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 const 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 const 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 const 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 static void site_url(const char *page, const char *search, const char *sort, int ofs)
 125 {
 126         char *delim = "?";
 127
 128         if (ctx.cfg.virtual_root) {
 129                 html_attr(ctx.cfg.virtual_root);
 130                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
 131                         html("/");
 132         } else
 133                 html(ctx.cfg.script_name);
 134
 135         if (page) {
 136                 htmlf("?p=%s", page);
 137                 delim = "&amp;";
 138         }
 139         if (search) {
 140                 html(delim);
 141                 html("q=");
 142                 html_attr(search);
 143                 delim = "&amp;";
 144         }
 145         if (sort) {
 146                 html(delim);
 147                 html("s=");
 148                 html_attr(sort);
 149                 delim = "&amp;";
 150         }
 151         if (ofs) {
 152                 html(delim);
 153                 htmlf("ofs=%d", ofs);
 154         }
 155 }
 156
 157 static void site_link(const char *page, const char *name, const char *title,
 158                       const char *class, const char *search, const char *sort, int ofs)
 159 {
 160         html("<a");
 161         if (title) {
 162                 html(" title='");
 163                 html_attr(title);
 164                 html("'");
 165         }
 166         if (class) {
 167                 html(" class='");
 168                 html_attr(class);
 169                 html("'");
 170         }
 171         html(" href='");
 172         site_url(page, search, sort, ofs);
 173         html("'>");
 174         html_txt(name);
 175         html("</a>");
 176 }
 177
 178 void cgit_index_link(const char *name, const char *title, const char *class,
 179                      const char *pattern, const char *sort, int ofs)
 180 {
 181         site_link(NULL, name, title, class, pattern, sort, ofs);
 182 }
 183
 184 static char *repolink(const char *title, const char *class, const char *page,
 185                       const char *head, const char *path)
 186 {
 187         char *delim = "?";
 188
 189         html("<a");
 190         if (title) {
 191                 html(" title='");
 192                 html_attr(title);
 193                 html("'");
 194         }
 195         if (class) {
 196                 html(" class='");
 197                 html_attr(class);
 198                 html("'");
 199         }
 200         html(" href='");
 201         if (ctx.cfg.virtual_root) {
 202                 html_url_path(ctx.cfg.virtual_root);
 203                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
 204                         html("/");
 205                 html_url_path(ctx.repo->url);
 206                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 207                         html("/");
 208                 if (page) {
 209                         html_url_path(page);
 210                         html("/");
 211                         if (path)
 212                                 html_url_path(path);
 213                 }
 214         } else {
 215                 html(ctx.cfg.script_name);
 216                 html("?url=");
 217                 html_url_arg(ctx.repo->url);
 218                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 219                         html("/");
 220                 if (page) {
 221                         html_url_arg(page);
 222                         html("/");
 223                         if (path)
 224                                 html_url_arg(path);
 225                 }
 226                 delim = "&amp;";
 227         }
 228         if (head && strcmp(head, ctx.repo->defbranch)) {
 229                 html(delim);
 230                 html("h=");
 231                 html_url_arg(head);
 232                 delim = "&amp;";
 233         }
 234         return fmt("%s", delim);
 235 }
 236
 237 static void reporevlink(const char *page, const char *name, const char *title,
 238                         const char *class, const char *head, const char *rev,
 239                         const char *path)
 240 {
 241         char *delim;
 242
 243         delim = repolink(title, class, page, head, path);
 244         if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
 245                 html(delim);
 246                 html("id=");
 247                 html_url_arg(rev);
 248         }
 249         html("'>");
 250         html_txt(name);
