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         // Connect to the CardDAV server.
  34
  35         PageData.Clear();
  36         PageHeader.Clear();
  37
  38         SSLStatus = TRUE;
  39         AuthPassed = TRUE;
  40         AbortConnection = FALSE;
  41
  42         CURL *conn;
  43         CURLcode conncode;
  44         wxString ServerAddressURL;
  45         wxString ServerAuth;
  46         wxString ServerAddressSSL;
  47         wxString ServerAddressNormal;
  48
  49         conn = curl_easy_init();
  50
  51         struct CardDAVCURLPasser {
  52
  53                 CardDAV *Data;
  54                 bool HeaderMode = TRUE;
  55
  56         } CardDAVHeader, CardDAVFooter;
  57
  58         CardDAVHeader.Data = this;
  59         CardDAVHeader.HeaderMode = TRUE;
  60
  61         CardDAVFooter.Data = this;
  62         CardDAVFooter.HeaderMode = FALSE;
  63
  64         wxString Data1;
  65         wxString Data2;
  66
  67         ServerAddressURL = ServerAddress + wxT(":") + wxString::Format(wxT("%i"), ServerPort) + wxT("/");
  68         ServerAddressSSL = wxT("https://") + ServerAddressURL;
  69         ServerAddressNormal = wxT("http://") + ServerAddressURL;
  70
  71         ServerAuth = ServerUser + wxT(":") + ServerPass;
  72
  73         // Try SSL first.
  74
  75
  76         /*
  77         char *ServerAdrSSLChar = new char[(ServerAddressSSL.Length() - 1)];
  78         //memset(ServerAdrSSLChar, 0, ServerAddressSSL.Length());
  79         strncpy(ServerAdrSSLChar, (const char*)ServerAddressSSL.mb_str(wxConvUTF8), (ServerAddressSSL.Length() - 1));
  80
  81         char *ServerAdrNorChar = new char[(ServerAddressNormal.Length() - 1)];
  82         //memset(ServerAdrNorChar, 0, ServerAddressSSL.Length());
  83         strncpy(ServerAdrNorChar, (const char*)ServerAddressNormal.mb_str(wxConvUTF8), (ServerAddressNormal.Length() - 1));
  84
  85         char *ServerAuthChar = new char[(ServerAuth.Length() - 1)];
  86         //memset(ServerAuthChar, 0, ServerAddressSSL.Length());
  87         strncpy(ServerAuthChar, (const char*)ServerAuth.mb_str(wxConvUTF8), (ServerAuth.Length() - 1));
  88
  89         */
  90
  91         if (ServerSSL){
  92
  93                 union {
  94                         struct curl_slist       *certdata;
  95                         struct curl_certinfo    *certinfo;
  96                 } ptr;
  97
  98                 ptr.certdata = NULL;
  99
 100                 // Setup two initial connections and attempt to get the certificate data.
 101
 102                 curl_easy_setopt(conn, CURLOPT_URL, (const char*)ServerAddressSSL.mb_str(wxConvUTF8));
 103                 curl_easy_setopt(conn, CURLOPT_CERTINFO, 1);
 104
 105                 conncode = (curl_easy_perform(conn));
 106
 107                 // Check if the SSL certificate is valid or self-signed or some other
 108                 // error occured.
 109
 110                 if (conncode == CURLE_OK){
 111
 112                         // Connection is OK. Do nothing.
 113
 114                 } else if (conncode == CURLE_SSL_CACERT){
 115
 116                         // Post message saying SSL certificate is invalid.
 117
 118                         curl_easy_getinfo(conn, CURLINFO_CERTINFO, &ptr.certdata);
 119
 120                 } else {
 121
 122                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 123                                 curl_easy_strerror(conncode));
 124
 125                         ErrorMessage = wxString::Format(wxT("%s"), curl_easy_strerror(conncode));
 126
 127                         *ServerResult = FALSE;
 128                         return FALSE;
 129
 130                 }
 131
 132                 curl_easy_setopt(conn, CURLOPT_URL, (const char*)ServerAddressSSL.mb_str(wxConvUTF8));
 133                 curl_easy_setopt(conn, CURLOPT_NOPROGRESS, 1L);
 134                 curl_easy_setopt(conn, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 135                 curl_easy_setopt(conn, CURLOPT_TIMEOUT, 60);
 136                 curl_easy_setopt(conn, CURLOPT_FAILONERROR, TRUE);
 137                 curl_easy_setopt(conn, CURLOPT_USERAGENT, XSDAB_USERAGENT);
 138                 curl_easy_setopt(conn, CURLOPT_USERPWD, (const char*)ServerAuth.mb_str(wxConvUTF8));
 139                 curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, WritebackFunc);
 140                 curl_easy_setopt(conn, CURLOPT_WRITEDATA, &PageData);
 141                 curl_easy_setopt(conn, CURLOPT_WRITEHEADER, &PageHeader);
 142                 curl_easy_setopt(conn, CURLOPT_NOSIGNAL, 1);
 143                 curl_easy_setopt(conn, CURLOPT_CERTINFO, 1);
 144
 145                 if (AllowSelfSign == TRUE){
 146                         curl_easy_setopt(conn, CURLOPT_SSL_VERIFYPEER, 0L);
 147                         curl_easy_setopt(conn, CURLOPT_SSL_VERIFYHOST, 0L);
 148                 }
 149
 150                 conncode = (curl_easy_perform(conn));
 151
 152                 ptr.certdata = NULL;
 153
 154                 curl_easy_getinfo(conn, CURLINFO_CERTINFO, &ptr.certdata);
 155
 156                 if (conncode == CURLE_OK){
 157
 158                         // Process the server header response and look for
 159                         // 'addressbook' within the DAV header.
