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 "ui-shared.h"
  11 #include "cmd.h"
  12 #include "html.h"
  13
  14 const char cgit_doctype[] =
  15 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
  16 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
  17
  18 static char *http_date(time_t t)
  19 {
  20         static char day[][4] =
  21                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
  22         static char month[][4] =
  23                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
  24                  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
  25         struct tm *tm = gmtime(&t);
  26         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
  27                    tm->tm_mday, month[tm->tm_mon], 1900 + tm->tm_year,
  28                    tm->tm_hour, tm->tm_min, tm->tm_sec);
  29 }
  30
  31 void cgit_print_error(const char *fmt, ...)
  32 {
  33         va_list ap;
  34         va_start(ap, fmt);
  35         cgit_vprint_error(fmt, ap);
  36         va_end(ap);
  37 }
  38
  39 void cgit_vprint_error(const char *fmt, va_list ap)
  40 {
  41         va_list cp;
  42         html("<div class='error'>");
  43         va_copy(cp, ap);
  44         html_vtxtf(fmt, cp);
  45         va_end(cp);
  46         html("</div>\n");
  47 }
  48
  49 const char *cgit_httpscheme()
  50 {
  51         if (ctx.env.https && !strcmp(ctx.env.https, "on"))
  52                 return "https://";
  53         else
  54                 return "http://";
  55 }
  56
  57 const char *cgit_hosturl()
  58 {
  59         if (ctx.env.http_host)
  60                 return ctx.env.http_host;
  61         if (!ctx.env.server_name)
  62                 return NULL;
  63         if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
  64                 return ctx.env.server_name;
  65         return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
  66 }
  67
  68 const char *cgit_rooturl()
  69 {
  70         if (ctx.cfg.virtual_root)
  71                 return ctx.cfg.virtual_root;
  72         else
  73                 return ctx.cfg.script_name;
  74 }
  75
  76 char *cgit_repourl(const char *reponame)
  77 {
  78         if (ctx.cfg.virtual_root) {
  79                 return fmt("%s%s/", ctx.cfg.virtual_root, reponame);
  80         } else {
  81                 return fmt("?r=%s", reponame);
  82         }
  83 }
  84
  85 char *cgit_fileurl(const char *reponame, const char *pagename,
  86                    const char *filename, const char *query)
  87 {
  88         char *tmp;
  89         char *delim;
  90
  91         if (ctx.cfg.virtual_root) {
  92                 tmp = fmt("%s%s/%s/%s", ctx.cfg.virtual_root, reponame,
  93                           pagename, (filename ? filename:""));
  94                 delim = "?";
  95         } else {
  96                 tmp = fmt("?url=%s/%s/%s", reponame, pagename,
  97                           (filename ? filename : ""));
  98                 delim = "&amp;";
  99         }
 100         if (query)
 101                 tmp = fmt("%s%s%s", tmp, delim, query);
 102         return tmp;
 103 }
 104
 105 char *cgit_pageurl(const char *reponame, const char *pagename,
 106                    const char *query)
 107 {
 108         return cgit_fileurl(reponame, pagename, 0, query);
 109 }
 110
 111 const char *cgit_repobasename(const char *reponame)
 112 {
 113         /* I assume we don't need to store more than one repo basename */
 114         static char rvbuf[1024];
 115         int p;
 116         const char *rv;
 117         strncpy(rvbuf, reponame, sizeof(rvbuf));
 118         if (rvbuf[sizeof(rvbuf)-1])
 119                 die("cgit_repobasename: truncated repository name '%s'", reponame);
 120         p = strlen(rvbuf)-1;
 121         /* strip trailing slashes */
 122         while (p && rvbuf[p] == '/') rvbuf[p--] = 0;
 123         /* strip trailing .git */
 124         if (p >= 3 && !strncmp(&rvbuf[p-3], ".git", 4)) {
 125                 p -= 3; rvbuf[p--] = 0;
 126         }
 127         /* strip more trailing slashes if any */
 128         while ( p && rvbuf[p] == '/') rvbuf[p--] = 0;
 129         /* find last slash in the remaining string */
 130         rv = strrchr(rvbuf,'/');
 131         if (rv)
 132                 return ++rv;
 133         return rvbuf;
 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         else
 143                 html(ctx.cfg.script_name);
 144
 145         if (page) {
 146                 htmlf("?p=%s", page);
