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 "html.h"
  11
  12 const char cgit_doctype[] =
  13 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
  14 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
  15
  16 static char *http_date(time_t t)
  17 {
  18         static char day[][4] =
  19                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
  20         static char month[][4] =
  21                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
  22                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
  23         struct tm *tm = gmtime(&t);
  24         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
  25                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
  26                    tm->tm_hour, tm->tm_min, tm->tm_sec);
  27 }
  28
  29 void cgit_print_error(char *msg)
  30 {
  31         html("<div class='error'>");
  32         html_txt(msg);
  33         html("</div>\n");
  34 }
  35
  36 char *cgit_rooturl()
  37 {
  38         if (ctx.cfg.virtual_root)
  39                 return fmt("%s/", ctx.cfg.virtual_root);
  40         else
  41                 return ctx.cfg.script_name;
  42 }
  43
  44 char *cgit_repourl(const char *reponame)
  45 {
  46         if (ctx.cfg.virtual_root) {
  47                 return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
  48         } else {
  49                 return fmt("?r=%s", reponame);
  50         }
  51 }
  52
  53 char *cgit_fileurl(const char *reponame, const char *pagename,
  54                    const char *filename, const char *query)
  55 {
  56         char *tmp;
  57         char *delim;
  58
  59         if (ctx.cfg.virtual_root) {
  60                 tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
  61                           pagename, (filename ? filename:""));
  62                 delim = "?";
  63         } else {
  64                 tmp = fmt("?url=%s/%s/%s", reponame, pagename,
  65                           (filename ? filename : ""));
  66                 delim = "&";
  67         }
  68         if (query)
  69                 tmp = fmt("%s%s%s", tmp, delim, query);
  70         return tmp;
  71 }
  72
  73 char *cgit_pageurl(const char *reponame, const char *pagename,
  74                    const char *query)
  75 {
  76         return cgit_fileurl(reponame,pagename,0,query);
  77 }
  78
  79 const char *cgit_repobasename(const char *reponame)
  80 {
  81         /* I assume we don't need to store more than one repo basename */
  82         static char rvbuf[1024];
  83         int p;
  84         const char *rv;
  85         strncpy(rvbuf,reponame,sizeof(rvbuf));
  86         if(rvbuf[sizeof(rvbuf)-1])
  87                 die("cgit_repobasename: truncated repository name '%s'", reponame);
  88         p = strlen(rvbuf)-1;
  89         /* strip trailing slashes */
  90         while(p && rvbuf[p]=='/') rvbuf[p--]=0;
  91         /* strip trailing .git */
  92         if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
  93                 p -= 3; rvbuf[p--] = 0;
  94         }
  95         /* strip more trailing slashes if any */
  96         while( p && rvbuf[p]=='/') rvbuf[p--]=0;
  97         /* find last slash in the remaining string */
  98         rv = strrchr(rvbuf,'/');
  99         if(rv)
 100                 return ++rv;
 101         return rvbuf;
 102 }
 103
 104 char *cgit_currurl()
 105 {
 106         if (!ctx.cfg.virtual_root)
 107                 return ctx.cfg.script_name;
 108         else if (ctx.qry.page)
 109                 return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
 110         else if (ctx.qry.repo)
 111                 return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
 112         else
 113                 return fmt("%s/", ctx.cfg.virtual_root);
 114 }
 115
 116 static char *repolink(char *title, char *class, char *page, char *head,
 117                       char *path)
 118 {
 119         char *delim = "?";
 120
 121         html("<a");
 122         if (title) {
 123                 html(" title='");
 124                 html_attr(title);
 125                 html("'");
 126         }
 127         if (class) {
 128                 html(" class='");
 129                 html_attr(class);
 130                 html("'");
 131         }
 132         html(" href='");
 133         if (ctx.cfg.virtual_root) {
 134                 html_attr(ctx.cfg.virtual_root);
