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
  11 const char cgit_doctype[] =
  12 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
  13 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
  14
  15 static char *http_date(time_t t)
  16 {
  17         static char day[][4] =
  18                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
  19         static char month[][4] =
  20                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
  21                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
  22         struct tm *tm = gmtime(&t);
  23         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
  24                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
  25                    tm->tm_hour, tm->tm_min, tm->tm_sec);
  26 }
  27
  28 static long ttl_seconds(long ttl)
  29 {
  30         if (ttl<0)
  31                 return 60 * 60 * 24 * 365;
  32         else
  33                 return ttl * 60;
  34 }
  35
  36 void cgit_print_error(char *msg)
  37 {
  38         html("<div class='error'>");
  39         html_txt(msg);
  40         html("</div>\n");
  41 }
  42
  43 char *cgit_rooturl()
  44 {
  45         if (cgit_virtual_root)
  46                 return fmt("%s/", cgit_virtual_root);
  47         else
  48                 return cgit_script_name;
  49 }
  50
  51 char *cgit_repourl(const char *reponame)
  52 {
  53         if (cgit_virtual_root) {
  54                 return fmt("%s/%s/", cgit_virtual_root, reponame);
  55         } else {
  56                 return fmt("?r=%s", reponame);
  57         }
  58 }
  59
  60 char *cgit_fileurl(const char *reponame, const char *pagename,
  61                    const char *filename, const char *query)
  62 {
  63         char *tmp;
  64         char *delim;
  65
  66         if (cgit_virtual_root) {
  67                 tmp = fmt("%s/%s/%s/%s", cgit_virtual_root, reponame,
  68                           pagename, (filename ? filename:""));
  69                 delim = "?";
  70         } else {
  71                 tmp = fmt("?url=%s/%s/%s", reponame, pagename,
  72                           (filename ? filename : ""));
  73                 delim = "&";
  74         }
  75         if (query)
  76                 tmp = fmt("%s%s%s", tmp, delim, query);
  77         return tmp;
  78 }
  79
  80 char *cgit_pageurl(const char *reponame, const char *pagename,
  81                    const char *query)
  82 {
  83         return cgit_fileurl(reponame,pagename,0,query);
  84 }
  85
  86 const char *cgit_repobasename(const char *reponame)
  87 {
  88         /* I assume we don't need to store more than one repo basename */
  89         static char rvbuf[1024];
  90         int p;
  91         const char *rv;
  92         strncpy(rvbuf,reponame,sizeof(rvbuf));
  93         if(rvbuf[sizeof(rvbuf)-1])
  94                 die("cgit_repobasename: truncated repository name '%s'", reponame);
  95         p = strlen(rvbuf)-1;
  96         /* strip trailing slashes */
  97         while(p && rvbuf[p]=='/') rvbuf[p--]=0;
  98         /* strip trailing .git */
  99         if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
 100                 p -= 3; rvbuf[p--] = 0;
 101         }
 102         /* strip more trailing slashes if any */
 103         while( p && rvbuf[p]=='/') rvbuf[p--]=0;
 104         /* find last slash in the remaining string */
 105         rv = strrchr(rvbuf,'/');
 106         if(rv)
 107                 return ++rv;
 108         return rvbuf;
 109 }
 110
 111 char *cgit_currurl()
 112 {
 113         if (!cgit_virtual_root)
 114                 return cgit_script_name;
 115         else if (cgit_query_page)
 116                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
 117         else if (cgit_query_repo)
 118                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
 119         else
 120                 return fmt("%s/", cgit_virtual_root);
 121 }
 122
 123 static char *repolink(char *title, char *class, char *page, char *head,
 124                       char *path)
 125 {
 126         char *delim = "?";
 127
 128         html("<a");
 129         if (title) {
 130                 html(" title='");
 131                 html_attr(title);
 132                 html("'");
 133         }
 134         if (class) {
 135                 html(" class='");
 136                 html_attr(class);
 137                 html("'");
 138         }
 139         html(" href='");
 140         if (cgit_virtual_root) {
 141                 html_attr(cgit_virtual_root);
 142                 if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/')
 143                         html("/");
 144                 html_attr(cgit_repo->url);
 145                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 146                         html("/");
 147                 if (page) {
 148                         html(page);
 149                         html("/");
