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a hyperfast web frontend for git written in c

ui-shared.c (view raw)

  1/* ui-shared.c: common web output functions
  2 *
  3 * Copyright (C) 2006 Lars Hjemli
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10#include "cmd.h"
 11#include "html.h"
 12
 13const char cgit_doctype[] =
 14"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
 15"  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
 16
 17static char *http_date(time_t t)
 18{
 19	static char day[][4] =
 20		{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
 21	static char month[][4] =
 22		{"Jan", "Feb", "Mar", "Apr", "May", "Jun",
 23		 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
 24	struct tm *tm = gmtime(&t);
 25	return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
 26		   tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
 27		   tm->tm_hour, tm->tm_min, tm->tm_sec);
 28}
 29
 30void cgit_print_error(const char *msg)
 31{
 32	html("<div class='error'>");
 33	html_txt(msg);
 34	html("</div>\n");
 35}
 36
 37char *cgit_httpscheme()
 38{
 39	if (ctx.env.https && !strcmp(ctx.env.https, "on"))
 40		return "https://";
 41	else
 42		return "http://";
 43}
 44
 45char *cgit_hosturl()
 46{
 47	if (ctx.env.http_host)
 48		return ctx.env.http_host;
 49	if (!ctx.env.server_name)
 50		return NULL;
 51	if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
 52		return ctx.env.server_name;
 53	return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
 54}
 55
 56char *cgit_rooturl()
 57{
 58	if (ctx.cfg.virtual_root)
 59		return fmt("%s/", ctx.cfg.virtual_root);
 60	else
 61		return ctx.cfg.script_name;
 62}
 63
 64char *cgit_repourl(const char *reponame)
 65{
 66	if (ctx.cfg.virtual_root) {
 67		return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
 68	} else {
 69		return fmt("?r=%s", reponame);
 70	}
 71}
 72
 73char *cgit_fileurl(const char *reponame, const char *pagename,
 74		   const char *filename, const char *query)
 75{
 76	char *tmp;
 77	char *delim;
 78
 79	if (ctx.cfg.virtual_root) {
 80		tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
 81			  pagename, (filename ? filename:""));
 82		delim = "?";
 83	} else {
 84		tmp = fmt("?url=%s/%s/%s", reponame, pagename,
 85			  (filename ? filename : ""));
 86		delim = "&";
 87	}
 88	if (query)
 89		tmp = fmt("%s%s%s", tmp, delim, query);
 90	return tmp;
 91}
 92
 93char *cgit_pageurl(const char *reponame, const char *pagename,
 94		   const char *query)
 95{
 96	return cgit_fileurl(reponame,pagename,0,query);
 97}
 98
 99const char *cgit_repobasename(const char *reponame)
100{
101	/* I assume we don't need to store more than one repo basename */
102	static char rvbuf[1024];
103	int p;
104	const char *rv;
105	strncpy(rvbuf,reponame,sizeof(rvbuf));
106	if(rvbuf[sizeof(rvbuf)-1])
107		die("cgit_repobasename: truncated repository name '%s'", reponame);
108	p = strlen(rvbuf)-1;
109	/* strip trailing slashes */
110	while(p && rvbuf[p]=='/') rvbuf[p--]=0;
111	/* strip trailing .git */
112	if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
113		p -= 3; rvbuf[p--] = 0;
114	}
115	/* strip more trailing slashes if any */
116	while( p && rvbuf[p]=='/') rvbuf[p--]=0;
117	/* find last slash in the remaining string */
118	rv = strrchr(rvbuf,'/');
119	if(rv)
120		return ++rv;
121	return rvbuf;
122}
123
124char *cgit_currurl()
125{
126	if (!ctx.cfg.virtual_root)
127		return ctx.cfg.script_name;
128	else if (ctx.qry.page)
129		return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
130	else if (ctx.qry.repo)
131		return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
132	else