 160
 161                         wxStringTokenizer wxSHeaderLines(PageHeader, wxT("\r\n"));
 162                         wxString wxSHeaderLine;
 163                         std::map<int, wxString> DAVHeaderLines;
 164
 165                         while (wxSHeaderLines.HasMoreTokens()){
 166
 167                                 wxSHeaderLine = wxSHeaderLines.GetNextToken();
 168
 169                                 if (wxSHeaderLine.Mid(0, 4) == wxT("DAV:")){
 170
 171                                         // Look for address book in the line.
 172
 173                                         if (wxSHeaderLine.Find(wxT("addressbook")) != wxNOT_FOUND){
 174
 175                                                 HasCalDAVSupport = TRUE;
 176
 177                                         }
 178
 179                                 }
 180
 181                         }
 182
 183                         *ServerResult = TRUE;
 184                         ValidResponse = TRUE;
 185                         AuthPassed = TRUE;
 186                         SSLStatus = TRUE;
 187                         return TRUE;
 188
 189                 } else if (conncode == CURLE_HTTP_RETURNED_ERROR){
 190
 191                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 192                                         curl_easy_strerror(conncode));
 193
 194                         ErrorMessage = wxString::Format(wxT("%s"), curl_easy_strerror(conncode));
 195
 196                         *ServerResult = TRUE;
 197                         ValidResponse = FALSE;
 198                         AuthPassed = FALSE;
 199                         SSLStatus = TRUE;
 200                         return TRUE;
 201
 202                 } else {
 203
 204                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 205                                         curl_easy_strerror(conncode));
 206
 207                         ErrorMessage = wxString::Format(wxT("%s"), curl_easy_strerror(conncode));
 208
 209                         *ServerResult = FALSE;
 210                         return FALSE;
 211
 212                 }
 213
 214         } else {
 215
 216         // No SSL.
 217
 218                 curl_easy_setopt(conn, CURLOPT_URL, (const char*)ServerAddressNormal.mb_str(wxConvUTF8));
 219                 curl_easy_setopt(conn, CURLOPT_NOPROGRESS, 1L);
 220                 curl_easy_setopt(conn, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 221                 curl_easy_setopt(conn, CURLOPT_TIMEOUT, 60);
 222                 curl_easy_setopt(conn, CURLOPT_FAILONERROR, TRUE);
 223                 curl_easy_setopt(conn, CURLOPT_USERAGENT, XSDAB_USERAGENT);
 224                 curl_easy_setopt(conn, CURLOPT_USERPWD, (const char*)ServerAuth.mb_str(wxConvUTF8));
 225                 curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, WritebackFunc);
 226                 curl_easy_setopt(conn, CURLOPT_WRITEDATA, &PageData);
 227                 curl_easy_setopt(conn, CURLOPT_WRITEHEADER, &PageHeader);
 228                 curl_easy_setopt(conn, CURLOPT_NOSIGNAL, 1);
 229
 230                 conncode = (curl_easy_perform(conn));
 231
 232                 if (conncode == CURLE_OK){
 233
 234                         // Process the server header response and look for
 235                         // 'addressbook' within the DAV header.
 236
 237                         wxStringTokenizer wxSHeaderLines(PageHeader, wxT("\r\n"));
 238                         wxString wxSHeaderLine;
 239                         std::map<int, wxString> DAVHeaderLines;
 240
 241                         while (wxSHeaderLines.HasMoreTokens()){
 242
 243                                 wxSHeaderLine = wxSHeaderLines.GetNextToken();
 244
 245                                 if (wxSHeaderLine.Mid(0, 4) == wxT("DAV:")){
 246
 247                                         // Look for address book in the line.
 248
 249                                         if (wxSHeaderLine.Find(wxT("addressbook")) != wxNOT_FOUND){
 250
 251                                                 HasCalDAVSupport = TRUE;
 252
 253                                         }
 254
 255                                 }
 256
 257                         }
 258
 259                         *ServerResult = TRUE;
 260                         ValidResponse = TRUE;
 261                         AuthPassed = TRUE;
 262                         SSLStatus = FALSE;
 263                         return TRUE;
 264
 265                 } else if (conncode == CURLE_HTTP_RETURNED_ERROR){
 266
 267                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 268                                         curl_easy_strerror(conncode));
 269
 270                         *ServerResult = TRUE;
 271                         ValidResponse = FALSE;
 272                         AuthPassed = FALSE;
 273                         SSLStatus = FALSE;
 274                         return TRUE;
 275
 276                 } else {
 277
 278                         fprintf(stderr, "curl_easy_perform() failed: %s\n",
 279                                         curl_easy_strerror(conncode));
 280
 281                         *ServerResult = FALSE;
 282                         return FALSE;
 283
 284                 }
 285
 286                 // TODO: Double check and make sure HTTP Authentication is possible.
 287
 288         }
 289
 290         *ServerResult = TRUE;
 291         return TRUE;
 292
 293 }