->got_show_repo_age == false) {
1232 		if ((asprintf(&repo_age, "")) == -1)
1233 			return NULL;
1234 		return repo_age;
1235 	}
1236 
1237 	error = got_repo_open(&repo, dir, NULL);
1238 	if (error)
1239 		goto err;
1240 
1241 	if (is_head)
1242 		error = got_ref_list(&refs, repo, "refs/heads",
1243 		    got_ref_cmp_by_name, NULL);
1244 	else
1245 		error = got_ref_list(&refs, repo, repo_ref,
1246 		    got_ref_cmp_by_name, NULL);
1247 	if (error)
1248 		goto err;
1249 
1250 	SIMPLEQ_FOREACH(re, &refs, entry) {
1251 		if (is_head)
1252 			refname = strdup(repo_ref);
1253 		else
1254 			refname = got_ref_get_name(re->ref);
1255 		error = got_ref_open(&head_ref, repo, refname, 0);
1256 		if (error)
1257 			goto err;
1258 
1259 		error = got_ref_resolve(&id, repo, head_ref);
1260 		got_ref_close(head_ref);
1261 		if (error)
1262 			goto err;
1263 
1264 		error = got_object_open_as_commit(&commit, repo, id);
1265 		if (error)
1266 			goto err;
1267 
1268 		committer_time =
1269 		    got_object_commit_get_committer_time(commit);
1270 
1271 		if (cmp_time < committer_time)
1272 			cmp_time = committer_time;
1273 	}
1274 
1275 	if (cmp_time != 0) {
1276 		committer_time = cmp_time;
1277 		repo_age = gw_get_time_str(committer_time, ref_tm);
1278 	} else
1279 		if ((asprintf(&repo_age, "")) == -1)
1280 			return NULL;
1281 	got_ref_list_free(&refs);
1282 	free(id);
1283 	return repo_age;
1284 err:
1285 	if ((asprintf(&repo_age, "%s", error->msg)) == -1)
1286 		return NULL;
1287 
1288 	return repo_age;
1289 }
1290 
1291 static char *
1292 gw_get_diff(struct gw_trans *gw_trans, struct gw_header *header)
1293 {
1294 	const struct got_error *error;
1295 	FILE *f = NULL;
1296 	struct got_object_id *id1 = NULL, *id2 = NULL;
1297 	struct buf *diffbuf = NULL;
1298 	char *label1 = NULL, *label2 = NULL, *diff_html = NULL, *buf = NULL,
1299 	     *buf_color = NULL, *n_buf = NULL, *newline = NULL;
1300 	int obj_type;
1301 	size_t newsize;
1302 
1303 	f = got_opentemp();
1304 	if (f == NULL)
1305 		return NULL;
1306 
1307 	error = buf_alloc(&diffbuf, 0);
1308 	if (error)
1309 		return NULL;
1310 
1311 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
1312 	if (error)
1313 		goto done;
1314 
1315 	if (strncmp(header->parent_id, "/dev/null", 9) != 0) {
1316 		error = got_repo_match_object_id(&id1, &label1,
1317 			header->parent_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1318 		if (error)
1319 			goto done;
1320 	}
1321 
1322 	error = got_repo_match_object_id(&id2, &label2,
1323 	    header->commit_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1324 	if (error)
1325 		goto done;
1326 
1327 	error = got_object_get_type(&obj_type, header->repo, id2);
1328 	if (error)
1329 		goto done;
1330 	switch (obj_type) {
1331 	case GOT_OBJ_TYPE_BLOB:
1332 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL, 3, 0,
1333 		    header->repo, f);
1334 		break;
1335 	case GOT_OBJ_TYPE_TREE:
1336 		error = got_diff_objects_as_trees(id1, id2, "", "", 3, 0,
1337 		    header->repo, f);
1338 		break;
1339 	case GOT_OBJ_TYPE_COMMIT:
1340 		error = got_diff_objects_as_commits(id1, id2, 3, 0,
1341 		    header->repo, f);
1342 		break;
1343 	default:
1344 		error = got_error(GOT_ERR_OBJ_TYPE);
1345 	}
1346 
1347 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1348 		goto done;
1349 
1350 	fseek(f, 0, SEEK_SET);
1351 
1352 	while ((fgets(buf, 2048, f)) != NULL) {
1353 		n_buf = buf;
1354 		while (*n_buf == '\n')
1355 			n_buf++;
1356 		newline = strchr(n_buf, '\n');
1357 		if (newline)
1358 			*newline = ' ';
1359 
1360 		buf_color = gw_colordiff_line(gw_html_escape(n_buf));
1361 		if (buf_color == NULL)
1362 			continue;
1363 
1364 		error = buf_puts(&newsize, diffbuf, buf_color);
1365 		if (error)
1366 			return NULL;
1367 
1368 		error = buf_puts(&newsize, diffbuf, div_end);
1369 		if (error)
1370 			return NULL;
1371 	}
1372 
1373 	if (buf_len(diffbuf) > 0) {
1374 		error = buf_putc(diffbuf, '\0');
1375 		diff_html = strdup(buf_get(diffbuf));
1376 	}
1377 done:
1378 	fclose(f);
1379 	free(buf_color);
1380 	free(buf);
1381 	free(diffbuf);
1382 	free(label1);
1383 	free(label2);
1384 	free(id1);
1385 	free(id2);
1386 
1387 	if (error)
1388 		return NULL;
1389 	else
1390 		return diff_html;
1391 }
1392 
1393 static char *
1394 gw_get_repo_owner(struct gw_trans *gw_trans, char *dir)
1395 {
1396 	FILE *f;
1397 	char *owner = NULL, *d_file = NULL;
1398 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1399 	char *comp, *pos, *buf;
1400 	unsigned int i;
1401 
