source/carddav/carddav-connect.cpp

   1 // carddav-connect.cpp - CardDAV Object - Connect subroutines.
   2 //
   3 // (c) 2012-2015 Xestia Software Development.
   4 //
   5 // This file is part of Xestia Address Book.
   6 //
   7 // Xestia Address Book is free software: you can redistribute it and/or modify
   8 // it under the terms of the GNU General Public License as published by the
   9 // Free Software Foundation, version 3 of the license.
  10 //
  11 // Xestia Address Book is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with Xestia Address Book. If not, see <http://www.gnu.org/licenses/>
  18
  19 #include "carddav.h"
  20 #include "../version.h"
  21 #include <wx/wx.h>
  22 #include <wx/tokenzr.h>
  23 #include <wx/ffile.h>
  24 #include <libxml/parser.h>
  25 #include <libxml/tree.h>
  26 #include <map>
  27 #include <thread>
  28 #include "../vcard/vcard.h"
  29 #include "../common/dirs.h"
  30
  31 bool CardDAV::Connect(){
  32
  33         PageData.Clear();
  34         PageHeader.Clear();
  35
  36         SSLStatus = TRUE;
  37         AuthPassed = TRUE;
  38         AbortConnection = FALSE;
  39
  40         CURL *conn;
  41         CURLcode conncode;
  42         wxString ServerAddressURL;
  43         wxString ServerAuth;
  44         wxString ServerAddressSSL;
  45         wxString ServerAddressNormal;
  46
  47         conn = curl_easy_init();
  48
  49         struct CardDAVCURLPasser {
  50
  51                 CardDAV *Data;
  52                 bool HeaderMode = TRUE;
  53
  54         } CardDAVHeader, CardDAVFooter;
  55
  56         CardDAVHeader.Data = this;
  57         CardDAVHeader.HeaderMode = TRUE;
  58
  59         CardDAVFooter.Data = this;
  60         CardDAVFooter.HeaderMode = FALSE;
  61
  62         wxString Data1;
  63         wxString Data2;
  64
  65         ServerAddressURL = ServerAddress + wxT(":") + wxString::Format(wxT("%i"), ServerPort) + wxT("/");
  66         ServerAddressSSL = wxT("https://") + ServerAddressURL;
  67         ServerAddressNormal = wxT("http://") + ServerAddressURL;
  68
  69         ServerAuth = ServerUser + wxT(":") + ServerPass;
  70
  71         // Try SSL first.
  72
  73
  74         /*
  75         char *ServerAdrSSLChar = new char[(ServerAddressSSL.Length() - 1)];
  76         //memset(ServerAdrSSLChar, 0, ServerAddressSSL.Length());
  77         strncpy(ServerAdrSSLChar, (const char*)ServerAddressSSL.mb_str(wxConvUTF8), (ServerAddressSSL.Length() - 1));
  78
  79         char *ServerAdrNorChar = new char[(ServerAddressNormal.Length() - 1)];
  80         //memset(ServerAdrNorChar, 0, ServerAddressSSL.Length());
  81         strncpy(ServerAdrNorChar, (const char*)ServerAddressNormal.mb_str(wxConvUTF8), (ServerAddressNormal.Length() - 1));
  82
  83         char *ServerAuthChar = new char[(ServerAuth.Length() - 1)];
  84         //memset(ServerAuthChar, 0, ServerAddressSSL.Length());
  85         strncpy(ServerAuthChar, (const char*)ServerAuth.mb_str(wxConvUTF8), (ServerAuth.Length() - 1));
  86
  87         */
  88
  89         if (ServerSSL){
  90
  91                 union {
  92                         struct curl_slist       *certdata;
  93                         struct curl_certinfo    *certinfo;
  94                 } ptr;
  95
  96                 ptr.certdata = NULL;
  97
  98                 // Setup two initial connections and attempt to get the certificate data.