 150                         if (path)
 151                                 html_attr(path);
 152                 }
 153         } else {
 154                 html(cgit_script_name);
 155                 html("?url=");
 156                 html_attr(cgit_repo->url);
 157                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 158                         html("/");
 159                 if (page) {
 160                         html(page);
 161                         html("/");
 162                         if (path)
 163                                 html_attr(path);
 164                 }
 165                 delim = "&amp;";
 166         }
 167         if (head && strcmp(head, cgit_repo->defbranch)) {
 168                 html(delim);
 169                 html("h=");
 170                 html_attr(head);
 171                 delim = "&amp;";
 172         }
 173         return fmt("%s", delim);
 174 }
 175
 176 static void reporevlink(char *page, char *name, char *title, char *class,
 177                         char *head, char *rev, char *path)
 178 {
 179         char *delim;
 180
 181         delim = repolink(title, class, page, head, path);
 182         if (rev && strcmp(rev, cgit_query_head)) {
 183                 html(delim);
 184                 html("id=");
 185                 html_attr(rev);
 186         }
 187         html("'>");
 188         html_txt(name);
 189         html("</a>");
 190 }
 191
 192 void cgit_tree_link(char *name, char *title, char *class, char *head,
 193                     char *rev, char *path)
 194 {
 195         reporevlink("tree", name, title, class, head, rev, path);
 196 }
 197
 198 void cgit_log_link(char *name, char *title, char *class, char *head,
 199                    char *rev, char *path, int ofs, char *grep, char *pattern)
 200 {
 201         char *delim;
 202
 203         delim = repolink(title, class, "log", head, path);
 204         if (rev && strcmp(rev, cgit_query_head)) {
 205                 html(delim);
 206                 html("id=");
 207                 html_attr(rev);
 208                 delim = "&";
 209         }
 210         if (grep && pattern) {
 211                 html(delim);
 212                 html("qt=");
 213                 html_attr(grep);
 214                 delim = "&";
 215                 html(delim);
 216                 html("q=");
 217                 html_attr(pattern);
 218         }
 219         if (ofs > 0) {
 220                 html(delim);
 221                 html("ofs=");
 222                 htmlf("%d", ofs);
 223         }
 224         html("'>");
 225         html_txt(name);
 226         html("</a>");
 227 }
 228
 229 void cgit_commit_link(char *name, char *title, char *class, char *head,
 230                       char *rev)
 231 {
 232         if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) {
 233                 name[cgit_max_msg_len] = '\0';
 234                 name[cgit_max_msg_len - 1] = '.';
 235                 name[cgit_max_msg_len - 2] = '.';
 236                 name[cgit_max_msg_len - 3] = '.';
 237         }
 238         reporevlink("commit", name, title, class, head, rev, NULL);
 239 }
 240
 241 void cgit_refs_link(char *name, char *title, char *class, char *head,
 242                     char *rev, char *path)
 243 {
 244         reporevlink("refs", name, title, class, head, rev, path);
 245 }
 246
 247 void cgit_snapshot_link(char *name, char *title, char *class, char *head,
 248                         char *rev, char *archivename)
 249 {
 250         reporevlink("snapshot", name, title, class, head, rev, archivename);
 251 }
 252
 253 void cgit_diff_link(char *name, char *title, char *class, char *head,
 254                     char *new_rev, char *old_rev, char *path)
 255 {
 256         char *delim;
 257
 258         delim = repolink(title, class, "diff", head, path);
 259         if (new_rev && strcmp(new_rev, cgit_query_head)) {
 260                 html(delim);
 261                 html("id=");
 262                 html_attr(new_rev);
 263                 delim = "&amp;";
 264         }
 265         if (old_rev) {
 266                 html(delim);
 267                 html("id2=");
 268                 html_attr(old_rev);
 269         }
 270         html("'>");
 271         html_txt(name);
 272         html("</a>");
 273 }
 274
 275 void cgit_object_link(struct object *obj)
 276 {
 277         char *page, *arg, *url;
 278
 279         if (obj->type == OBJ_COMMIT) {
 280                 cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
 281                                  cgit_query_head, sha1_to_hex(obj->sha1));
 282                 return;
 283         } else if (obj->type == OBJ_TREE) {
 284                 page = "tree";
 285                 arg = "id";
 286         } else if (obj->type == OBJ_TAG) {
 287                 page = "tag";
 288                 arg = "id";
 289         } else {
 290                 page = "blob";