1402 	if (gw_trans->gw_conf->got_show_repo_owner == false)
1403 		goto err;
1404 
1405 	if ((asprintf(&d_file, "%s/config", dir)) == -1)
1406 		goto err;
1407 
1408 	if ((f = fopen(d_file, "r")) == NULL)
1409 		goto err;
1410 
1411 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1412 		goto err;
1413 
1414 	while ((fgets(buf, 128, f)) != NULL) {
1415 		if ((pos = strstr(buf, gotweb)) != NULL)
1416 			break;
1417 
1418 		if ((pos = strstr(buf, gitweb)) != NULL)
1419 			break;
1420 	}
1421 
1422 	if (pos == NULL)
1423 		goto err;
1424 
1425 	do {
1426 		fgets(buf, 128, f);
1427 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1428 
1429 	if (comp == NULL)
1430 		goto err;
1431 
1432 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1433 		goto err;
1434 
1435 	for (i = 0; i < 2; i++) {
1436 		owner = strsep(&buf, "\"");
1437 	}
1438 
1439 	if (owner == NULL)
1440 		goto err;
1441 
1442 	fclose(f);
1443 	free(d_file);
1444 	return owner;
1445 err:
1446 	if ((asprintf(&owner, "%s", "")) == -1)
1447 		return NULL;
1448 
1449 	return owner;
1450 }
1451 
1452 static char *
1453 gw_get_clone_url(struct gw_trans *gw_trans, char *dir)
1454 {
1455 	FILE *f;
1456 	char *url = NULL, *d_file = NULL;
1457 	unsigned int len;
1458 
1459 	if ((asprintf(&d_file, "%s/cloneurl", dir)) == -1)
1460 		return NULL;
1461 
1462 	if ((f = fopen(d_file, "r")) == NULL)
1463 		return NULL;
1464 
1465 	fseek(f, 0, SEEK_END);
1466 	len = ftell(f) + 1;
1467 	fseek(f, 0, SEEK_SET);
1468 
1469 	if ((url = calloc(len, sizeof(char *))) == NULL)
1470 		return NULL;
1471 
1472 	fread(url, 1, len, f);
1473 	fclose(f);
1474 	free(d_file);
1475 	return url;
1476 }
1477 
1478 static char *
1479 gw_get_repo_tags(struct gw_trans *gw_trans, int limit, int tag_type)
1480 {
1481 	const struct got_error *error = NULL;
1482 	struct got_repository *repo = NULL;
1483 	struct got_reflist_head refs;
1484 	struct got_reflist_entry *re;
1485 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL,
1486 	     *age = NULL;
1487 	char *newline;
1488 	struct buf *diffbuf = NULL;
1489 	size_t newsize;
1490 
1491 	error = buf_alloc(&diffbuf, 0);
1492 	if (error)
1493 		return NULL;
1494 	SIMPLEQ_INIT(&refs);
1495 
1496 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1497 	if (error)
1498 		goto done;
1499 
1500 	error = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_tags, repo);
1501 	if (error)
1502 		goto done;
1503 
1504 	SIMPLEQ_FOREACH(re, &refs, entry) {
1505 		const char *refname;
1506 		char *refstr, *tag_commit0, *tag_commit, *id_str;
1507 		time_t tagger_time;
1508 		struct got_object_id *id;
1509 		struct got_tag_object *tag;
1510 
1511 		refname = got_ref_get_name(re->ref);
1512 		if (strncmp(refname, "refs/tags/", 10) != 0)
1513 			continue;
1514 		refname += 10;
1515 		refstr = got_ref_to_str(re->ref);
1516 		if (refstr == NULL) {
1517 			error = got_error_from_errno("got_ref_to_str");
1518 			goto done;
1519 		}
1520 
1521 		error = got_ref_resolve(&id, repo, re->ref);
1522 		if (error)
1523 			goto done;
1524 		error = got_object_open_as_tag(&tag, repo, id);
1525 		free(id);
1526 		if (error)
1527 			goto done;
1528 
1529 		tagger_time = got_object_tag_get_tagger_time(tag);
1530 
1531 		error = got_object_id_str(&id_str,
1532 		    got_object_tag_get_object_id(tag));
1533 		if (error)
1534 			goto done;
1535 
1536 		tag_commit0 = strdup(got_object_tag_get_message(tag));
1537 
1538 		if (tag_commit0 == NULL) {
1539 			error = got_error_from_errno("strdup");
1540 			goto done;
1541 		}
1542 
1543 		tag_commit = tag_commit0;
1544 		while (*tag_commit == '\n')
1545 			tag_commit++;
1546 
1547 		switch (tag_type) {
1548 		case TAGBRIEF:
1549 			newline = strchr(tag_commit, '\n');
1550 			if (newline)
1551 				*newline = '\0';
1552 
1553 			if ((asprintf(&age, "%s", gw_get_time_str(tagger_time,
1554 			    TM_DIFF))) == -1) {
1555 				error = got_error_from_errno("asprintf");
1556 				goto done;
1557 			}
1558 
1559 			if ((asprintf(&tags_navs_disp, tags_navs,
1560 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
1561 			    id_str, gw_trans->repo_name, id_str,
1562 			    gw_trans->repo_name, id_str)) == -1) {
1563 				error = got_error_from_errno("asprintf");
1564 				goto done;
1565 			}
1566 
1567 			if ((asprintf(&tag_row, tags_row, age, refname,
1568 			    tag_commit, tags_navs_disp)) == -1) {
1569 				error = got_error_from_errno("asprintf");
1570 				goto done;
1571 			}
1572 
1573 			free(tags_navs_disp);
1574 			break;
1575 		case TAGFULL:
1576 			break;
1577 		default:
1578 			break;
1579 		}
