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_pageurl(const char *reponame, const char *pagename,
  61                    const char *query)
  62 {
  63         if (cgit_virtual_root) {
  64                 if (query)
  65                         return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame,
  66                                    pagename, 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_currurl()
  79 {
  80         if (!cgit_virtual_root)
  81                 return cgit_script_name;
  82         else if (cgit_query_page)
  83                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
  84         else if (cgit_query_repo)
  85                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
  86         else
  87                 return fmt("%s/", cgit_virtual_root);
  88 }
  89
  90 static char *repolink(char *title, char *class, char *page, char *head,
  91                       char *path)
  92 {
  93         char *delim = "?";
  94
  95         html("<a");
  96         if (title) {
  97                 html(" title='");
  98                 html_attr(title);
  99                 html("'");
 100         }
 101         if (class) {
 102                 html(" class='");
 103                 html_attr(class);
 104                 html("'");
 105         }
 106         html(" href='");
 107         if (cgit_virtual_root) {
 108                 html_attr(cgit_virtual_root);
 109                 if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/')
 110                         html("/");
 111                 html_attr(cgit_repo->url);
 112                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 113                         html("/");
 114                 if (page) {
 115                         html(page);
 116                         html("/");
 117                         if (path)
 118                                 html_attr(path);
 119                 }
 120         } else {
 121                 html(cgit_script_name);
 122                 html("?url=");
 123                 html_attr(cgit_repo->url);
 124                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 125                         html("/");
 126                 if (page) {
 127                         html(page);
 128                         html("/");
 129                         if (path)
 130                                 html_attr(path);
 131                 }
 132                 delim = "&amp;";
 133         }
 134         if (head && strcmp(head, cgit_repo->defbranch)) {
 135                 html(delim);
 136                 html("h=");
 137                 html_attr(head);
 138                 delim = "&amp;";
 139         }
 140         return fmt("%s", delim);
 141 }
 142
 143 static void reporevlink(char *page, char *name, char *title, char *class,
 144                         char *head, char *rev, char *path)
 145 {
 146         char *delim;
 147
 148         delim = repolink(title, class, page, head, path);
 149         if (rev && strcmp(rev, cgit_query_head)) {
 150                 html(delim);
 151                 html("id=");
 152                 html_attr(rev);
 153         }
 154         html("'>");
 155         html_txt(name);
 156         html("</a>");
 157 }
 158
 159 void cgit_tree_link(char *name, char *title, char *class, char *head,
 160                     char *rev, char *path)
 161 {
 162         reporevlink("tree", name, title, class, head, rev, path);
 163 }
 164
 165 void cgit_log_link(char *name, char *title, char *class, char *head,
 166                    char *rev, char *path, int ofs)
 167 {
 168         char *delim;
 169
 170         delim = repolink(title, class, "log", head, path);
 171         if (rev && strcmp(rev, cgit_query_head)) {
 172                 html(delim);
 173                 html("id=");
 174                 html_attr(rev);
 175                 delim = "&";
 176         }
 177         if (ofs > 0) {
 178                 html(delim);
 179                 html("ofs=");
 180                 htmlf("%d", ofs);
 181         }
 182         html("'>");
 183         html_txt(name);
 184         html("</a>");
 185 }
 186
 187 void cgit_commit_link(char *name, char *title, char *class, char *head,
 188                       char *rev)
 189 {
 190         if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) {
 191                 name[cgit_max_msg_len] = '\0';
 192                 name[cgit_max_msg_len - 1] = '.';
 193                 name[cgit_max_msg_len - 2] = '.';
 194                 name[cgit_max_msg_len - 3] = '.';
 195         }
 196         reporevlink("commit", name, title, class, head, rev, NULL);
 197 }
 198
 199 void cgit_diff_link(char *name, char *title, char *class, char *head,
 200                     char *new_rev, char *old_rev, char *path)
 201 {
 202         char *delim;
 203
 204         delim = repolink(title, class, "diff", head, path);
 205         if (new_rev && strcmp(new_rev, cgit_query_head)) {
 206                 html(delim);
 207                 html("id=");
 208                 html_attr(new_rev);
 209                 delim = "&amp;";
 210         }
 211         if (old_rev) {
 212                 html(delim);
 213                 html("id2=");
 214                 html_attr(old_rev);
 215         }
 216         html("'>");
 217         html_txt(name);
 218         html("</a>");
 219 }
 220
 221 void cgit_print_date(time_t secs, char *format)
 222 {
 223         char buf[64];
 224         struct tm *time;
 225
 226         time = gmtime(&secs);
 227         strftime(buf, sizeof(buf)-1, format, time);
 228         html_txt(buf);
 229 }
 230
