camel/providers/nntp/camel-nntp-utils.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /* camel-nntp-utils.c : utilities used by the nntp code. */
   3
   4 /*
   5  * Author : Chris Toshok <toshok@helixcode.com>
   6  *
   7  * Copyright (C) 2000 Helix Code .
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of the
  12  * License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22  * USA
  23  */
  24
  25 #include "camel-folder-summary.h"
  26 #include "camel-nntp-folder.h"
  27 #include "camel-nntp-store.h"
  28 #include "camel-nntp-utils.h"
  29 #include "camel-stream-buffer.h"
  30 #include "camel-stream-mem.h"
  31
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 static void
  36 get_XOVER_headers(CamelNNTPStore *nntp_store, CamelFolder *folder,
  37                   int first_message, int last_message, CamelException *ex)
  38 {
  39         int status;
  40         CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
  41
  42         status = camel_nntp_command (nntp_store, NULL,
  43                                      "XOVER %d-%d",
  44                                      first_message,
  45                                      last_message);
  46
  47         if (status == CAMEL_NNTP_OK) {
  48                 CamelStream *nntp_istream = nntp_store->istream;
  49                 gboolean done = FALSE;
  50
  51                 while (!done) {
  52                         char *line;
  53
  54                         line = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER ( nntp_istream ));
  55
  56                         if (*line == '.') {
  57                                 done = TRUE;
  58                         }
  59                         else {
  60                                 CamelMessageInfo *new_info = g_new0(CamelMessageInfo, 1);
  61                                 char **split_line = g_strsplit (line, "\t", 7);
  62
  63                                 new_info->subject = g_strdup(split_line[1]);
  64                                 new_info->from = g_strdup(split_line[2]);
  65                                 new_info->to = g_strdup(nntp_folder->group_name);
  66                                 new_info->date_sent = header_decode_date(split_line[3], NULL);
  67 #if 0
  68                                 /* XXX do we need to fill in both dates? */
  69                                 new_info->headers.date_received = g_strdup(split_line[3]);
  70 #endif
  71                                 new_info->size = atoi(split_line[5]);
  72                                 new_info->uid = g_strdup(split_line[4]);
  73                                 g_strfreev (split_line);
  74
  75                                 camel_folder_summary_add (nntp_folder->summary, new_info);
  76                         }
  77                         g_free (line);
  78                 }
  79         }
  80 }
  81
  82 #if 0
  83 static GArray*
  84 get_HEAD_headers(CamelNNTPStore *nntp_store, CamelFolder *folder,
  85                  int first_message, int last_message, CamelException *ex)
  86 {
  87         int i;
  88         int status;
  89
  90         for (i = first_message; i < last_message; i ++) {
  91                 status = camel_nntp_command (nntp_store, NULL,
  92                                              "HEAD %d", i);
  93
  94                 if (status == CAMEL_NNTP_OK) {
  95                         gboolean done = FALSE;
  96                         char *buf;
  97                         int buf_len;
  98                         int buf_alloc;
  99                         int h;
 100                         CamelStream *header_stream;
 101                         GArray *header_array;
 102                         CamelStream *nntp_istream;
 103                         CamelMessageInfo *new_info = g_new0(CamelMessageInfo, 1);
 104
 105                         buf_alloc = 2048;
 106                         buf_len = 0;
 107                         buf = malloc(buf_alloc);
 108                         done = FALSE;
 109
 110                         buf[0] = 0;
 111
 112                         nntp_istream = nntp_store->istream;
 113
 114                         while (!done) {
 115                                 char *line;
 116                                 int line_length;
 117
 118                                 line = camel_stream_buffer_read_line (
 119                                                       CAMEL_STREAM_BUFFER ( nntp_istream ));
 120                                 line_length = strlen ( line );
 121
 122                                 if (*line == '.') {
 123                                         done = TRUE;
 124                                 }
 125                                 else {
 126                                         if (buf_len + line_length > buf_alloc) {
 127                                                 buf_alloc *= 2;
 128                                                 buf = realloc (buf, buf_alloc);
 129                                         }
 130                                         strcat(buf, line);
 131                                         strcat(buf, "\n");
 132                                         buf_len += strlen(line);
 133                                         g_free (line);
 134                                 }
 135                         }
 136
 137                         /* create a stream from which to parse the headers */
 138                         header_stream = camel_stream_mem_new_with_buffer(buf,
 139                                                                  buf_len,
 140                                                                  CAMEL_STREAM_MEM_READ);
 141
 142                         header_array = get_header_array_from_stream (header_stream);
 143
 144                         memset (&info, 0, sizeof(info));
 145
 146                         for (h = 0; h < header_array->len; h ++) {
 147                                 Rfc822Header *header = &((Rfc822Header*)header_array->data)[h];
 148                                 if (!g_strcasecmp(header->name, "From"))
 149                                         new_info->from = g_strdup(header->value);
 150                                 else if (!g_strcasecmp(header->name, "To"))
 151                                         new_info->to = g_strdup(header->value);
 152                                 else if (!g_strcasecmp(header->name, "Subject"))
 153                                         new_info->subject = g_strdup(header->value);
 154                                 else if (!g_strcasecmp(header->name, "Message-ID"))
 155                                         new_info->uid = g_strdup(header->value);
 156                                 else if (!g_strcasecmp(header->name, "Date")) {
 157                                         new_info->date_sent = header_decode_date (header->value);
 158 #if 0
 159                                         new_info->date_sent = g_strdup(header->value);
 160                                         new_info->date_received = g_strdup(header->value);
 161 #endif
 162                                 }
 163                         }
 164
 165                         camel_folder_summary_add (nntp_folder->summary, new_info);
 166                 }
 167                 else if (status == CAMEL_NNTP_FAIL) {
 168                         /* nasty things are afoot */
 169                         g_warning ("failure doing HEAD\n");
 170                         break;
 171                 }
 172         }
 173 }
 174 #endif
 175
 176 void
 177 camel_nntp_get_headers (CamelStore *store,
 178                         CamelNNTPFolder *nntp_folder,
 179                         CamelException *ex)
 180 {
 181         CamelNNTPStore *nntp_store = CAMEL_NNTP_STORE (store);
 182         CamelFolder *folder = CAMEL_FOLDER (nntp_folder);
 183         char *ret;
 184         int first_message, nb_message, last_message;
 185         int status;
 186
 187         status = camel_nntp_command (nntp_store, &ret,
 188                                      "GROUP %s", CAMEL_NNTP_FOLDER (folder)->group_name);
 189
 190         sscanf (ret, "%d %d %d", &nb_message, &first_message, &last_message);
 191         g_free (ret);
 192
 193         if (status != CAMEL_NNTP_OK) {
 194                 /* XXX throw invalid group exception */
 195                 printf ("invalid group\n");
 196                 return;
 197         }
 198
 199 #if 0
 200         if (nntp_store->extensions & CAMEL_NNTP_EXT_XOVER) {
 201 #endif
 202                 get_XOVER_headers (nntp_store, folder, first_message, last_message, ex);
 203 #if 0
 204         }
 205         else {
 206                 get_HEAD_headers (nntp_store, folder, first_message, last_message, ex);
 207         }
 208 #endif
 209 }
 210