  99
 100                 curl_easy_setopt(conn, CURLOPT_URL, (const char*)ServerAddressSSL.mb_str(wxConvUTF8));
 101                 curl_easy_setopt(conn, CURLOPT_CERTINFO, 1);
 102
 103                 conncode = (curl_easy_perform(conn));
 104
 105                 // Check if the SSL certificate is valid or self-signed or some other
 106                 // error occured.
 107
 108                 if (conncode == CURLE_OK){
 109
 110                         // Connection is OK. Do nothing.
 111
 112                 } else if (conncode == CURLE_SSL_CACERT){
 113
 114                         // Post message saying SSL certificate is invalid.
 115
 116                         curl_easy_getinfo(conn, CURLINFO_CERTINFO, &ptr.certdata);
 117
 118                 } else {
 119
 120                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 121                                 curl_easy_strerror(conncode));
 122
 123                         ErrorMessage = wxString::Format(wxT("%s"), curl_easy_strerror(conncode));
 124
 125                         *ServerResult = FALSE;
 126                         return FALSE;
 127
 128                 }
 129
 130                 curl_easy_setopt(conn, CURLOPT_URL, (const char*)ServerAddressSSL.mb_str(wxConvUTF8));
 131                 curl_easy_setopt(conn, CURLOPT_NOPROGRESS, 1L);
 132                 curl_easy_setopt(conn, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 133                 curl_easy_setopt(conn, CURLOPT_TIMEOUT, 60);
 134                 curl_easy_setopt(conn, CURLOPT_FAILONERROR, TRUE);
 135                 curl_easy_setopt(conn, CURLOPT_USERAGENT, XSDAB_USERAGENT);
 136                 curl_easy_setopt(conn, CURLOPT_USERPWD, (const char*)ServerAuth.mb_str(wxConvUTF8));
 137                 curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, WritebackFunc);
 138                 curl_easy_setopt(conn, CURLOPT_WRITEDATA, &PageData);
 139                 curl_easy_setopt(conn, CURLOPT_WRITEHEADER, &PageHeader);
 140                 curl_easy_setopt(conn, CURLOPT_NOSIGNAL, 1);
 141                 curl_easy_setopt(conn, CURLOPT_CERTINFO, 1);
 142
 143                 if (AllowSelfSign == TRUE){
 144                         curl_easy_setopt(conn, CURLOPT_SSL_VERIFYPEER, 0L);
 145                         curl_easy_setopt(conn, CURLOPT_SSL_VERIFYHOST, 0L);
 146                 }
 147
 148                 conncode = (curl_easy_perform(conn));
 149
 150                 ptr.certdata = NULL;
 151
 152                 curl_easy_getinfo(conn, CURLINFO_CERTINFO, &ptr.certdata);
 153
 154                 if (conncode == CURLE_OK){
 155
 156                         // Process the server header response and look for
 157                         // 'addressbook' within the DAV header.
 158
 159                         wxStringTokenizer wxSHeaderLines(PageHeader, wxT("\r\n"));
 160                         wxString wxSHeaderLine;
 161                         std::map<int, wxString> DAVHeaderLines;
 162
 163                         while (wxSHeaderLines.HasMoreTokens()){
 164
 165                                 wxSHeaderLine = wxSHeaderLines.GetNextToken();
 166
 167                                 if (wxSHeaderLine.Mid(0, 4) == wxT("DAV:")){
 168
 169                                         // Look for address book in the line.