1580 
1581 		got_object_tag_close(tag);
1582 
1583 		error = buf_puts(&newsize, diffbuf, tag_row);
1584 
1585 		free(id_str);
1586 		free(refstr);
1587 		free(age);
1588 		free(tag_commit0);
1589 		free(tag_row);
1590 
1591 		if (error || (limit && --limit == 0))
1592 			break;
1593 	}
1594 
1595 	if (buf_len(diffbuf) > 0) {
1596 		error = buf_putc(diffbuf, '\0');
1597 		tags = strdup(buf_get(diffbuf));
1598 	}
1599 done:
1600 	buf_free(diffbuf);
1601 	got_ref_list_free(&refs);
1602 	if (repo)
1603 		got_repo_close(repo);
1604 	if (error)
1605 		return NULL;
1606 	else
1607 		return tags;
1608 }
1609 
1610 static void
1611 gw_free_headers(struct gw_header *header)
1612 {
1613 	free(header->id);
1614 	free(header->path);
1615 	if (header->commit != NULL)
1616 		got_object_commit_close(header->commit);
1617 	if (header->repo)
1618 		got_repo_close(header->repo);
1619 	free(header->refs_str);
1620 	free(header->commit_id);
1621 	free(header->parent_id);
1622 	free(header->tree_id);
1623 	free(header->author);
1624 	free(header->committer);
1625 	free(header->commit_msg);
1626 }
1627 
1628 static struct gw_header *
1629 gw_init_header()
1630 {
1631 	struct gw_header *header;
1632 
1633 	if ((header = malloc(sizeof(*header))) == NULL)
1634 		return NULL;
1635 
1636 	header->repo = NULL;
1637 	header->commit = NULL;
1638 	header->id = NULL;
1639 	header->path = NULL;
1640 
1641 	return header;
1642 }
1643 
1644 static const struct got_error *
1645 gw_get_commits(struct gw_trans * gw_trans, struct gw_header *header,
1646     int limit)
1647 {
1648 	const struct got_error *error = NULL;
1649 	struct got_commit_graph *graph = NULL;
1650 
1651 	error = got_commit_graph_open(&graph, header->path, 0);
1652 	if (error)
1653 		goto done;
1654 
1655 	error = got_commit_graph_iter_start(graph, header->id, header->repo,
1656 	    NULL, NULL);
1657 	if (error)
1658 		goto done;
1659 
1660 	for (;;) {
1661 		error = got_commit_graph_iter_next(&header->id, graph,
1662 		    header->repo, NULL, NULL);
1663 		if (error) {
1664 			if (error->code == GOT_ERR_ITER_COMPLETED)
1665 				error = NULL;
1666 			goto done;
1667 		}
1668 		if (header->id == NULL)
1669 			goto done;
1670 
1671 		error = got_object_open_as_commit(&header->commit, header->repo,
1672 		    header->id);
1673 		if (error)
1674 			goto done;
1675 
1676 		error = gw_get_commit(gw_trans, header);
1677 		if (limit > 1) {
1678 			struct gw_header *n_header = NULL;
1679 			if ((n_header = gw_init_header()) == NULL)
1680 				error = got_error_from_errno("malloc");
1681 
1682 			n_header->refs_str = strdup(header->refs_str);
1683 			n_header->commit_id = strdup(header->commit_id);
1684 			n_header->parent_id = strdup(header->parent_id);
1685 			n_header->tree_id = strdup(header->tree_id);
1686 			n_header->author = strdup(header->author);
1687 			n_header->committer = strdup(header->committer);
1688 			n_header->commit_msg = strdup(header->commit_msg);
1689 			n_header->committer_time = header->committer_time;
1690 			TAILQ_INSERT_TAIL(&gw_trans->gw_headers, n_header,
1691 			    entry);
1692 		}
1693 		if (error || (limit && --limit == 0))
1694 			break;
1695 	}
1696 done:
1697 	if (graph)
1698 		got_commit_graph_close(graph);
1699 	return error;
1700 }
1701 
1702 static const struct got_error *
1703 gw_get_commit(struct gw_trans *gw_trans, struct gw_header *header)
1704 {
1705 	const struct got_error *error = NULL;
1706 	struct got_reflist_entry *re;
1707 	struct got_object_id *id2 = NULL;
1708 	struct got_object_qid *parent_id;
1709 	char *refs_str = NULL,
1710 	     *commit_msg = NULL, *commit_msg0;
1711 
1712 	/*print commit*/
1713 	SIMPLEQ_FOREACH(re, &header->refs, entry) {
1714 		char *s;
1715 		const char *name;
1716 		struct got_tag_object *tag = NULL;
1717 		int cmp;
1718 
1719 		name = got_ref_get_name(re->ref);
1720 		if (strcmp(name, GOT_REF_HEAD) == 0)
1721 			continue;
1722 		if (strncmp(name, "refs/", 5) == 0)
1723 			name += 5;
1724 		if (strncmp(name, "got/", 4) == 0)
1725 			continue;
1726 		if (strncmp(name, "heads/", 6) == 0)
1727 			name += 6;
1728 		if (strncmp(name, "remotes/", 8) == 0)
1729 			name += 8;
1730 		if (strncmp(name, "tags/", 5) == 0) {
1731 			error = got_object_open_as_tag(&tag, header->repo,
1732 			    re->id);
1733 			if (error) {
1734 				if (error->code != GOT_ERR_OBJ_TYPE)
1735 					continue;
1736 				/*
1737 				 * Ref points at something other
1738 				 * than a tag.
1739 				 */
1740 				error = NULL;
1741 				tag = NULL;
1742 			}
1743 		}
1744 		cmp = got_object_id_cmp(tag ?
