gitweb.ps.run Git - ps-cgit/blob - 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", "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
  30 void cgit_print_error(const char *msg)
  31 {
  32         html("<div class='error'>");
  33         html_txt(msg);
  34         html("</div>\n");
  35 }
  36
  37 char *cgit_httpscheme()
  38 {
  39         if (ctx.env.https && !strcmp(ctx.env.https, "on"))
  40                 return "https://";
  41         else
  42                 return "http://";
  43 }
  44
  45 char *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
  56 char *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
  64 char *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
  73 char *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 = "&amp;";
  87         }
  88         if (query)
  89                 tmp = fmt("%s%s%s", tmp, delim, query);
  90         return tmp;
  91 }
  92
  93 char *cgit_pageurl(const char *reponame, const char *pagename,
  94                    const char *query)
  95 {
  96         return cgit_fileurl(reponame,pagename,0,query);
  97 }
  98
  99 const 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
 124 char *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
 136 static void site_url(const char *page, const char *search, const char *sort, 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 = "&amp;";
 150         }
 151         if (search) {
 152                 html(delim);
 153                 html("q=");
 154                 html_attr(search);
 155                 delim = "&amp;";
 156         }
 157         if (sort) {
 158                 html(delim);
 159                 html("s=");
 160                 html_attr(sort);
 161                 delim = "&amp;";
 162         }
 163         if (ofs) {
 164                 html(delim);
 165                 htmlf("ofs=%d", ofs);
 166         }
 167 }
 168
 169 static void site_link(const char *page, const char *name, const char *title,
 170                       const char *class, const char *search, const char *sort, int ofs)
 171 {
 172         html("<a");
 173         if (title) {
 174                 html(" title='");
 175                 html_attr(title);
 176                 html("'");
 177         }
 178         if (class) {
 179                 html(" class='");
 180                 html_attr(class);
 181                 html("'");
 182         }
 183         html(" href='");
 184         site_url(page, search, sort, ofs);
 185         html("'>");
 186         html_txt(name);
 187         html("</a>");
 188 }
 189
 190 void cgit_index_link(const char *name, const char *title, const char *class,
 191                      const char *pattern, const char *sort, int ofs)
 192 {
 193         site_link(NULL, name, title, class, pattern, sort, ofs);
 194 }
 195
 196 static char *repolink(const char *title, const char *class, const char *page,
 197                       const char *head, const char *path)
 198 {
 199         char *delim = "?";
 200
 201         html("<a");
 202         if (title) {
 203                 html(" title='");
 204                 html_attr(title);
 205                 html("'");
 206         }
 207         if (class) {
 208                 html(" class='");
 209                 html_attr(class);
 210                 html("'");
 211         }
 212         html(" href='");
 213         if (ctx.cfg.virtual_root) {
 214                 html_url_path(ctx.cfg.virtual_root);
 215                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
 216                         html("/");
 217                 html_url_path(ctx.repo->url);
 218                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 219                         html("/");
 220                 if (page) {
 221                         html_url_path(page);
 222                         html("/");
 223                         if (path)
 224                                 html_url_path(path);
 225                 }
 226         } else {
 227                 html(ctx.cfg.script_name);
 228                 html("?url=");
 229                 html_url_arg(ctx.repo->url);
 230                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 231                         html("/");
 232                 if (page) {
 233                         html_url_arg(page);
 234                         html("/");
 235                         if (path)
 236                                 html_url_arg(path);
 237                 }
 238                 delim = "&amp;";
 239         }
 240         if (head && strcmp(head, ctx.repo->defbranch)) {
 241                 html(delim);
 242                 html("h=");
 243                 html_url_arg(head);
 244                 delim = "&amp;";
 245         }
 246         return fmt("%s", delim);
 247 }
 248
 249 static void reporevlink(const char *page, const char *name, const char *title,
 250                         const char *class, const char *head, const char *rev,
