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         if (cgit_virtual_root) {
  64                 if (query)
  65                         return fmt("%s/%s/%s/%s?%s", cgit_virtual_root, reponame,
  66                                    pagename, filename?filename:"", query);
  67                 else
  68                         return fmt("%s/%s/%s/", cgit_virtual_root, reponame,
  69                                    pagename);
  70         } else {
  71                 if (query)
  72                         return fmt("?r=%s&amp;p=%s&amp;%s", reponame, pagename, query);
  73                 else
  74                         return fmt("?r=%s&amp;p=%s", reponame, pagename);
  75         }
  76 }
  77
  78 char *cgit_pageurl(const char *reponame, const char *pagename,
  79                    const char *query)
  80 {
  81         return cgit_fileurl(reponame,pagename,0,query);
  82 }
  83
  84
  85 char *cgit_currurl()
  86 {
  87         if (!cgit_virtual_root)
  88                 return cgit_script_name;
  89         else if (cgit_query_page)
  90                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
  91         else if (cgit_query_repo)
  92                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
  93         else
  94                 return fmt("%s/", cgit_virtual_root);
  95 }
  96
  97 static char *repolink(char *title, char *class, char *page, char *head,
  98                       char *path)
  99 {
 100         char *delim = "?";
 101
 102         html("<a");
 103         if (title) {
 104                 html(" title='");
 105                 html_attr(title);
 106                 html("'");
 107         }
 108         if (class) {
 109                 html(" class='");
 110                 html_attr(class);
 111                 html("'");
 112         }
 113         html(" href='");
 114         if (cgit_virtual_root) {
 115                 html_attr(cgit_virtual_root);
 116                 if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/')
 117                         html("/");
 118                 html_attr(cgit_repo->url);
 119                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 120                         html("/");
 121                 if (page) {
 122                         html(page);
 123                         html("/");
 124                         if (path)
 125                                 html_attr(path);
 126                 }
 127         } else {
 128                 html(cgit_script_name);
 129                 html("?url=");
 130                 html_attr(cgit_repo->url);
 131                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 132                         html("/");
 133                 if (page) {
 134                         html(page);
 135                         html("/");
 136                         if (path)
 137                                 html_attr(path);
 138                 }
 139                 delim = "&amp;";
 140         }
 141         if (head && strcmp(head, cgit_repo->defbranch)) {
 142                 html(delim);
 143                 html("h=");
 144                 html_attr(head);
 145                 delim = "&amp;";
 146         }
 147         return fmt("%s", delim);
 148 }
 149
 150 static void reporevlink(char *page, char *name, char *title, char *class,
 151                         char *head, char *rev, char *path)
 152 {
 153         char *delim;
 154
 155         delim = repolink(title, class, page, head, path);
 156         if (rev && strcmp(rev, cgit_query_head)) {
 157                 html(delim);
 158                 html("id=");
 159                 html_attr(rev);
 160         }
 161         html("'>");
 162         html_txt(name);
 163         html("</a>");
 164 }
 165
 166 void cgit_tree_link(char *name, char *title, char *class, char *head,
 167                     char *rev, char *path)
 168 {
 169         reporevlink("tree", name, title, class, head, rev, path);
 170 }
 171
 172 void cgit_log_link(char *name, char *title, char *class, char *head,
 173                    char *rev, char *path, int ofs)
 174 {
 175         char *delim;
 176
 177         delim = repolink(title, class, "log", head, path);
 178         if (rev && strcmp(rev, cgit_query_head)) {
 179                 html(delim);
 180                 html("id=");
 181                 html_attr(rev);
 182                 delim = "&";
 183         }
 184         if (ofs > 0) {
 185                 html(delim);
 186                 html("ofs=");
 187                 htmlf("%d", ofs);
 188         }
 189         html("'>");
 190         html_txt(name);
 191         html("</a>");
 192 }
 193
 194 void cgit_commit_link(char *name, char *title, char *class, char *head,
 195                       char *rev)
 196 {
 197         if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) {
 198                 name[cgit_max_msg_len] = '\0';
 199                 name[cgit_max_msg_len - 1] = '.';
 200                 name[cgit_max_msg_len - 2] = '.';
 201                 name[cgit_max_msg_len - 3] = '.';
 202         }
 203         reporevlink("commit", name, title, class, head, rev, NULL);
 204 }
 205
 206 void cgit_diff_link(char *name, char *title, char *class, char *head,
 207                     char *new_rev, char *old_rev, char *path)
 208 {
 209         char *delim;
 210
 211         delim = repolink(title, class, "diff", head, path);
 212         if (new_rev && strcmp(new_rev, cgit_query_head)) {
 213                 html(delim);
 214                 html("id=");
 215                 html_attr(new_rev);
 216                 delim = "&amp;";
 217         }
 218         if (old_rev) {
 219                 html(delim);
 220                 html("id2=");
 221                 html_attr(old_rev);
 222         }
 223         html("'>");
 224         html_txt(name);
 225         html("</a>");
 226 }
 227
 228 void cgit_print_date(time_t secs, char *format)
