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                 html(page);
 115                 html("/");
 116                 if (path)
 117                         html_attr(path);
 118         } else {
 119                 html(cgit_script_name);
 120                 html("?url=");
 121                 html_attr(cgit_repo->url);
 122                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 123                         html("/");
 124                 html(page);
 125                 html("/");
 126                 if (path)
 127                         html_attr(path);
 128                 delim = "&amp;";
 129         }
 130         if (head && strcmp(head, cgit_query_head)) {
 131                 html(delim);
 132                 html("h=");
 133                 html_attr(head);
 134                 delim = "&amp;";
 135         }
 136         return fmt("%s", delim);
 137 }
 138
 139 void cgit_tree_link(char *name, char *title, char *class, char *head,
 140                     char *rev, char *path)
 141 {
 142         char *delim;
 143
 144         delim = repolink(title, class, "tree", head, path);
 145         if (rev && strcmp(rev, cgit_query_head)) {
 146                 html(delim);
 147                 html("id=");
 148                 html_attr(rev);
 149         }
 150         html("'>");
 151         html_txt(name);
 152         html("</a>");
 153 }
 154
 155 void cgit_print_date(time_t secs, char *format)
 156 {
 157         char buf[64];
 158         struct tm *time;
 159
 160         time = gmtime(&secs);
 161         strftime(buf, sizeof(buf)-1, format, time);
 162         html_txt(buf);
 163 }
 164
 165 void cgit_print_age(time_t t, time_t max_relative, char *format)
 166 {
 167         time_t now, secs;
 168
 169         time(&now);
 170         secs = now - t;
 171
 172         if (secs > max_relative && max_relative >= 0) {
 173                 cgit_print_date(t, format);
 174                 return;
 175         }
 176
 177         if (secs < TM_HOUR * 2) {
 178                 htmlf("<span class='age-mins'>%.0f min.</span>",
 179                       secs * 1.0 / TM_MIN);
 180                 return;
 181         }
 182         if (secs < TM_DAY * 2) {
 183                 htmlf("<span class='age-hours'>%.0f hours</span>",
 184                       secs * 1.0 / TM_HOUR);
 185                 return;
 186         }
 187         if (secs < TM_WEEK * 2) {
 188                 htmlf("<span class='age-days'>%.0f days</span>",
 189                       secs * 1.0 / TM_DAY);
 190                 return;
 191         }
 192         if (secs < TM_MONTH * 2) {
 193                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 194                       secs * 1.0 / TM_WEEK);
 195                 return;
 196         }
 197         if (secs < TM_YEAR * 2) {
 198                 htmlf("<span class='age-months'>%.0f months</span>",
 199                       secs * 1.0 / TM_MONTH);
 200                 return;
 201         }
 202         htmlf("<span class='age-years'>%.0f years</span>",
 203               secs * 1.0 / TM_YEAR);
 204 }
 205
 206 void cgit_print_docstart(char *title, struct cacheitem *item)
 207 {
 208         html("Content-Type: text/html; charset=utf-8\n");
 209         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 210         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 211                                          ttl_seconds(item->ttl)));
 212         html("\n");
 213         html(cgit_doctype);
 214         html("<html>\n");
 215         html("<head>\n");
 216         html("<title>");
 217         html_txt(title);
 218         html("</title>\n");
 219         htmlf("<meta name='generator' content='cgit v%s'/>\n", cgit_version);
 220         html("<link rel='stylesheet' type='text/css' href='");
 221         html_attr(cgit_css);
 222         html("'/>\n");
 223         html("</head>\n");
 224         html("<body>\n");
 225 }
 226
 227 void cgit_print_docend()
 228 {
 229         html("</td></tr></table>");
 230         html("</body>\n</html>\n");
 231 }
 232
 233 void cgit_print_pageheader(char *title, int show_search)
 234 {
 235         html("<table id='layout'>");
 236         html("<tr><td id='header'>");
 237         html(cgit_root_title);
 238         html("</td><td id='logo'>");
 239         html("<a href='");
 240         html_attr(cgit_logo_link);
 241         htmlf("'><img src='%s' alt='logo'/></a>", cgit_logo);
 242         html("</td></tr>");
 243         html("<tr><td id='crumb'>");
 244         htmlf("<a href='%s'>root</a>", cgit_rooturl());
 245         if (cgit_query_repo) {
 246                 htmlf(" : <a href='%s'>", cgit_repourl(cgit_repo->url));
 247                 html_txt(cgit_repo->name);
 248                 htmlf("</a> : %s", title);
 249         }
 250         html("</td>");
 251         html("<td id='search'>");
 252         if (show_search) {
 253                 html("<form method='get' action='");
 254                 html_attr(cgit_currurl());
 255                 html("'>");
 256                 if (!cgit_virtual_root) {
 257                         if (cgit_query_repo)
 258                                 html_hidden("r", cgit_query_repo);
 259                         if (cgit_query_page)
 260                                 html_hidden("p", cgit_query_page);
 261                 }
 262                 if (cgit_query_head)
 263                         html_hidden("h", cgit_query_head);
 264                 if (cgit_query_sha1)
 265                         html_hidden("id", cgit_query_sha1);
 266                 if (cgit_query_sha2)
 267                         html_hidden("id2", cgit_query_sha2);
 268                 html("<input type='text' name='q' value='");
 269                 html_attr(cgit_query_search);
 270                 html("'/></form>");
 271         }
 272         html("</td></tr>");
 273         html("<tr><td id='content' colspan='2'>");
 274 }
 275
 276 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 277                                struct cacheitem *item)
 278 {
 279         htmlf("Content-Type: %s\n", mimetype);
 280         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 281         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 282         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 283                                          ttl_seconds(item->ttl)));
 284         html("\n");
 285 }