133		return fmt("%s/", ctx.cfg.virtual_root);
134}
135
136static void site_url(const char *page, const char *search, int ofs)
137{
138	char *delim = "?";
139
140	if (ctx.cfg.virtual_root) {
141		html_attr(ctx.cfg.virtual_root);
142		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
143			html("/");
144	} else
145		html(ctx.cfg.script_name);
146
147	if (page) {
148		htmlf("?p=%s", page);
149		delim = "&";
150	}
151	if (search) {
152		html(delim);
153		html("q=");
154		html_attr(search);
155		delim = "&";
156	}
157	if (ofs) {
158		html(delim);
159		htmlf("ofs=%d", ofs);
160	}
161}
162
163static void site_link(const char *page, const char *name, const char *title,
164		      const char *class, const char *search, int ofs)
165{
166	html("<a");
167	if (title) {
168		html(" title='");
169		html_attr(title);
170		html("'");
171	}
172	if (class) {
173		html(" class='");
174		html_attr(class);
175		html("'");
176	}
177	html(" href='");
178	site_url(page, search, ofs);
179	html("'>");
180	html_txt(name);
181	html("</a>");
182}
183
184void cgit_index_link(const char *name, const char *title, const char *class,
185		     const char *pattern, int ofs)
186{
187	site_link(NULL, name, title, class, pattern, ofs);
188}
189
190static char *repolink(const char *title, const char *class, const char *page,
191		      const char *head, const char *path)
192{
193	char *delim = "?";
194
195	html("<a");
196	if (title) {
197		html(" title='");
198		html_attr(title);
199		html("'");
200	}
201	if (class) {
202		html(" class='");
203		html_attr(class);
204		html("'");
205	}
206	html(" href='");
207	if (ctx.cfg.virtual_root) {
208		html_url_path(ctx.cfg.virtual_root);
209		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
210			html("/");
211		html_url_path(ctx.repo->url);
212		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
213			html("/");
214		if (page) {
215			html_url_path(page);
216			html("/");
217			if (path)
218				html_url_path(path);
219		}
220	} else {
221		html(ctx.cfg.script_name);
222		html("?url=");
223		html_url_arg(ctx.repo->url);
224		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
225			html("/");
226		if (page) {
227			html_url_arg(page);
228			html("/");
229			if (path)
230				html_url_arg(path);
231		}
232		delim = "&amp;";
233	}
234	if (head && strcmp(head, ctx.repo->defbranch)) {
235		html(delim);
236		html("h=");
237		html_url_arg(head);
238		delim = "&amp;";
239	}
240	return fmt("%s", delim);
241}
242
243static void reporevlink(const char *page, const char *name, const char *title,
244			const char *class, const char *head, const char *rev,
245			const char *path)
246{
247	char *delim;
248
249	delim = repolink(title, class, page, head, path);
250	if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
251		html(delim);
252		html("id=");
253		html_url_arg(rev);
254	}
255	html("'>");
256	html_txt(name);
257	html("</a>");
258}
259
260void cgit_summary_link(const char *name, const char *title, const char *class,
261		       const char *head)
262{
263	reporevlink(NULL, name, title, class, head, NULL, NULL);
264}
265
266void cgit_tag_link(const char *name, const char *title, const char *class,
267		   const char *head, const char *rev)
268{
269	reporevlink("tag", name, title, class, head, rev, NULL);
270}
271
272void cgit_tree_link(const char *name, const char *title, const char *class,
273		    const char *head, const char *rev, const char *path)
274{
275	reporevlink("tree", name, title, class, head, rev, path);
276}
277
278void cgit_plain_link(const char *name, const char *title, const char *class,
279		     const char *head, const char *rev, const char *path)
280{
281	reporevlink("plain", name, title, class, head, rev, path);
