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                 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                 cgit_summary_link(name, title, class, ctx->qry.head);
 444         else if (!strcmp(ctx->qry.page, "tag"))
 445                 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                 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                 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                 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                 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                 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                 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                 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                 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                 cgit_stats_link(name, title, class, ctx->qry.head,
 483                                 ctx->qry.path);
 484         else {
 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
 495 void cgit_object_link(struct object *obj)
 496 {
 497         char *page, *shortrev, *fullrev, *name;
 498
 499         fullrev = sha1_to_hex(obj->sha1);
 500         shortrev = xstrdup(fullrev);
 501         shortrev[10] = '\0';
 502         if (obj->type == OBJ_COMMIT) {
 503                 cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
 504                                  ctx.qry.head, fullrev, NULL, 0);
 505                 return;
 506         } else if (obj->type == OBJ_TREE)
 507                 page = "tree";
 508         else if (obj->type == OBJ_TAG)
 509                 page = "tag";
 510         else
 511                 page = "blob";
 512         name = fmt("%s %s...", typename(obj->type), shortrev);
 513         reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 514 }
 515
 516 struct string_list_item *lookup_path(struct string_list *list,
 517                                      const char *path)
 518 {
 519         struct string_list_item *item;
 520
 521         while (path && path[0]) {
 522                 if ((item = string_list_lookup(list, path)))
 523                         return item;
 524                 if (!(path = strchr(path, '/')))
 525                         break;
 526                 path++;
 527         }
 528         return NULL;
 529 }
 530
 531 void cgit_submodule_link(const char *class, char *path, const char *rev)
 532 {
 533         struct string_list *list;
 534         struct string_list_item *item;
 535         char tail, *dir;
 536         size_t len;
 537
 538         tail = 0;
 539         list = &ctx.repo->submodules;
 540         item = lookup_path(list, path);
 541         if (!item) {
 542                 len = strlen(path);
 543                 tail = path[len - 1];
 544                 if (tail == '/') {
 545                         path[len - 1] = 0;
 546                         item = lookup_path(list, path);
 547                 }
 548         }
 549         html("<a ");
 550         if (class)
 551                 htmlf("class='%s' ", class);
 552         html("href='");
 553         if (item) {
 554                 html_attr(fmt(item->util, rev));
 555         } else if (ctx.repo->module_link) {
 556                 dir = strrchr(path, '/');
 557                 if (dir)
 558                         dir++;
 559                 else
 560                         dir = path;
 561                 html_attr(fmt(ctx.repo->module_link, dir, rev));
 562         } else {
 563                 html("#");
 564         }
 565         html("'>");
 566         html_txt(path);
 567         html("</a>");
 568         html_txt(fmt(" @ %.7s", rev));
 569         if (item && tail)
 570                 path[len - 1] = tail;
 571 }
 572
 573 void cgit_print_date(time_t secs, const char *format, int local_time)
 574 {
 575         char buf[64];
 576         struct tm *time;
 577
 578         if (!secs)
 579                 return;
 580         if (local_time)
 581                 time = localtime(&secs);
 582         else
 583                 time = gmtime(&secs);
 584         strftime(buf, sizeof(buf)-1, format, time);
 585         html_txt(buf);
 586 }
 587
 588 void cgit_print_age(time_t t, time_t max_relative, const char *format)
 589 {
 590         time_t now, secs;
 591
 592         if (!t)
 593                 return;
 594         time(&now);
 595         secs = now - t;
 596
 597         if (secs > max_relative && max_relative >= 0) {
 598                 cgit_print_date(t, format, ctx.cfg.local_time);
 599                 return;
 600         }
 601
 602         if (secs < TM_HOUR * 2) {
 603                 htmlf("<span class='age-mins'>%.0f min.</span>",
 604                       secs * 1.0 / TM_MIN);
 605                 return;
 606         }
 607         if (secs < TM_DAY * 2) {
 608                 htmlf("<span class='age-hours'>%.0f hours</span>",
 609                       secs * 1.0 / TM_HOUR);
 610                 return;
 611         }
 612         if (secs < TM_WEEK * 2) {
 613                 htmlf("<span class='age-days'>%.0f days</span>",
 614                       secs * 1.0 / TM_DAY);
