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 = "&";
  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 = "&";
 150         }
 151         if (search) {
 152                 html(delim);
 153                 html("q=");
 154                 html_attr(search);
 155                 delim = "&";
 156         }
 157         if (sort) {
 158                 html(delim);
 159                 html("s=");
 160                 html_attr(sort);
 161                 delim = "&";
 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 = "&";
 302         }
 303         if (grep && pattern) {
 304                 html(delim);
 305                 html("qt=");
 306                 html_url_arg(grep);
 307                 delim = "&";
 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 = "&";
 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         html_txt(name);
 365         html("</a>");
 366 }
 367
 368 void cgit_refs_link(const char *name, const char *title, const char *class,
 369                     const char *head, const char *rev, const char *path)
 370 {
 371         reporevlink("refs", name, title, class, head, rev, path);
 372 }
 373
 374 void cgit_snapshot_link(const char *name, const char *title, const char *class,
 375                         const char *head, const char *rev,
 376                         const char *archivename)
 377 {
 378         reporevlink("snapshot", name, title, class, head, rev, archivename);
 379 }
 380
 381 void cgit_diff_link(const char *name, const char *title, const char *class,
 382                     const char *head, const char *new_rev, const char *old_rev,
 383                     const char *path, int toggle_ssdiff)
 384 {
 385         char *delim;
 386
 387         delim = repolink(title, class, "diff", head, path);
 388         if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
 389                 html(delim);
 390                 html("id=");
 391                 html_url_arg(new_rev);
 392                 delim = "&amp;";
 393         }
 394         if (old_rev) {
 395                 html(delim);
 396                 html("id2=");
 397                 html_url_arg(old_rev);
 398                 delim = "&amp;";
 399         }
 400         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 401                 html(delim);
 402                 html("ss=1");
 403                 delim = "&amp;";
 404         }
 405         if (ctx.qry.context > 0 && ctx.qry.context != 3) {
 406                 html(delim);
 407                 html("context=");
 408                 htmlf("%d", ctx.qry.context);
 409                 delim = "&amp;";
 410         }
 411         if (ctx.qry.ignorews) {
 412                 html(delim);
 413                 html("ignorews=1");
 414                 delim = "&amp;";
 415         }
 416         html("'>");
 417         html_txt(name);
 418         html("</a>");
 419 }
 420
 421 void cgit_patch_link(const char *name, const char *title, const char *class,
 422                      const char *head, const char *rev, const char *path)
 423 {
 424         reporevlink("patch", name, title, class, head, rev, path);
 425 }
 426
 427 void cgit_stats_link(const char *name, const char *title, const char *class,
 428                      const char *head, const char *path)
 429 {
 430         reporevlink("stats", name, title, class, head, NULL, path);
 431 }
 432
 433 void cgit_self_link(char *name, const char *title, const char *class,
 434                     struct cgit_context *ctx)
 435 {
 436         if (!strcmp(ctx->qry.page, "repolist"))
 437                 return cgit_index_link(name, title, class, ctx->qry.search, ctx->qry.sort,
 438                                        ctx->qry.ofs);
 439         else if (!strcmp(ctx->qry.page, "summary"))
 440                 return cgit_summary_link(name, title, class, ctx->qry.head);
 441         else if (!strcmp(ctx->qry.page, "tag"))
 442                 return cgit_tag_link(name, title, class, ctx->qry.head,
 443                                      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
 444         else if (!strcmp(ctx->qry.page, "tree"))
 445                 return cgit_tree_link(name, title, class, ctx->qry.head,
 446                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 447                                       ctx->qry.path);
 448         else if (!strcmp(ctx->qry.page, "plain"))
 449                 return cgit_plain_link(name, title, class, ctx->qry.head,
 450                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 451                                       ctx->qry.path);
 452         else if (!strcmp(ctx->qry.page, "log"))
 453                 return cgit_log_link(name, title, class, ctx->qry.head,