282}
283
284void cgit_log_link(const char *name, const char *title, const char *class,
285		   const char *head, const char *rev, const char *path,
286		   int ofs, const char *grep, const char *pattern, int showmsg)
287{
288	char *delim;
289
290	delim = repolink(title, class, "log", head, path);
291	if (rev && strcmp(rev, ctx.qry.head)) {
292		html(delim);
293		html("id=");
294		html_url_arg(rev);
295		delim = "&";
296	}
297	if (grep && pattern) {
298		html(delim);
299		html("qt=");
300		html_url_arg(grep);
301		delim = "&";
302		html(delim);
303		html("q=");
304		html_url_arg(pattern);
305	}
306	if (ofs > 0) {
307		html(delim);
308		html("ofs=");
309		htmlf("%d", ofs);
310		delim = "&";
311	}
312	if (showmsg) {
313		html(delim);
314		html("showmsg=1");
315	}
316	html("'>");
317	html_txt(name);
318	html("</a>");
319}
320
321void cgit_commit_link(char *name, const char *title, const char *class,
322		      const char *head, const char *rev, const char *path,
323		      int toggle_ssdiff)
324{
325	if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
326		name[ctx.cfg.max_msg_len] = '\0';
327		name[ctx.cfg.max_msg_len - 1] = '.';
328		name[ctx.cfg.max_msg_len - 2] = '.';
329		name[ctx.cfg.max_msg_len - 3] = '.';
330	}
331
332	char *delim;
333
334	delim = repolink(title, class, "commit", head, path);
335	if (rev && strcmp(rev, ctx.qry.head)) {
336		html(delim);
337		html("id=");
338		html_url_arg(rev);
339		delim = "&amp;";
340	}
341	if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
342		html(delim);
343		html("ss=1");
344	}
345	html("'>");
346	html_txt(name);
347	html("</a>");
348}
349
350void cgit_refs_link(const char *name, const char *title, const char *class,
351		    const char *head, const char *rev, const char *path)
352{
353	reporevlink("refs", name, title, class, head, rev, path);
354}
355
356void cgit_snapshot_link(const char *name, const char *title, const char *class,
357			const char *head, const char *rev,
358			const char *archivename)
359{
360	reporevlink("snapshot", name, title, class, head, rev, archivename);
361}
362
363void cgit_diff_link(const char *name, const char *title, const char *class,
364		    const char *head, const char *new_rev, const char *old_rev,
365		    const char *path, int toggle_ssdiff)
366{
367	char *delim;
368
369	delim = repolink(title, class, "diff", head, path);
370	if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
371		html(delim);
372		html("id=");
373		html_url_arg(new_rev);
374		delim = "&amp;";
375	}
376	if (old_rev) {
377		html(delim);
378		html("id2=");
379		html_url_arg(old_rev);
380		delim = "&amp;";
381	}
382	if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
383		html(delim);
384		html("ss=1");
385	}
386	html("'>");
387	html_txt(name);
388	html("</a>");
389}
390
391void cgit_patch_link(const char *name, const char *title, const char *class,
392		     const char *head, const char *rev, const char *path)
393{
394	reporevlink("patch", name, title, class, head, rev, path);
395}
396
397void cgit_stats_link(const char *name, const char *title, const char *class,
398		     const char *head, const char *path)
399{
400	reporevlink("stats", name, title, class, head, NULL, path);
401}
402
403void cgit_self_link(char *name, const char *title, const char *class,
404		    struct cgit_context *ctx)
405{
406	if (!strcmp(ctx->qry.page, "repolist"))
407		return cgit_index_link(name, title, class, ctx->qry.search,
408				       ctx->qry.ofs);
409	else if (!strcmp(ctx->qry.page, "summary"))
410		return cgit_summary_link(name, title, class, ctx->qry.head);
411	else if (!strcmp(ctx->qry.page, "tag"))