 147                 delim = "&amp;";
 148         }
 149         if (search) {
 150                 html(delim);
 151                 html("q=");
 152                 html_attr(search);
 153                 delim = "&amp;";
 154         }
 155         if (sort) {
 156                 html(delim);
 157                 html("s=");
 158                 html_attr(sort);
 159                 delim = "&amp;";
 160         }
 161         if (ofs) {
 162                 html(delim);
 163                 htmlf("ofs=%d", ofs);
 164         }
 165 }
 166
 167 static void site_link(const char *page, const char *name, const char *title,
 168                       const char *class, const char *search, const char *sort, int ofs)
 169 {
 170         html("<a");
 171         if (title) {
 172                 html(" title='");
 173                 html_attr(title);
 174                 html("'");
 175         }
 176         if (class) {
 177                 html(" class='");
 178                 html_attr(class);
 179                 html("'");
 180         }
 181         html(" href='");
 182         site_url(page, search, sort, ofs);
 183         html("'>");
 184         html_txt(name);
 185         html("</a>");
 186 }
 187
 188 void cgit_index_link(const char *name, const char *title, const char *class,
 189                      const char *pattern, const char *sort, int ofs)
 190 {
 191         site_link(NULL, name, title, class, pattern, sort, ofs);
 192 }
 193
 194 static char *repolink(const char *title, const char *class, const char *page,
 195                       const char *head, const char *path)
 196 {
 197         char *delim = "?";
 198
 199         html("<a");
 200         if (title) {
 201                 html(" title='");
 202                 html_attr(title);
 203                 html("'");
 204         }
 205         if (class) {
 206                 html(" class='");
 207                 html_attr(class);
 208                 html("'");
 209         }
 210         html(" href='");
 211         if (ctx.cfg.virtual_root) {
 212                 html_url_path(ctx.cfg.virtual_root);
 213                 html_url_path(ctx.repo->url);
 214                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 215                         html("/");
 216                 if (page) {
 217                         html_url_path(page);
 218                         html("/");
 219                         if (path)
 220                                 html_url_path(path);
 221                 }
 222         } else {
 223                 html(ctx.cfg.script_name);
 224                 html("?url=");
 225                 html_url_arg(ctx.repo->url);
 226                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 227                         html("/");
 228                 if (page) {
 229                         html_url_arg(page);
 230                         html("/");
 231                         if (path)
 232                                 html_url_arg(path);
 233                 }
 234                 delim = "&amp;";
 235         }
 236         if (head && strcmp(head, ctx.repo->defbranch)) {
 237                 html(delim);
 238                 html("h=");
 239                 html_url_arg(head);
 240                 delim = "&amp;";
 241         }
 242         return fmt("%s", delim);
 243 }
 244
 245 static void reporevlink(const char *page, const char *name, const char *title,
 246                         const char *class, const char *head, const char *rev,
 247                         const char *path)
 248 {
 249         char *delim;
 250
 251         delim = repolink(title, class, page, head, path);
 252         if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
 253                 html(delim);
 254                 html("id=");
 255                 html_url_arg(rev);
 256         }
 257         html("'>");
 258         html_txt(name);
 259         html("</a>");
 260 }
 261
 262 void cgit_summary_link(const char *name, const char *title, const char *class,
 263                        const char *head)
 264 {
 265         reporevlink(NULL, name, title, class, head, NULL, NULL);
 266 }
 267
 268 void cgit_tag_link(const char *name, const char *title, const char *class,
 269                    const char *head, const char *rev)
 270 {
 271         reporevlink("tag", name, title, class, head, rev, NULL);
 272 }
 273
 274 void cgit_tree_link(const char *name, const char *title, const char *class,
