webcit/groupdav_get.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles GroupDAV GET requests.
   5  *
   6  */
   7
   8 #include <ctype.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13 #include <signal.h>
  14 #include <sys/types.h>
  15 #include <sys/wait.h>
  16 #include <sys/socket.h>
  17 #include <limits.h>
  18 #include <string.h>
  19 #include <pwd.h>
  20 #include <errno.h>
  21 #include <stdarg.h>
  22 #include <time.h>
  23 #include <pthread.h>
  24 #include "webcit.h"
  25 #include "webserver.h"
  26 #include "groupdav.h"
  27
  28
  29 /*
  30  * The pathname is always going to be /groupdav/room_name/euid
  31  */
  32 void groupdav_get(char *dav_pathname) {
  33         char dav_roomname[SIZ];
  34         char dav_uid[SIZ];
  35         long dav_msgnum = (-1);
  36         char buf[SIZ];
  37         int n = 0;
  38         int in_body = 0;
  39         int found_content_type = 0;
  40
  41         /* First, break off the "/groupdav/" prefix */
  42         remove_token(dav_pathname, 0, '/');
  43         remove_token(dav_pathname, 0, '/');
  44
  45         /* Now extract the message euid */
  46         n = num_tokens(dav_pathname, '/');
  47         extract_token(dav_uid, dav_pathname, n-1, '/');
  48         remove_token(dav_pathname, n-1, '/');
  49
  50         /* What's left is the room name.  Remove trailing slashes. */
  51         if (dav_pathname[strlen(dav_pathname)-1] == '/') {
  52                 dav_pathname[strlen(dav_pathname)-1] = 0;
  53         }
  54         strcpy(dav_roomname, dav_pathname);
  55
  56         /* Go to the correct room. */
  57         if (strcasecmp(WC->wc_roomname, dav_roomname)) {
  58                 gotoroom(dav_roomname);
  59         }
  60         if (strcasecmp(WC->wc_roomname, dav_roomname)) {
  61                 wprintf("HTTP/1.1 404 not found\r\n");
  62                 groupdav_common_headers();
  63                 wprintf(
  64                         "Content-Type: text/plain\r\n"
  65                         "\r\n"
  66                         "There is no folder called \"%s\" on this server.\r\n",
  67                         dav_roomname
  68                 );
  69                 return;
  70         }
  71
  72         dav_msgnum = locate_message_by_uid(dav_uid);
  73         serv_printf("MSG2 %ld", dav_msgnum);
  74         serv_gets(buf);
  75         if (buf[0] != '1') {
  76                 wprintf("HTTP/1.1 404 not found\r\n");
  77                 groupdav_common_headers();
  78                 wprintf(
  79                         "Content-Type: text/plain\r\n"
  80                         "\r\n"
  81                         "Object \"%s\" was not found in the \"%s\" folder.\r\n",
  82                         dav_uid,
  83                         dav_roomname
  84                 );
  85                 return;
  86         }
  87
  88         wprintf("HTTP/1.1 200 OK\r\n");
  89         groupdav_common_headers();
  90         wprintf("ETag: \"%ld\"\r\n", dav_msgnum);
  91         while (serv_gets(buf), strcmp(buf, "000")) {
  92                 if (!strncasecmp(buf, "Date: ", 6)) {
  93                         wprintf("%s\r\n", buf);
  94                 }
  95                 if (!strncasecmp(buf, "Content-type: ", 14)) {
  96                         wprintf("%s\r\n", buf);
  97                         found_content_type = 1;
  98                 }
  99                 if ((strlen(buf) == 0) && (in_body == 0)) {
 100                         if (!found_content_type) {
 101                                 wprintf("Content-type: text/plain\r\n");
 102                         }
 103                         in_body = 1;
 104                 }
 105                 if (in_body) {
 106                         wprintf("%s\r\n", buf);
 107                 }
 108         }
 109 }