 251                         const char *path)
 252 {
 253         char *delim;
 254
 255         delim = repolink(title, class, page, head, path);
 256         if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
 257                 html(delim);
 258                 html("id=");
 259                 html_url_arg(rev);
 260         }
 261         html("'>");
 262         html_txt(name);
 263         html("</a>");
 264 }
 265
 266 void cgit_summary_link(const char *name, const char *title, const char *class,
 267                        const char *head)
 268 {
 269         reporevlink(NULL, name, title, class, head, NULL, NULL);
 270 }
 271
 272 void cgit_tag_link(const char *name, const char *title, const char *class,
 273                    const char *head, const char *rev)
 274 {
 275         reporevlink("tag", name, title, class, head, rev, NULL);
 276 }
 277
 278 void cgit_tree_link(const char *name, const char *title, const char *class,
 279                     const char *head, const char *rev, const char *path)
 280 {
 281         reporevlink("tree", name, title, class, head, rev, path);
 282 }
 283
 284 void cgit_plain_link(const char *name, const char *title, const char *class,
 285                      const char *head, const char *rev, const char *path)
 286 {
 287         reporevlink("plain", name, title, class, head, rev, path);
 288 }
 289
 290 void cgit_log_link(const char *name, const char *title, const char *class,
 291                    const char *head, const char *rev, const char *path,
 292                    int ofs, const char *grep, const char *pattern, int showmsg)
 293 {
 294         char *delim;
 295
 296         delim = repolink(title, class, "log", head, path);
 297         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 298                 html(delim);
 299                 html("id=");
 300                 html_url_arg(rev);
 301                 delim = "&amp;";
 302         }
 303         if (grep && pattern) {
 304                 html(delim);
 305                 html("qt=");
 306                 html_url_arg(grep);
 307                 delim = "&amp;";
 308                 html(delim);
 309                 html("q=");
 310                 html_url_arg(pattern);
 311         }
 312         if (ofs > 0) {
 313                 html(delim);
 314                 html("ofs=");
 315                 htmlf("%d", ofs);
 316                 delim = "&amp;";
 317         }
 318         if (showmsg) {
 319                 html(delim);
 320                 html("showmsg=1");
 321         }
 322         html("'>");
 323         html_txt(name);
 324         html("</a>");
 325 }
 326
 327 void cgit_commit_link(char *name, const char *title, const char *class,
 328                       const char *head, const char *rev, const char *path,
 329                       int toggle_ssdiff)
 330 {
 331         if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
 332                 name[ctx.cfg.max_msg_len] = '\0';
 333                 name[ctx.cfg.max_msg_len - 1] = '.';
 334                 name[ctx.cfg.max_msg_len - 2] = '.';
 335                 name[ctx.cfg.max_msg_len - 3] = '.';
 336         }
 337
 338         char *delim;
 339
 340         delim = repolink(title, class, "commit", head, path);
 341         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 342                 html(delim);
 343                 html("id=");
 344                 html_url_arg(rev);
 345                 delim = "&amp;";
 346         }
 347         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 348                 html(delim);
 349                 html("ss=1");
 350                 delim = "&amp;";
 351         }
 352         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 353                 html(delim);
 354                 html("context=");
 355                 htmlf("%d", ctx.qry.context);
 356                 delim = "&amp;";
 357         }
 358         if (ctx.qry.ignorews) {
 359                 html(delim);
 360                 html("ignorews=1");
 361                 delim = "&amp;";
 362         }
 363         html("'>");
 364         if (name[0] != '\0')
 365                 html_txt(name);
 366         else
 367                 html_txt("(no commit message)");
 368         html("</a>");
 369 }
 370
 371 void cgit_refs_link(const char *name, const char *title, const char *class,
 372                     const char *head, const char *rev, const char *path)
 373 {
 374         reporevlink("refs", name, title, class, head, rev, path);
 375 }
 376
 377 void cgit_snapshot_link(const char *name, const char *title, const char *class,
 378                         const char *head, const char *rev,
 379                         const char *archivename)
 380 {
 381         reporevlink("snapshot", name, title, class, head, rev, archivename);
 382 }
 383
 384 void cgit_diff_link(const char *name, const char *title, const char *class,
 385                     const char *head, const char *new_rev, const char *old_rev,