 135                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
 136                         html("/");
 137                 html_attr(ctx.repo->url);
 138                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 139                         html("/");
 140                 if (page) {
 141                         html(page);
 142                         html("/");
 143                         if (path)
 144                                 html_attr(path);
 145                 }
 146         } else {
 147                 html(ctx.cfg.script_name);
 148                 html("?url=");
 149                 html_attr(ctx.repo->url);
 150                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 151                         html("/");
 152                 if (page) {
 153                         html(page);
 154                         html("/");
 155                         if (path)
 156                                 html_attr(path);
 157                 }
 158                 delim = "&amp;";
 159         }
 160         if (head && strcmp(head, ctx.repo->defbranch)) {
 161                 html(delim);
 162                 html("h=");
 163                 html_attr(head);
 164                 delim = "&amp;";
 165         }
 166         return fmt("%s", delim);
 167 }
 168
 169 static void reporevlink(char *page, char *name, char *title, char *class,
 170                         char *head, char *rev, char *path)
 171 {
 172         char *delim;
 173
 174         delim = repolink(title, class, page, head, path);
 175         if (rev && strcmp(rev, ctx.qry.head)) {
 176                 html(delim);
 177                 html("id=");
 178                 html_attr(rev);
 179         }
 180         html("'>");
 181         html_txt(name);
 182         html("</a>");
 183 }
 184
 185 void cgit_tree_link(char *name, char *title, char *class, char *head,
 186                     char *rev, char *path)
 187 {
 188         reporevlink("tree", name, title, class, head, rev, path);
 189 }
 190
 191 void cgit_log_link(char *name, char *title, char *class, char *head,
 192                    char *rev, char *path, int ofs, char *grep, char *pattern)
 193 {
 194         char *delim;
 195
 196         delim = repolink(title, class, "log", head, path);
 197         if (rev && strcmp(rev, ctx.qry.head)) {
 198                 html(delim);
 199                 html("id=");
 200                 html_attr(rev);
 201                 delim = "&";
 202         }
 203         if (grep && pattern) {
 204                 html(delim);
 205                 html("qt=");
 206                 html_attr(grep);
 207                 delim = "&";
 208                 html(delim);
 209                 html("q=");
 210                 html_attr(pattern);
 211         }
 212         if (ofs > 0) {
 213                 html(delim);
 214                 html("ofs=");
 215                 htmlf("%d", ofs);
 216         }
 217         html("'>");
 218         html_txt(name);
 219         html("</a>");
 220 }
 221
 222 void cgit_commit_link(char *name, char *title, char *class, char *head,
 223                       char *rev)
 224 {
 225         if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
 226                 name[ctx.cfg.max_msg_len] = '\0';
 227                 name[ctx.cfg.max_msg_len - 1] = '.';
 228                 name[ctx.cfg.max_msg_len - 2] = '.';
 229                 name[ctx.cfg.max_msg_len - 3] = '.';
 230         }
 231         reporevlink("commit", name, title, class, head, rev, NULL);
 232 }
 233
 234 void cgit_refs_link(char *name, char *title, char *class, char *head,
 235                     char *rev, char *path)
 236 {
 237         reporevlink("refs", name, title, class, head, rev, path);
 238 }
 239
 240 void cgit_snapshot_link(char *name, char *title, char *class, char *head,
 241                         char *rev, char *archivename)
 242 {
 243         reporevlink("snapshot", name, title, class, head, rev, archivename);
 244 }
 245
 246 void cgit_diff_link(char *name, char *title, char *class, char *head,
 247                     char *new_rev, char *old_rev, char *path)
 248 {
 249         char *delim;
 250
 251         delim = repolink(title, class, "diff", head, path);
 252         if (new_rev && strcmp(new_rev, ctx.qry.head)) {
 253                 html(delim);
 254                 html("id=");
 255                 html_attr(new_rev);