 454                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 455                                       ctx->qry.path, ctx->qry.ofs,
 456                                       ctx->qry.grep, ctx->qry.search,
 457                                       ctx->qry.showmsg);
 458         else if (!strcmp(ctx->qry.page, "commit"))
 459                 return cgit_commit_link(name, title, class, ctx->qry.head,
 460                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 461                                       ctx->qry.path, 0);
 462         else if (!strcmp(ctx->qry.page, "patch"))
 463                 return cgit_patch_link(name, title, class, ctx->qry.head,
 464                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 465                                       ctx->qry.path);
 466         else if (!strcmp(ctx->qry.page, "refs"))
 467                 return cgit_refs_link(name, title, class, ctx->qry.head,
 468                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 469                                       ctx->qry.path);
 470         else if (!strcmp(ctx->qry.page, "snapshot"))
 471                 return cgit_snapshot_link(name, title, class, ctx->qry.head,
 472                                       ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
 473                                       ctx->qry.path);
 474         else if (!strcmp(ctx->qry.page, "diff"))
 475                 return cgit_diff_link(name, title, class, ctx->qry.head,
 476                                       ctx->qry.sha1, ctx->qry.sha2,
 477                                       ctx->qry.path, 0);
 478         else if (!strcmp(ctx->qry.page, "stats"))
 479                 return cgit_stats_link(name, title, class, ctx->qry.head,
 480                                       ctx->qry.path);
 481
 482         /* Don't known how to make link for this page */
 483         repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
 484         html("><!-- cgit_self_link() doesn't know how to make link for page '");
 485         html_txt(ctx->qry.page);
 486         html("' -->");
 487         html_txt(name);
 488         html("</a>");
 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 void cgit_print_date(time_t secs, const char *format, int local_time)
 513 {
 514         char buf[64];
 515         struct tm *time;
 516
 517         if (!secs)
 518                 return;
 519         if(local_time)
 520                 time = localtime(&secs);
 521         else
 522                 time = gmtime(&secs);
 523         strftime(buf, sizeof(buf)-1, format, time);
 524         html_txt(buf);
 525 }
 526
 527 void cgit_print_age(time_t t, time_t max_relative, const char *format)
 528 {
 529         time_t now, secs;
 530
 531         if (!t)
 532                 return;
 533         time(&now);
 534         secs = now - t;
 535
 536         if (secs > max_relative && max_relative >= 0) {
 537                 cgit_print_date(t, format, ctx.cfg.local_time);
 538                 return;
 539         }
 540
 541         if (secs < TM_HOUR * 2) {
 542                 htmlf("<span class='age-mins'>%.0f min.</span>",
 543                       secs * 1.0 / TM_MIN);
 544                 return;
 545         }
 546         if (secs < TM_DAY * 2) {
 547                 htmlf("<span class='age-hours'>%.0f hours</span>",
 548                       secs * 1.0 / TM_HOUR);
 549                 return;
 550         }
 551         if (secs < TM_WEEK * 2) {
 552                 htmlf("<span class='age-days'>%.0f days</span>",
 553                       secs * 1.0 / TM_DAY);
 554                 return;
 555         }
 556         if (secs < TM_MONTH * 2) {
 557                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 558                       secs * 1.0 / TM_WEEK);
 559                 return;
 560         }
 561         if (secs < TM_YEAR * 2) {
 562                 htmlf("<span class='age-months'>%.0f months</span>",
 563                       secs * 1.0 / TM_MONTH);
 564                 return;
 565         }
 566         htmlf("<span class='age-years'>%.0f years</span>",
 567               secs * 1.0 / TM_YEAR);
 568 }
 569
 570 void cgit_print_http_headers(struct cgit_context *ctx)
 571 {
 572         if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
 573                 return;
 574
 575         if (ctx->page.status)
 576                 htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
 577         if (ctx->page.mimetype && ctx->page.charset)
 578                 htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
 579                       ctx->page.charset);
 580         else if (ctx->page.mimetype)
 581                 htmlf("Content-Type: %s\n", ctx->page.mimetype);
 582         if (ctx->page.size)
 583                 htmlf("Content-Length: %zd\n", ctx->page.size);