 615                 return;
 616         }
 617         if (secs < TM_MONTH * 2) {
 618                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 619                       secs * 1.0 / TM_WEEK);
 620                 return;
 621         }
 622         if (secs < TM_YEAR * 2) {
 623                 htmlf("<span class='age-months'>%.0f months</span>",
 624                       secs * 1.0 / TM_MONTH);
 625                 return;
 626         }
 627         htmlf("<span class='age-years'>%.0f years</span>",
 628               secs * 1.0 / TM_YEAR);
 629 }
 630
 631 void cgit_print_http_headers(struct cgit_context *ctx)
 632 {
 633         if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
 634                 return;
 635
 636         if (ctx->page.status)
 637                 htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
 638         if (ctx->page.mimetype && ctx->page.charset)
 639                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
 640                       ctx->page.charset);
 641         else if (ctx->page.mimetype)
 642                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
 643         if (ctx->page.size)
 644                 htmlf("Content-Length: %zd\n", ctx->page.size);
 645         if (ctx->page.filename)
 646                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
 647                       ctx->page.filename);
 648         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
 649         htmlf("Expires: %s\n", http_date(ctx->page.expires));
 650         if (ctx->page.etag)
 651                 htmlf("ETag: \"%s\"\n", ctx->page.etag);
 652         html("\n");
 653         if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
 654                 exit(0);
 655 }
 656
 657 void cgit_print_docstart(struct cgit_context *ctx)
 658 {
 659         if (ctx->cfg.embedded) {
 660                 if (ctx->cfg.header)
 661                         html_include(ctx->cfg.header);
 662                 return;
 663         }
 664
 665         char *host = cgit_hosturl();
 666         html(cgit_doctype);
 667         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 668         html("<head>\n");
 669         html("<title>");
 670         html_txt(ctx->page.title);
 671         html("</title>\n");
 672         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 673         if (ctx->cfg.robots && *ctx->cfg.robots)
 674                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
 675         html("<link rel='stylesheet' type='text/css' href='");
 676         html_attr(ctx->cfg.css);
 677         html("'/>\n");
 678         if (ctx->cfg.favicon) {
 679                 html("<link rel='shortcut icon' href='");
 680                 html_attr(ctx->cfg.favicon);
 681                 html("'/>\n");
 682         }
 683         if (host && ctx->repo && ctx->qry.head) {
 684                 html("<link rel='alternate' title='Atom feed' href='");
 685                 html(cgit_httpscheme());
 686                 html_attr(cgit_hosturl());
 687                 html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
 688                                        fmt("h=%s", ctx->qry.head)));
 689                 html("' type='application/atom+xml'/>\n");
 690         }
 691         if (ctx->cfg.head_include)
 692                 html_include(ctx->cfg.head_include);
 693         html("</head>\n");
 694         html("<body>\n");
 695         if (ctx->cfg.header)
 696                 html_include(ctx->cfg.header);
 697 }
 698
 699 void cgit_print_docend()
 700 {
 701         html("</div> <!-- class=content -->\n");
 702         if (ctx.cfg.embedded) {
 703                 html("</div> <!-- id=cgit -->\n");
 704                 if (ctx.cfg.footer)
 705                         html_include(ctx.cfg.footer);
 706                 return;
 707         }
 708         if (ctx.cfg.footer)
 709                 html_include(ctx.cfg.footer);
 710         else {
 711                 htmlf("<div class='footer'>generated  by cgit %s at ",
 712                         cgit_version);
 713                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
 714                 html("</div>\n");
 715         }
 716         html("</div> <!-- id=cgit -->\n");
 717         html("</body>\n</html>\n");
 718 }
 719
 720 int print_branch_option(const char *refname, const unsigned char *sha1,
 721                         int flags, void *cb_data)
 722 {
 723         char *name = (char *)refname;
 724         html_option(name, name, ctx.qry.head);
 725         return 0;
 726 }
 727
 728 int print_archive_ref(const char *refname, const unsigned char *sha1,
 729                        int flags, void *cb_data)
 730 {
 731         struct tag *tag;
 732         struct taginfo *info;
 733         struct object *obj;
 734         char buf[256], *url;
 735         unsigned char fileid[20];
 736         int *header = (int *)cb_data;
 737
 738         if (prefixcmp(refname, "refs/archives"))
 739                 return 0;
 740         strncpy(buf, refname + 14, sizeof(buf));
 741         obj = parse_object(sha1);
 742         if (!obj)
 743                 return 1;
 744         if (obj->type == OBJ_TAG) {