 251         html("</a>");
 252 }
 253
 254 void cgit_summary_link(const char *name, const char *title, const char *class,
 255                        const char *head)
 256 {
 257         reporevlink(NULL, name, title, class, head, NULL, NULL);
 258 }
 259
 260 void cgit_tag_link(const char *name, const char *title, const char *class,
 261                    const char *head, const char *rev)
 262 {
 263         reporevlink("tag", name, title, class, head, rev, NULL);
 264 }
 265
 266 void cgit_tree_link(const char *name, const char *title, const char *class,
 267                     const char *head, const char *rev, const char *path)
 268 {
 269         reporevlink("tree", name, title, class, head, rev, path);
 270 }
 271
 272 void cgit_plain_link(const char *name, const char *title, const char *class,
 273                      const char *head, const char *rev, const char *path)
 274 {
 275         reporevlink("plain", name, title, class, head, rev, path);
 276 }
 277
 278 void cgit_log_link(const char *name, const char *title, const char *class,
 279                    const char *head, const char *rev, const char *path,
 280                    int ofs, const char *grep, const char *pattern, int showmsg)
 281 {
 282         char *delim;
 283
 284         delim = repolink(title, class, "log", head, path);
 285         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 286                 html(delim);
 287                 html("id=");
 288                 html_url_arg(rev);
 289                 delim = "&amp;";
 290         }
 291         if (grep && pattern) {
 292                 html(delim);
 293                 html("qt=");
 294                 html_url_arg(grep);
 295                 delim = "&amp;";
 296                 html(delim);
 297                 html("q=");
 298                 html_url_arg(pattern);
 299         }
 300         if (ofs > 0) {
 301                 html(delim);
 302                 html("ofs=");
 303                 htmlf("%d", ofs);
 304                 delim = "&amp;";
 305         }
 306         if (showmsg) {
 307                 html(delim);
 308                 html("showmsg=1");
 309         }
 310         html("'>");
 311         html_txt(name);
 312         html("</a>");
 313 }
 314
 315 void cgit_commit_link(char *name, const char *title, const char *class,
 316                       const char *head, const char *rev, const char *path,
 317                       int toggle_ssdiff)
 318 {
 319         if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
 320                 name[ctx.cfg.max_msg_len] = '\0';
 321                 name[ctx.cfg.max_msg_len - 1] = '.';
 322                 name[ctx.cfg.max_msg_len - 2] = '.';
 323                 name[ctx.cfg.max_msg_len - 3] = '.';
 324         }
 325
 326         char *delim;
 327
 328         delim = repolink(title, class, "commit", head, path);
 329         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 330                 html(delim);
 331                 html("id=");
 332                 html_url_arg(rev);
 333                 delim = "&amp;";
 334         }
 335         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 336                 html(delim);
 337                 html("ss=1");
 338                 delim = "&amp;";
 339         }
 340         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 341                 html(delim);
 342                 html("context=");
 343                 htmlf("%d", ctx.qry.context);
 344                 delim = "&amp;";
 345         }
 346         if (ctx.qry.ignorews) {
 347                 html(delim);
 348                 html("ignorews=1");
 349                 delim = "&amp;";
 350         }
 351         html("'>");
 352         if (name[0] != '\0')
 353                 html_txt(name);
 354         else
 355                 html_txt("(no commit message)");
 356         html("</a>");
 357 }
 358
 359 void cgit_refs_link(const char *name, const char *title, const char *class,
 360                     const char *head, const char *rev, const char *path)
 361 {
 362         reporevlink("refs", name, title, class, head, rev, path);
 363 }
 364
 365 void cgit_snapshot_link(const char *name, const char *title, const char *class,
 366                         const char *head, const char *rev,
 367                         const char *archivename)
 368 {
 369         reporevlink("snapshot", name, title, class, head, rev, archivename);
 370 }
 371
 372 void cgit_diff_link(const char *name, const char *title, const char *class,
 373                     const char *head, const char *new_rev, const char *old_rev,
 374                     const char *path, int toggle_ssdiff)
 375 {
 376         char *delim;
