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path: root/plugins/ProxySwitch/src/proxy.cpp
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/*
proxySwitch

The plugin watches IP address changes, reports them via popups and adjusts
the proxy settings of Miranda and Internet Explorer accordingly.
*/

#include "stdafx.h"

/* ################################################################################ */

int Enum_Settings(const char *szSetting,LPARAM lParam) {
  PPROXY_SETTINGS ps = (PPROXY_SETTINGS)lParam;

  if ( strcmp(szSetting, "NLUseProxy") != 0 && stricmp(szSetting, "useproxy") != 0 ) return 0;

  if ( ps->count >= ps->_alloc ) {
    ps->_alloc += 10;
    ps->item = (PPROXY_SETTING)mir_realloc( ps->item, ps->_alloc * sizeof(PROXY_SETTING) );
    ZeroMemory( &(ps->item[ps->count]), 10 * sizeof(PROXY_SETTING) );
  }
  strncpy( ps->item[ps->count].ModuleName, ps->_current_module, MAXLABELLENGTH-1 );
  strncpy( ps->item[ps->count].SettingName, szSetting, MAXLABELLENGTH-1 );
  ps->count++;

  return 0;
}

int Enum_Modules(const char *szModuleName,DWORD ofsModuleName,LPARAM lParam) {
  //DBCONTACTENUMSETTINGS e;
  MCONTACT hContact = NULL;

  ((PPROXY_SETTINGS)lParam)->_current_module = szModuleName;

  //e.pfnEnumProc = Enum_Settings;
  //e.lParam = lParam;
  //e.szModule = szModuleName;
  db_enum_settings(hContact, (DBSETTINGENUMPROC)Enum_Settings, szModuleName, (void*)lParam);
  //CallService(MS_DB_CONTACT_ENUMSETTINGS, (WPARAM)hContact,(LPARAM)&e);

  return 0;
}

/* ################################################################################ */

void Create_Proxy_Settings_List ( PPROXY_SETTINGS ps ) {

  ZeroMemory( ps, sizeof(PROXY_SETTINGS) );
  ps->_alloc = 10;
  ps->item = (PPROXY_SETTING)mir_alloc( ps->_alloc * sizeof(PROXY_SETTING) );
  ZeroMemory( ps->item, ps->_alloc * sizeof(PROXY_SETTING) );

  db_enum_modules((DBMODULEENUMPROC)Enum_Modules);
  //CallService(MS_DB_MODULES_ENUM, (WPARAM)ps, (LPARAM)Enum_Modules );

  ps->_alloc = ps->count+1;
  ps->item = (PPROXY_SETTING)mir_realloc( ps->item, ps->_alloc * sizeof(PROXY_SETTING) );
  ZeroMemory( &(ps->item[ps->count]), sizeof(PROXY_SETTING));
  ps->_current_module = NULL;
}

/* ################################################################################ */

void Free_Proxy_Settings_List( PPROXY_SETTINGS ps ) {
  if ( ps->item ) free( ps->item );
  ZeroMemory( ps, sizeof(PROXY_SETTINGS) );
}

/* ################################################################################ */

char Get_Miranda_Proxy_Status (void) {
  PROXY_SETTINGS ps;
  int i, p;
  char proxy;
  proxy = PROXY_NO_CONFIG;

  Create_Proxy_Settings_List( &ps );
  for ( i = 0 ; i < ps.count ; i++ ) {
    p = db_get_b(NULL,ps.item[i].ModuleName,ps.item[i].SettingName,FALSE);
    if (proxy == PROXY_NO_CONFIG) { proxy = p; continue; }
    if (proxy != p) { proxy = PROXY_MIXED; break; }
  }
  Free_Proxy_Settings_List( &ps );
  return proxy;
}

/* ################################################################################ */

void Set_Miranda_Proxy_Status (char proxy) {
  PROXY_SETTINGS ps;
  NETLIBUSERSETTINGS nlus;
  int i;

