cgi/rss.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <time.h>
   4 #include <cgi-util.h>
   5 #include "database.h"
   6 #include "escapery.h"
   7 #include "canned_responses.h"
   8 #include "app.h"
   9 #include "config.h"
  10
  11 int fprint_rss(FILE *f, const char *username) {
  12         struct blerg *b = blerg_open(username);
  13         uint64_t record_count = blerg_get_record_count(b);
  14         uint64_t i = (record_count > 50 ? record_count - 50 : 0);
  15         char *data;
  16         char *tmp;
  17         time_t post_time;
  18         char date[40];
  19         int len;
  20
  21         fprintf(f,
  22                 "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
  23                 "<rss version=\"2.0\">\n"
  24                 "<channel>\n"
  25                 "<title>%s's blërg</title>\n"
  26                 "<link>%s#%s</link>\n"
  27                 "<description>%s</description>\n",
  28                 username,
  29                 BASEURL,
  30                 username,
  31                 "Textual vomit"
  32         );
  33
  34         while (i < record_count) {
  35                 blerg_fetch(b, i, &data, &len);
  36                 tmp = xml_escape_data(data, len);
  37                 post_time = blerg_get_timestamp(b, i);
  38                 strftime(date, 39, "%a, %d %b %Y %H:%M:%S %Z", gmtime(&post_time));
  39                 fprintf(f,
  40                         "<item>\n"
  41                         "<pubDate>%s</pubDate>\n"
  42                         "<guid>%sget/%s/%llu</guid>\n"
  43                         "<description>%s</description>\n"
  44                         "</item>\n",
  45                         date,
  46                         BASEURL, username, i,
  47                         tmp
  48                 );
  49                 free(tmp);
  50                 free(data);
  51                 i++;
  52         }
  53         blerg_close(b);
  54
  55         fprintf(f,
  56                 "</channel>\n"
  57                 "</rss>\n"
  58         );
  59 }
  60
  61 int main (int argc, char *argv) {
  62         char *path;
  63         char *request_method;
  64         int ret;
  65         struct url_info info;
  66
  67         request_method = getenv("REQUEST_METHOD");
  68         if (request_method == NULL) {
  69                 fprintf(stderr, "Request method is null!?\n");
  70                 exit(0);
  71         }
  72
  73         if (strncmp(request_method, "GET", 4) != 0) {
  74                 respond_405();
  75                 exit(0);
  76         }
  77
  78         path = getenv("PATH_INFO");
  79         if (path == NULL) {
  80                 respond_404();
  81                 exit(0);
  82         }
  83
  84         if (path[0] != '/') {
  85                 respond_404();
  86                 exit(0);
  87         }
  88
  89         ret = parse_url_info(path + 1, &info);
  90         if ((ret & URL_INFO_AUTHOR) == 0) {
  91                 respond_404();
  92                 exit(0);
  93         }
  94
  95         if (!blerg_exists(info.author)) {
  96                 respond_404();
  97                 exit(0);
  98         }
  99
 100         printf("Content-type: application/rss+xml\r\n\r\n");
 101
 102         fprint_rss(stdout, "chip");
 103
 104 }