 386                     const char *path, int toggle_ssdiff)
 387 {
 388         char *delim;
 389
 390         delim = repolink(title, class, "diff", head, path);
 391         if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
 392                 html(delim);
 393                 html("id=");
 394                 html_url_arg(new_rev);
 395                 delim = "&amp;";
 396         }
 397         if (old_rev) {
 398                 html(delim);
 399                 html("id2=");
 400                 html_url_arg(old_rev);
 401                 delim = "&amp;";
 402         }
 403         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 404                 html(delim);
 405                 html("ss=1");
 406                 delim = "&amp;";
 407         }
 408         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 409                 html(delim);
 410                 html("context=");
 411                 htmlf("%d", ctx.qry.context);
 412                 delim = "&amp;";
 413         }
 414         if (ctx.qry.ignorews) {
 415                 html(delim);
 416                 html("ignorews=1");
 417                 delim = "&amp;";
 418         }
 419         html("'>");
 420         html_txt(name);
 421         html("</a>");
 422 }
 423
 424 void cgit_patch_link(const char *name, const char *title, const char *class,
 425                      const char *head, const char *rev, const char *path)
 426 {
 427         reporevlink("patch", name, title, class, head, rev, path);
 428 }
 429
 430 void cgit_stats_link(const char *name, const char *title, const char *class,
 431                      const char *head, const char *path)
 432 {
 433         reporevlink("stats", name, title, class, head, NULL, path);
 434 }
 435
 436 void cgit_self_link(char *name, const char *title, const char *class,
 437                     struct cgit_context *ctx)
 438 {
 439         if (!strcmp(ctx->qry.page, "repolist"))
 440                 return cgit_index_link(name, title, class, ctx->qry.search, ctx->qry.sort,
 441                                        ctx->qry.ofs);
 442         else if (!strcmp(ctx->qry.page, "summary"))
 443                 return cgit_summary_link(name, title, class, ctx->qry.head);
 444         else if (!strcmp(ctx->qry.page, "tag"))
 445                 return cgit_tag_link(name, title, class, ctx->qry.head,
 446                                      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
 447         else if (!strcmp(ctx->qry.page, "tree"))
 448                 return cgit_tree_link(name, title, class, ctx->qry.head,
 449                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 450                                       ctx->qry.path);
 451         else if (!strcmp(ctx->qry.page, "plain"))
 452                 return cgit_plain_link(name, title, class, ctx->qry.head,
 453                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 454                                       ctx->qry.path);
 455         else if (!strcmp(ctx->qry.page, "log"))
 456                 return cgit_log_link(name, title, class, ctx->qry.head,
 457                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 458                                       ctx->qry.path, ctx->qry.ofs,
 459                                       ctx->qry.grep, ctx->qry.search,
 460                                       ctx->qry.showmsg);
 461         else if (!strcmp(ctx->qry.page, "commit"))
 462                 return cgit_commit_link(name, title, class, ctx->qry.head,
 463                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 464                                       ctx->qry.path, 0);
 465         else if (!strcmp(ctx->qry.page, "patch"))
 466                 return cgit_patch_link(name, title, class, ctx->qry.head,
 467                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 468                                       ctx->qry.path);
 469         else if (!strcmp(ctx->qry.page, "refs"))
 470                 return cgit_refs_link(name, title, class, ctx->qry.head,
 471                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 472                                       ctx->qry.path);
 473         else if (!strcmp(ctx->qry.page, "snapshot"))
 474                 return cgit_snapshot_link(name, title, class, ctx->qry.head,
 475                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 476                                       ctx->qry.path);
 477         else if (!strcmp(ctx->qry.page, "diff"))
 478                 return cgit_diff_link(name, title, class, ctx->qry.head,
 479                                       ctx->qry.sha1, ctx->qry.sha2,
 480                                       ctx->qry.path, 0);
 481         else if (!strcmp(ctx->qry.page, "stats"))
 482                 return cgit_stats_link(name, title, class, ctx->qry.head,
 483                                       ctx->qry.path);
 484
 485         /* Don't known how to make link for this page */
