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ui-tree: link to plain view instead of blob view
[ps-cgit] / ui-shared.c
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
13 const 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
17 static 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", "Now", "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
30 void cgit_print_error(char *msg)
31 {
32         html("<div class='error'>");
33         html_txt(msg);
34         html("</div>\n");
35 }
36
37 char *cgit_rooturl()
38 {
39         if (ctx.cfg.virtual_root)
40                 return fmt("%s/", ctx.cfg.virtual_root);
41         else
42                 return ctx.cfg.script_name;
43 }
44
45 char *cgit_repourl(const char *reponame)
46 {
47         if (ctx.cfg.virtual_root) {
48                 return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
49         } else {
50                 return fmt("?r=%s", reponame);
51         }
52 }
53
54 char *cgit_fileurl(const char *reponame, const char *pagename,
55                    const char *filename, const char *query)
56 {
57         char *tmp;
58         char *delim;
59
60         if (ctx.cfg.virtual_root) {
61                 tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
62                           pagename, (filename ? filename:""));
63                 delim = "?";
64         } else {
65                 tmp = fmt("?url=%s/%s/%s", reponame, pagename,
66                           (filename ? filename : ""));
67                 delim = "&";
68         }
69         if (query)
70                 tmp = fmt("%s%s%s", tmp, delim, query);
71         return tmp;
72 }
73
74 char *cgit_pageurl(const char *reponame, const char *pagename,
75                    const char *query)
76 {
77         return cgit_fileurl(reponame,pagename,0,query);
78 }
79
80 const char *cgit_repobasename(const char *reponame)
81 {
82         /* I assume we don't need to store more than one repo basename */
83         static char rvbuf[1024];
84         int p;
85         const char *rv;
86         strncpy(rvbuf,reponame,sizeof(rvbuf));
87         if(rvbuf[sizeof(rvbuf)-1])
88                 die("cgit_repobasename: truncated repository name '%s'", reponame);
89         p = strlen(rvbuf)-1;
90         /* strip trailing slashes */
91         while(p && rvbuf[p]=='/') rvbuf[p--]=0;
92         /* strip trailing .git */
93         if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
94                 p -= 3; rvbuf[p--] = 0;
95         }
96         /* strip more trailing slashes if any */
97         while( p && rvbuf[p]=='/') rvbuf[p--]=0;
98         /* find last slash in the remaining string */
99         rv = strrchr(rvbuf,'/');
100         if(rv)
101                 return ++rv;
102         return rvbuf;
103 }
104
105 char *cgit_currurl()
106 {
107         if (!ctx.cfg.virtual_root)
108                 return ctx.cfg.script_name;
109         else if (ctx.qry.page)
110                 return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
111         else if (ctx.qry.repo)
112                 return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
113         else
114                 return fmt("%s/", ctx.cfg.virtual_root);
115 }
116
117 static void site_url(char *page, char *search, int ofs)
118 {
119         char *delim = "?";
120
121         if (ctx.cfg.virtual_root) {
122                 html_attr(ctx.cfg.virtual_root);
123                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
124                         html("/");
125         } else
126                 html(ctx.cfg.script_name);
127
128         if (page) {
129                 htmlf("?p=%s", page);
130                 delim = "&";
131         }
132         if (search) {
133                 html(delim);
134                 html("q=");
135                 html_attr(search);
136                 delim = "&";
137         }
138         if (ofs) {
139                 html(delim);
140                 htmlf("ofs=%d", ofs);
141         }
142 }
143
144 static void site_link(char *page, char *name, char *title, char *class,
145                       char *search, int ofs)
146 {
147         html("<a");
148         if (title) {
149                 html(" title='");
150                 html_attr(title);
151                 html("'");
152         }
153         if (class) {
154                 html(" class='");
155                 html_attr(class);
156                 html("'");
157         }
158         html(" href='");
159         site_url(page, search, ofs);
160         html("'>");
161         html_txt(name);
162         html("</a>");
163 }
164
165 void cgit_index_link(char *name, char *title, char *class, char *pattern,
166                      int ofs)
167 {
168         site_link(NULL, name, title, class, pattern, ofs);
169 }
170