 291                 arg = "id";
 292         }
 293
 294         url = cgit_pageurl(cgit_query_repo, page,
 295                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
 296         html_link_open(url, NULL, NULL);
 297         htmlf("%s %s", typename(obj->type),
 298               sha1_to_hex(obj->sha1));
 299         html_link_close();
 300 }
 301
 302 void cgit_print_date(time_t secs, char *format)
 303 {
 304         char buf[64];
 305         struct tm *time;
 306
 307         if (!secs)
 308                 return;
 309         time = gmtime(&secs);
 310         strftime(buf, sizeof(buf)-1, format, time);
 311         html_txt(buf);
 312 }
 313
 314 void cgit_print_age(time_t t, time_t max_relative, char *format)
 315 {
 316         time_t now, secs;
 317
 318         if (!t)
 319                 return;
 320         time(&now);
 321         secs = now - t;
 322
 323         if (secs > max_relative && max_relative >= 0) {
 324                 cgit_print_date(t, format);
 325                 return;
 326         }
 327
 328         if (secs < TM_HOUR * 2) {
 329                 htmlf("<span class='age-mins'>%.0f min.</span>",
 330                       secs * 1.0 / TM_MIN);
 331                 return;
 332         }
 333         if (secs < TM_DAY * 2) {
 334                 htmlf("<span class='age-hours'>%.0f hours</span>",
 335                       secs * 1.0 / TM_HOUR);
 336                 return;
 337         }
 338         if (secs < TM_WEEK * 2) {
 339                 htmlf("<span class='age-days'>%.0f days</span>",
 340                       secs * 1.0 / TM_DAY);
 341                 return;
 342         }
 343         if (secs < TM_MONTH * 2) {
 344                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 345                       secs * 1.0 / TM_WEEK);
 346                 return;
 347         }
 348         if (secs < TM_YEAR * 2) {
 349                 htmlf("<span class='age-months'>%.0f months</span>",
 350                       secs * 1.0 / TM_MONTH);
 351                 return;
 352         }
 353         htmlf("<span class='age-years'>%.0f years</span>",
 354               secs * 1.0 / TM_YEAR);
 355 }
 356
 357 void cgit_print_docstart(char *title, struct cacheitem *item)
 358 {
 359         html("Content-Type: text/html; charset=utf-8\n");
 360         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 361         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 362                                          ttl_seconds(item->ttl)));
 363         html("\n");
 364         html(cgit_doctype);
 365         html("<html>\n");
 366         html("<head>\n");
 367         html("<title>");
 368         html_txt(title);
 369         html("</title>\n");
 370         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 371         html("<link rel='stylesheet' type='text/css' href='");
 372         html_attr(cgit_css);
 373         html("'/>\n");
 374         html("</head>\n");
 375         html("<body>\n");
 376 }
 377
 378 void cgit_print_docend()
 379 {
 380         html("</td>\n</tr>\n<table>\n</body>\n</html>\n");
 381 }
 382
 383 int print_branch_option(const char *refname, const unsigned char *sha1,
 384                         int flags, void *cb_data)
 385 {
 386         char *name = (char *)refname;
 387         html_option(name, name, cgit_query_head);
 388         return 0;
 389 }
 390
 391 int print_archive_ref(const char *refname, const unsigned char *sha1,
 392                        int flags, void *cb_data)
 393 {
 394         struct tag *tag;
 395         struct taginfo *info;
 396         struct object *obj;
 397         char buf[256], *url;
 398         unsigned char fileid[20];
 399         int *header = (int *)cb_data;
 400
 401         if (prefixcmp(refname, "refs/archives"))
 402                 return 0;
 403         strncpy(buf, refname+14, sizeof(buf));
 404         obj = parse_object(sha1);
 405         if (!obj)
 406                 return 1;
 407         if (obj->type == OBJ_TAG) {
 408                 tag = lookup_tag(sha1);
 409                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 410                         return 0;
 411                 hashcpy(fileid, tag->tagged->sha1);
 412         } else if (obj->type != OBJ_BLOB) {
 413                 return 0;
 414         } else {
 415                 hashcpy(fileid, sha1);
 416         }
 417         if (!*header) {
 418                 html("<p><h1>download</h1>");
 419                 *header = 1;
 420         }
 421         url = cgit_pageurl(cgit_query_repo, "blob",
 422                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
 423                                buf));
 424         html_link_open(url, NULL, "menu");
 425         html_txt(strlpart(buf, 20));
 426         html_link_close();
 427         return 0;
 428 }
 429
 430 void add_hidden_formfields(int incl_head, int incl_search, char *page)
 431 {
 432         char *url;
 433