 486         repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
 487         html("><!-- cgit_self_link() doesn't know how to make link for page '");
 488         html_txt(ctx->qry.page);
 489         html("' -->");
 490         html_txt(name);
 491         html("</a>");
 492 }
 493
 494 void cgit_object_link(struct object *obj)
 495 {
 496         char *page, *shortrev, *fullrev, *name;
 497
 498         fullrev = sha1_to_hex(obj->sha1);
 499         shortrev = xstrdup(fullrev);
 500         shortrev[10] = '\0';
 501         if (obj->type == OBJ_COMMIT) {
 502                 cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
 503                                  ctx.qry.head, fullrev, NULL, 0);
 504                 return;
 505         } else if (obj->type == OBJ_TREE)
 506                 page = "tree";
 507         else if (obj->type == OBJ_TAG)
 508                 page = "tag";
 509         else
 510                 page = "blob";
 511         name = fmt("%s %s...", typename(obj->type), shortrev);
 512         reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 513 }
 514
 515 struct string_list_item *lookup_path(struct string_list *list,
 516                                      const char *path)
 517 {
 518         struct string_list_item *item;
 519
 520         while (path && path[0]) {
 521                 if ((item = string_list_lookup(list, path)))
 522                         return item;
 523                 if (!(path = strchr(path, '/')))
 524                         break;
 525                 path++;
 526         }
 527         return NULL;
 528 }
 529
 530 void cgit_submodule_link(const char *class, char *path, const char *rev)
 531 {
 532         struct string_list *list;
 533         struct string_list_item *item;
 534         char tail, *dir;
 535         size_t len;
 536
 537         tail = 0;
 538         list = &ctx.repo->submodules;
 539         item = lookup_path(list, path);
 540         if (!item) {
 541                 len = strlen(path);
 542                 tail = path[len - 1];
 543                 if (tail == '/') {
 544                         path[len - 1] = 0;
 545                         item = lookup_path(list, path);
 546                 }
 547         }
 548         html("<a ");
 549         if (class)
 550                 htmlf("class='%s' ", class);
 551         html("href='");
 552         if (item) {
 553                 html_attr(fmt(item->util, rev));
 554         } else if (ctx.repo->module_link) {
 555                 dir = strrchr(path, '/');
 556                 if (dir)
 557                         dir++;
 558                 else
 559                         dir = path;
 560                 html_attr(fmt(ctx.repo->module_link, dir, rev));
 561         } else {
 562                 html("#");
 563         }
 564         html("'>");
 565         html_txt(path);
 566         html("</a>");
 567         if (item && tail)
 568                 path[len - 1] = tail;
 569 }
 570
 571 void cgit_print_date(time_t secs, const char *format, int local_time)
 572 {
 573         char buf[64];
 574         struct tm *time;
 575
 576         if (!secs)
 577                 return;
 578         if(local_time)
 579                 time = localtime(&secs);
 580         else
 581                 time = gmtime(&secs);
 582         strftime(buf, sizeof(buf)-1, format, time);
 583         html_txt(buf);
 584 }
 585
 586 void cgit_print_age(time_t t, time_t max_relative, const char *format)
 587 {
 588         time_t now, secs;
 589
 590         if (!t)
 591                 return;
 592         time(&now);
 593         secs = now - t;
 594
 595         if (secs > max_relative && max_relative >= 0) {
 596                 cgit_print_date(t, format, ctx.cfg.local_time);
 597                 return;
 598         }
 599
 600         if (secs < TM_HOUR * 2) {
 601                 htmlf("<span class='age-mins'>%.0f min.</span>",
 602                       secs * 1.0 / TM_MIN);
 603                 return;
 604         }
 605         if (secs < TM_DAY * 2) {
 606                 htmlf("<span class='age-hours'>%.0f hours</span>",
 607                       secs * 1.0 / TM_HOUR);
 608                 return;
 609         }
 610         if (secs < TM_WEEK * 2) {
 611                 htmlf("<span class='age-days'>%.0f days</span>",
 612                       secs * 1.0 / TM_DAY);
 613                 return;
 614         }
 615         if (secs < TM_MONTH * 2) {
 616                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 617                       secs * 1.0 / TM_WEEK);
 618                 return;
 619         }
 620         if (secs < TM_YEAR * 2) {
 621                 htmlf("<span class='age-months'>%.0f months</span>",
 622                       secs * 1.0 / TM_MONTH);
 623                 return;
 624         }
 625         htmlf("<span class='age-years'>%.0f years</span>",
 626               secs * 1.0 / TM_YEAR);
 627 }
 628
 629 void cgit_print_http_headers(struct cgit_context *ctx)