171 static char *repolink(char *title, char *class, char *page, char *head,
172                       char *path)
173 {
174         char *delim = "?";
175
176         html("<a");
177         if (title) {
178                 html(" title='");
179                 html_attr(title);
180                 html("'");
181         }
182         if (class) {
183                 html(" class='");
184                 html_attr(class);
185                 html("'");
186         }
187         html(" href='");
188         if (ctx.cfg.virtual_root) {
189                 html_attr(ctx.cfg.virtual_root);
190                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
191                         html("/");
192                 html_attr(ctx.repo->url);
193                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
194                         html("/");
195                 if (page) {
196                         html(page);
197                         html("/");
198                         if (path)
199                                 html_attr(path);
200                 }
201         } else {
202                 html(ctx.cfg.script_name);
203                 html("?url=");
204                 html_attr(ctx.repo->url);
205                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
206                         html("/");
207                 if (page) {
208                         html(page);
209                         html("/");
210                         if (path)
211                                 html_attr(path);
212                 }
213                 delim = "&amp;";
214         }
215         if (head && strcmp(head, ctx.repo->defbranch)) {
216                 html(delim);
217                 html("h=");
218                 html_attr(head);
219                 delim = "&amp;";
220         }
221         return fmt("%s", delim);
222 }
223
224 static void reporevlink(char *page, char *name, char *title, char *class,
225                         char *head, char *rev, char *path)
226 {
227         char *delim;
228
229         delim = repolink(title, class, page, head, path);
230         if (rev && strcmp(rev, ctx.qry.head)) {
231                 html(delim);
232                 html("id=");
233                 html_attr(rev);
234         }
235         html("'>");
236         html_txt(name);
237         html("</a>");
238 }
239
240 void cgit_tree_link(char *name, char *title, char *class, char *head,
241                     char *rev, char *path)
242 {
243         reporevlink("tree", name, title, class, head, rev, path);
244 }
245
246 void cgit_plain_link(char *name, char *title, char *class, char *head,
247                      char *rev, char *path)
248 {
249         reporevlink("plain", name, title, class, head, rev, path);
250 }
251
252 void cgit_log_link(char *name, char *title, char *class, char *head,
253                    char *rev, char *path, int ofs, char *grep, char *pattern)
254 {
255         char *delim;
256
257         delim = repolink(title, class, "log", head, path);
258         if (rev && strcmp(rev, ctx.qry.head)) {
259                 html(delim);
260                 html("id=");
261                 html_attr(rev);
262                 delim = "&";
263         }
264         if (grep && pattern) {
265                 html(delim);
266                 html("qt=");
267                 html_attr(grep);
268                 delim = "&";
269                 html(delim);
270                 html("q=");
271                 html_attr(pattern);
272         }
273         if (ofs > 0) {
274                 html(delim);
275                 html("ofs=");
276                 htmlf("%d", ofs);
277         }
278         html("'>");
279         html_txt(name);
280         html("</a>");
281 }
282
283 void cgit_commit_link(char *name, char *title, char *class, char *head,
284                       char *rev)
285 {
286         if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
287                 name[ctx.cfg.max_msg_len] = '\0';
288                 name[ctx.cfg.max_msg_len - 1] = '.';
289                 name[ctx.cfg.max_msg_len - 2] = '.';
290                 name[ctx.cfg.max_msg_len - 3] = '.';
291         }
292         reporevlink("commit", name, title, class, head, rev, NULL);
293 }
294
295 void cgit_refs_link(char *name, char *title, char *class, char *head,
296                     char *rev, char *path)
297 {
298         reporevlink("refs", name, title, class, head, rev, path);
299 }
300
301 void cgit_snapshot_link(char *name, char *title, char *class, char *head,
302                         char *rev, char *archivename)
303 {
304         reporevlink("snapshot", name, title, class, head, rev, archivename);
305 }
306
307 void cgit_diff_link(char *name, char *title, char *class, char *head,
308                     char *new_rev, char *old_rev, char *path)
309 {