 745                 tag = lookup_tag(sha1);
 746                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 747                         return 0;
 748                 hashcpy(fileid, tag->tagged->sha1);
 749         } else if (obj->type != OBJ_BLOB) {
 750                 return 0;
 751         } else {
 752                 hashcpy(fileid, sha1);
 753         }
 754         if (!*header) {
 755                 html("<h1>download</h1>\n");
 756                 *header = 1;
 757         }
 758         url = cgit_pageurl(ctx.qry.repo, "blob",
 759                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
 760                                buf));
 761         html_link_open(url, NULL, "menu");
 762         html_txt(strlpart(buf, 20));
 763         html_link_close();
 764         return 0;
 765 }
 766
 767 void cgit_add_hidden_formfields(int incl_head, int incl_search,
 768                                 const char *page)
 769 {
 770         char *url;
 771
 772         if (!ctx.cfg.virtual_root) {
 773                 url = fmt("%s/%s", ctx.qry.repo, page);
 774                 if (ctx.qry.vpath)
 775                         url = fmt("%s/%s", url, ctx.qry.vpath);
 776                 html_hidden("url", url);
 777         }
 778
 779         if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
 780             strcmp(ctx.qry.head, ctx.repo->defbranch))
 781                 html_hidden("h", ctx.qry.head);
 782
 783         if (ctx.qry.sha1)
 784                 html_hidden("id", ctx.qry.sha1);
 785         if (ctx.qry.sha2)
 786                 html_hidden("id2", ctx.qry.sha2);
 787         if (ctx.qry.showmsg)
 788                 html_hidden("showmsg", "1");
 789
 790         if (incl_search) {
 791                 if (ctx.qry.grep)
 792                         html_hidden("qt", ctx.qry.grep);
 793                 if (ctx.qry.search)
 794                         html_hidden("q", ctx.qry.search);
 795         }
 796 }
 797
 798 static const char *hc(struct cgit_context *ctx, const char *page)
 799 {
 800         return strcmp(ctx->qry.page, page) ? NULL : "active";
 801 }
 802
 803 static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
 804 {
 805         char *old_path = ctx->qry.path;
 806         char *p = path, *q, *end = path + strlen(path);
 807
 808         ctx->qry.path = NULL;
 809         cgit_self_link("root", NULL, NULL, ctx);
 810         ctx->qry.path = p = path;
 811         while (p < end) {
 812                 if (!(q = strchr(p, '/')))
 813                         q = end;
 814                 *q = '\0';
 815                 html_txt("/");
 816                 cgit_self_link(p, NULL, NULL, ctx);
 817                 if (q < end)
 818                         *q = '/';
 819                 p = q + 1;
 820         }
 821         ctx->qry.path = old_path;
 822 }
 823
 824 static void print_header(struct cgit_context *ctx)
 825 {
 826         char *logo = NULL, *logo_link = NULL;
 827
 828         html("<table id='header'>\n");
 829         html("<tr>\n");
 830
 831         if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
 832                 logo = ctx->repo->logo;
 833         else
 834                 logo = ctx->cfg.logo;
 835         if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
 836                 logo_link = ctx->repo->logo_link;
 837         else
 838                 logo_link = ctx->cfg.logo_link;
 839         if (logo && *logo) {
 840                 html("<td class='logo' rowspan='2'><a href='");
 841                 if (logo_link && *logo_link)
 842                         html_attr(logo_link);
 843                 else
 844                         html_attr(cgit_rooturl());
 845                 html("'><img src='");
 846                 html_attr(logo);
 847                 html("' alt='cgit logo'/></a></td>\n");
 848         }
 849
 850         html("<td class='main'>");
 851         if (ctx->repo) {
 852                 cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 853                 html(" : ");
 854                 cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
 855                 html("</td><td class='form'>");
 856                 html("<form method='get' action=''>\n");
 857                 cgit_add_hidden_formfields(0, 1, ctx->qry.page);
 858                 html("<select name='h' onchange='this.form.submit();'>\n");
 859                 for_each_branch_ref(print_branch_option, ctx->qry.head);
 860                 html("</select> ");
 861                 html("<input type='submit' name='' value='switch'/>");
 862                 html("</form>");
 863         } else
 864                 html_txt(ctx->cfg.root_title);
 865         html("</td></tr>\n");
 866
 867         html("<tr><td class='sub'>");
 868         if (ctx->repo) {
 869                 html_txt(ctx->repo->desc);
 870                 html("</td><td class='sub right'>");
 871                 html_txt(ctx->repo->owner);
 872         } else {
 873                 if (ctx->cfg.root_desc)
 874                         html_txt(ctx->cfg.root_desc);
 875                 else if (ctx->cfg.index_info)
 876                         html_include(ctx->cfg.index_info);