 377
 378         delim = repolink(title, class, "diff", head, path);
 379         if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
 380                 html(delim);
 381                 html("id=");
 382                 html_url_arg(new_rev);
 383                 delim = "&amp;";
 384         }
 385         if (old_rev) {
 386                 html(delim);
 387                 html("id2=");
 388                 html_url_arg(old_rev);
 389                 delim = "&amp;";
 390         }
 391         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 392                 html(delim);
 393                 html("ss=1");
 394                 delim = "&amp;";
 395         }
 396         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 397                 html(delim);
 398                 html("context=");
 399                 htmlf("%d", ctx.qry.context);
 400                 delim = "&amp;";
 401         }
 402         if (ctx.qry.ignorews) {
 403                 html(delim);
 404                 html("ignorews=1");
 405                 delim = "&amp;";
 406         }
 407         html("'>");
 408         html_txt(name);
 409         html("</a>");
 410 }
 411
 412 void cgit_patch_link(const char *name, const char *title, const char *class,
 413                      const char *head, const char *rev, const char *path)
 414 {
 415         reporevlink("patch", name, title, class, head, rev, path);
 416 }
 417
 418 void cgit_stats_link(const char *name, const char *title, const char *class,
 419                      const char *head, const char *path)
 420 {
 421         reporevlink("stats", name, title, class, head, NULL, path);
 422 }
 423
 424 static void cgit_self_link(char *name, const char *title, const char *class,
 425                            struct cgit_context *ctx)
 426 {
 427         if (!strcmp(ctx->qry.page, "repolist"))
 428                 cgit_index_link(name, title, class, ctx->qry.search, ctx->qry.sort,
 429                                 ctx->qry.ofs);
 430         else if (!strcmp(ctx->qry.page, "summary"))
 431                 cgit_summary_link(name, title, class, ctx->qry.head);
 432         else if (!strcmp(ctx->qry.page, "tag"))
 433                 cgit_tag_link(name, title, class, ctx->qry.head,
 434                               ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
 435         else if (!strcmp(ctx->qry.page, "tree"))
 436                 cgit_tree_link(name, title, class, ctx->qry.head,
 437                                ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 438                                ctx->qry.path);
 439         else if (!strcmp(ctx->qry.page, "plain"))
 440                 cgit_plain_link(name, title, class, ctx->qry.head,
 441                                 ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 442                                 ctx->qry.path);
 443         else if (!strcmp(ctx->qry.page, "log"))
 444                 cgit_log_link(name, title, class, ctx->qry.head,
 445                               ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 446                               ctx->qry.path, ctx->qry.ofs,
 447                               ctx->qry.grep, ctx->qry.search,
 448                               ctx->qry.showmsg);
 449         else if (!strcmp(ctx->qry.page, "commit"))
 450                 cgit_commit_link(name, title, class, ctx->qry.head,
 451                                  ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 452                                  ctx->qry.path, 0);
 453         else if (!strcmp(ctx->qry.page, "patch"))
 454                 cgit_patch_link(name, title, class, ctx->qry.head,
 455                                 ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 456                                 ctx->qry.path);
 457         else if (!strcmp(ctx->qry.page, "refs"))
 458                 cgit_refs_link(name, title, class, ctx->qry.head,
 459                                ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 460                                ctx->qry.path);
 461         else if (!strcmp(ctx->qry.page, "snapshot"))
 462                 cgit_snapshot_link(name, title, class, ctx->qry.head,
 463                                    ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 464                                    ctx->qry.path);
 465         else if (!strcmp(ctx->qry.page, "diff"))
 466                 cgit_diff_link(name, title, class, ctx->qry.head,
 467                                ctx->qry.sha1, ctx->qry.sha2,
 468                                ctx->qry.path, 0);
 469         else if (!strcmp(ctx->qry.page, "stats"))
 470                 cgit_stats_link(name, title, class, ctx->qry.head,