1745 		    got_object_tag_get_object_id(tag) : re->id, header->id);
1746 		if (tag)
1747 			got_object_tag_close(tag);
1748 		if (cmp != 0)
1749 			continue;
1750 		s = refs_str;
1751 		if ((asprintf(&refs_str, "%s%s%s", s ? s : "",
1752 		    s ? ", " : "", name)) == -1) {
1753 			error = got_error_from_errno("asprintf");
1754 			free(s);
1755 			return error;
1756 		}
1757 		header->refs_str = strdup(refs_str);
1758 		free(s);
1759 	}
1760 
1761 	if (refs_str == NULL)
1762 		header->refs_str = strdup("");
1763 	free(refs_str);
1764 
1765 	error = got_object_id_str(&header->commit_id, header->id);
1766 	if (error)
1767 		return error;
1768 
1769 	error = got_object_id_str(&header->tree_id,
1770 	    got_object_commit_get_tree_id(header->commit));
1771 	if (error)
1772 		return error;
1773 
1774 	if (gw_trans->action == GW_DIFF) {
1775 		parent_id = SIMPLEQ_FIRST(
1776 		    got_object_commit_get_parent_ids(header->commit));
1777 		if (parent_id != NULL) {
1778 			id2 = got_object_id_dup(parent_id->id);
1779 			free (parent_id);
1780 			error = got_object_id_str(&header->parent_id, id2);
1781 			if (error)
1782 				return error;
1783 			free(id2);
1784 		} else
1785 			header->parent_id = strdup("/dev/null");
1786 	} else
1787 		header->parent_id = strdup("");
1788 
1789 	header->committer_time =
1790 	    got_object_commit_get_committer_time(header->commit);
1791 	header->author = strdup(got_object_commit_get_author(header->commit));
1792 	header->committer =
1793 	    strdup(got_object_commit_get_committer(header->commit));
1794 
1795 	error = got_object_commit_get_logmsg(&commit_msg0, header->commit);
1796 	if (error)
1797 		return error;
1798 
1799 	commit_msg = commit_msg0;
1800 	while (*commit_msg == '\n')
1801 		commit_msg++;
1802 
1803 	header->commit_msg = strdup(commit_msg);
1804 	free(commit_msg0);
1805 	return error;
1806 }
1807 
1808 static const struct got_error *
1809 gw_get_header(struct gw_trans *gw_trans, struct gw_header *header, int limit)
1810 {
1811 	const struct got_error *error = NULL;
1812 	char *in_repo_path = NULL;
1813 
1814 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
1815 	if (error)
1816 		return error;
1817 
1818 	SIMPLEQ_INIT(&header->refs);
1819 
1820 	if (gw_trans->commit == NULL) {
1821 		struct got_reference *head_ref;
1822 		error = got_ref_open(&head_ref, header->repo,
1823 		    gw_trans->headref, 0);
1824 		if (error)
1825 			return error;
1826 
1827 		error = got_ref_resolve(&header->id, header->repo, head_ref);
1828 		got_ref_close(head_ref);
1829 		if (error)
1830 			return error;
1831 
1832 		error = got_object_open_as_commit(&header->commit,
1833 		    header->repo, header->id);
1834 	} else {
1835 		struct got_reference *ref;
1836 		error = got_ref_open(&ref, header->repo, gw_trans->commit, 0);
1837 		if (error == NULL) {
1838 			int obj_type;
1839 			error = got_ref_resolve(&header->id, header->repo, ref);
1840 			got_ref_close(ref);
1841 			if (error)
1842 				return error;
1843 			error = got_object_get_type(&obj_type, header->repo,
1844 			    header->id);
1845 			if (error)
1846 				return error;
1847 			if (obj_type == GOT_OBJ_TYPE_TAG) {
1848 				struct got_tag_object *tag;
1849 				error = got_object_open_as_tag(&tag,
1850 				    header->repo, header->id);
1851 				if (error)
1852 					return error;
1853 				if (got_object_tag_get_object_type(tag) !=
1854 				    GOT_OBJ_TYPE_COMMIT) {
1855 					got_object_tag_close(tag);
1856 					error = got_error(GOT_ERR_OBJ_TYPE);
1857 					return error;
1858 				}
1859 				free(header->id);
1860 				header->id = got_object_id_dup(
1861 				    got_object_tag_get_object_id(tag));
1862 				if (header->id == NULL)
1863 					error = got_error_from_errno(
1864 					    "got_object_id_dup");
1865 				got_object_tag_close(tag);
1866 				if (error)
1867 					return error;
1868 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
1869 				error = got_error(GOT_ERR_OBJ_TYPE);
1870 				return error;
1871 			}
1872 			error = got_object_open_as_commit(&header->commit,
1873 			    header->repo, header->id);
1874 			if (error)
1875 				return error;
1876 		}
1877 		if (header->commit == NULL) {
1878 			error = got_repo_match_object_id_prefix(&header->id,
1879 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
1880 			    header->repo);
1881 			if (error)
1882 				return error;
1883 		}
1884 		error = got_repo_match_object_id_prefix(&header->id,
1885 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
1886 			    header->repo);
1887 	}
1888 
1889 	error = got_repo_map_path(&in_repo_path, header->repo,
1890 	    gw_trans->repo_path, 1);
1891 	if (error)
1892 		return error;
1893 
1894 	if (in_repo_path) {
1895 		header->path = strdup(in_repo_path);
1896 	}
1897 	free(in_repo_path);
1898 
1899 	error = got_ref_list(&header->refs, header->repo, NULL,
1900 	    got_ref_cmp_by_name, NULL);
1901 	if (error)
1902 		return error;
1903 
1904 	error = gw_get_commits(gw_trans, header, limit);
1905 	return error;
1906 }
1907 
1908 struct blame_line {
1909 	int annotated;
1910 	char *id_str;
1911 	char *committer;