 231 void cgit_print_age(time_t t, time_t max_relative, char *format)
 232 {
 233         time_t now, secs;
 234
 235         time(&now);
 236         secs = now - t;
 237
 238         if (secs > max_relative && max_relative >= 0) {
 239                 cgit_print_date(t, format);
 240                 return;
 241         }
 242
 243         if (secs < TM_HOUR * 2) {
 244                 htmlf("<span class='age-mins'>%.0f min.</span>",
 245                       secs * 1.0 / TM_MIN);
 246                 return;
 247         }
 248         if (secs < TM_DAY * 2) {
 249                 htmlf("<span class='age-hours'>%.0f hours</span>",
 250                       secs * 1.0 / TM_HOUR);
 251                 return;
 252         }
 253         if (secs < TM_WEEK * 2) {
 254                 htmlf("<span class='age-days'>%.0f days</span>",
 255                       secs * 1.0 / TM_DAY);
 256                 return;
 257         }
 258         if (secs < TM_MONTH * 2) {
 259                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 260                       secs * 1.0 / TM_WEEK);
 261                 return;
 262         }
 263         if (secs < TM_YEAR * 2) {
 264                 htmlf("<span class='age-months'>%.0f months</span>",
 265                       secs * 1.0 / TM_MONTH);
 266                 return;
 267         }
 268         htmlf("<span class='age-years'>%.0f years</span>",
 269               secs * 1.0 / TM_YEAR);
 270 }
 271
 272 void cgit_print_docstart(char *title, struct cacheitem *item)
 273 {
 274         html("Content-Type: text/html; charset=utf-8\n");
 275         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 276         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 277                                          ttl_seconds(item->ttl)));
 278         html("\n");
 279         html(cgit_doctype);
 280         html("<html>\n");
 281         html("<head>\n");
 282         html("<title>");
 283         html_txt(title);
 284         html("</title>\n");
 285         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 286         html("<link rel='stylesheet' type='text/css' href='");
 287         html_attr(cgit_css);
 288         html("'/>\n");
 289         html("</head>\n");
 290         html("<body>\n");
 291 }
 292
 293 void cgit_print_docend()
 294 {
 295         html("</td></tr></table>");
 296         html("</body>\n</html>\n");
 297 }
 298
 299 void cgit_print_pageheader(char *title, int show_search)
 300 {
 301         html("<table id='layout'>");
 302         html("<tr><td id='header'><a href='");
 303         html_attr(cgit_rooturl());
 304         html("'>");
 305         html_txt(cgit_root_title);
 306         html("</a></td><td id='logo'>");
 307         html("<a href='");
 308         html_attr(cgit_logo_link);
 309         htmlf("'><img src='%s' alt='logo'/></a>", cgit_logo);
 310         html("</td></tr>");
 311         html("<tr><td id='crumb'>");
 312         if (cgit_query_repo) {
 313                 html_txt(cgit_repo->name);
 314                 html(" (");
 315                 html_txt(cgit_query_head);
 316                 html(") : &nbsp;");
 317                 reporevlink(NULL, "summary", NULL, NULL, cgit_query_head,
 318                             NULL, NULL);
 319                 html(" ");
 320                 cgit_log_link("log", NULL, NULL, cgit_query_head,
 321                               cgit_query_sha1, cgit_query_path, 0);
 322                 html(" ");
 323                 cgit_tree_link("tree", NULL, NULL, cgit_query_head,
 324                                cgit_query_sha1, NULL);
 325                 html(" ");
 326                 cgit_commit_link("commit", NULL, NULL, cgit_query_head,
 327                               cgit_query_sha1);
 328                 html(" ");
 329                 cgit_diff_link("diff", NULL, NULL, cgit_query_head,
 330                                cgit_query_sha1, cgit_query_sha2,
 331                                cgit_query_path);
 332         } else {
 333                 html_txt("Index of repositories");
 334         }
 335         html("</td>");
 336         html("<td id='search'>");
 337         if (show_search) {
 338                 html("<form method='get' action='");
 339                 html_attr(cgit_currurl());
 340                 html("'>");
 341                 if (!cgit_virtual_root) {
 342                         if (cgit_query_repo)
 343                                 html_hidden("r", cgit_query_repo);
 344                         if (cgit_query_page)
 345                                 html_hidden("p", cgit_query_page);
 346                 }
 347                 if (cgit_query_head)
 348                         html_hidden("h", cgit_query_head);
 349                 if (cgit_query_sha1)
 350                         html_hidden("id", cgit_query_sha1);
 351                 if (cgit_query_sha2)
 352                         html_hidden("id2", cgit_query_sha2);
 353                 html("<input type='text' name='q' value='");
 354                 html_attr(cgit_query_search);
 355                 html("'/></form>");
 356         }
 357         html("</td></tr>");
 358         html("<tr><td id='content' colspan='2'>");
 359 }
 360
 361 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 362                                struct cacheitem *item)
 363 {
 364         htmlf("Content-Type: %s\n", mimetype);
 365         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 366         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 367         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 368                                          ttl_seconds(item->ttl)));
 369         html("\n");
 370 }