 630 {
 631         if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
 632                 return;
 633
 634         if (ctx->page.status)
 635                 htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
 636         if (ctx->page.mimetype && ctx->page.charset)
 637                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
 638                       ctx->page.charset);
 639         else if (ctx->page.mimetype)
 640                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
 641         if (ctx->page.size)
 642                 htmlf("Content-Length: %zd\n", ctx->page.size);
 643         if (ctx->page.filename)
 644                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
 645                       ctx->page.filename);
 646         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
 647         htmlf("Expires: %s\n", http_date(ctx->page.expires));
 648         if (ctx->page.etag)
 649                 htmlf("ETag: \"%s\"\n", ctx->page.etag);
 650         html("\n");
 651         if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
 652                 exit(0);
 653 }
 654
 655 void cgit_print_docstart(struct cgit_context *ctx)
 656 {
 657         if (ctx->cfg.embedded) {
 658                 if (ctx->cfg.header)
 659                         html_include(ctx->cfg.header);
 660                 return;
 661         }
 662
 663         char *host = cgit_hosturl();
 664         html(cgit_doctype);
 665         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 666         html("<head>\n");
 667         html("<title>");
 668         html_txt(ctx->page.title);
 669         html("</title>\n");
 670         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 671         if (ctx->cfg.robots && *ctx->cfg.robots)
 672                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
 673         html("<link rel='stylesheet' type='text/css' href='");
 674         html_attr(ctx->cfg.css);
 675         html("'/>\n");
 676         if (ctx->cfg.favicon) {
 677                 html("<link rel='shortcut icon' href='");
 678                 html_attr(ctx->cfg.favicon);
 679                 html("'/>\n");
 680         }
 681         if (host && ctx->repo && ctx->qry.head) {
 682                 html("<link rel='alternate' title='Atom feed' href='");
 683                 html(cgit_httpscheme());
 684                 html_attr(cgit_hosturl());
 685                 html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
 686                                        fmt("h=%s", ctx->qry.head)));
 687                 html("' type='application/atom+xml'/>\n");
 688         }
 689         if (ctx->cfg.head_include)
 690                 html_include(ctx->cfg.head_include);
 691         html("</head>\n");
 692         html("<body>\n");
 693         if (ctx->cfg.header)
 694                 html_include(ctx->cfg.header);
 695 }
 696
 697 void cgit_print_docend()
 698 {
 699         html("</div> <!-- class=content -->\n");
 700         if (ctx.cfg.embedded) {
 701                 html("</div> <!-- id=cgit -->\n");
 702                 if (ctx.cfg.footer)
 703                         html_include(ctx.cfg.footer);
 704                 return;
 705         }
 706         if (ctx.cfg.footer)
 707                 html_include(ctx.cfg.footer);
 708         else {
 709                 htmlf("<div class='footer'>generated  by cgit %s at ",
 710                         cgit_version);
 711                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
 712                 html("</div>\n");
 713         }
 714         html("</div> <!-- id=cgit -->\n");
 715         html("</body>\n</html>\n");
 716 }
 717
 718 int print_branch_option(const char *refname, const unsigned char *sha1,
 719                         int flags, void *cb_data)
 720 {
 721         char *name = (char *)refname;
 722         html_option(name, name, ctx.qry.head);
 723         return 0;
 724 }
 725
 726 int print_archive_ref(const char *refname, const unsigned char *sha1,
 727                        int flags, void *cb_data)
 728 {
 729         struct tag *tag;
 730         struct taginfo *info;
 731         struct object *obj;
 732         char buf[256], *url;
 733         unsigned char fileid[20];
 734         int *header = (int *)cb_data;
 735
 736         if (prefixcmp(refname, "refs/archives"))
 737                 return 0;
 738         strncpy(buf, refname+14, sizeof(buf));
 739         obj = parse_object(sha1);
 740         if (!obj)
 741                 return 1;
 742         if (obj->type == OBJ_TAG) {
 743                 tag = lookup_tag(sha1);
 744                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 745                         return 0;
 746                 hashcpy(fileid, tag->tagged->sha1);
 747         } else if (obj->type != OBJ_BLOB) {
 748                 return 0;
 749         } else {
 750                 hashcpy(fileid, sha1);
 751         }
 752         if (!*header) {