 471                                 ctx->qry.path);
 472         else {
 473                 /* Don't known how to make link for this page */
 474                 repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
 475                 html("><!-- cgit_self_link() doesn't know how to make link for page '");
 476                 html_txt(ctx->qry.page);
 477                 html("' -->");
 478                 html_txt(name);
 479                 html("</a>");
 480         }
 481 }
 482
 483 void cgit_object_link(struct object *obj)
 484 {
 485         char *page, *shortrev, *fullrev, *name;
 486
 487         fullrev = sha1_to_hex(obj->sha1);
 488         shortrev = xstrdup(fullrev);
 489         shortrev[10] = '\0';
 490         if (obj->type == OBJ_COMMIT) {
 491                 cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
 492                                  ctx.qry.head, fullrev, NULL, 0);
 493                 return;
 494         } else if (obj->type == OBJ_TREE)
 495                 page = "tree";
 496         else if (obj->type == OBJ_TAG)
 497                 page = "tag";
 498         else
 499                 page = "blob";
 500         name = fmt("%s %s...", typename(obj->type), shortrev);
 501         reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 502 }
 503
 504 static struct string_list_item *lookup_path(struct string_list *list,
 505                                             const char *path)
 506 {
 507         struct string_list_item *item;
 508
 509         while (path && path[0]) {
 510                 if ((item = string_list_lookup(list, path)))
 511                         return item;
 512                 if (!(path = strchr(path, '/')))
 513                         break;
 514                 path++;
 515         }
 516         return NULL;
 517 }
 518
 519 void cgit_submodule_link(const char *class, char *path, const char *rev)
 520 {
 521         struct string_list *list;
 522         struct string_list_item *item;
 523         char tail, *dir;
 524         size_t len;
 525
 526         len = 0;
 527         tail = 0;
 528         list = &ctx.repo->submodules;
 529         item = lookup_path(list, path);
 530         if (!item) {
 531                 len = strlen(path);
 532                 tail = path[len - 1];
 533                 if (tail == '/') {
 534                         path[len - 1] = 0;
 535                         item = lookup_path(list, path);
 536                 }
 537         }
 538         html("<a ");
 539         if (class)
 540                 htmlf("class='%s' ", class);
 541         html("href='");
 542         if (item) {
 543                 html_attr(fmt(item->util, rev));
 544         } else if (ctx.repo->module_link) {
 545                 dir = strrchr(path, '/');
 546                 if (dir)
 547                         dir++;
 548                 else
 549                         dir = path;
 550                 html_attr(fmt(ctx.repo->module_link, dir, rev));
 551         } else {
 552                 html("#");
 553         }
 554         html("'>");
 555         html_txt(path);
 556         html("</a>");
 557         html_txt(fmt(" @ %.7s", rev));
 558         if (item && tail)
 559                 path[len - 1] = tail;
 560 }
 561
 562 void cgit_print_date(time_t secs, const char *format, int local_time)
 563 {
 564         char buf[64];
 565         struct tm *time;
 566
 567         if (!secs)
 568                 return;
 569         if (local_time)
 570                 time = localtime(&secs);
 571         else
 572                 time = gmtime(&secs);
 573         strftime(buf, sizeof(buf)-1, format, time);
 574         html_txt(buf);
 575 }
 576
 577 void cgit_print_age(time_t t, time_t max_relative, const char *format)
 578 {
 579         time_t now, secs;
 580
 581         if (!t)
 582                 return;
 583         time(&now);
 584         secs = now - t;
 585
 586         if (secs > max_relative && max_relative >= 0) {
 587                 cgit_print_date(t, format, ctx.cfg.local_time);
 588                 return;
 589         }
 590
 591         if (secs < TM_HOUR * 2) {
 592                 htmlf("<span class='age-mins'>%.0f min.</span>",
 593                       secs * 1.0 / TM_MIN);
 594                 return;
 595         }
 596         if (secs < TM_DAY * 2) {
 597                 htmlf("<span class='age-hours'>%.0f hours</span>",
 598                       secs * 1.0 / TM_HOUR);
 599                 return;
 600         }
 601         if (secs < TM_WEEK * 2) {
 602                 htmlf("<span class='age-days'>%.0f days</span>",
 603                       secs * 1.0 / TM_DAY);
 604                 return;