412		return cgit_tag_link(name, title, class, ctx->qry.head,
413				     ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
414	else if (!strcmp(ctx->qry.page, "tree"))
415		return cgit_tree_link(name, title, class, ctx->qry.head,
416				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
417				      ctx->qry.path);
418	else if (!strcmp(ctx->qry.page, "plain"))
419		return cgit_plain_link(name, title, class, ctx->qry.head,
420				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
421				      ctx->qry.path);
422	else if (!strcmp(ctx->qry.page, "log"))
423		return cgit_log_link(name, title, class, ctx->qry.head,
424				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
425				      ctx->qry.path, ctx->qry.ofs,
426				      ctx->qry.grep, ctx->qry.search,
427				      ctx->qry.showmsg);
428	else if (!strcmp(ctx->qry.page, "commit"))
429		return cgit_commit_link(name, title, class, ctx->qry.head,
430				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
431				      ctx->qry.path, 0);
432	else if (!strcmp(ctx->qry.page, "patch"))
433		return cgit_patch_link(name, title, class, ctx->qry.head,
434				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
435				      ctx->qry.path);
436	else if (!strcmp(ctx->qry.page, "refs"))
437		return cgit_refs_link(name, title, class, ctx->qry.head,
438				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
439				      ctx->qry.path);
440	else if (!strcmp(ctx->qry.page, "snapshot"))
441		return cgit_snapshot_link(name, title, class, ctx->qry.head,
442				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
443				      ctx->qry.path);
444	else if (!strcmp(ctx->qry.page, "diff"))
445		return cgit_diff_link(name, title, class, ctx->qry.head,
446				      ctx->qry.sha1, ctx->qry.sha2,
447				      ctx->qry.path, 0);
448	else if (!strcmp(ctx->qry.page, "stats"))
449		return cgit_stats_link(name, title, class, ctx->qry.head,
450				      ctx->qry.path);
451
452	/* Don't known how to make link for this page */
453	repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
454	html("><!-- cgit_self_link() doesn't know how to make link for page '");
455	html_txt(ctx->qry.page);
456	html("' -->");
457	html_txt(name);
458	html("</a>");
459}
460
461void cgit_object_link(struct object *obj)
462{
463	char *page, *shortrev, *fullrev, *name;
464
465	fullrev = sha1_to_hex(obj->sha1);
466	shortrev = xstrdup(fullrev);
467	shortrev[10] = '\0';
468	if (obj->type == OBJ_COMMIT) {
469                cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
470				 ctx.qry.head, fullrev, NULL, 0);
471		return;
472	} else if (obj->type == OBJ_TREE)
473		page = "tree";
474	else if (obj->type == OBJ_TAG)
475		page = "tag";
476	else
477		page = "blob";
478	name = fmt("%s %s...", typename(obj->type), shortrev);
479	reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
480}
481
482void cgit_print_date(time_t secs, const char *format, int local_time)
483{
484	char buf[64];
485	struct tm *time;
486
487	if (!secs)
488		return;
489	if(local_time)
490		time = localtime(&secs);
491	else
492		time = gmtime(&secs);
493	strftime(buf, sizeof(buf)-1, format, time);
494	html_txt(buf);
495}
496
497void cgit_print_age(time_t t, time_t max_relative, const char *format)
498{
499	time_t now, secs;
500
501	if (!t)
502		return;
503	time(&now);
504	secs = now - t;
505
506	if (secs > max_relative && max_relative >= 0) {
507		cgit_print_date(t, format, ctx.cfg.local_time);
508		return;
509	}
510
511	if (secs < TM_HOUR * 2) {
512		htmlf("<span class='age-mins'>%.0f min.</span>",
513		      secs * 1.0 / TM_MIN);
514		return;
515	}
516	if (secs < TM_DAY * 2) {
517		htmlf("<span class='age-hours'>%.0f hours</span>",