 275                     const char *head, const char *rev, const char *path)
 276 {
 277         reporevlink("tree", name, title, class, head, rev, path);
 278 }
 279
 280 void cgit_plain_link(const char *name, const char *title, const char *class,
 281                      const char *head, const char *rev, const char *path)
 282 {
 283         reporevlink("plain", name, title, class, head, rev, path);
 284 }
 285
 286 void cgit_log_link(const char *name, const char *title, const char *class,
 287                    const char *head, const char *rev, const char *path,
 288                    int ofs, const char *grep, const char *pattern, int showmsg)
 289 {
 290         char *delim;
 291
 292         delim = repolink(title, class, "log", head, path);
 293         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 294                 html(delim);
 295                 html("id=");
 296                 html_url_arg(rev);
 297                 delim = "&amp;";
 298         }
 299         if (grep && pattern) {
 300                 html(delim);
 301                 html("qt=");
 302                 html_url_arg(grep);
 303                 delim = "&amp;";
 304                 html(delim);
 305                 html("q=");
 306                 html_url_arg(pattern);
 307         }
 308         if (ofs > 0) {
 309                 html(delim);
 310                 html("ofs=");
 311                 htmlf("%d", ofs);
 312                 delim = "&amp;";
 313         }
 314         if (showmsg) {
 315                 html(delim);
 316                 html("showmsg=1");
 317         }
 318         html("'>");
 319         html_txt(name);
 320         html("</a>");
 321 }
 322
 323 void cgit_commit_link(char *name, const char *title, const char *class,
 324                       const char *head, const char *rev, const char *path,
 325                       int toggle_ssdiff)
 326 {
 327         if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
 328                 name[ctx.cfg.max_msg_len] = '\0';
 329                 name[ctx.cfg.max_msg_len - 1] = '.';
 330                 name[ctx.cfg.max_msg_len - 2] = '.';
 331                 name[ctx.cfg.max_msg_len - 3] = '.';
 332         }
 333
 334         char *delim;
 335
 336         delim = repolink(title, class, "commit", head, path);
 337         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 338                 html(delim);
 339                 html("id=");
 340                 html_url_arg(rev);
 341                 delim = "&amp;";
 342         }
 343         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 344                 html(delim);
 345                 html("ss=1");
 346                 delim = "&amp;";
 347         }
 348         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 349                 html(delim);
 350                 html("context=");
 351                 htmlf("%d", ctx.qry.context);
 352                 delim = "&amp;";
 353         }
 354         if (ctx.qry.ignorews) {
 355                 html(delim);
 356                 html("ignorews=1");
 357                 delim = "&amp;";
 358         }
 359         html("'>");
 360         if (name[0] != '\0')
 361                 html_txt(name);
 362         else
 363                 html_txt("(no commit message)");
 364         html("</a>");
 365 }
 366
 367 void cgit_refs_link(const char *name, const char *title, const char *class,
 368                     const char *head, const char *rev, const char *path)
 369 {
 370         reporevlink("refs", name, title, class, head, rev, path);
 371 }
 372
 373 void cgit_snapshot_link(const char *name, const char *title, const char *class,
 374                         const char *head, const char *rev,
 375                         const char *archivename)
 376 {
 377         reporevlink("snapshot", name, title, class, head, rev, archivename);
 378 }
 379
 380 void cgit_diff_link(const char *name, const char *title, const char *class,
 381                     const char *head, const char *new_rev, const char *old_rev,
 382                     const char *path, int toggle_ssdiff)
 383 {
 384         char *delim;
 385
 386         delim = repolink(title, class, "diff", head, path);
 387         if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
 388                 html(delim);
 389                 html("id=");
 390                 html_url_arg(new_rev);
 391                 delim = "&amp;";
 392         }
 393         if (old_rev) {
 394                 html(delim);