 605         }
 606         if (secs < TM_MONTH * 2) {
 607                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 608                       secs * 1.0 / TM_WEEK);
 609                 return;
 610         }
 611         if (secs < TM_YEAR * 2) {
 612                 htmlf("<span class='age-months'>%.0f months</span>",
 613                       secs * 1.0 / TM_MONTH);
 614                 return;
 615         }
 616         htmlf("<span class='age-years'>%.0f years</span>",
 617               secs * 1.0 / TM_YEAR);
 618 }
 619
 620 void cgit_print_http_headers(struct cgit_context *ctx)
 621 {
 622         if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
 623                 return;
 624
 625         if (ctx->page.status)
 626                 htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
 627         if (ctx->page.mimetype && ctx->page.charset)
 628                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
 629                       ctx->page.charset);
 630         else if (ctx->page.mimetype)
 631                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
 632         if (ctx->page.size)
 633                 htmlf("Content-Length: %zd\n", ctx->page.size);
 634         if (ctx->page.filename)
 635                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
 636                       ctx->page.filename);
 637         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
 638         htmlf("Expires: %s\n", http_date(ctx->page.expires));
 639         if (ctx->page.etag)
 640                 htmlf("ETag: \"%s\"\n", ctx->page.etag);
 641         html("\n");
 642         if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
 643                 exit(0);
 644 }
 645
 646 void cgit_print_docstart(struct cgit_context *ctx)
 647 {
 648         if (ctx->cfg.embedded) {
 649                 if (ctx->cfg.header)
 650                         html_include(ctx->cfg.header);
 651                 return;
 652         }
 653
 654         const char *host = cgit_hosturl();
 655         html(cgit_doctype);
 656         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 657         html("<head>\n");
 658         html("<title>");
 659         html_txt(ctx->page.title);
 660         html("</title>\n");
 661         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 662         if (ctx->cfg.robots && *ctx->cfg.robots)
 663                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
 664         html("<link rel='stylesheet' type='text/css' href='");
 665         html_attr(ctx->cfg.css);
 666         html("'/>\n");
 667         if (ctx->cfg.favicon) {
 668                 html("<link rel='shortcut icon' href='");
 669                 html_attr(ctx->cfg.favicon);
 670                 html("'/>\n");
 671         }
 672         if (host && ctx->repo && ctx->qry.head) {
 673                 html("<link rel='alternate' title='Atom feed' href='");
 674                 html(cgit_httpscheme());
 675                 html_attr(cgit_hosturl());
 676                 html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
 677                                        fmt("h=%s", ctx->qry.head)));
 678                 html("' type='application/atom+xml'/>\n");
 679         }
 680         if (ctx->cfg.head_include)
 681                 html_include(ctx->cfg.head_include);
 682         html("</head>\n");
 683         html("<body>\n");
 684         if (ctx->cfg.header)
 685                 html_include(ctx->cfg.header);
 686 }
 687
 688 void cgit_print_docend()
 689 {
 690         html("</div> <!-- class=content -->\n");
 691         if (ctx.cfg.embedded) {
 692                 html("</div> <!-- id=cgit -->\n");
 693                 if (ctx.cfg.footer)
 694                         html_include(ctx.cfg.footer);
 695                 return;
 696         }
 697         if (ctx.cfg.footer)
 698                 html_include(ctx.cfg.footer);
 699         else {
 700                 htmlf("<div class='footer'>generated  by cgit %s at ",
 701                         cgit_version);
 702                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
 703                 html("</div>\n");
 704         }
 705         html("</div> <!-- id=cgit -->\n");
 706         html("</body>\n</html>\n");
 707 }
 708
 709 static int print_branch_option(const char *refname, const unsigned char *sha1,
 710                                int flags, void *cb_data)
 711 {
 712         char *name = (char *)refname;
 713         html_option(name, name, ctx.qry.head);
 714         return 0;
 715 }
 716
 717 void cgit_add_hidden_formfields(int incl_head, int incl_search,
 718                                 const char *page)
 719 {
 720         char *url;