 584         if (ctx->page.filename)
 585                 htmlf("Content-Disposition: inline; filename=\"%s\"\n",
 586                       ctx->page.filename);
 587         htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
 588         htmlf("Expires: %s\n", http_date(ctx->page.expires));
 589         if (ctx->page.etag)
 590                 htmlf("ETag: \"%s\"\n", ctx->page.etag);
 591         html("\n");
 592         if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
 593                 exit(0);
 594 }
 595
 596 void cgit_print_docstart(struct cgit_context *ctx)
 597 {
 598         if (ctx->cfg.embedded) {
 599                 if (ctx->cfg.header)
 600                         html_include(ctx->cfg.header);
 601                 return;
 602         }
 603
 604         char *host = cgit_hosturl();
 605         html(cgit_doctype);
 606         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 607         html("<head>\n");
 608         html("<title>");
 609         html_txt(ctx->page.title);
 610         html("</title>\n");
 611         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 612         if (ctx->cfg.robots && *ctx->cfg.robots)
 613                 htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
 614         html("<link rel='stylesheet' type='text/css' href='");
 615         html_attr(ctx->cfg.css);
 616         html("'/>\n");
 617         if (ctx->cfg.favicon) {
 618                 html("<link rel='shortcut icon' href='");
 619                 html_attr(ctx->cfg.favicon);
 620                 html("'/>\n");
 621         }
 622         if (host && ctx->repo && ctx->qry.head) {
 623                 html("<link rel='alternate' title='Atom feed' href='");
 624                 html(cgit_httpscheme());
 625                 html_attr(cgit_hosturl());
 626                 html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
 627                                        fmt("h=%s", ctx->qry.head)));
 628                 html("' type='application/atom+xml'/>\n");
 629         }
 630         if (ctx->cfg.head_include)
 631                 html_include(ctx->cfg.head_include);
 632         html("</head>\n");
 633         html("<body>\n");
 634         if (ctx->cfg.header)
 635                 html_include(ctx->cfg.header);
 636 }
 637
 638 void cgit_print_docend()
 639 {
 640         html("</div> <!-- class=content -->\n");
 641         if (ctx.cfg.embedded) {
 642                 html("</div> <!-- id=cgit -->\n");
 643                 if (ctx.cfg.footer)
 644                         html_include(ctx.cfg.footer);
 645                 return;
 646         }
 647         if (ctx.cfg.footer)
 648                 html_include(ctx.cfg.footer);
 649         else {
 650                 htmlf("<div class='footer'>generated  by cgit %s at ",
 651                         cgit_version);
 652                 cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
 653                 html("</div>\n");
 654         }
 655         html("</div> <!-- id=cgit -->\n");
 656         html("</body>\n</html>\n");
 657 }
 658
 659 int print_branch_option(const char *refname, const unsigned char *sha1,
 660                         int flags, void *cb_data)
 661 {
 662         char *name = (char *)refname;
 663         html_option(name, name, ctx.qry.head);
 664         return 0;
 665 }
 666
 667 int print_archive_ref(const char *refname, const unsigned char *sha1,
 668                        int flags, void *cb_data)
 669 {
 670         struct tag *tag;
 671         struct taginfo *info;
 672         struct object *obj;
 673         char buf[256], *url;
 674         unsigned char fileid[20];
 675         int *header = (int *)cb_data;
 676
 677         if (prefixcmp(refname, "refs/archives"))
 678                 return 0;
 679         strncpy(buf, refname+14, sizeof(buf));
 680         obj = parse_object(sha1);
 681         if (!obj)
 682                 return 1;
 683         if (obj->type == OBJ_TAG) {
 684                 tag = lookup_tag(sha1);
 685                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 686                         return 0;
 687                 hashcpy(fileid, tag->tagged->sha1);
 688         } else if (obj->type != OBJ_BLOB) {
 689                 return 0;
 690         } else {
 691                 hashcpy(fileid, sha1);
 692         }
 693         if (!*header) {
 694                 html("<h1>download</h1>\n");
 695                 *header = 1;
 696         }
 697         url = cgit_pageurl(ctx.qry.repo, "blob",
 698                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
 699                                buf));
 700         html_link_open(url, NULL, "menu");
 701         html_txt(strlpart(buf, 20));
 702         html_link_close();