 395                 html("id2=");
 396                 html_url_arg(old_rev);
 397                 delim = "&amp;";
 398         }
 399         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 400                 html(delim);
 401                 html("ss=1");
 402                 delim = "&amp;";
 403         }
 404         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 405                 html(delim);
 406                 html("context=");
 407                 htmlf("%d", ctx.qry.context);
 408                 delim = "&amp;";
 409         }
 410         if (ctx.qry.ignorews) {
 411                 html(delim);
 412                 html("ignorews=1");
 413                 delim = "&amp;";
 414         }
 415         html("'>");
 416         html_txt(name);
 417         html("</a>");
 418 }
 419
 420 void cgit_patch_link(const char *name, const char *title, const char *class,
 421                      const char *head, const char *rev, const char *path)
 422 {
 423         reporevlink("patch", name, title, class, head, rev, path);
 424 }
 425
 426 void cgit_stats_link(const char *name, const char *title, const char *class,
 427                      const char *head, const char *path)
 428 {
 429         reporevlink("stats", name, title, class, head, NULL, path);
 430 }
 431
 432 static void cgit_self_link(char *name, const char *title, const char *class,
 433                            struct cgit_context *ctx)
 434 {
 435         if (!strcmp(ctx->qry.page, "repolist"))
 436                 cgit_index_link(name, title, class, ctx->qry.search, ctx->qry.sort,
 437                                 ctx->qry.ofs);
 438         else if (!strcmp(ctx->qry.page, "summary"))
 439                 cgit_summary_link(name, title, class, ctx->qry.head);
 440         else if (!strcmp(ctx->qry.page, "tag"))
 441                 cgit_tag_link(name, title, class, ctx->qry.head,
 442                               ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
 443         else if (!strcmp(ctx->qry.page, "tree"))
 444                 cgit_tree_link(name, title, class, ctx->qry.head,
 445                                ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 446                                ctx->qry.path);
 447         else if (!strcmp(ctx->qry.page, "plain"))
 448                 cgit_plain_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, "log"))
 452                 cgit_log_link(name, title, class, ctx->qry.head,
 453                               ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 454                               ctx->qry.path, ctx->qry.ofs,
 455                               ctx->qry.grep, ctx->qry.search,
 456                               ctx->qry.showmsg);
 457         else if (!strcmp(ctx->qry.page, "commit"))
 458                 cgit_commit_link(name, title, class, ctx->qry.head,
 459                                  ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 460                                  ctx->qry.path, 0);
 461         else if (!strcmp(ctx->qry.page, "patch"))
 462                 cgit_patch_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, "refs"))
 466                 cgit_refs_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, "snapshot"))
 470                 cgit_snapshot_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, "diff"))
 474                 cgit_diff_link(name, title, class, ctx->qry.head,
 475                                ctx->qry.sha1, ctx->qry.sha2,
 476                                ctx->qry.path, 0);
 477         else if (!strcmp(ctx->qry.page, "stats"))
 478                 cgit_stats_link(name, title, class, ctx->qry.head,
 479                                 ctx->qry.path);
 480         else {
 481                 /* Don't known how to make link for this page */
 482                 repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
 483                 html("><!-- cgit_self_link() doesn't know how to make link for page '");
 484                 html_txt(ctx->qry.page);
 485                 html("' -->");
 486                 html_txt(name);
 487                 html("</a>");
 488         }
 489 }
 490
 491 void cgit_object_link(struct object *obj)
 492 {
 493         char *page, *shortrev, *fullrev, *name;
 494
 495         fullrev = sha1_to_hex(obj->sha1);
 496         shortrev = xstrdup(fullrev);
 497         shortrev[10] = '\0';
 498         if (obj->type == OBJ_COMMIT) {
 499                 cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