310         char *delim;
311
312         delim = repolink(title, class, "diff", head, path);
313         if (new_rev && strcmp(new_rev, ctx.qry.head)) {
314                 html(delim);
315                 html("id=");
316                 html_attr(new_rev);
317                 delim = "&amp;";
318         }
319         if (old_rev) {
320                 html(delim);
321                 html("id2=");
322                 html_attr(old_rev);
323         }
324         html("'>");
325         html_txt(name);
326         html("</a>");
327 }
328
329 void cgit_patch_link(char *name, char *title, char *class, char *head,
330                      char *rev)
331 {
332         reporevlink("patch", name, title, class, head, rev, NULL);
333 }
334
335 void cgit_object_link(struct object *obj)
336 {
337         char *page, *arg, *url;
338
339         if (obj->type == OBJ_COMMIT) {
340                 cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
341                                  ctx.qry.head, sha1_to_hex(obj->sha1));
342                 return;
343         } else if (obj->type == OBJ_TREE) {
344                 page = "tree";
345                 arg = "id";
346         } else if (obj->type == OBJ_TAG) {
347                 page = "tag";
348                 arg = "id";
349         } else {
350                 page = "blob";
351                 arg = "id";
352         }
353
354         url = cgit_pageurl(ctx.qry.repo, page,
355                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
356         html_link_open(url, NULL, NULL);
357         htmlf("%s %s", typename(obj->type),
358               sha1_to_hex(obj->sha1));
359         html_link_close();
360 }
361
362 void cgit_print_date(time_t secs, char *format, int local_time)
363 {
364         char buf[64];
365         struct tm *time;
366
367         if (!secs)
368                 return;
369         if(local_time)
370                 time = localtime(&secs);
371         else
372                 time = gmtime(&secs);
373         strftime(buf, sizeof(buf)-1, format, time);
374         html_txt(buf);
375 }
376
377 void cgit_print_age(time_t t, time_t max_relative, char *format)
378 {
379         time_t now, secs;
380
381         if (!t)
382                 return;
383         time(&now);
384         secs = now - t;
385
386         if (secs > max_relative && max_relative >= 0) {
387                 cgit_print_date(t, format, ctx.cfg.local_time);
388                 return;
389         }
390
391         if (secs < TM_HOUR * 2) {
392                 htmlf("<span class='age-mins'>%.0f min.</span>",
393                       secs * 1.0 / TM_MIN);
394                 return;
395         }
396         if (secs < TM_DAY * 2) {
397                 htmlf("<span class='age-hours'>%.0f hours</span>",
398                       secs * 1.0 / TM_HOUR);
399                 return;
400         }
401         if (secs < TM_WEEK * 2) {
402                 htmlf("<span class='age-days'>%.0f days</span>",
403                       secs * 1.0 / TM_DAY);
404                 return;
405         }
406         if (secs < TM_MONTH * 2) {
407                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
408                       secs * 1.0 / TM_WEEK);
409                 return;
410         }
411         if (secs < TM_YEAR * 2) {
412                 htmlf("<span class='age-months'>%.0f months</span>",
413                       secs * 1.0 / TM_MONTH);
414                 return;
415         }
416         htmlf("<span class='age-years'>%.0f years</span>",
417               secs * 1.0 / TM_YEAR);
418 }
419
420 void cgit_print_http_headers(struct cgit_context *ctx)
421 {
422         if (ctx->page.mimetype && ctx->page.charset)
423                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
424                       ctx->page.charset);
425         else if (ctx->page.mimetype)
426                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
427         if (ctx->page.size)
428                 htmlf("Content-Length: %ld\n", ctx->page.size);
429         if (ctx->page.filename)
430                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
431                       ctx->page.filename);
432         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
433         htmlf("Expires: %s\n", http_date(ctx->page.expires));
434         html("\n");
435 }
436
437 void cgit_print_docstart(struct cgit_context *ctx)
438 {
439         html(cgit_doctype);
440         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
441         html("<head>\n");
442         html("<title>");
443         html_txt(ctx->page.title);
444         html("</title>\n");
445         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
446         if (ctx->cfg.robots && *ctx->cfg.robots)
447                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