 229 {
 230         char buf[64];
 231         struct tm *time;
 232
 233         time = gmtime(&secs);
 234         strftime(buf, sizeof(buf)-1, format, time);
 235         html_txt(buf);
 236 }
 237
 238 void cgit_print_age(time_t t, time_t max_relative, char *format)
 239 {
 240         time_t now, secs;
 241
 242         time(&now);
 243         secs = now - t;
 244
 245         if (secs > max_relative && max_relative >= 0) {
 246                 cgit_print_date(t, format);
 247                 return;
 248         }
 249
 250         if (secs < TM_HOUR * 2) {
 251                 htmlf("<span class='age-mins'>%.0f min.</span>",
 252                       secs * 1.0 / TM_MIN);
 253                 return;
 254         }
 255         if (secs < TM_DAY * 2) {
 256                 htmlf("<span class='age-hours'>%.0f hours</span>",
 257                       secs * 1.0 / TM_HOUR);
 258                 return;
 259         }
 260         if (secs < TM_WEEK * 2) {
 261                 htmlf("<span class='age-days'>%.0f days</span>",
 262                       secs * 1.0 / TM_DAY);
 263                 return;
 264         }
 265         if (secs < TM_MONTH * 2) {
 266                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 267                       secs * 1.0 / TM_WEEK);
 268                 return;
 269         }
 270         if (secs < TM_YEAR * 2) {
 271                 htmlf("<span class='age-months'>%.0f months</span>",
 272                       secs * 1.0 / TM_MONTH);
 273                 return;
 274         }
 275         htmlf("<span class='age-years'>%.0f years</span>",
 276               secs * 1.0 / TM_YEAR);
 277 }
 278
 279 void cgit_print_docstart(char *title, struct cacheitem *item)
 280 {
 281         html("Content-Type: text/html; charset=utf-8\n");
 282         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 283         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 284                                          ttl_seconds(item->ttl)));
 285         html("\n");
 286         html(cgit_doctype);
 287         html("<html>\n");
 288         html("<head>\n");
 289         html("<title>");
 290         html_txt(title);
 291         html("</title>\n");
 292         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 293         html("<link rel='stylesheet' type='text/css' href='");
 294         html_attr(cgit_css);
 295         html("'/>\n");
 296         html("</head>\n");
 297         html("<body>\n");
 298 }
 299
 300 void cgit_print_docend()
 301 {
 302         html("</td></tr></table>");
 303         html("</body>\n</html>\n");
 304 }
 305
 306 void cgit_print_pageheader(char *title, int show_search)
 307 {
 308         html("<table id='layout'>");
 309         html("<tr><td id='header'><a href='");
 310         html_attr(cgit_rooturl());
 311         html("'>");
 312         html_txt(cgit_root_title);
 313         html("</a></td><td id='logo'>");
 314         html("<a href='");
 315         html_attr(cgit_logo_link);
 316         htmlf("'><img src='%s' alt='logo'/></a>", cgit_logo);
 317         html("</td></tr>");
 318         html("<tr><td id='crumb'>");
 319         if (cgit_query_repo) {
 320                 html_txt(cgit_repo->name);
 321                 html(" (");
 322                 html_txt(cgit_query_head);
 323                 html(") : &nbsp;");
 324                 reporevlink(NULL, "summary", NULL, NULL, cgit_query_head,
 325                             NULL, NULL);
 326                 html(" ");
 327                 cgit_log_link("log", NULL, NULL, cgit_query_head,
 328                               cgit_query_sha1, cgit_query_path, 0);
 329                 html(" ");
 330                 cgit_tree_link("tree", NULL, NULL, cgit_query_head,
 331                                cgit_query_sha1, NULL);
 332                 html(" ");
 333                 cgit_commit_link("commit", NULL, NULL, cgit_query_head,
 334                               cgit_query_sha1);
 335                 html(" ");
 336                 cgit_diff_link("diff", NULL, NULL, cgit_query_head,
 337                                cgit_query_sha1, cgit_query_sha2,
 338                                cgit_query_path);
 339         } else {
 340                 html_txt("Index of repositories");
 341         }
 342         html("</td>");
 343         html("<td id='search'>");
 344         if (show_search) {
 345                 html("<form method='get' action='");
 346                 html_attr(cgit_currurl());
 347                 html("'>");
 348                 if (!cgit_virtual_root) {
 349                         if (cgit_query_repo)
 350                                 html_hidden("r", cgit_query_repo);
 351                         if (cgit_query_page)
 352                                 html_hidden("p", cgit_query_page);
 353                 }
 354                 if (cgit_query_head)
 355                         html_hidden("h", cgit_query_head);
 356                 if (cgit_query_sha1)
 357                         html_hidden("id", cgit_query_sha1);
 358                 if (cgit_query_sha2)
 359                         html_hidden("id2", cgit_query_sha2);
 360                 html("<input type='text' name='q' value='");
 361                 html_attr(cgit_query_search);
 362                 html("'/></form>");
 363         }
 364         html("</td></tr>");
 365         html("<tr><td id='content' colspan='2'>");
 366 }
 367
 368 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 369                                struct cacheitem *item)
 370 {
 371         htmlf("Content-Type: %s\n", mimetype);
 372         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 373         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 374         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 375                                          ttl_seconds(item->ttl)));
 376         html("\n");
 377 }
 378
 379 /* vim:set sw=8: */