 170
 171                                         if (wxSHeaderLine.Find(wxT("addressbook")) != wxNOT_FOUND){
 172
 173                                                 HasCalDAVSupport = TRUE;
 174
 175                                         }
 176
 177                                 }
 178
 179                         }
 180
 181                         *ServerResult = TRUE;
 182                         ValidResponse = TRUE;
 183                         AuthPassed = TRUE;
 184                         SSLStatus = TRUE;
 185                         return TRUE;
 186
 187                 } else if (conncode == CURLE_HTTP_RETURNED_ERROR){
 188
 189                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 190                                         curl_easy_strerror(conncode));
 191
 192                         ErrorMessage = wxString::Format(wxT("%s"), curl_easy_strerror(conncode));
 193
 194                         *ServerResult = TRUE;
 195                         ValidResponse = FALSE;
 196                         AuthPassed = FALSE;
 197                         SSLStatus = TRUE;
 198                         return TRUE;
 199
 200                 } else {
 201
 202                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 203                                         curl_easy_strerror(conncode));
 204
 205                         ErrorMessage = wxString::Format(wxT("%s"), curl_easy_strerror(conncode));
 206
 207                         *ServerResult = FALSE;
 208                         return FALSE;
 209
 210                 }
 211
 212         } else {
 213
 214         // No SSL.
 215
 216                 curl_easy_setopt(conn, CURLOPT_URL, (const char*)ServerAddressNormal.mb_str(wxConvUTF8));
 217                 curl_easy_setopt(conn, CURLOPT_NOPROGRESS, 1L);
 218                 curl_easy_setopt(conn, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 219                 curl_easy_setopt(conn, CURLOPT_TIMEOUT, 60);
 220                 curl_easy_setopt(conn, CURLOPT_FAILONERROR, TRUE);
 221                 curl_easy_setopt(conn, CURLOPT_USERAGENT, XSDAB_USERAGENT);
 222                 curl_easy_setopt(conn, CURLOPT_USERPWD, (const char*)ServerAuth.mb_str(wxConvUTF8));
 223                 curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, WritebackFunc);
 224                 curl_easy_setopt(conn, CURLOPT_WRITEDATA, &PageData);
 225                 curl_easy_setopt(conn, CURLOPT_WRITEHEADER, &PageHeader);
 226                 curl_easy_setopt(conn, CURLOPT_NOSIGNAL, 1);
 227
 228                 conncode = (curl_easy_perform(conn));
 229
 230                 if (conncode == CURLE_OK){
 231
 232                         // Process the server header response and look for
 233                         // 'addressbook' within the DAV header.
 234
 235                         wxStringTokenizer wxSHeaderLines(PageHeader, wxT("\r\n"));
 236                         wxString wxSHeaderLine;
 237                         std::map<int, wxString> DAVHeaderLines;
 238
 239                         while (wxSHeaderLines.HasMoreTokens()){
 240
 241                                 wxSHeaderLine = wxSHeaderLines.GetNextToken();
 242
 243                                 if (wxSHeaderLine.Mid(0, 4) == wxT("DAV:")){
 244
 245                                         // Look for address book in the line.
 246
 247                                         if (wxSHeaderLine.Find(wxT("addressbook")) != wxNOT_FOUND){
 248
 249                                                 HasCalDAVSupport = TRUE;
 250
 251                                         }
 252
 253                                 }
 254
 255                         }
 256
 257                         *ServerResult = TRUE;
 258                         ValidResponse = TRUE;
 259                         AuthPassed = TRUE;
 260                         SSLStatus = FALSE;
 261                         return TRUE;
 262
 263                 } else if (conncode == CURLE_HTTP_RETURNED_ERROR){
 264
 265                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 266                                         curl_easy_strerror(conncode));
 267
 268                         *ServerResult = TRUE;
 269                         ValidResponse = FALSE;
 270                         AuthPassed = FALSE;
 271                         SSLStatus = FALSE;
 272                         return TRUE;
 273
 274                 } else {
 275
 276                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 277                                         curl_easy_strerror(conncode));
 278
 279                         *ServerResult = FALSE;
 280                         return FALSE;
 281
 282                 }
 283
 284                 // TODO: Double check and make sure HTTP Authentication is possible.
 285
 286         }
 287
 288         *ServerResult = TRUE;
 289         return TRUE;
 290
 291 }