  if ( proxy < 0 ) return;
  Create_Proxy_Settings_List( &ps );
  for ( i = 0 ; i < ps.count ; i++ ) {
    if ( ps.item[i].SettingName[0] != 0 ) db_set_b(NULL,ps.item[i].ModuleName,ps.item[i].SettingName,proxy);
    ZeroMemory( &nlus, sizeof(nlus) );
    nlus.cbSize = sizeof(nlus);
    if (Netlib_GetUserSettingsByName(ps.item[i].ModuleName, &nlus) ) {
      nlus.useProxy = proxy;
      nlus.szProxyAuthPassword = NEWSTR_ALLOCA(nlus.szProxyAuthPassword);
      nlus.szProxyAuthUser = NEWSTR_ALLOCA(nlus.szProxyAuthUser);
      nlus.szProxyServer = NEWSTR_ALLOCA(nlus.szProxyServer);
      nlus.szIncomingPorts = NEWSTR_ALLOCA(nlus.szIncomingPorts);
      nlus.szOutgoingPorts = NEWSTR_ALLOCA(nlus.szOutgoingPorts);
	  Netlib_SetUserSettingsByName(ps.item[i].ModuleName, &nlus);
    }
  }
  Free_Proxy_Settings_List( &ps );
}

/* ################################################################################ */

char Get_IE_Proxy_Status (void) {
  INTERNET_PER_CONN_OPTION_LIST    list;
  INTERNET_PER_CONN_OPTION         option[1];
  unsigned long                    nSize = sizeof(INTERNET_PER_CONN_OPTION_LIST);

  option[0].dwOption = INTERNET_PER_CONN_FLAGS;

  list.dwSize = sizeof(INTERNET_PER_CONN_OPTION_LIST);
  list.pszConnection = NULL;
  list.dwOptionCount = 1;
  list.dwOptionError = 0;
  list.pOptions = option;

  if(!InternetQueryOption(NULL, INTERNET_OPTION_PER_CONNECTION_OPTION, &list, &nSize)) return -1;

  return
    option[0].Value.dwValue & PROXY_TYPE_PROXY ? 1 : 0;
}

/* ################################################################################ */

void Set_IE_Proxy_Status (char proxy) {
  INTERNET_PER_CONN_OPTION_LIST    list;
  INTERNET_PER_CONN_OPTION         option[1];
  unsigned long                    nSize = sizeof(INTERNET_PER_CONN_OPTION_LIST);

  if ( proxy < 0 ) return;
  option[0].dwOption = INTERNET_PER_CONN_FLAGS;
  option[0].Value.dwValue = proxy ? PROXY_TYPE_PROXY | PROXY_TYPE_DIRECT : PROXY_TYPE_DIRECT;

  list.dwSize = sizeof(INTERNET_PER_CONN_OPTION_LIST);
  list.pszConnection = NULL;
  list.dwOptionCount = 1;
  list.dwOptionError = 0;
  list.pOptions = option;

  if(!InternetSetOption(NULL, INTERNET_OPTION_PER_CONNECTION_OPTION, &list, nSize)) return;

  InternetQueryOption( NULL, INTERNET_OPTION_SETTINGS_CHANGED , NULL, 0 );
  InternetQueryOption( NULL, INTERNET_OPTION_REFRESH , NULL, 0 );
}

/* ################################################################################ */

char Get_Firefox_Proxy_Status (void) {
  wchar_t path[MAX_PATH];
  wchar_t prefs[MAX_PATH];
  char line[500];
  FILE *fP;
  struct _stat info;
  struct _wfinddata_t dir;
  long hFile;
  char *setting;
  int p, proxy;

  ZeroMemory(&info,  sizeof(info));
  proxy = PROXY_NO_CONFIG;
  if ( ! SHGetSpecialFolderPath(NULL, path, CSIDL_APPDATA, 0) ) return proxy;
  mir_wstrcat(path, L"\\Mozilla\\Firefox\\Profiles\\*");
  if( (hFile = _wfindfirst( path, &dir )) != -1L ) {
    do {
      if (! (dir.attrib & _A_SUBDIR) || dir.name[0] == '.') continue;
      mir_wstrcpy(prefs, path); prefs[mir_wstrlen(prefs)-1] = 0;
      mir_wstrcat(prefs, dir.name);
      mir_wstrcat(prefs, L"\\prefs.js");
      if ( (fP = _wfopen(prefs, L"r")) != NULL ) {
        p = 0;
        while ( fgets(line, 500, fP) ) {
          if ( (setting = strstr( line, "user_pref(\"network.proxy.type\",")) != NULL ) {
            setting += 31;
            p = atoi(setting);
            p = p == 3 ? 0 : p > 0;
            break;
          }
        }
        fclose(fP);
        proxy = proxy == -2 ? p : (proxy == p ? p : -1);
      }
    } while (_wfindnext( hFile, &dir ) == 0);
    _findclose( hFile );
  }
  return proxy;
}