 256                 delim = "&amp;";
 257         }
 258         if (old_rev) {
 259                 html(delim);
 260                 html("id2=");
 261                 html_attr(old_rev);
 262         }
 263         html("'>");
 264         html_txt(name);
 265         html("</a>");
 266 }
 267
 268 void cgit_patch_link(char *name, char *title, char *class, char *head,
 269                      char *rev)
 270 {
 271         reporevlink("patch", name, title, class, head, rev, NULL);
 272 }
 273
 274 void cgit_object_link(struct object *obj)
 275 {
 276         char *page, *arg, *url;
 277
 278         if (obj->type == OBJ_COMMIT) {
 279                 cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
 280                                  ctx.qry.head, sha1_to_hex(obj->sha1));
 281                 return;
 282         } else if (obj->type == OBJ_TREE) {
 283                 page = "tree";
 284                 arg = "id";
 285         } else if (obj->type == OBJ_TAG) {
 286                 page = "tag";
 287                 arg = "id";
 288         } else {
 289                 page = "blob";
 290                 arg = "id";
 291         }
 292
 293         url = cgit_pageurl(ctx.qry.repo, page,
 294                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
 295         html_link_open(url, NULL, NULL);
 296         htmlf("%s %s", typename(obj->type),
 297               sha1_to_hex(obj->sha1));
 298         html_link_close();
 299 }
 300
 301 void cgit_print_date(time_t secs, char *format)
 302 {
 303         char buf[64];
 304         struct tm *time;
 305
 306         if (!secs)
 307                 return;
 308         time = gmtime(&secs);
 309         strftime(buf, sizeof(buf)-1, format, time);
 310         html_txt(buf);
 311 }
 312
 313 void cgit_print_age(time_t t, time_t max_relative, char *format)
 314 {
 315         time_t now, secs;
 316
 317         if (!t)
 318                 return;
 319         time(&now);
 320         secs = now - t;
 321
 322         if (secs > max_relative && max_relative >= 0) {
 323                 cgit_print_date(t, format);
 324                 return;
 325         }
 326
 327         if (secs < TM_HOUR * 2) {
 328                 htmlf("<span class='age-mins'>%.0f min.</span>",
 329                       secs * 1.0 / TM_MIN);
 330                 return;
 331         }
 332         if (secs < TM_DAY * 2) {
 333                 htmlf("<span class='age-hours'>%.0f hours</span>",
 334                       secs * 1.0 / TM_HOUR);
 335                 return;
 336         }
 337         if (secs < TM_WEEK * 2) {
 338                 htmlf("<span class='age-days'>%.0f days</span>",
 339                       secs * 1.0 / TM_DAY);
 340                 return;
 341         }
 342         if (secs < TM_MONTH * 2) {
 343                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 344                       secs * 1.0 / TM_WEEK);
 345                 return;
 346         }
 347         if (secs < TM_YEAR * 2) {
 348                 htmlf("<span class='age-months'>%.0f months</span>",
 349                       secs * 1.0 / TM_MONTH);
 350                 return;
 351         }
 352         htmlf("<span class='age-years'>%.0f years</span>",
 353               secs * 1.0 / TM_YEAR);
 354 }
 355
 356 void cgit_print_http_headers(struct cgit_context *ctx)
 357 {
 358         if (ctx->page.mimetype && ctx->page.charset)
 359                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
 360                       ctx->page.charset);
 361         else if (ctx->page.mimetype)
 362                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
 363         if (ctx->page.filename)
 364                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
 365                       ctx->page.filename);
 366         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
 367         htmlf("Expires: %s\n", http_date(ctx->page.expires));
 368         html("\n");
 369 }
 370
 371 void cgit_print_docstart(struct cgit_context *ctx)
 372 {
 373         html(cgit_doctype);
 374         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 375         html("<head>\n");
 376         html("<title>");
 377         html_txt(ctx->page.title);
 378         html("</title>\n");
 379         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 380         if (ctx->cfg.robots && *ctx->cfg.robots)