 500                                  ctx.qry.head, fullrev, NULL, 0);
 501                 return;
 502         } else if (obj->type == OBJ_TREE)
 503                 page = "tree";
 504         else if (obj->type == OBJ_TAG)
 505                 page = "tag";
 506         else
 507                 page = "blob";
 508         name = fmt("%s %s...", typename(obj->type), shortrev);
 509         reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 510 }
 511
 512 static struct string_list_item *lookup_path(struct string_list *list,
 513                                             const char *path)
 514 {
 515         struct string_list_item *item;
 516
 517         while (path && path[0]) {
 518                 if ((item = string_list_lookup(list, path)))
 519                         return item;
 520                 if (!(path = strchr(path, '/')))
 521                         break;
 522                 path++;
 523         }
 524         return NULL;
 525 }
 526
 527 void cgit_submodule_link(const char *class, char *path, const char *rev)
 528 {
 529         struct string_list *list;
 530         struct string_list_item *item;
 531         char tail, *dir;
 532         size_t len;
 533
 534         len = 0;
 535         tail = 0;
 536         list = &ctx.repo->submodules;
 537         item = lookup_path(list, path);
 538         if (!item) {
 539                 len = strlen(path);
 540                 tail = path[len - 1];
 541                 if (tail == '/') {
 542                         path[len - 1] = 0;
 543                         item = lookup_path(list, path);
 544                 }
 545         }
 546         html("<a ");
 547         if (class)
 548                 htmlf("class='%s' ", class);
 549         html("href='");
 550         if (item) {
 551                 html_attr(fmt(item->util, rev));
 552         } else if (ctx.repo->module_link) {
 553                 dir = strrchr(path, '/');
 554                 if (dir)
 555                         dir++;
 556                 else
 557                         dir = path;
 558                 html_attr(fmt(ctx.repo->module_link, dir, rev));
 559         } else {
 560                 html("#");
 561         }
 562         html("'>");
 563         html_txt(path);
 564         html("</a>");
 565         html_txt(fmt(" @ %.7s", rev));
 566         if (item && tail)
 567                 path[len - 1] = tail;
 568 }
 569
 570 void cgit_print_date(time_t secs, const char *format, int local_time)
 571 {
 572         char buf[64];
 573         struct tm *time;
 574
 575         if (!secs)
 576                 return;
 577         if (local_time)
 578                 time = localtime(&secs);
 579         else
 580                 time = gmtime(&secs);
 581         strftime(buf, sizeof(buf)-1, format, time);
 582         html_txt(buf);
 583 }
 584
 585 void cgit_print_age(time_t t, time_t max_relative, const char *format)
 586 {
 587         time_t now, secs;
 588
 589         if (!t)
 590                 return;
 591         time(&now);
 592         secs = now - t;
 593
 594         if (secs > max_relative && max_relative >= 0) {
 595                 cgit_print_date(t, format, ctx.cfg.local_time);
 596                 return;
 597         }
 598
 599         if (secs < TM_HOUR * 2) {
 600                 htmlf("<span class='age-mins'>%.0f min.</span>",
 601                       secs * 1.0 / TM_MIN);
 602                 return;
 603         }
 604         if (secs < TM_DAY * 2) {
 605                 htmlf("<span class='age-hours'>%.0f hours</span>",
 606                       secs * 1.0 / TM_HOUR);
 607                 return;
 608         }
 609         if (secs < TM_WEEK * 2) {
 610                 htmlf("<span class='age-days'>%.0f days</span>",
 611                       secs * 1.0 / TM_DAY);
 612                 return;
 613         }
 614         if (secs < TM_MONTH * 2) {
 615                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 616                       secs * 1.0 / TM_WEEK);
 617                 return;
 618         }
 619         if (secs < TM_YEAR * 2) {
 620                 htmlf("<span class='age-months'>%.0f months</span>",
 621                       secs * 1.0 / TM_MONTH);
 622                 return;
 623         }
 624         htmlf("<span class='age-years'>%.0f years</span>",
 625               secs * 1.0 / TM_YEAR);
 626 }
 627
 628 void cgit_print_http_headers(struct cgit_context *ctx)
 629 {