/* ################################################################################ */

void Set_Firefox_Proxy_Status (char proxy) {
  wchar_t path[MAX_PATH];
  wchar_t prefsR[MAX_PATH];
  wchar_t prefsW[MAX_PATH];
  char line[500];
  FILE *fR, *fW;
  struct _stat info;
  struct _wfinddata_t dir;
  long hFile;
  char done;

  ZeroMemory(&info,  sizeof(info));
  if ( ! SHGetSpecialFolderPath(NULL, path, CSIDL_APPDATA, 0) ) return;
  mir_wstrcat(path, L"\\Mozilla\\Firefox\\Profiles\\*");
  if( (hFile = _wfindfirst( path, &dir )) != -1L ) {
    do {
      if (! (dir.attrib & _A_SUBDIR) || dir.name[0] == '.') continue;
      mir_wstrcpy(prefsR, path); prefsR[mir_wstrlen(prefsR)-1] = 0;
      mir_wstrcat(prefsR, dir.name);
      mir_wstrcat(prefsR, L"\\prefs.js");
      done = 0;
      if ((fR = _wfopen(prefsR, L"r")) != NULL) {
        mir_wstrcpy(prefsW, prefsR);
        mir_wstrcat(prefsW, L"~");
        if ((fW = _wfopen(prefsW, L"w")) != NULL) {
          while ( fgets(line, 500, fR) ) {
            if ( strstr( line, "\"network.proxy.type\"")) continue;
            if ( strstr( line, "\"network.proxy") && ! done) {
              fprintf(fW, "user_pref(\"network.proxy.type\", %d);\n", proxy);
              done = 1;
            }
            fprintf(fW, "%s", line);
          }
          if (! done) {
            fprintf(fW, "user_pref(\"network.proxy.type\", %d);\n", proxy);
            done = 1;
          }
          fclose(fW);
        }
        fclose(fR);
      }
      if ( done ) {
        _wremove(prefsR);
        _wrename(prefsW, prefsR);
      }
    } while (_wfindnext( hFile, &dir ) == 0);
    _findclose( hFile );
  }
}

/* ################################################################################ */

char Firefox_Installed(void) {
  wchar_t path[MAX_PATH];
  struct _stat info;
  ZeroMemory(&info,  sizeof(info));

  if ( SHGetSpecialFolderPath(NULL, path, CSIDL_APPDATA, 0) ) {
    mir_wstrcat(path, L"\\Mozilla\\Firefox\\Profiles");
    if ( _wstat(path, &info) == 0 && info.st_mode & _S_IFDIR == _S_IFDIR) {
      return 1;
    }
  }
  return 0;
}

/* ################################################################################ */

void Disconnect_All_Protocols (PPROTO_SETTINGS settings, int disconnect) {
  int count, c, i, status;
  PROTOCOLDESCRIPTOR **plist;

  Proto_EnumProtocols(&c, &plist);

  ZeroMemory( settings, sizeof (PROTO_SETTINGS) );
  settings->item = (PPROTO_SETTING)mir_alloc( c * sizeof(PROTO_SETTING) );
  ZeroMemory( settings->item, c * sizeof(PROTO_SETTING) );

  for( i=0 ; i<c ; i++ ) {
    if ( plist[i]->type != PROTOTYPE_PROTOCOL ) continue;
    if ( CallProtoService( plist[i]->szName, PS_GETCAPS, PFLAGNUM_2, 0 ) == 0 ) continue;
    status = CallProtoService( plist[i]->szName, PS_GETSTATUS, 0, 0 );
    mir_strncpy( settings->item[count].ProtoName, plist[i]->szName, MAXLABELLENGTH-1 );
    if ( status != ID_STATUS_OFFLINE && disconnect ) {
      CallProtoService( plist[i]->szName, PS_SETSTATUS, ID_STATUS_OFFLINE, 0 );
    }
    if ( status < MAX_CONNECT_RETRIES ) status = ID_STATUS_ONLINE;
    if ( status == ID_STATUS_OFFLINE ) status = ID_STATUS_ONLINE;
    settings->item[count].Status = status;
    count++;
  }
  settings->count = count;
}

/* ################################################################################ */

void Connect_All_Protocols (PPROTO_SETTINGS settings) {
  int i;
  for( i=0 ; i<settings->count ; i++ ) {
    CallProtoService( settings->item[i].ProtoName, PS_SETSTATUS, settings->item[i].Status, 0 );
  }
  free( settings->item );
  ZeroMemory( settings, sizeof (PROTO_SETTINGS) );
}