 753                 html("<h1>download</h1>\n");
 754                 *header = 1;
 755         }
 756         url = cgit_pageurl(ctx.qry.repo, "blob",
 757                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
 758                                buf));
 759         html_link_open(url, NULL, "menu");
 760         html_txt(strlpart(buf, 20));
 761         html_link_close();
 762         return 0;
 763 }
 764
 765 void cgit_add_hidden_formfields(int incl_head, int incl_search,
 766                                 const char *page)
 767 {
 768         char *url;
 769
 770         if (!ctx.cfg.virtual_root) {
 771                 url = fmt("%s/%s", ctx.qry.repo, page);
 772                 if (ctx.qry.vpath)
 773                         url = fmt("%s/%s", url, ctx.qry.vpath);
 774                 html_hidden("url", url);
 775         }
 776
 777         if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
 778             strcmp(ctx.qry.head, ctx.repo->defbranch))
 779                 html_hidden("h", ctx.qry.head);
 780
 781         if (ctx.qry.sha1)
 782                 html_hidden("id", ctx.qry.sha1);
 783         if (ctx.qry.sha2)
 784                 html_hidden("id2", ctx.qry.sha2);
 785         if (ctx.qry.showmsg)
 786                 html_hidden("showmsg", "1");
 787
 788         if (incl_search) {
 789                 if (ctx.qry.grep)
 790                         html_hidden("qt", ctx.qry.grep);
 791                 if (ctx.qry.search)
 792                         html_hidden("q", ctx.qry.search);
 793         }
 794 }
 795
 796 static const char *hc(struct cgit_context *ctx, const char *page)
 797 {
 798         return strcmp(ctx->qry.page, page) ? NULL : "active";
 799 }
 800
 801 static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
 802 {
 803         char *old_path = ctx->qry.path;
 804         char *p = path, *q, *end = path + strlen(path);
 805
 806         ctx->qry.path = NULL;
 807         cgit_self_link("root", NULL, NULL, ctx);
 808         ctx->qry.path = p = path;
 809         while (p < end) {
 810                 if (!(q = strchr(p, '/')))
 811                         q = end;
 812                 *q = '\0';
 813                 html_txt("/");
 814                 cgit_self_link(p, NULL, NULL, ctx);
 815                 if (q < end)
 816                         *q = '/';
 817                 p = q + 1;
 818         }
 819         ctx->qry.path = old_path;
 820 }
 821
 822 static void print_header(struct cgit_context *ctx)
 823 {
 824         char *logo = NULL, *logo_link = NULL;
 825
 826         html("<table id='header'>\n");
 827         html("<tr>\n");
 828
 829         if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
 830                 logo = ctx->repo->logo;
 831         else
 832                 logo = ctx->cfg.logo;
 833         if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
 834                 logo_link = ctx->repo->logo_link;
 835         else
 836                 logo_link = ctx->cfg.logo_link;
 837         if (logo && *logo) {
 838                 html("<td class='logo' rowspan='2'><a href='");
 839                 if (logo_link && *logo_link)
 840                         html_attr(logo_link);
 841                 else
 842                         html_attr(cgit_rooturl());
 843                 html("'><img src='");
 844                 html_attr(logo);
 845                 html("' alt='cgit logo'/></a></td>\n");
 846         }
 847
 848         html("<td class='main'>");
 849         if (ctx->repo) {
 850                 cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 851                 html(" : ");
 852                 cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
 853                 html("</td><td class='form'>");
 854                 html("<form method='get' action=''>\n");
 855                 cgit_add_hidden_formfields(0, 1, ctx->qry.page);
 856                 html("<select name='h' onchange='this.form.submit();'>\n");
 857                 for_each_branch_ref(print_branch_option, ctx->qry.head);
 858                 html("</select> ");
 859                 html("<input type='submit' name='' value='switch'/>");
 860                 html("</form>");
 861         } else
 862                 html_txt(ctx->cfg.root_title);
 863         html("</td></tr>\n");
 864
 865         html("<tr><td class='sub'>");
 866         if (ctx->repo) {
 867                 html_txt(ctx->repo->desc);
 868                 html("</td><td class='sub right'>");
 869                 html_txt(ctx->repo->owner);
 870         } else {
 871                 if (ctx->cfg.root_desc)
 872                         html_txt(ctx->cfg.root_desc);
 873                 else if (ctx->cfg.index_info)
 874                         html_include(ctx->cfg.index_info);
 875         }
 876         html("</td></tr></table>\n");
 877 }
 878
 879 void cgit_print_pageheader(struct cgit_context *ctx)
 880 {
 881         html("<div id='cgit'>");
 882         if (!ctx->cfg.noheader)