518		      secs * 1.0 / TM_HOUR);
519		return;
520	}
521	if (secs < TM_WEEK * 2) {
522		htmlf("<span class='age-days'>%.0f days</span>",
523		      secs * 1.0 / TM_DAY);
524		return;
525	}
526	if (secs < TM_MONTH * 2) {
527		htmlf("<span class='age-weeks'>%.0f weeks</span>",
528		      secs * 1.0 / TM_WEEK);
529		return;
530	}
531	if (secs < TM_YEAR * 2) {
532		htmlf("<span class='age-months'>%.0f months</span>",
533		      secs * 1.0 / TM_MONTH);
534		return;
535	}
536	htmlf("<span class='age-years'>%.0f years</span>",
537	      secs * 1.0 / TM_YEAR);
538}
539
540void cgit_print_http_headers(struct cgit_context *ctx)
541{
542	if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
543		return;
544
545	if (ctx->page.status)
546		htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
547	if (ctx->page.mimetype && ctx->page.charset)
548		htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
549		      ctx->page.charset);
550	else if (ctx->page.mimetype)
551		htmlf("Content-Type: %s\n", ctx->page.mimetype);
552	if (ctx->page.size)
553		htmlf("Content-Length: %ld\n", ctx->page.size);
554	if (ctx->page.filename)
555		htmlf("Content-Disposition: inline; filename=\"%s\"\n",
556		      ctx->page.filename);
557	htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
558	htmlf("Expires: %s\n", http_date(ctx->page.expires));
559	if (ctx->page.etag)
560		htmlf("ETag: \"%s\"\n", ctx->page.etag);
561	html("\n");
562	if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
563		exit(0);
564}
565
566void cgit_print_docstart(struct cgit_context *ctx)
567{
568	if (ctx->cfg.embedded) {
569		if (ctx->cfg.header)
570			html_include(ctx->cfg.header);
571		return;
572	}
573
574	char *host = cgit_hosturl();
575	html(cgit_doctype);
576	html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
577	html("<head>\n");
578	html("<title>");
579	html_txt(ctx->page.title);
580	html("</title>\n");
581	htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
582	if (ctx->cfg.robots && *ctx->cfg.robots)
583		htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
584	html("<link rel='stylesheet' type='text/css' href='");
585	html_attr(ctx->cfg.css);
586	html("'/>\n");
587	if (ctx->cfg.favicon) {
588		html("<link rel='shortcut icon' href='");
589		html_attr(ctx->cfg.favicon);
590		html("'/>\n");
591	}
592	if (host && ctx->repo) {
593		html("<link rel='alternate' title='Atom feed' href='");
594		html(cgit_httpscheme());
595		html_attr(cgit_hosturl());
596		html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
597				       fmt("h=%s", ctx->qry.head)));
598		html("' type='application/atom+xml'/>\n");
599	}
600	if (ctx->cfg.head_include)
601		html_include(ctx->cfg.head_include);
602	html("</head>\n");
603	html("<body>\n");
604	if (ctx->cfg.header)
605		html_include(ctx->cfg.header);
606}
607
608void cgit_print_docend()
609{
610	html("</div> <!-- class=content -->\n");
611	if (ctx.cfg.embedded) {
612		html("</div> <!-- id=cgit -->\n");
613		if (ctx.cfg.footer)
614			html_include(ctx.cfg.footer);
615		return;
616	}
617	if (ctx.cfg.footer)
618		html_include(ctx.cfg.footer);
619	else {
620		htmlf("<div class='footer'>generated  by cgit %s at ",
621			cgit_version);
622		cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
623		html("</div>\n");
624	}
625	html("</div> <!-- id=cgit -->\n");
626	html("</body>\n</html>\n");
627}
628
629int print_branch_option(const char *refname, const unsigned char *sha1,
630			int flags, void *cb_data)
631{
632	char *name = (char *)refname;
633	html_option(name, name, ctx.qry.head);
634	return 0;
635}
636
637int print_archive_ref(const char *refname, const unsigned char *sha1,
638		       int flags, void *cb_data)