 381                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
 382         html("<link rel='stylesheet' type='text/css' href='");
 383         html_attr(ctx->cfg.css);
 384         html("'/>\n");
 385         html("</head>\n");
 386         html("<body>\n");
 387 }
 388
 389 void cgit_print_docend()
 390 {
 391         html("</td>\n</tr>\n</table>\n</body>\n</html>\n");
 392 }
 393
 394 int print_branch_option(const char *refname, const unsigned char *sha1,
 395                         int flags, void *cb_data)
 396 {
 397         char *name = (char *)refname;
 398         html_option(name, name, ctx.qry.head);
 399         return 0;
 400 }
 401
 402 int print_archive_ref(const char *refname, const unsigned char *sha1,
 403                        int flags, void *cb_data)
 404 {
 405         struct tag *tag;
 406         struct taginfo *info;
 407         struct object *obj;
 408         char buf[256], *url;
 409         unsigned char fileid[20];
 410         int *header = (int *)cb_data;
 411
 412         if (prefixcmp(refname, "refs/archives"))
 413                 return 0;
 414         strncpy(buf, refname+14, sizeof(buf));
 415         obj = parse_object(sha1);
 416         if (!obj)
 417                 return 1;
 418         if (obj->type == OBJ_TAG) {
 419                 tag = lookup_tag(sha1);
 420                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 421                         return 0;
 422                 hashcpy(fileid, tag->tagged->sha1);
 423         } else if (obj->type != OBJ_BLOB) {
 424                 return 0;
 425         } else {
 426                 hashcpy(fileid, sha1);
 427         }
 428         if (!*header) {
 429                 html("<h1>download</h1>\n");
 430                 *header = 1;
 431         }
 432         url = cgit_pageurl(ctx.qry.repo, "blob",
 433                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
 434                                buf));
 435         html_link_open(url, NULL, "menu");
 436         html_txt(strlpart(buf, 20));
 437         html_link_close();
 438         return 0;
 439 }
 440
 441 void add_hidden_formfields(int incl_head, int incl_search, char *page)
 442 {
 443         char *url;
 444
 445         if (!ctx.cfg.virtual_root) {
 446                 url = fmt("%s/%s", ctx.qry.repo, page);
 447                 if (ctx.qry.path)
 448                         url = fmt("%s/%s", url, ctx.qry.path);
 449                 html_hidden("url", url);
 450         }
 451
 452         if (incl_head && strcmp(ctx.qry.head, ctx.repo->defbranch))
 453                 html_hidden("h", ctx.qry.head);
 454
 455         if (ctx.qry.sha1)
 456                 html_hidden("id", ctx.qry.sha1);
 457         if (ctx.qry.sha2)
 458                 html_hidden("id2", ctx.qry.sha2);
 459
 460         if (incl_search) {
 461                 if (ctx.qry.grep)
 462                         html_hidden("qt", ctx.qry.grep);
 463                 if (ctx.qry.search)
 464                         html_hidden("q", ctx.qry.search);
 465         }
 466 }
 467
 468 void cgit_print_pageheader(struct cgit_context *ctx)
 469 {
 470         static const char *default_info = "This is cgit, a fast webinterface for git repositories";
 471         int header = 0;
 472         char *url;
 473
 474         html("<table id='layout' summary=''>\n");
 475         html("<tr><td id='sidebar'>\n");
 476         html("<table class='sidebar' cellspacing='0' summary=''>\n");
 477         html("<tr><td class='sidebar'>\n<a href='");
 478         html_attr(cgit_rooturl());
 479         htmlf("'><img src='%s' alt='cgit'/></a>\n",
 480               ctx->cfg.logo);
 481         html("</td></tr>\n<tr><td class='sidebar'>\n");
 482         if (ctx->repo) {
 483                 html("<h1 class='first'>");
 484                 html_txt(strrpart(ctx->repo->name, 20));
 485                 html("</h1>\n");
 486                 html_txt(ctx->repo->desc);
 487                 if (ctx->repo->owner) {
 488                         html("<h1>owner</h1>\n");
 489                         html_txt(ctx->repo->owner);
 490                 }
 491                 html("<h1>navigate</h1>\n");
 492                 reporevlink(NULL, "summary", NULL, "menu", ctx->qry.head,
 493                             NULL, NULL);
 494                 cgit_log_link("log", NULL, "menu", ctx->qry.head, NULL, NULL,
 495                               0, NULL, NULL);