1912 	char datebuf[11]; /* YYYY-MM-DD + NUL */
1913 };
1914 
1915 struct gw_blame_cb_args {
1916 	struct blame_line *lines;
1917 	int nlines;
1918 	int nlines_prec;
1919 	int lineno_cur;
1920 	off_t *line_offsets;
1921 	FILE *f;
1922 	struct got_repository *repo;
1923 	struct gw_trans *gw_trans;
1924 	struct buf *blamebuf;
1925 };
1926 
1927 static const struct got_error *
1928 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
1929 {
1930 	const struct got_error *err = NULL;
1931 	struct gw_blame_cb_args *a = arg;
1932 	struct blame_line *bline;
1933 	char *line = NULL;
1934 	size_t linesize = 0, newsize;
1935 	struct got_commit_object *commit = NULL;
1936 	off_t offset;
1937 	struct tm tm;
1938 	time_t committer_time;
1939 
1940 	if (nlines != a->nlines ||
1941 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
1942 		return got_error(GOT_ERR_RANGE);
1943 
1944 	if (lineno == -1)
1945 		return NULL; /* no change in this commit */
1946 
1947 	/* Annotate this line. */
1948 	bline = &a->lines[lineno - 1];
1949 	if (bline->annotated)
1950 		return NULL;
1951 	err = got_object_id_str(&bline->id_str, id);
1952 	if (err)
1953 		return err;
1954 
1955 	err = got_object_open_as_commit(&commit, a->repo, id);
1956 	if (err)
1957 		goto done;
1958 
1959 	bline->committer = strdup(got_object_commit_get_committer(commit));
1960 	if (bline->committer == NULL) {
1961 		err = got_error_from_errno("strdup");
1962 		goto done;
1963 	}
1964 
1965 	committer_time = got_object_commit_get_committer_time(commit);
1966 	if (localtime_r(&committer_time, &tm) == NULL)
1967 		return got_error_from_errno("localtime_r");
1968 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
1969 	    &tm) >= sizeof(bline->datebuf)) {
1970 		err = got_error(GOT_ERR_NO_SPACE);
1971 		goto done;
1972 	}
1973 	bline->annotated = 1;
1974 
1975 	/* Print lines annotated so far. */
1976 	bline = &a->lines[a->lineno_cur - 1];
1977 	if (!bline->annotated)
1978 		goto done;
1979 
1980 	offset = a->line_offsets[a->lineno_cur - 1];
1981 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
1982 		err = got_error_from_errno("fseeko");
1983 		goto done;
1984 	}
1985 
1986 	while (bline->annotated) {
1987 		char *smallerthan, *at, *nl, *committer, *blame_row = NULL,
1988 		     *line_escape = NULL;
1989 		size_t len;
1990 
1991 		if (getline(&line, &linesize, a->f) == -1) {
1992 			if (ferror(a->f))
1993 				err = got_error_from_errno("getline");
1994 			break;
1995 		}
1996 
1997 		committer = bline->committer;
1998 		smallerthan = strchr(committer, '<');
1999 		if (smallerthan && smallerthan[1] != '\0')
2000 			committer = smallerthan + 1;
2001 		at = strchr(committer, '@');
2002 		if (at)
2003 			*at = '\0';
2004 		len = strlen(committer);
2005 		if (len >= 9)
2006 			committer[8] = '\0';
2007 
2008 		nl = strchr(line, '\n');
2009 		if (nl)
2010 			*nl = '\0';
2011 
2012 		if (strcmp(line, "") != 0)
2013 			line_escape = strdup(gw_html_escape(line));
2014 		else
2015 			line_escape = strdup("");
2016 
2017 		asprintf(&blame_row, blame_line, a->nlines_prec,
2018 		    a->lineno_cur, bline->id_str, bline->datebuf, committer,
2019 		    line_escape);
2020 		a->lineno_cur++;
2021 		err = buf_puts(&newsize, a->blamebuf, blame_row);
2022 		if (err)
2023 			return err;
2024 
2025 		bline = &a->lines[a->lineno_cur - 1];
2026 		free(line_escape);
2027 		free(blame_row);
2028 	}
2029 done:
2030 	if (commit)
2031 		got_object_commit_close(commit);
2032 	free(line);
2033 	return err;
2034 }
2035 
2036 static char*
2037 gw_get_file_blame(struct gw_trans *gw_trans)
2038 {
2039 	const struct got_error *error = NULL;
2040 	struct got_repository *repo = NULL;
2041 	struct got_object_id *obj_id = NULL;
2042 	struct got_object_id *commit_id = NULL;
2043 	struct got_blob_object *blob = NULL;
2044 	char *blame_html = NULL, *path = NULL, *in_repo_path = NULL,
2045 	     *folder = NULL;
2046 	struct gw_blame_cb_args bca;
2047 	int i, obj_type;
2048 	size_t filesize;
2049 
2050 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2051 	if (error)
2052 		goto done;
2053 
2054 	if (gw_trans->repo_folder != NULL) {
2055 		if ((asprintf(&folder, "%s/", gw_trans->repo_folder)) == -1) {
2056 			error = got_error_from_errno("asprintf");
2057 			goto done;
2058 		}
2059 	} else
2060 		folder = strdup("");
2061 
2062 	if ((asprintf(&path, "%s%s", folder, gw_trans->repo_file)) == -1) {
2063 		error = got_error_from_errno("asprintf");
2064 		goto done;
2065 	}
2066 	free(folder);
2067 
2068 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
2069 	if (error)
2070 		goto done;
2071 
2072 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit,
2073 	    GOT_OBJ_TYPE_COMMIT, 1, repo);
2074 	if (error)
2075 		goto done;
2076 
2077 	error = got_object_id_by_path(&obj_id, repo, commit_id, in_repo_path);
2078 	if (error)
2079 		goto done;
2080 
2081 	if (obj_id == NULL) {
2082 		error = got_error(GOT_ERR_NO_OBJ);
2083 		goto done;
2084 	}
2085 
2086 	error = got_object_get_type(&obj_type, repo, obj_id);
2087 	if (error)
2088 		goto done;
2089 
2090 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