 883                 print_header(ctx);
 884
 885         html("<table class='tabs'><tr><td>\n");
 886         if (ctx->repo) {
 887                 cgit_summary_link("summary", NULL, hc(ctx, "summary"),
 888                                   ctx->qry.head);
 889                 cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
 890                                ctx->qry.sha1, NULL);
 891                 cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
 892                               NULL, ctx->qry.vpath, 0, NULL, NULL,
 893                               ctx->qry.showmsg);
 894                 cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
 895                                ctx->qry.sha1, ctx->qry.vpath);
 896                 cgit_commit_link("commit", NULL, hc(ctx, "commit"),
 897                                  ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
 898                 cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
 899                                ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
 900                 if (ctx->repo->max_stats)
 901                         cgit_stats_link("stats", NULL, hc(ctx, "stats"),
 902                                         ctx->qry.head, ctx->qry.vpath);
 903                 if (ctx->repo->readme)
 904                         reporevlink("about", "about", NULL,
 905                                     hc(ctx, "about"), ctx->qry.head, NULL,
 906                                     NULL);
 907                 html("</td><td class='form'>");
 908                 html("<form class='right' method='get' action='");
 909                 if (ctx->cfg.virtual_root)
 910                         html_url_path(cgit_fileurl(ctx->qry.repo, "log",
 911                                                    ctx->qry.vpath, NULL));
 912                 html("'>\n");
 913                 cgit_add_hidden_formfields(1, 0, "log");
 914                 html("<select name='qt'>\n");
 915                 html_option("grep", "log msg", ctx->qry.grep);
 916                 html_option("author", "author", ctx->qry.grep);
 917                 html_option("committer", "committer", ctx->qry.grep);
 918                 html_option("range", "range", ctx->qry.grep);
 919                 html("</select>\n");
 920                 html("<input class='txt' type='text' size='10' name='q' value='");
 921                 html_attr(ctx->qry.search);
 922                 html("'/>\n");
 923                 html("<input type='submit' value='search'/>\n");
 924                 html("</form>\n");
 925         } else {
 926                 site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
 927                 if (ctx->cfg.root_readme)
 928                         site_link("about", "about", NULL, hc(ctx, "about"),
 929                                   NULL, NULL, 0);
 930                 html("</td><td class='form'>");
 931                 html("<form method='get' action='");
 932                 html_attr(cgit_rooturl());
 933                 html("'>\n");
 934                 html("<input type='text' name='q' size='10' value='");
 935                 html_attr(ctx->qry.search);
 936                 html("'/>\n");
 937                 html("<input type='submit' value='search'/>\n");
 938                 html("</form>");
 939         }
 940         html("</td></tr></table>\n");
 941         if (ctx->qry.vpath) {
 942                 html("<div class='path'>");
 943                 html("path: ");
 944                 cgit_print_path_crumbs(ctx, ctx->qry.vpath);
 945                 html("</div>");
 946         }
 947         html("<div class='content'>");
 948 }
 949
 950 void cgit_print_filemode(unsigned short mode)
 951 {
 952         if (S_ISDIR(mode))
 953                 html("d");
 954         else if (S_ISLNK(mode))
 955                 html("l");
 956         else if (S_ISGITLINK(mode))
 957                 html("m");
 958         else
 959                 html("-");
 960         html_fileperm(mode >> 6);
 961         html_fileperm(mode >> 3);
 962         html_fileperm(mode);
 963 }
 964
 965 void cgit_print_snapshot_links(const char *repo, const char *head,
 966                                const char *hex, int snapshots)
 967 {
 968         const struct cgit_snapshot_format* f;
 969         char *prefix;
 970         char *filename;
 971         unsigned char sha1[20];
 972
 973         if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
 974             (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
 975                 hex++;
 976         prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
 977         for (f = cgit_snapshot_formats; f->suffix; f++) {
 978                 if (!(snapshots & f->bit))
 979                         continue;
 980                 filename = fmt("%s%s", prefix, f->suffix);
 981                 cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
 982                 html("<br/>");
 983         }
 984 }