448         html("<link rel='stylesheet' type='text/css' href='");
449         html_attr(ctx->cfg.css);
450         html("'/>\n");
451         if (ctx->cfg.favicon) {
452                 html("<link rel='shortcut icon' href='");
453                 html_attr(ctx->cfg.favicon);
454                 html("'/>\n");
455         }
456         html("</head>\n");
457         html("<body>\n");
458 }
459
460 void cgit_print_docend()
461 {
462         html("</div>");
463         if (ctx.cfg.footer)
464                 html_include(ctx.cfg.footer);
465         else {
466                 html("<div class='footer'>generated ");
467                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
468                 htmlf(" by cgit %s", cgit_version);
469                 html("</div>\n");
470         }
471         html("</body>\n</html>\n");
472 }
473
474 int print_branch_option(const char *refname, const unsigned char *sha1,
475                         int flags, void *cb_data)
476 {
477         char *name = (char *)refname;
478         html_option(name, name, ctx.qry.head);
479         return 0;
480 }
481
482 int print_archive_ref(const char *refname, const unsigned char *sha1,
483                        int flags, void *cb_data)
484 {
485         struct tag *tag;
486         struct taginfo *info;
487         struct object *obj;
488         char buf[256], *url;
489         unsigned char fileid[20];
490         int *header = (int *)cb_data;
491
492         if (prefixcmp(refname, "refs/archives"))
493                 return 0;
494         strncpy(buf, refname+14, sizeof(buf));
495         obj = parse_object(sha1);
496         if (!obj)
497                 return 1;
498         if (obj->type == OBJ_TAG) {
499                 tag = lookup_tag(sha1);
500                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
501                         return 0;
502                 hashcpy(fileid, tag->tagged->sha1);
503         } else if (obj->type != OBJ_BLOB) {
504                 return 0;
505         } else {
506                 hashcpy(fileid, sha1);
507         }
508         if (!*header) {
509                 html("<h1>download</h1>\n");
510                 *header = 1;
511         }
512         url = cgit_pageurl(ctx.qry.repo, "blob",
513                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
514                                buf));
515         html_link_open(url, NULL, "menu");
516         html_txt(strlpart(buf, 20));
517         html_link_close();
518         return 0;
519 }
520
521 void add_hidden_formfields(int incl_head, int incl_search, char *page)
522 {
523         char *url;
524
525         if (!ctx.cfg.virtual_root) {
526                 url = fmt("%s/%s", ctx.qry.repo, page);
527                 if (ctx.qry.path)
528                         url = fmt("%s/%s", url, ctx.qry.path);
529                 html_hidden("url", url);
530         }
531
532         if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
533             strcmp(ctx.qry.head, ctx.repo->defbranch))
534                 html_hidden("h", ctx.qry.head);
535
536         if (ctx.qry.sha1)
537                 html_hidden("id", ctx.qry.sha1);
538         if (ctx.qry.sha2)
539                 html_hidden("id2", ctx.qry.sha2);
540
541         if (incl_search) {
542                 if (ctx.qry.grep)
543                         html_hidden("qt", ctx.qry.grep);
544                 if (ctx.qry.search)
545                         html_hidden("q", ctx.qry.search);
546         }
547 }
548
549 char *hc(struct cgit_cmd *cmd, const char *page)
550 {
551         return (strcmp(cmd->name, page) ? NULL : "active");
552 }
553
554 void cgit_print_pageheader(struct cgit_context *ctx)
555 {
556         struct cgit_cmd *cmd = cgit_get_cmd(ctx);
557
558         html("<table id='header'>\n");
559         html("<tr>\n");
560         html("<td class='logo' rowspan='2'><a href='");
561         if (ctx->cfg.logo_link)
562                 html_attr(ctx->cfg.logo_link);
563         else
564                 html_attr(cgit_rooturl());
565         html("'><img src='");
566         html_attr(ctx->cfg.logo);
567         html("' alt='cgit logo'/></a></td>\n");
568
569         html("<td class='main'>");
570         if (ctx->repo) {
571                 cgit_index_link("index", NULL, NULL, NULL, 0);
572                 html(" : ");
573                 reporevlink(NULL, ctx->repo->name, NULL, hc(cmd, "summary"),
574                             ctx->qry.head, NULL, NULL);
575                 html("</td><td class='form'>");
576                 html("<form method='get' action=''>\n");
577                 add_hidden_formfields(0, 1, ctx->qry.page);
578                 html("<select name='h' onchange='this.form.submit();'>\n");
579                 for_each_branch_ref(print_branch_option, ctx->qry.head);
580                 html("</select> ");