 630         if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
 631                 return;
 632
 633         if (ctx->page.status)
 634                 htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
 635         if (ctx->page.mimetype && ctx->page.charset)
 636                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
 637                       ctx->page.charset);
 638         else if (ctx->page.mimetype)
 639                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
 640         if (ctx->page.size)
 641                 htmlf("Content-Length: %zd\n", ctx->page.size);
 642         if (ctx->page.filename)
 643                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
 644                       ctx->page.filename);
 645         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
 646         htmlf("Expires: %s\n", http_date(ctx->page.expires));
 647         if (ctx->page.etag)
 648                 htmlf("ETag: \"%s\"\n", ctx->page.etag);
 649         html("\n");
 650         if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
 651                 exit(0);
 652 }
 653
 654 void cgit_print_docstart(struct cgit_context *ctx)
 655 {
 656         if (ctx->cfg.embedded) {
 657                 if (ctx->cfg.header)
 658                         html_include(ctx->cfg.header);
 659                 return;
 660         }
 661
 662         const char *host = cgit_hosturl();
 663         html(cgit_doctype);
 664         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 665         html("<head>\n");
 666         html("<title>");
 667         html_txt(ctx->page.title);
 668         html("</title>\n");
 669         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 670         if (ctx->cfg.robots && *ctx->cfg.robots)
 671                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
 672         html("<link rel='stylesheet' type='text/css' href='");
 673         html_attr(ctx->cfg.css);
 674         html("'/>\n");
 675         if (ctx->cfg.favicon) {
 676                 html("<link rel='shortcut icon' href='");
 677                 html_attr(ctx->cfg.favicon);
 678                 html("'/>\n");
 679         }
 680         if (host && ctx->repo && ctx->qry.head) {
 681                 html("<link rel='alternate' title='Atom feed' href='");
 682                 html(cgit_httpscheme());
 683                 html_attr(cgit_hosturl());
 684                 html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
 685                                        fmt("h=%s", ctx->qry.head)));
 686                 html("' type='application/atom+xml'/>\n");
 687         }
 688         if (ctx->cfg.head_include)
 689                 html_include(ctx->cfg.head_include);
 690         html("</head>\n");
 691         html("<body>\n");
 692         if (ctx->cfg.header)
 693                 html_include(ctx->cfg.header);
 694 }
 695
 696 void cgit_print_docend()
 697 {
 698         html("</div> <!-- class=content -->\n");
 699         if (ctx.cfg.embedded) {
 700                 html("</div> <!-- id=cgit -->\n");
 701                 if (ctx.cfg.footer)
 702                         html_include(ctx.cfg.footer);
 703                 return;
 704         }
 705         if (ctx.cfg.footer)
 706                 html_include(ctx.cfg.footer);
 707         else {
 708                 htmlf("<div class='footer'>generated  by cgit %s at ",
 709                         cgit_version);
 710                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
 711                 html("</div>\n");
 712         }
 713         html("</div> <!-- id=cgit -->\n");
 714         html("</body>\n</html>\n");
 715 }
 716
 717 static int print_branch_option(const char *refname, const unsigned char *sha1,
 718                                int flags, void *cb_data)
 719 {
 720         char *name = (char *)refname;
 721         html_option(name, name, ctx.qry.head);
 722         return 0;
 723 }
 724
 725 void cgit_add_hidden_formfields(int incl_head, int incl_search,
 726                                 const char *page)
 727 {
 728         char *url;
 729
 730         if (!ctx.cfg.virtual_root) {
 731                 url = fmt("%s/%s", ctx.qry.repo, page);
 732                 if (ctx.qry.vpath)
 733                         url = fmt("%s/%s", url, ctx.qry.vpath);
 734                 html_hidden("url", url);
 735         }
 736
 737         if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
 738             strcmp(ctx.qry.head, ctx.repo->defbranch))