 703         return 0;
 704 }
 705
 706 void cgit_add_hidden_formfields(int incl_head, int incl_search,
 707                                 const char *page)
 708 {
 709         char *url;
 710
 711         if (!ctx.cfg.virtual_root) {
 712                 url = fmt("%s/%s", ctx.qry.repo, page);
 713                 if (ctx.qry.vpath)
 714                         url = fmt("%s/%s", url, ctx.qry.vpath);
 715                 html_hidden("url", url);
 716         }
 717
 718         if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
 719             strcmp(ctx.qry.head, ctx.repo->defbranch))
 720                 html_hidden("h", ctx.qry.head);
 721
 722         if (ctx.qry.sha1)
 723                 html_hidden("id", ctx.qry.sha1);
 724         if (ctx.qry.sha2)
 725                 html_hidden("id2", ctx.qry.sha2);
 726         if (ctx.qry.showmsg)
 727                 html_hidden("showmsg", "1");
 728
 729         if (incl_search) {
 730                 if (ctx.qry.grep)
 731                         html_hidden("qt", ctx.qry.grep);
 732                 if (ctx.qry.search)
 733                         html_hidden("q", ctx.qry.search);
 734         }
 735 }
 736
 737 static const char *hc(struct cgit_context *ctx, const char *page)
 738 {
 739         return strcmp(ctx->qry.page, page) ? NULL : "active";
 740 }
 741
 742 static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
 743 {
 744         char *old_path = ctx->qry.path;
 745         char *p = path, *q, *end = path + strlen(path);
 746
 747         ctx->qry.path = NULL;
 748         cgit_self_link("root", NULL, NULL, ctx);
 749         ctx->qry.path = p = path;
 750         while (p < end) {
 751                 if (!(q = strchr(p, '/')))
 752                         q = end;
 753                 *q = '\0';
 754                 html_txt("/");
 755                 cgit_self_link(p, NULL, NULL, ctx);
 756                 if (q < end)
 757                         *q = '/';
 758                 p = q + 1;
 759         }
 760         ctx->qry.path = old_path;
 761 }
 762
 763 static void print_header(struct cgit_context *ctx)
 764 {
 765         char *logo = NULL, *logo_link = NULL;
 766
 767         html("<table id='header'>\n");
 768         html("<tr>\n");
 769
 770         if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
 771                 logo = ctx->repo->logo;
 772         else
 773                 logo = ctx->cfg.logo;
 774         if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
 775                 logo_link = ctx->repo->logo_link;
 776         else
 777                 logo_link = ctx->cfg.logo_link;
 778         if (logo && *logo) {
 779                 html("<td class='logo' rowspan='2'><a href='");
 780                 if (logo_link && *logo_link)
 781                         html_attr(logo_link);
 782                 else
 783                         html_attr(cgit_rooturl());
 784                 html("'><img src='");
 785                 html_attr(logo);
 786                 html("' alt='cgit logo'/></a></td>\n");
 787         }
 788
 789         html("<td class='main'>");
 790         if (ctx->repo) {
 791                 cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 792                 html(" : ");
 793                 cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
 794                 html("</td><td class='form'>");
 795                 html("<form method='get' action=''>\n");
 796                 cgit_add_hidden_formfields(0, 1, ctx->qry.page);
 797                 html("<select name='h' onchange='this.form.submit();'>\n");
 798                 for_each_branch_ref(print_branch_option, ctx->qry.head);
 799                 html("</select> ");
 800                 html("<input type='submit' name='' value='switch'/>");
 801                 html("</form>");
 802         } else
 803                 html_txt(ctx->cfg.root_title);
 804         html("</td></tr>\n");
 805
 806         html("<tr><td class='sub'>");
 807         if (ctx->repo) {
 808                 html_txt(ctx->repo->desc);
 809                 html("</td><td class='sub right'>");
 810                 html_txt(ctx->repo->owner);
 811         } else {
 812                 if (ctx->cfg.root_desc)
 813                         html_txt(ctx->cfg.root_desc);
 814                 else if (ctx->cfg.index_info)
 815                         html_include(ctx->cfg.index_info);
 816         }
 817         html("</td></tr></table>\n");
 818 }
 819
 820 void cgit_print_pageheader(struct cgit_context *ctx)
 821 {
 822         html("<div id='cgit'>");
 823         if (!ctx->cfg.noheader)
 824                 print_header(ctx);
 825
 826         html("<table class='tabs'><tr><td>\n");
 827         if (ctx->repo) {
 828                 cgit_summary_link("summary", NULL, hc(ctx, "summary"),