581                 html("<input type='submit' name='' value='switch'/>");
582                 html("</form>");
583         } else
584                 html_txt(ctx->cfg.root_title);
585         html("</td></tr>\n");
586
587         html("<tr><td class='sub'>");
588         if (ctx->repo) {
589                 html_txt(ctx->repo->desc);
590                 html("</td><td class='sub right'>");
591                 html_txt(ctx->repo->owner);
592         } else {
593                 if (ctx->cfg.root_desc)
594                         html_txt(ctx->cfg.root_desc);
595                 else if (ctx->cfg.index_info)
596                         html_include(ctx->cfg.index_info);
597         }
598         html("</td></tr></table>\n");
599
600         html("<table class='tabs'><tr><td>\n");
601         if (ctx->repo) {
602                 reporevlink(NULL, "summary", NULL, hc(cmd, "summary"),
603                             ctx->qry.head, NULL, NULL);
604                 cgit_refs_link("refs", NULL, hc(cmd, "refs"), ctx->qry.head,
605                                ctx->qry.sha1, NULL);
606                 cgit_log_link("log", NULL, hc(cmd, "log"), ctx->qry.head,
607                               NULL, NULL, 0, NULL, NULL);
608                 cgit_tree_link("tree", NULL, hc(cmd, "tree"), ctx->qry.head,
609                                ctx->qry.sha1, NULL);
610                 cgit_commit_link("commit", NULL, hc(cmd, "commit"),
611                                  ctx->qry.head, ctx->qry.sha1);
612                 cgit_diff_link("diff", NULL, hc(cmd, "diff"), ctx->qry.head,
613                                ctx->qry.sha1, ctx->qry.sha2, NULL);
614                 if (ctx->repo->readme)
615                         reporevlink("about", "about", NULL,
616                                     hc(cmd, "about"), ctx->qry.head, NULL,
617                                     NULL);
618                 html("</td><td class='form'>");
619                 html("<form class='right' method='get' action='");
620                 if (ctx->cfg.virtual_root)
621                         html_attr(cgit_fileurl(ctx->qry.repo, "log",
622                                                ctx->qry.path, NULL));
623                 html("'>\n");
624                 add_hidden_formfields(1, 0, "log");
625                 html("<select name='qt'>\n");
626                 html_option("grep", "log msg", ctx->qry.grep);
627                 html_option("author", "author", ctx->qry.grep);
628                 html_option("committer", "committer", ctx->qry.grep);
629                 html("</select>\n");
630                 html("<input class='txt' type='text' size='10' name='q' value='");
631                 html_attr(ctx->qry.search);
632                 html("'/>\n");
633                 html("<input type='submit' value='search'/>\n");
634                 html("</form>\n");
635         } else {
636                 site_link(NULL, "index", NULL, hc(cmd, "repolist"), NULL, 0);
637                 if (ctx->cfg.root_readme)
638                         site_link("about", "about", NULL, hc(cmd, "about"),
639                                   NULL, 0);
640                 html("</td><td class='form'>");
641                 html("<form method='get' action='");
642                 html_attr(cgit_rooturl());
643                 html("'>\n");
644                 html("<input type='text' name='q' size='10' value='");
645                 html_attr(ctx->qry.search);
646                 html("'/>\n");
647                 html("<input type='submit' value='search'/>\n");
648                 html("</form>");
649         }
650         html("</td></tr></table>\n");
651         html("<div class='content'>");
652 }
653
654 void cgit_print_filemode(unsigned short mode)
655 {
656         if (S_ISDIR(mode))
657                 html("d");
658         else if (S_ISLNK(mode))
659                 html("l");
660         else if (S_ISGITLINK(mode))
661                 html("m");
662         else
663                 html("-");
664         html_fileperm(mode >> 6);
665         html_fileperm(mode >> 3);
666         html_fileperm(mode);
667 }
668
669 void cgit_print_snapshot_links(const char *repo, const char *head,
670                                const char *hex, int snapshots)
671 {
672         const struct cgit_snapshot_format* f;
673         char *filename;
674
675         for (f = cgit_snapshot_formats; f->suffix; f++) {
676                 if (!(snapshots & f->bit))
677                         continue;
678                 filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
679                                f->suffix);
680                 cgit_snapshot_link(filename, NULL, NULL, (char *)head,
681                                    (char *)hex, filename);
682                 html("<br/>");
683         }
684 }