2091 		error = got_error(GOT_ERR_OBJ_TYPE);
2092 		goto done;
2093 	}
2094 
2095 	error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
2096 	if (error)
2097 		goto done;
2098 
2099 	error = buf_alloc(&bca.blamebuf, 0);
2100 	if (error)
2101 		goto done;
2102 
2103 	bca.f = got_opentemp();
2104 	if (bca.f == NULL) {
2105 		error = got_error_from_errno("got_opentemp");
2106 		goto done;
2107 	}
2108 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
2109 	    &bca.line_offsets, bca.f, blob);
2110 	if (error || bca.nlines == 0)
2111 		goto done;
2112 
2113 	/* Don't include \n at EOF in the blame line count. */
2114 	if (bca.line_offsets[bca.nlines - 1] == filesize)
2115 		bca.nlines--;
2116 
2117 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
2118 	if (bca.lines == NULL) {
2119 		error = got_error_from_errno("calloc");
2120 		goto done;
2121 	}
2122 	bca.lineno_cur = 1;
2123 	bca.nlines_prec = 0;
2124 	i = bca.nlines;
2125 	while (i > 0) {
2126 		i /= 10;
2127 		bca.nlines_prec++;
2128 	}
2129 	bca.repo = repo;
2130 	bca.gw_trans = gw_trans;
2131 
2132 	error = got_blame(in_repo_path, commit_id, repo, gw_blame_cb, &bca,
2133 	    NULL, NULL);
2134 	if (buf_len(bca.blamebuf) > 0) {
2135 		error = buf_putc(bca.blamebuf, '\0');
2136 		blame_html = strdup(buf_get(bca.blamebuf));
2137 	}
2138 done:
2139 	free(bca.blamebuf);
2140 	free(in_repo_path);
2141 	free(commit_id);
2142 	free(obj_id);
2143 	free(path);
2144 
2145 	if (blob)
2146 		error = got_object_blob_close(blob);
2147 	if (repo)
2148 		error = got_repo_close(repo);
2149 	if (error)
2150 		return NULL;
2151 	if (bca.lines) {
2152 		for (i = 0; i < bca.nlines; i++) {
2153 			struct blame_line *bline = &bca.lines[i];
2154 			free(bline->id_str);
2155 			free(bline->committer);
2156 		}
2157 		free(bca.lines);
2158 	}
2159 	free(bca.line_offsets);
2160 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
2161 		error = got_error_from_errno("fclose");
2162 	if (error)
2163 		return NULL;
2164 	else
2165 		return blame_html;
2166 }
2167 
2168 static char*
2169 gw_get_repo_tree(struct gw_trans *gw_trans)
2170 {
2171 	const struct got_error *error = NULL;
2172 	struct got_repository *repo = NULL;
2173 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
2174 	struct got_tree_object *tree = NULL;
2175 	struct buf *diffbuf = NULL;
2176 	size_t newsize;
2177 	char *tree_html = NULL, *path = NULL, *in_repo_path = NULL,
2178 	    *tree_row = NULL, *id_str;
2179 	int nentries, i;
2180 
2181 	error = buf_alloc(&diffbuf, 0);
2182 	if (error)
2183 		return NULL;
2184 
2185 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2186 	if (error)
2187 		goto done;
2188 
2189 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
2190 	if (error)
2191 		goto done;
2192 
2193 	if (gw_trans->repo_folder != NULL)
2194 		path = strdup(gw_trans->repo_folder);
2195 	else if (in_repo_path) {
2196 		free(path);
2197 		path = in_repo_path;
2198 	}
2199 
2200 	if (gw_trans->commit == NULL) {
2201 		struct got_reference *head_ref;
2202 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
2203 		if (error)
2204 			goto done;
2205 
2206 		error = got_ref_resolve(&commit_id, repo, head_ref);
2207 		got_ref_close(head_ref);
2208 
2209 	} else
2210 		error = got_repo_match_object_id(&commit_id, NULL,
2211 		    gw_trans->commit, GOT_OBJ_TYPE_COMMIT, 1, repo);
2212 	if (error)
2213 		goto done;
2214 
2215 	error = got_object_id_str(&gw_trans->commit, commit_id);
2216 	if (error)
2217 		goto done;
2218 
2219 	error = got_object_id_by_path(&tree_id, repo, commit_id, path);
2220 	if (error)
2221 		goto done;
2222 
2223 	error = got_object_open_as_tree(&tree, repo, tree_id);
2224 	if (error)
2225 		goto done;
2226 
2227 	nentries = got_object_tree_get_nentries(tree);
2228 
2229 	for (i = 0; i < nentries; i++) {
2230 		struct got_tree_entry *te;
2231 		const char *modestr = "";
2232 		char *id = NULL, *url_html = NULL;
2233 
2234 		te = got_object_tree_get_entry(tree, i);
2235 
2236 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
2237 		if (error)
2238 			goto done;
2239 
2240 		if ((asprintf(&id, "%s", id_str)) == -1) {
2241 			error = got_error_from_errno("asprintf");
2242 			free(id_str);
2243 			goto done;
2244 		}
2245 
2246 		mode_t mode = got_tree_entry_get_mode(te);
2247 
2248 		if (got_object_tree_entry_is_submodule(te))
2249 			modestr = "$";
2250 		else if (S_ISLNK(mode))
2251 			modestr = "@";
2252 		else if (S_ISDIR(mode))
2253 			modestr = "/";
2254 		else if (mode & S_IXUSR)
2255 			modestr = "*";
2256 
2257 		char *build_folder = NULL;
2258 		if (S_ISDIR(got_tree_entry_get_mode(te))) {
2259 			if (gw_trans->repo_folder != NULL) {
2260 				if ((asprintf(&build_folder, "%s/%s",
2261 				    gw_trans->repo_folder,
2262 				    got_tree_entry_get_name(te))) == -1) {
2263 					error =
2264 					    got_error_from_errno("asprintf");
2265 					goto done;
2266 				}
2267 			} else {
2268 				if (asprintf(&build_folder, "%s",
2269 				    got_tree_entry_get_name(te)) == -1)
2270 					goto done;
2271 			}
2272 
2273 			if ((asprintf(&url_html, folder_html,
2274 			    gw_trans->repo_name, gw_trans->action_name,