639{
640	struct tag *tag;
641	struct taginfo *info;
642	struct object *obj;
643	char buf[256], *url;
644	unsigned char fileid[20];
645	int *header = (int *)cb_data;
646
647	if (prefixcmp(refname, "refs/archives"))
648		return 0;
649	strncpy(buf, refname+14, sizeof(buf));
650	obj = parse_object(sha1);
651	if (!obj)
652		return 1;
653	if (obj->type == OBJ_TAG) {
654		tag = lookup_tag(sha1);
655		if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
656			return 0;
657		hashcpy(fileid, tag->tagged->sha1);
658	} else if (obj->type != OBJ_BLOB) {
659		return 0;
660	} else {
661		hashcpy(fileid, sha1);
662	}
663	if (!*header) {
664		html("<h1>download</h1>\n");
665		*header = 1;
666	}
667	url = cgit_pageurl(ctx.qry.repo, "blob",
668			   fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
669			       buf));
670	html_link_open(url, NULL, "menu");
671	html_txt(strlpart(buf, 20));
672	html_link_close();
673	return 0;
674}
675
676void cgit_add_hidden_formfields(int incl_head, int incl_search,
677				const char *page)
678{
679	char *url;
680
681	if (!ctx.cfg.virtual_root) {
682		url = fmt("%s/%s", ctx.qry.repo, page);
683		if (ctx.qry.vpath)
684			url = fmt("%s/%s", url, ctx.qry.vpath);
685		html_hidden("url", url);
686	}
687
688	if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
689	    strcmp(ctx.qry.head, ctx.repo->defbranch))
690		html_hidden("h", ctx.qry.head);
691
692	if (ctx.qry.sha1)
693		html_hidden("id", ctx.qry.sha1);
694	if (ctx.qry.sha2)
695		html_hidden("id2", ctx.qry.sha2);
696	if (ctx.qry.showmsg)
697		html_hidden("showmsg", "1");
698
699	if (incl_search) {
700		if (ctx.qry.grep)
701			html_hidden("qt", ctx.qry.grep);
702		if (ctx.qry.search)
703			html_hidden("q", ctx.qry.search);
704	}
705}
706
707static const char *hc(struct cgit_context *ctx, const char *page)
708{
709	return strcmp(ctx->qry.page, page) ? NULL : "active";
710}
711
712static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
713{
714	char *old_path = ctx->qry.path;
715	char *p = path, *q, *end = path + strlen(path);
716
717	ctx->qry.path = NULL;
718	cgit_self_link("root", NULL, NULL, ctx);
719	ctx->qry.path = p = path;
720	while (p < end) {
721		if (!(q = strchr(p, '/')))
722			q = end;
723		*q = '\0';
724		html_txt("/");
725		cgit_self_link(p, NULL, NULL, ctx);
726		if (q < end)
727			*q = '/';
728		p = q + 1;
729	}
730	ctx->qry.path = old_path;
731}
732
733static void print_header(struct cgit_context *ctx)
734{
735	html("<table id='header'>\n");
736	html("<tr>\n");
737
738	if (ctx->cfg.logo && ctx->cfg.logo[0] != 0) {
739		html("<td class='logo' rowspan='2'><a href='");
740		if (ctx->cfg.logo_link)
741			html_attr(ctx->cfg.logo_link);
742		else
743			html_attr(cgit_rooturl());
744		html("'><img src='");
745		html_attr(ctx->cfg.logo);
746		html("' alt='cgit logo'/></a></td>\n");
747	}
748
749	html("<td class='main'>");
750	if (ctx->repo) {
751		cgit_index_link("index", NULL, NULL, NULL, 0);
752		html(" : ");
753		cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
754		html("</td><td class='form'>");
755		html("<form method='get' action=''>\n");
756		cgit_add_hidden_formfields(0, 1, ctx->qry.page);
757		html("<select name='h' onchange='this.form.submit();'>\n");
758		for_each_branch_ref(print_branch_option, ctx->qry.head);
759		html("</select> ");
760		html("<input type='submit' name='' value='switch'/>");
761		html("</form>");
762	} else
763		html_txt(ctx->cfg.root_title);
764	html("</td></tr>\n");
765
766	html("<tr><td class='sub'>");
767	if (ctx->repo) {
768		html_txt(ctx->repo->desc);
769		html("</td><td class='sub right'>");
770		html_txt(ctx->repo->owner);
771	} else {
772		if (ctx->cfg.root_desc)