 721
 722         if (!ctx.cfg.virtual_root) {
 723                 url = fmt("%s/%s", ctx.qry.repo, page);
 724                 if (ctx.qry.vpath)
 725                         url = fmt("%s/%s", url, ctx.qry.vpath);
 726                 html_hidden("url", url);
 727         }
 728
 729         if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
 730             strcmp(ctx.qry.head, ctx.repo->defbranch))
 731                 html_hidden("h", ctx.qry.head);
 732
 733         if (ctx.qry.sha1)
 734                 html_hidden("id", ctx.qry.sha1);
 735         if (ctx.qry.sha2)
 736                 html_hidden("id2", ctx.qry.sha2);
 737         if (ctx.qry.showmsg)
 738                 html_hidden("showmsg", "1");
 739
 740         if (incl_search) {
 741                 if (ctx.qry.grep)
 742                         html_hidden("qt", ctx.qry.grep);
 743                 if (ctx.qry.search)
 744                         html_hidden("q", ctx.qry.search);
 745         }
 746 }
 747
 748 static const char *hc(struct cgit_context *ctx, const char *page)
 749 {
 750         return strcmp(ctx->qry.page, page) ? NULL : "active";
 751 }
 752
 753 static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
 754 {
 755         char *old_path = ctx->qry.path;
 756         char *p = path, *q, *end = path + strlen(path);
 757
 758         ctx->qry.path = NULL;
 759         cgit_self_link("root", NULL, NULL, ctx);
 760         ctx->qry.path = p = path;
 761         while (p < end) {
 762                 if (!(q = strchr(p, '/')))
 763                         q = end;
 764                 *q = '\0';
 765                 html_txt("/");
 766                 cgit_self_link(p, NULL, NULL, ctx);
 767                 if (q < end)
 768                         *q = '/';
 769                 p = q + 1;
 770         }
 771         ctx->qry.path = old_path;
 772 }
 773
 774 static void print_header(struct cgit_context *ctx)
 775 {
 776         char *logo = NULL, *logo_link = NULL;
 777
 778         html("<table id='header'>\n");
 779         html("<tr>\n");
 780
 781         if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
 782                 logo = ctx->repo->logo;
 783         else
 784                 logo = ctx->cfg.logo;
 785         if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
 786                 logo_link = ctx->repo->logo_link;
 787         else
 788                 logo_link = ctx->cfg.logo_link;
 789         if (logo && *logo) {
 790                 html("<td class='logo' rowspan='2'><a href='");
 791                 if (logo_link && *logo_link)
 792                         html_attr(logo_link);
 793                 else
 794                         html_attr(cgit_rooturl());
 795                 html("'><img src='");
 796                 html_attr(logo);
 797                 html("' alt='cgit logo'/></a></td>\n");
 798         }
 799
 800         html("<td class='main'>");
 801         if (ctx->repo) {
 802                 cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 803                 html(" : ");
 804                 cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
 805                 html("</td><td class='form'>");
 806                 html("<form method='get' action=''>\n");
 807                 cgit_add_hidden_formfields(0, 1, ctx->qry.page);
 808                 html("<select name='h' onchange='this.form.submit();'>\n");
 809                 for_each_branch_ref(print_branch_option, ctx->qry.head);
 810                 html("</select> ");
 811                 html("<input type='submit' name='' value='switch'/>");
 812                 html("</form>");
 813         } else
 814                 html_txt(ctx->cfg.root_title);
 815         html("</td></tr>\n");
 816
 817         html("<tr><td class='sub'>");
 818         if (ctx->repo) {
 819                 html_txt(ctx->repo->desc);
 820                 html("</td><td class='sub right'>");
 821                 html_txt(ctx->repo->owner);
 822         } else {
 823                 if (ctx->cfg.root_desc)
 824                         html_txt(ctx->cfg.root_desc);
 825                 else if (ctx->cfg.index_info)
 826                         html_include(ctx->cfg.index_info);
 827         }
 828         html("</td></tr></table>\n");
 829 }
 830
 831 void cgit_print_pageheader(struct cgit_context *ctx)
 832 {
 833         html("<div id='cgit'>");
 834         if (!ctx->cfg.noheader)
 835                 print_header(ctx);
 836
 837         html("<table class='tabs'><tr><td>\n");
 838         if (ctx->repo) {
 839                 cgit_summary_link("summary", NULL, hc(ctx, "summary"),
 840                                   ctx->qry.head);
 841                 cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