 829                                   ctx->qry.head);
 830                 cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
 831                                ctx->qry.sha1, NULL);
 832                 cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
 833                               NULL, ctx->qry.vpath, 0, NULL, NULL,
 834                               ctx->qry.showmsg);
 835                 cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
 836                                ctx->qry.sha1, ctx->qry.vpath);
 837                 cgit_commit_link("commit", NULL, hc(ctx, "commit"),
 838                                  ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
 839                 cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
 840                                ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
 841                 if (ctx->repo->max_stats)
 842                         cgit_stats_link("stats", NULL, hc(ctx, "stats"),
 843                                         ctx->qry.head, ctx->qry.vpath);
 844                 if (ctx->repo->readme)
 845                         reporevlink("about", "about", NULL,
 846                                     hc(ctx, "about"), ctx->qry.head, NULL,
 847                                     NULL);
 848                 html("</td><td class='form'>");
 849                 html("<form class='right' method='get' action='");
 850                 if (ctx->cfg.virtual_root)
 851                         html_url_path(cgit_fileurl(ctx->qry.repo, "log",
 852                                                    ctx->qry.vpath, NULL));
 853                 html("'>\n");
 854                 cgit_add_hidden_formfields(1, 0, "log");
 855                 html("<select name='qt'>\n");
 856                 html_option("grep", "log msg", ctx->qry.grep);
 857                 html_option("author", "author", ctx->qry.grep);
 858                 html_option("committer", "committer", ctx->qry.grep);
 859                 html_option("range", "range", ctx->qry.grep);
 860                 html("</select>\n");
 861                 html("<input class='txt' type='text' size='10' name='q' value='");
 862                 html_attr(ctx->qry.search);
 863                 html("'/>\n");
 864                 html("<input type='submit' value='search'/>\n");
 865                 html("</form>\n");
 866         } else {
 867                 site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
 868                 if (ctx->cfg.root_readme)
 869                         site_link("about", "about", NULL, hc(ctx, "about"),
 870                                   NULL, NULL, 0);
 871                 html("</td><td class='form'>");
 872                 html("<form method='get' action='");
 873                 html_attr(cgit_rooturl());
 874                 html("'>\n");
 875                 html("<input type='text' name='q' size='10' value='");
 876                 html_attr(ctx->qry.search);
 877                 html("'/>\n");
 878                 html("<input type='submit' value='search'/>\n");
 879                 html("</form>");
 880         }
 881         html("</td></tr></table>\n");
 882         if (ctx->qry.vpath) {
 883                 html("<div class='path'>");
 884                 html("path: ");
 885                 cgit_print_path_crumbs(ctx, ctx->qry.vpath);
 886                 html("</div>");
 887         }
 888         html("<div class='content'>");
 889 }
 890
 891 void cgit_print_filemode(unsigned short mode)
 892 {
 893         if (S_ISDIR(mode))
 894                 html("d");
 895         else if (S_ISLNK(mode))
 896                 html("l");
 897         else if (S_ISGITLINK(mode))
 898                 html("m");
 899         else
 900                 html("-");
 901         html_fileperm(mode >> 6);
 902         html_fileperm(mode >> 3);
 903         html_fileperm(mode);
 904 }
 905
 906 void cgit_print_snapshot_links(const char *repo, const char *head,
 907                                const char *hex, int snapshots)
 908 {
 909         const struct cgit_snapshot_format* f;
 910         char *prefix;
 911         char *filename;
 912         unsigned char sha1[20];
 913
 914         if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
 915             (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
 916                 hex++;
 917         prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
 918         for (f = cgit_snapshot_formats; f->suffix; f++) {
 919                 if (!(snapshots & f->bit))
 920                         continue;
 921                 filename = fmt("%s%s", prefix, f->suffix);
 922                 cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
 923                 html("<br/>");
 924         }
 925 }