 877         }
 878         html("</td></tr></table>\n");
 879 }
 880
 881 void cgit_print_pageheader(struct cgit_context *ctx)
 882 {
 883         html("<div id='cgit'>");
 884         if (!ctx->cfg.noheader)
 885                 print_header(ctx);
 886
 887         html("<table class='tabs'><tr><td>\n");
 888         if (ctx->repo) {
 889                 cgit_summary_link("summary", NULL, hc(ctx, "summary"),
 890                                   ctx->qry.head);
 891                 cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
 892                                ctx->qry.sha1, NULL);
 893                 cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
 894                               NULL, ctx->qry.vpath, 0, NULL, NULL,
 895                               ctx->qry.showmsg);
 896                 cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
 897                                ctx->qry.sha1, ctx->qry.vpath);
 898                 cgit_commit_link("commit", NULL, hc(ctx, "commit"),
 899                                  ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
 900                 cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
 901                                ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
 902                 if (ctx->repo->max_stats)
 903                         cgit_stats_link("stats", NULL, hc(ctx, "stats"),
 904                                         ctx->qry.head, ctx->qry.vpath);
 905                 if (ctx->repo->readme)
 906                         reporevlink("about", "about", NULL,
 907                                     hc(ctx, "about"), ctx->qry.head, NULL,
 908                                     NULL);
 909                 html("</td><td class='form'>");
 910                 html("<form class='right' method='get' action='");
 911                 if (ctx->cfg.virtual_root)
 912                         html_url_path(cgit_fileurl(ctx->qry.repo, "log",
 913                                                    ctx->qry.vpath, NULL));
 914                 html("'>\n");
 915                 cgit_add_hidden_formfields(1, 0, "log");
 916                 html("<select name='qt'>\n");
 917                 html_option("grep", "log msg", ctx->qry.grep);
 918                 html_option("author", "author", ctx->qry.grep);
 919                 html_option("committer", "committer", ctx->qry.grep);
 920                 html_option("range", "range", ctx->qry.grep);
 921                 html("</select>\n");
 922                 html("<input class='txt' type='text' size='10' name='q' value='");
 923                 html_attr(ctx->qry.search);
 924                 html("'/>\n");
 925                 html("<input type='submit' value='search'/>\n");
 926                 html("</form>\n");
 927         } else {
 928                 site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
 929                 if (ctx->cfg.root_readme)
 930                         site_link("about", "about", NULL, hc(ctx, "about"),
 931                                   NULL, NULL, 0);
 932                 html("</td><td class='form'>");
 933                 html("<form method='get' action='");
 934                 html_attr(cgit_rooturl());
 935                 html("'>\n");
 936                 html("<input type='text' name='q' size='10' value='");
 937                 html_attr(ctx->qry.search);
 938                 html("'/>\n");
 939                 html("<input type='submit' value='search'/>\n");
 940                 html("</form>");
 941         }
 942         html("</td></tr></table>\n");
 943         if (ctx->qry.vpath) {
 944                 html("<div class='path'>");
 945                 html("path: ");
 946                 cgit_print_path_crumbs(ctx, ctx->qry.vpath);
 947                 html("</div>");
 948         }
 949         html("<div class='content'>");
 950 }
 951
 952 void cgit_print_filemode(unsigned short mode)
 953 {
 954         if (S_ISDIR(mode))
 955                 html("d");
 956         else if (S_ISLNK(mode))
 957                 html("l");
 958         else if (S_ISGITLINK(mode))
 959                 html("m");
 960         else
 961                 html("-");
 962         html_fileperm(mode >> 6);
 963         html_fileperm(mode >> 3);
 964         html_fileperm(mode);
 965 }
 966
 967 void cgit_print_snapshot_links(const char *repo, const char *head,
 968                                const char *hex, int snapshots)
 969 {
 970         const struct cgit_snapshot_format* f;
 971         char *prefix;
 972         char *filename;
 973         unsigned char sha1[20];
 974
 975         if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
 976             (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
 977                 hex++;
 978         prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
 979         for (f = cgit_snapshot_formats; f->suffix; f++) {
 980                 if (!(snapshots & f->bit))
 981                         continue;
 982                 filename = fmt("%s%s", prefix, f->suffix);
 983                 cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
 984                 html("<br/>");
 985         }
 986 }