 842                                ctx->qry.sha1, NULL);
 843                 cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
 844                               NULL, ctx->qry.vpath, 0, NULL, NULL,
 845                               ctx->qry.showmsg);
 846                 cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
 847                                ctx->qry.sha1, ctx->qry.vpath);
 848                 cgit_commit_link("commit", NULL, hc(ctx, "commit"),
 849                                  ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
 850                 cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
 851                                ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
 852                 if (ctx->repo->max_stats)
 853                         cgit_stats_link("stats", NULL, hc(ctx, "stats"),
 854                                         ctx->qry.head, ctx->qry.vpath);
 855                 if (ctx->repo->readme)
 856                         reporevlink("about", "about", NULL,
 857                                     hc(ctx, "about"), ctx->qry.head, NULL,
 858                                     NULL);
 859                 html("</td><td class='form'>");
 860                 html("<form class='right' method='get' action='");
 861                 if (ctx->cfg.virtual_root)
 862                         html_url_path(cgit_fileurl(ctx->qry.repo, "log",
 863                                                    ctx->qry.vpath, NULL));
 864                 html("'>\n");
 865                 cgit_add_hidden_formfields(1, 0, "log");
 866                 html("<select name='qt'>\n");
 867                 html_option("grep", "log msg", ctx->qry.grep);
 868                 html_option("author", "author", ctx->qry.grep);
 869                 html_option("committer", "committer", ctx->qry.grep);
 870                 html_option("range", "range", ctx->qry.grep);
 871                 html("</select>\n");
 872                 html("<input class='txt' type='text' size='10' name='q' value='");
 873                 html_attr(ctx->qry.search);
 874                 html("'/>\n");
 875                 html("<input type='submit' value='search'/>\n");
 876                 html("</form>\n");
 877         } else {
 878                 site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
 879                 if (ctx->cfg.root_readme)
 880                         site_link("about", "about", NULL, hc(ctx, "about"),
 881                                   NULL, NULL, 0);
 882                 html("</td><td class='form'>");
 883                 html("<form method='get' action='");
 884                 html_attr(cgit_rooturl());
 885                 html("'>\n");
 886                 html("<input type='text' name='q' size='10' value='");
 887                 html_attr(ctx->qry.search);
 888                 html("'/>\n");
 889                 html("<input type='submit' value='search'/>\n");
 890                 html("</form>");
 891         }
 892         html("</td></tr></table>\n");
 893         if (ctx->qry.vpath) {
 894                 html("<div class='path'>");
 895                 html("path: ");
 896                 cgit_print_path_crumbs(ctx, ctx->qry.vpath);
 897                 html("</div>");
 898         }
 899         html("<div class='content'>");
 900 }
 901
 902 void cgit_print_filemode(unsigned short mode)
 903 {
 904         if (S_ISDIR(mode))
 905                 html("d");
 906         else if (S_ISLNK(mode))
 907                 html("l");
 908         else if (S_ISGITLINK(mode))
 909                 html("m");
 910         else
 911                 html("-");
 912         html_fileperm(mode >> 6);
 913         html_fileperm(mode >> 3);
 914         html_fileperm(mode);
 915 }
 916
 917 void cgit_print_snapshot_links(const char *repo, const char *head,
 918                                const char *hex, int snapshots)
 919 {
 920         const struct cgit_snapshot_format* f;
 921         char *prefix;
 922         char *filename;
 923         unsigned char sha1[20];
 924
 925         if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
 926             (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
 927                 hex++;
 928         prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
 929         for (f = cgit_snapshot_formats; f->suffix; f++) {
 930                 if (!(snapshots & f->bit))
 931                         continue;
 932                 filename = fmt("%s%s", prefix, f->suffix);
 933                 cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
 934                 html("<br/>");
 935         }
 936         free(prefix);
 937 }