773			html_txt(ctx->cfg.root_desc);
774		else if (ctx->cfg.index_info)
775			html_include(ctx->cfg.index_info);
776	}
777	html("</td></tr></table>\n");
778}
779
780void cgit_print_pageheader(struct cgit_context *ctx)
781{
782	html("<div id='cgit'>");
783	if (!ctx->cfg.noheader)
784		print_header(ctx);
785
786	html("<table class='tabs'><tr><td>\n");
787	if (ctx->repo) {
788		cgit_summary_link("summary", NULL, hc(ctx, "summary"),
789				  ctx->qry.head);
790		cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
791			       ctx->qry.sha1, NULL);
792		cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
793			      NULL, NULL, 0, NULL, NULL, ctx->qry.showmsg);
794		cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
795			       ctx->qry.sha1, NULL);
796		cgit_commit_link("commit", NULL, hc(ctx, "commit"),
797				 ctx->qry.head, ctx->qry.sha1, NULL, 0);
798		cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
799			       ctx->qry.sha1, ctx->qry.sha2, NULL, 0);
800		if (ctx->repo->max_stats)
801			cgit_stats_link("stats", NULL, hc(ctx, "stats"),
802					ctx->qry.head, NULL);
803		if (ctx->repo->readme)
804			reporevlink("about", "about", NULL,
805				    hc(ctx, "about"), ctx->qry.head, NULL,
806				    NULL);
807		html("</td><td class='form'>");
808		html("<form class='right' method='get' action='");
809		if (ctx->cfg.virtual_root)
810			html_url_path(cgit_fileurl(ctx->qry.repo, "log",
811						   ctx->qry.vpath, NULL));
812		html("'>\n");
813		cgit_add_hidden_formfields(1, 0, "log");
814		html("<select name='qt'>\n");
815		html_option("grep", "log msg", ctx->qry.grep);
816		html_option("author", "author", ctx->qry.grep);
817		html_option("committer", "committer", ctx->qry.grep);
818		html("</select>\n");
819		html("<input class='txt' type='text' size='10' name='q' value='");
820		html_attr(ctx->qry.search);
821		html("'/>\n");
822		html("<input type='submit' value='search'/>\n");
823		html("</form>\n");
824	} else {
825		site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, 0);
826		if (ctx->cfg.root_readme)
827			site_link("about", "about", NULL, hc(ctx, "about"),
828				  NULL, 0);
829		html("</td><td class='form'>");
830		html("<form method='get' action='");
831		html_attr(cgit_rooturl());
832		html("'>\n");
833		html("<input type='text' name='q' size='10' value='");
834		html_attr(ctx->qry.search);
835		html("'/>\n");
836		html("<input type='submit' value='search'/>\n");
837		html("</form>");
838	}
839	html("</td></tr></table>\n");
840	if (ctx->qry.vpath) {
841		html("<div class='path'>");
842		html("path: ");
843		cgit_print_path_crumbs(ctx, ctx->qry.vpath);
844		html("</div>");
845	}
846	html("<div class='content'>");
847}
848
849void cgit_print_filemode(unsigned short mode)
850{
851	if (S_ISDIR(mode))
852		html("d");
853	else if (S_ISLNK(mode))
854		html("l");
855	else if (S_ISGITLINK(mode))
856		html("m");
857	else
858		html("-");
859	html_fileperm(mode >> 6);
860	html_fileperm(mode >> 3);
861	html_fileperm(mode);
862}
863
864void cgit_print_snapshot_links(const char *repo, const char *head,
865			       const char *hex, int snapshots)
866{
867	const struct cgit_snapshot_format* f;
868	char *prefix;
869    	char *filename;
870	unsigned char sha1[20];
871
872	if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
873	    (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
874		hex++;
875	prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
876	for (f = cgit_snapshot_formats; f->suffix; f++) {
877		if (!(snapshots & f->bit))
878			continue;
879		filename = fmt("%s%s", prefix, f->suffix);
880		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
881		html("<br/>");
882	}
883}