 739                 html_hidden("h", ctx.qry.head);
 740
 741         if (ctx.qry.sha1)
 742                 html_hidden("id", ctx.qry.sha1);
 743         if (ctx.qry.sha2)
 744                 html_hidden("id2", ctx.qry.sha2);
 745         if (ctx.qry.showmsg)
 746                 html_hidden("showmsg", "1");
 747
 748         if (incl_search) {
 749                 if (ctx.qry.grep)
 750                         html_hidden("qt", ctx.qry.grep);
 751                 if (ctx.qry.search)
 752                         html_hidden("q", ctx.qry.search);
 753         }
 754 }
 755
 756 static const char *hc(struct cgit_context *ctx, const char *page)
 757 {
 758         return strcmp(ctx->qry.page, page) ? NULL : "active";
 759 }
 760
 761 static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
 762 {
 763         char *old_path = ctx->qry.path;
 764         char *p = path, *q, *end = path + strlen(path);
 765
 766         ctx->qry.path = NULL;
 767         cgit_self_link("root", NULL, NULL, ctx);
 768         ctx->qry.path = p = path;
 769         while (p < end) {
 770                 if (!(q = strchr(p, '/')))
 771                         q = end;
 772                 *q = '\0';
 773                 html_txt("/");
 774                 cgit_self_link(p, NULL, NULL, ctx);
 775                 if (q < end)
 776                         *q = '/';
 777                 p = q + 1;
 778         }
 779         ctx->qry.path = old_path;
 780 }
 781
 782 static void print_header(struct cgit_context *ctx)
 783 {
 784         char *logo = NULL, *logo_link = NULL;
 785
 786         html("<table id='header'>\n");
 787         html("<tr>\n");
 788
 789         if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
 790                 logo = ctx->repo->logo;
 791         else
 792                 logo = ctx->cfg.logo;
 793         if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
 794                 logo_link = ctx->repo->logo_link;
 795         else
 796                 logo_link = ctx->cfg.logo_link;
 797         if (logo && *logo) {
 798                 html("<td class='logo' rowspan='2'><a href='");
 799                 if (logo_link && *logo_link)
 800                         html_attr(logo_link);
 801                 else
 802                         html_attr(cgit_rooturl());
 803                 html("'><img src='");
 804                 html_attr(logo);
 805                 html("' alt='cgit logo'/></a></td>\n");
 806         }
 807
 808         html("<td class='main'>");
 809         if (ctx->repo) {
 810                 cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 811                 html(" : ");
 812                 cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
 813                 html("</td><td class='form'>");
 814                 html("<form method='get' action=''>\n");
 815                 cgit_add_hidden_formfields(0, 1, ctx->qry.page);
 816                 html("<select name='h' onchange='this.form.submit();'>\n");
 817                 for_each_branch_ref(print_branch_option, ctx->qry.head);
 818                 html("</select> ");
 819                 html("<input type='submit' name='' value='switch'/>");
 820                 html("</form>");
 821         } else
 822                 html_txt(ctx->cfg.root_title);
 823         html("</td></tr>\n");
 824
 825         html("<tr><td class='sub'>");
 826         if (ctx->repo) {
 827                 html_txt(ctx->repo->desc);
 828                 html("</td><td class='sub right'>");
 829                 html_txt(ctx->repo->owner);
 830         } else {
 831                 if (ctx->cfg.root_desc)
 832                         html_txt(ctx->cfg.root_desc);
 833                 else if (ctx->cfg.index_info)
 834                         html_include(ctx->cfg.index_info);
 835         }
 836         html("</td></tr></table>\n");
 837 }
 838
 839 void cgit_print_pageheader(struct cgit_context *ctx)
 840 {
 841         html("<div id='cgit'>");
 842         if (!ctx->cfg.noheader)
 843                 print_header(ctx);
 844
 845         html("<table class='tabs'><tr><td>\n");
 846         if (ctx->repo) {
 847                 cgit_summary_link("summary", NULL, hc(ctx, "summary"),
 848                                   ctx->qry.head);
 849                 cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
 850                                ctx->qry.sha1, NULL);
 851                 cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
 852                               NULL, ctx->qry.vpath, 0, NULL, NULL,
