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&p=%s&%s", reponame, pagename, query);
  73                 else
  74                         return fmt("?r=%s&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
  91 void cgit_print_date(time_t secs, char *format)
  92 {
  93         char buf[64];
  94         struct tm *time;
  95
  96         time = gmtime(&secs);
  97         strftime(buf, sizeof(buf)-1, format, time);
  98         html_txt(buf);
  99 }
 100
 101 void cgit_print_age(time_t t, time_t max_relative, char *format)
 102 {
 103         time_t now, secs;
 104
 105         time(&now);
 106         secs = now - t;
 107
 108         if (secs > max_relative && max_relative >= 0) {
 109                 cgit_print_date(t, format);
 110                 return;
 111         }
 112
 113         if (secs < TM_HOUR * 2) {
 114                 htmlf("<span class='age-mins'>%.0f min.</span>",
 115                       secs * 1.0 / TM_MIN);
 116                 return;
 117         }
 118         if (secs < TM_DAY * 2) {
 119                 htmlf("<span class='age-hours'>%.0f hours</span>",
 120                       secs * 1.0 / TM_HOUR);
 121                 return;
 122         }
 123         if (secs < TM_WEEK * 2) {
 124                 htmlf("<span class='age-days'>%.0f days</span>",
 125                       secs * 1.0 / TM_DAY);
 126                 return;
 127         }
 128         if (secs < TM_MONTH * 2) {
 129                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 130                       secs * 1.0 / TM_WEEK);
 131                 return;
 132         }
 133         if (secs < TM_YEAR * 2) {
 134                 htmlf("<span class='age-months'>%.0f months</span>",
 135                       secs * 1.0 / TM_MONTH);
 136                 return;
 137         }
 138         htmlf("<span class='age-years'>%.0f years</span>",
 139               secs * 1.0 / TM_YEAR);
 140 }
 141
 142 void cgit_print_docstart(char *title, struct cacheitem *item)
 143 {
 144         html("Content-Type: text/html; charset=utf-8\n");
 145         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 146         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 147                                          ttl_seconds(item->ttl)));
 148         html("\n");
 149         html(cgit_doctype);
 150         html("<html>\n");
 151         html("<head>\n");
 152         html("<title>");
 153         html_txt(title);
 154         html("</title>\n");
 155         htmlf("<meta name='generator' content='cgit v%s'/>\n", cgit_version);
 156         html("<link rel='stylesheet' type='text/css' href='");
 157         html_attr(cgit_css);
 158         html("'/>\n");
 159         html("</head>\n");
 160         html("<body>\n");
 161 }
 162
 163 void cgit_print_docend()
 164 {
 165         html("</td></tr></table>");
 166         html("</body>\n</html>\n");
 167 }
 168
 169 void cgit_print_pageheader(char *title, int show_search)
 170 {
 171         html("<table id='layout'>");
 172         html("<tr><td id='header'>");
 173         html(cgit_root_title);
 174         html("</td><td id='logo'>");
 175         html("<a href='");
 176         html_attr(cgit_logo_link);
 177         htmlf("'><img src='%s'/></a>", cgit_logo);
 178         html("</td></tr>");
 179         html("<tr><td id='crumb'>");
 180         htmlf("<a href='%s'>root</a>", cgit_rooturl());
 181         if (cgit_query_repo) {
 182                 htmlf(" : <a href='%s'>", cgit_repourl(cgit_repo->url));
 183                 html_txt(cgit_repo->name);
 184                 htmlf("</a> : %s", title);
 185         }
 186         html("</td>");
 187         html("<td id='search'>");
 188         if (show_search) {
 189                 html("<form method='get' action='");
 190                 html_attr(cgit_currurl());
 191                 html("'>");
 192                 if (!cgit_virtual_root) {
 193                         if (cgit_query_repo)
 194                                 html_hidden("r", cgit_query_repo);
 195                         if (cgit_query_page)
 196                                 html_hidden("p", cgit_query_page);
 197                 }
 198                 if (cgit_query_head)
 199                         html_hidden("h", cgit_query_head);
 200                 if (cgit_query_sha1)
 201                         html_hidden("id", cgit_query_sha1);
 202                 if (cgit_query_sha2)
 203                         html_hidden("id2", cgit_query_sha2);
 204                 html("<input type='text' name='q' value='");
 205                 html_attr(cgit_query_search);
 206                 html("'/></form>");
 207         }
 208         html("</td></tr>");
 209         html("<tr><td id='content' colspan='2'>");
 210 }
 211
 212 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 213                                struct cacheitem *item)
 214 {
 215         htmlf("Content-Type: %s\n", mimetype);
 216         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 217         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 218         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 219                                          ttl_seconds(item->ttl)));
 220         html("\n");
 221 }