 496                 cgit_tree_link("tree", NULL, "menu", ctx->qry.head,
 497                                ctx->qry.sha1, NULL);
 498                 cgit_commit_link("commit", NULL, "menu", ctx->qry.head,
 499                               ctx->qry.sha1);
 500                 cgit_diff_link("diff", NULL, "menu", ctx->qry.head,
 501                                ctx->qry.sha1, ctx->qry.sha2, NULL);
 502                 cgit_patch_link("patch", NULL, "menu", ctx->qry.head,
 503                                 ctx->qry.sha1);
 504
 505                 for_each_ref(print_archive_ref, &header);
 506
 507                 if (ctx->repo->clone_url || ctx->cfg.clone_prefix) {
 508                         html("<h1>clone</h1>\n");
 509                         if (ctx->repo->clone_url)
 510                                 url = ctx->repo->clone_url;
 511                         else
 512                                 url = fmt("%s%s", ctx->cfg.clone_prefix,
 513                                           ctx->repo->url);
 514                         html("<a class='menu' href='");
 515                         html_attr(url);
 516                         html("' title='");
 517                         html_attr(url);
 518                         html("'>\n");
 519                         html_txt(strrpart(url, 20));
 520                         html("</a>\n");
 521                 }
 522
 523                 html("<h1>branch</h1>\n");
 524                 html("<form method='get' action=''>\n");
 525                 add_hidden_formfields(0, 1, ctx->qry.page);
 526 //              html("<table summary='branch selector' class='grid'><tr><td id='branch-dropdown-cell'>");
 527                 html("<select name='h' onchange='this.form.submit();'>\n");
 528                 for_each_branch_ref(print_branch_option, ctx->qry.head);
 529                 html("</select>\n");
 530 //              html("</td><td>");
 531                 html("<noscript><input type='submit' id='switch-btn' value='switch'/></noscript>\n");
 532 //              html("</td></tr></table>");
 533                 html("</form>\n");
 534
 535                 html("<h1>search</h1>\n");
 536                 html("<form method='get' action='");
 537                 if (ctx->cfg.virtual_root)
 538                         html_attr(cgit_fileurl(ctx->qry.repo, "log",
 539                                                ctx->qry.path, NULL));
 540                 html("'>\n");
 541                 add_hidden_formfields(1, 0, "log");
 542                 html("<select name='qt'>\n");
 543                 html_option("grep", "log msg", ctx->qry.grep);
 544                 html_option("author", "author", ctx->qry.grep);
 545                 html_option("committer", "committer", ctx->qry.grep);
 546                 html("</select>\n");
 547                 html("<input class='txt' type='text' name='q' value='");
 548                 html_attr(ctx->qry.search);
 549                 html("'/>\n");
 550                 html("</form>\n");
 551         } else {
 552                 if (!ctx->cfg.index_info || html_include(ctx->cfg.index_info))
 553                         html(default_info);
 554         }
 555
 556         html("</td></tr></table></td>\n");
 557
 558         html("<td id='content'>\n");
 559 }
 560
 561 void cgit_print_filemode(unsigned short mode)
 562 {
 563         if (S_ISDIR(mode))
 564                 html("d");
 565         else if (S_ISLNK(mode))
 566                 html("l");
 567         else if (S_ISGITLINK(mode))
 568                 html("m");
 569         else
 570                 html("-");
 571         html_fileperm(mode >> 6);
 572         html_fileperm(mode >> 3);
 573         html_fileperm(mode);
 574 }
 575
 576 void cgit_print_snapshot_links(const char *repo, const char *head,
 577                                const char *hex, int snapshots)
 578 {
 579         const struct cgit_snapshot_format* f;
 580         char *filename;
 581
 582         for (f = cgit_snapshot_formats; f->suffix; f++) {
 583                 if (!(snapshots & f->bit))
 584                         continue;
 585                 filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
 586                                f->suffix);
 587                 cgit_snapshot_link(filename, NULL, NULL, (char *)head,
 588                                    (char *)hex, filename);
 589                 html("<br/>");
 590         }
 591 }