 853                               ctx->qry.showmsg);
 854                 cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
 855                                ctx->qry.sha1, ctx->qry.vpath);
 856                 cgit_commit_link("commit", NULL, hc(ctx, "commit"),
 857                                  ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
 858                 cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
 859                                ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
 860                 if (ctx->repo->max_stats)
 861                         cgit_stats_link("stats", NULL, hc(ctx, "stats"),
 862                                         ctx->qry.head, ctx->qry.vpath);
 863                 if (ctx->repo->readme)
 864                         reporevlink("about", "about", NULL,
 865                                     hc(ctx, "about"), ctx->qry.head, NULL,
 866                                     NULL);
 867                 html("</td><td class='form'>");
 868                 html("<form class='right' method='get' action='");
 869                 if (ctx->cfg.virtual_root)
 870                         html_url_path(cgit_fileurl(ctx->qry.repo, "log",
 871                                                    ctx->qry.vpath, NULL));
 872                 html("'>\n");
 873                 cgit_add_hidden_formfields(1, 0, "log");
 874                 html("<select name='qt'>\n");
 875                 html_option("grep", "log msg", ctx->qry.grep);
 876                 html_option("author", "author", ctx->qry.grep);
 877                 html_option("committer", "committer", ctx->qry.grep);
 878                 html_option("range", "range", ctx->qry.grep);
 879                 html("</select>\n");
 880                 html("<input class='txt' type='text' size='10' name='q' value='");
 881                 html_attr(ctx->qry.search);
 882                 html("'/>\n");
 883                 html("<input type='submit' value='search'/>\n");
 884                 html("</form>\n");
 885         } else {
 886                 site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
 887                 if (ctx->cfg.root_readme)
 888                         site_link("about", "about", NULL, hc(ctx, "about"),
 889                                   NULL, NULL, 0);
 890                 html("</td><td class='form'>");
 891                 html("<form method='get' action='");
 892                 html_attr(cgit_rooturl());
 893                 html("'>\n");
 894                 html("<input type='text' name='q' size='10' value='");
 895                 html_attr(ctx->qry.search);
 896                 html("'/>\n");
 897                 html("<input type='submit' value='search'/>\n");
 898                 html("</form>");
 899         }
 900         html("</td></tr></table>\n");
 901         if (ctx->qry.vpath) {
 902                 html("<div class='path'>");
 903                 html("path: ");
 904                 cgit_print_path_crumbs(ctx, ctx->qry.vpath);
 905                 html("</div>");
 906         }
 907         html("<div class='content'>");
 908 }
 909
 910 void cgit_print_filemode(unsigned short mode)
 911 {
 912         if (S_ISDIR(mode))
 913                 html("d");
 914         else if (S_ISLNK(mode))
 915                 html("l");
 916         else if (S_ISGITLINK(mode))
 917                 html("m");
 918         else
 919                 html("-");
 920         html_fileperm(mode >> 6);
 921         html_fileperm(mode >> 3);
 922         html_fileperm(mode);
 923 }
 924
 925 void cgit_print_snapshot_links(const char *repo, const char *head,
 926                                const char *hex, int snapshots)
 927 {
 928         const struct cgit_snapshot_format* f;
 929         char *prefix;
 930         char *filename;
 931         unsigned char sha1[20];
 932
 933         if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
 934             (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
 935                 hex++;
 936         prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
 937         for (f = cgit_snapshot_formats; f->suffix; f++) {
 938                 if (!(snapshots & f->bit))
 939                         continue;
 940                 filename = fmt("%s%s", prefix, f->suffix);
 941                 cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
 942                 html("<br/>");
 943         }
 944         free(prefix);
 945 }