 434         if (!cgit_virtual_root) {
 435                 url = fmt("%s/%s", cgit_query_repo, page);
 436                 if (cgit_query_path)
 437                         url = fmt("%s/%s", url, cgit_query_path);
 438                 html_hidden("url", url);
 439         }
 440
 441         if (incl_head && strcmp(cgit_query_head, cgit_repo->defbranch))
 442                 html_hidden("h", cgit_query_head);
 443
 444         if (cgit_query_sha1)
 445                 html_hidden("id", cgit_query_sha1);
 446         if (cgit_query_sha2)
 447                 html_hidden("id2", cgit_query_sha2);
 448
 449         if (incl_search) {
 450                 if (cgit_query_grep)
 451                         html_hidden("qt", cgit_query_grep);
 452                 if (cgit_query_search)
 453                         html_hidden("q", cgit_query_search);
 454         }
 455 }
 456
 457 void cgit_print_pageheader(char *title, int show_search)
 458 {
 459         static const char *default_info = "This is cgit, a fast webinterface for git repositories";
 460         int header = 0;
 461
 462         html("<div id='sidebar'>\n");
 463         html("<a href='");
 464         html_attr(cgit_rooturl());
 465         htmlf("'><div id='logo'><img src='%s' alt='cgit'/></div></a>\n",
 466               cgit_logo);
 467         html("<div class='infobox'>");
 468         if (cgit_query_repo) {
 469                 html("<h1>");
 470                 html_txt(strrpart(cgit_repo->name, 20));
 471                 html("</h1>\n");
 472                 html_txt(cgit_repo->desc);
 473                 if (cgit_repo->owner) {
 474                         html("<p>\n<h1>owner</h1>\n");
 475                         html_txt(cgit_repo->owner);
 476                 }
 477                 html("<p>\n<h1>navigate</h1>\n");
 478                 reporevlink(NULL, "summary", NULL, "menu", cgit_query_head,
 479                             NULL, NULL);
 480                 cgit_log_link("log", NULL, "menu", cgit_query_head, NULL, NULL,
 481                               0, NULL, NULL);
 482                 cgit_tree_link("tree", NULL, "menu", cgit_query_head,
 483                                cgit_query_sha1, NULL);
 484                 cgit_commit_link("commit", NULL, "menu", cgit_query_head,
 485                               cgit_query_sha1);
 486                 cgit_diff_link("diff", NULL, "menu", cgit_query_head,
 487                                cgit_query_sha1, cgit_query_sha2, NULL);
 488
 489                 for_each_ref(print_archive_ref, &header);
 490
 491                 html("<p>\n<h1>branch</h1>\n");
 492                 html("<form method='get' action=''>\n");
 493                 add_hidden_formfields(0, 1, cgit_query_page);
 494                 html("<table class='grid'><tr><td id='branch-dropdown-cell'>");
 495                 html("<select name='h' onchange='this.form.submit();'>\n");
 496                 for_each_branch_ref(print_branch_option, cgit_query_head);
 497                 html("</select>\n");
 498                 html("</td><td>");
 499                 html("<noscript><input type='submit' id='switch-btn' value='..'></noscript>\n");
 500                 html("</td></tr></table>");
 501                 html("</form>\n");
 502
 503                 html("<p>\n<h1>search</h1>\n");
 504                 html("<form method='get' action='");
 505                 if (cgit_virtual_root)
 506                         html_attr(cgit_fileurl(cgit_query_repo, "log",
 507                                                cgit_query_path, NULL));
 508                 html("'>\n");
 509                 add_hidden_formfields(1, 0, "log");
 510                 html("<select name='qt'>\n");
 511                 html_option("grep", "log msg", cgit_query_grep);
 512                 html_option("author", "author", cgit_query_grep);
 513                 html_option("committer", "committer", cgit_query_grep);
 514                 html("</select>\n");
 515                 html("<input class='txt' type='text' name='q' value='");
 516                 html_attr(cgit_query_search);
 517                 html("'/>\n");
 518                 html("</form>\n");
 519         } else {
 520                 if (!cgit_index_info || html_include(cgit_index_info))
 521                         html(default_info);
 522         }
 523
 524         html("</div>\n");
 525
 526         html("</div>\n<table class='grid'><tr><td id='content'>\n");
 527 }
 528
 529
 530 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 531                                struct cacheitem *item)
 532 {
 533         htmlf("Content-Type: %s\n", mimetype);
 534         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 535         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 536         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 537                                          ttl_seconds(item->ttl)));
 538         html("\n");
 539 }
 540
 541 /* vim:set sw=8: */