2275 			    gw_trans->commit, build_folder,
2276 			    got_tree_entry_get_name(te), modestr)) == -1) {
2277 				error = got_error_from_errno("asprintf");
2278 				goto done;
2279 			}
2280 		} else {
2281 			if (gw_trans->repo_folder != NULL) {
2282 				if ((asprintf(&build_folder, "%s",
2283 				    gw_trans->repo_folder)) == -1) {
2284 					error =
2285 					    got_error_from_errno("asprintf");
2286 					goto done;
2287 				}
2288 			} else
2289 				build_folder = strdup("");
2290 
2291 			if ((asprintf(&url_html, file_html, gw_trans->repo_name,
2292 			    "blame", gw_trans->commit,
2293 			    got_tree_entry_get_name(te), build_folder,
2294 			    got_tree_entry_get_name(te), modestr)) == -1) {
2295 				error = got_error_from_errno("asprintf");
2296 				goto done;
2297 			}
2298 		}
2299 		free(build_folder);
2300 
2301 		if (error)
2302 			goto done;
2303 
2304 		if ((asprintf(&tree_row, tree_line, url_html)) == -1) {
2305 			error = got_error_from_errno("asprintf");
2306 			goto done;
2307 		}
2308 		error = buf_puts(&newsize, diffbuf, tree_row);
2309 		if (error)
2310 			goto done;
2311 
2312 		free(id);
2313 		free(id_str);
2314 		free(url_html);
2315 		free(tree_row);
2316 	}
2317 
2318 	if (buf_len(diffbuf) > 0) {
2319 		error = buf_putc(diffbuf, '\0');
2320 		tree_html = strdup(buf_get(diffbuf));
2321 	}
2322 done:
2323 	if (tree)
2324 		got_object_tree_close(tree);
2325 	if (repo)
2326 		got_repo_close(repo);
2327 
2328 	free(in_repo_path);
2329 	free(tree_id);
2330 	free(diffbuf);
2331 	if (error)
2332 		return NULL;
2333 	else
2334 		return tree_html;
2335 }
2336 
2337 static char *
2338 gw_get_repo_heads(struct gw_trans *gw_trans)
2339 {
2340 	const struct got_error *error = NULL;
2341 	struct got_repository *repo = NULL;
2342 	struct got_reflist_head refs;
2343 	struct got_reflist_entry *re;
2344 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
2345 	struct buf *diffbuf = NULL;
2346 	size_t newsize;
2347 
2348 	error = buf_alloc(&diffbuf, 0);
2349 	if (error)
2350 		return NULL;
2351 
2352 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2353 	if (error)
2354 		goto done;
2355 
2356 	SIMPLEQ_INIT(&refs);
2357 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
2358 	    NULL);
2359 	if (error)
2360 		goto done;
2361 
2362 	SIMPLEQ_FOREACH(re, &refs, entry) {
2363 		char *refname;
2364 
2365 		refname = strdup(got_ref_get_name(re->ref));
2366 		if (refname == NULL) {
2367 			error = got_error_from_errno("got_ref_to_str");
2368 			goto done;
2369 		}
2370 
2371 		if (strncmp(refname, "refs/heads/", 11) != 0) {
2372 			free(refname);
2373 			continue;
2374 		}
2375 
2376 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path, refname,
2377 		    TM_DIFF);
2378 
2379 		if ((asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
2380 		    refname, gw_trans->repo_name, refname,
2381 		    gw_trans->repo_name, refname, gw_trans->repo_name,
2382 		    refname)) == -1) {
2383 			error = got_error_from_errno("asprintf");
2384 			goto done;
2385 		}
2386 
2387 		if (strncmp(refname, "refs/heads/", 11) == 0)
2388 			refname += 11;
2389 
2390 		if ((asprintf(&head_row, heads_row, age, refname,
2391 		    head_navs_disp)) == -1) {
2392 			error = got_error_from_errno("asprintf");
2393 			goto done;
2394 		}
2395 
2396 		error = buf_puts(&newsize, diffbuf, head_row);
2397 
2398 		free(head_navs_disp);
2399 		free(head_row);
2400 	}
2401 
2402 	if (buf_len(diffbuf) > 0) {
2403 		error = buf_putc(diffbuf, '\0');
2404 		heads = strdup(buf_get(diffbuf));
2405 	}
2406 done:
2407 	buf_free(diffbuf);
2408 	got_ref_list_free(&refs);
2409 	if (repo)
2410 		got_repo_close(repo);
2411 	if (error)
2412 		return NULL;
2413 	else
2414 		return heads;
2415 }
2416 
2417 static char *
2418 gw_get_got_link(struct gw_trans *gw_trans)
2419 {
2420 	char *link;
2421 
2422 	if ((asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
2423 	    gw_trans->gw_conf->got_logo)) == -1)
2424 		return NULL;
2425 
2426 	return link;
2427 }
2428 
2429 static char *
2430 gw_get_site_link(struct gw_trans *gw_trans)
2431 {
2432 	char *link, *repo = "", *action = "";
2433 
2434 	if (gw_trans->repo_name != NULL)
2435 		if ((asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
2436 		    "</a>", gw_trans->repo_name, gw_trans->repo_name)) == -1)
2437 			return NULL;
2438 
2439 	if (gw_trans->action_name != NULL)
2440 		if ((asprintf(&action, " / %s", gw_trans->action_name)) == -1)
2441 			return NULL;
2442 
2443 	if ((asprintf(&link, site_link, GOTWEB,
2444 	    gw_trans->gw_conf->got_site_link, repo, action)) == -1)
2445 		return NULL;
2446 
2447 	return link;
2448 }
2449 
2450 static char *
2451 gw_colordiff_line(char *buf)
2452 {
2453 	const struct got_error *error = NULL;
2454 	char *colorized_line = NULL, *div_diff_line_div = NULL, *color = NULL;
2455 	struct buf *diffbuf = NULL;
2456 	size_t newsize;
2457 
2458 	error = buf_alloc(&diffbuf, 0);
2459 	if (error)
2460 		return NULL;
2461 
2462 	if (buf == NULL)
2463 		return NULL;
2464 	if (strncmp(buf, "-", 1) == 0)
2465 		color = "diff_minus";
2466 	if (strncmp(buf, "+", 1) == 0)
2467 		color = "diff_plus";
2468 	if (strncmp(buf, "@@", 2) == 0)
2469 		color = "diff_chunk_header";
2470 	if (strncmp(buf, "@@", 2) == 0)
2471 		color = "diff_chunk_header";
2472 	if (strncmp(buf, "commit +", 8) == 0)
2473 		color = "diff_meta";
2474 	if (strncmp(buf, "commit -", 8) == 0)
2475 		color = "diff_meta";
2476 	if (strncmp(buf, "blob +", 6) == 0)
2477 		color = "diff_meta";
2478 	if (strncmp(buf, "blob -", 6) == 0)
2479 		color = "diff_meta";
2480 	if (strncmp(buf, "file +", 6) == 0)
2481 		color = "diff_meta";
2482 	if (strncmp(buf, "file -", 6) == 0)
2483 		color = "diff_meta";
2484 	if (strncmp(buf, "from:", 5) == 0)
2485 		color = "diff_author";
2486 	if (strncmp(buf, "via:", 4) == 0)
2487 		color = "diff_author";
2488 	if (strncmp(buf, "date:", 5) == 0)
2489 		color = "diff_date";
2490 
2491 	if ((asprintf(&div_diff_line_div, div_diff_line, color)) == -1)
2492 		return NULL;
2493 
2494 	error = buf_puts(&newsize, diffbuf, div_diff_line_div);
2495 	if (error)
2496 		return NULL;
2497 
2498 	error = buf_puts(&newsize, diffbuf, buf);
2499 	if (error)
2500 		return NULL;
2501 
2502 	if (buf_len(diffbuf) > 0) {
2503 		error = buf_putc(diffbuf, '\0');
2504 		colorized_line = strdup(buf_get(diffbuf));
2505 	}
2506 
2507 	free(diffbuf);
2508 	free(div_diff_line_div);
2509 	return colorized_line;
2510 }
2511 
2512 static char *
2513 gw_html_escape(const char *html)
2514 {
2515 	char *escaped_str = NULL, *buf;
2516 	char c[1];
2517 	size_t sz, i, buff_sz = 2048;
2518 
2519 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2520 		return NULL;
2521 
2522 	if (html == NULL)
2523 		return NULL;
2524 	else
2525 		if ((sz = strlen(html)) == 0)
2526 			return NULL;
2527 
2528 	/* only work with buff_sz */
2529 	if (buff_sz < sz)
2530 		sz = buff_sz;
2531 
2532 	for (i = 0; i < sz; i++) {
2533 		c[0] = html[i];
2534 		switch (c[0]) {
2535 		case ('>'):
2536 			strcat(buf, "&gt;");
2537 			break;
2538 		case ('&'):
2539 			strcat(buf, "&amp;");
2540 			break;
2541 		case ('<'):
2542 			strcat(buf, "&lt;");
2543 			break;
2544 		case ('"'):
2545 			strcat(buf, "&quot;");
2546 			break;
2547 		case ('\''):
2548 			strcat(buf, "&apos;");
2549 			break;
2550 		case ('\n'):
2551 			strcat(buf, "<br />");
2552 		default:
2553 			strcat(buf, &c[0]);
2554 			break;
2555 		}
2556 	}
2557 	asprintf(&escaped_str, "%s", buf);
2558 	free(buf);
2559 	return escaped_str;
2560 }
2561 
2562 int
2563 main(int argc, char *argv[])
2564 {
2565 	const struct got_error *error = NULL;
2566 	struct gw_trans *gw_trans;
2567 	struct gw_dir *dir = NULL, *tdir;
2568 	const char *page = "index";
2569 	int gw_malloc = 1;
2570 
2571 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
2572 		errx(1, "malloc");
2573 
2574 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2575 		errx(1, "malloc");
2576 
2577 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2578 		errx(1, "malloc");
2579 
2580 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2581 		errx(1, "malloc");
2582 
2583 	if (KCGI_OK != khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX,
2584 	    &page, 1, 0))
2585 		errx(1, "khttp_parse");
2586 
2587 	if ((gw_trans->gw_conf =
2588 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2589 		gw_malloc = 0;
2590 		error = got_error_from_errno("malloc");
2591 		goto err;
2592 	}
2593 
2594 	TAILQ_INIT(&gw_trans->gw_dirs);
2595 	TAILQ_INIT(&gw_trans->gw_headers);
2596 
2597 	gw_trans->page = 0;
2598 	gw_trans->repos_total = 0;
2599 	gw_trans->repo_path = NULL;
2600 	gw_trans->commit = NULL;
2601 	gw_trans->headref = strdup(GOT_REF_HEAD);
2602 	gw_trans->mime = KMIME_TEXT_HTML;
2603 	gw_trans->gw_tmpl->key = gw_templs;
2604 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2605 	gw_trans->gw_tmpl->arg = gw_trans;
2606 	gw_trans->gw_tmpl->cb = gw_template;
2607 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2608 
2609 err:
2610 	if (error) {
2611 		gw_trans->mime = KMIME_TEXT_PLAIN;
2612 		gw_trans->action = GW_ERR;
2613 		gw_display_index(gw_trans, error);
2614 		goto done;
2615 	}
2616 
2617 	error = gw_parse_querystring(gw_trans);
2618 	if (error)
2619 		goto err;
2620 
2621 	gw_display_index(gw_trans, error);
2622 
2623 done:
2624 	if (gw_malloc) {
2625 		free(gw_trans->gw_conf->got_repos_path);
2626 		free(gw_trans->gw_conf->got_www_path);
2627 		free(gw_trans->gw_conf->got_site_name);
2628 		free(gw_trans->gw_conf->got_site_owner);
2629 		free(gw_trans->gw_conf->got_site_link);
2630 		free(gw_trans->gw_conf->got_logo);
2631 		free(gw_trans->gw_conf->got_logo_url);
2632 		free(gw_trans->gw_conf);
2633 		free(gw_trans->commit);
2634 		free(gw_trans->repo_path);
2635 		free(gw_trans->repo_name);
2636 		free(gw_trans->repo_file);
2637 		free(gw_trans->action_name);
2638 		free(gw_trans->headref);
2639 
2640 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
2641 			free(dir->name);
2642 			free(dir->description);
2643 			free(dir->age);
2644 			free(dir->url);
2645 			free(dir->path);
2646 			free(dir);
2647 		}
2648 
2649 	}
2650 
2651 	khttp_free(gw_trans->gw_req);
2652 	return EXIT_SUCCESS;
2653 }