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/* ============================================================================ |
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* Douglas Thrift's Web Contact License |
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* |
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* Copyright (C) 2002, Douglas Thrift. All Rights Reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if any, must |
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* include the following acknowledgment: |
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* |
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* "This product includes software developed by Douglas Thrift |
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* (http://computers.douglasthrift.net/webcontact.html)." |
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* |
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* Alternately, this acknowledgment may appear in the software itself, if |
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* and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Douglas Thrift" and "Douglas Thrift's Web Contact" must not be |
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* used to endorse or promote products derived from this software without |
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* specific prior written permission. For written permission, please visit |
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* http://www.douglasthrift.net/contact.html for contact information. |
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* |
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* 5. Products derived from this software may not be called "Douglas Thrift's |
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* Web Contact", nor may "Douglas Thrift's Web Contact" appear in their |
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* name, without prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ============================================================================ |
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*/ |
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// Windows XP FAQ Poll |
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// |
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// Douglas Thrift |
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// |
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// IMAPHandler.cpp |
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|
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#include "IMAPHandler.h" |
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|
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IMAPHandler::IMAPHandler(const string& server, bool tls) |
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{ |
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letter = 'a'; |
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number = 0; |
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|
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this->tls = tls; |
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buffer = new char[BUFSIZ + 1]; |
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|
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#ifdef _WIN32 |
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if (WSAStartup(MAKEWORD(2, 0), &data) != 0) |
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{ |
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error(program + ": WSAStartup"); |
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exit(1); |
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} |
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#endif // _WIN32 |
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|
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if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) |
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{ |
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error(program + ": Socket"); |
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exit(1); |
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} |
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|
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sockaddr_in address; |
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hostent* host; |
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|
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address.sin_family = AF_INET; |
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|
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if ((host = gethostbyname(server.c_str())) == NULL) |
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{ |
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error(program + ": Host: " + server, true); |
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exit(1); |
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} |
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|
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address.sin_addr = *((in_addr*)*host->h_addr_list); |
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address.sin_port = htons(tls ? 993 : 143); |
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|
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if (connect(sock, (sockaddr*)&address, sizeof(sockaddr_in)) == |
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SOCKET_ERROR) |
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{ |
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error(program + ": Connect"); |
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exit(1); |
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} |
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|
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if (tls) |
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{ |
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SSL_load_error_strings(); |
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SSL_library_init(); |
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|
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char* seed = new char[BUFSIZ + 1]; |
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time_t moment = time(NULL); |
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sprintf(seed, "froofy%sfoofoo", ctime(&moment)); |
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|
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RAND_add(seed, strlen(seed), 0.007456); |
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|
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delete [] seed; |
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|
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ctx = SSL_CTX_new(TLSv1_client_method()); |
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if (ctx == NULL) |
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{ |
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cerr << program << ": SSL CTX New: " << |
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ERR_reason_error_string(ERR_get_error()) << "\n"; |
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exit(1); |
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} |
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|
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ssl = SSL_new(ctx); |
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|
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if (SSL_set_fd(ssl, sock) == 0) |
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{ |
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cerr << program << ": SSL Set FD: " << |
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ERR_reason_error_string(ERR_get_error()) << "\n"; |
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exit(1); |
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} |
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|
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if (int code = SSL_connect(ssl) <= 0) |
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{ |
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error(program + ": SSL Connect", code); |
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exit(1); |
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} |
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} |
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|
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getline(); |
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} |
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|
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IMAPHandler::~IMAPHandler() |
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{ |
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if (tls) |
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{ |
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SSL_shutdown(ssl); |
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SSL_free(ssl); |
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SSL_CTX_free(ctx); |
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} |
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|
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closesocket(sock); |
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|
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delete [] buffer; |
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|
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#ifdef _WIN32 |
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WSACleanup(); |
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#endif // _WIN32 |
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} |
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|
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string IMAPHandler::starttls() |
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{ |
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string answer = imap("STARTTLS"); |
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|
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if (success) |
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{ |
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tls = true; |
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|
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SSL_load_error_strings(); |
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SSL_library_init(); |
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|
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char* seed = new char[BUFSIZ + 1]; |
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time_t moment = time(NULL); |
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sprintf(seed, "froofy%sfoofoo", ctime(&moment)); |
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|
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RAND_add(seed, strlen(seed), 0.007456); |
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|
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delete [] seed; |
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|
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ctx = SSL_CTX_new(TLSv1_client_method()); |
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if (ctx == NULL) |
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{ |
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cerr << program << ": SSL CTX New: " << |
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ERR_reason_error_string(ERR_get_error()) << "\n"; |
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exit(1); |
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} |
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|
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ssl = SSL_new(ctx); |
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|
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if (SSL_set_fd(ssl, sock) == 0) |
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{ |
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cerr << program << ": SSL Set FD: " << |
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ERR_reason_error_string(ERR_get_error()) << "\n"; |
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exit(1); |
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} |
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|
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if (int code = SSL_connect(ssl) <= 0) |
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{ |
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error(program + ": SSL Connect", code); |
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exit(1); |
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} |
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} |
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|
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return answer; |
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} |
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|
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string IMAPHandler::command() |
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{ |
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char buffer[4]; |
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sprintf(buffer, "%03u", number++); |
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|
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string sequence = letter + string(buffer); |
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|
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if (number > 999) |
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{ |
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letter++; |
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number = 0; |
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} |
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|
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if (letter > 'z') |
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{ |
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letter = 'a'; |
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} |
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|
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return sequence; |
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} |
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|
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string IMAPHandler::imap(const string& imap) |
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{ |
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string result; |
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|
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string sequence = command(); |
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putline(sequence + " " + imap); |
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|
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while (true) |
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{ |
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string input = getline(); |
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|
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if (input.find(sequence + " OK") == 0) |
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{ |
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success = true; |
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break; |
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} |
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else if (input.find(sequence + " NO") == 0 || input.find(sequence + |
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" BAD") == 0) |
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{ |
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success = false; |
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break; |
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} |
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else |
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{ |
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result += input + "\r\n"; |
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} |
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} |
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|
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return result; |
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} |
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|
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string IMAPHandler::imap(const string& imap, const string& args) |
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{ |
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string result; |
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|
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string sequence = command(); |
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putline(sequence + " " + imap + " " + args); |
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|
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while (true) |
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{ |
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string input = getline(); |
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|
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if (input.find(sequence + " OK") == 0) |
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{ |
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success = true; |
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break; |
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} |
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else if (input.find(sequence + " NO") == 0 || input.find(sequence + |
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" BAD") == 0) |
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{ |
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success = false; |
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break; |
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} |
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else |
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{ |
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result += input + "\r\n"; |
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} |
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} |
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|
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return result; |
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} |
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|
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string IMAPHandler::imap(const string& imap, const string& args, const string& |
| 285 |
message) |
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{ |
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string result; |
| 288 |
|
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string sequence = command(); |
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putline(sequence + " " + imap + " " + args); |
| 291 |
putline(message); |
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|
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while (true) |
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{ |
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string input = getline(); |
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|
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if (input.find(sequence + " OK") == 0) |
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{ |
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success = true; |
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break; |
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} |
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else if (input.find(sequence + " NO") == 0 || input.find(sequence + |
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" BAD") == 0) |
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{ |
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success = false; |
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break; |
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} |
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else |
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{ |
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result += input + "\r\n"; |
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} |
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} |
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|
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return result; |
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} |
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|
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void IMAPHandler::putline(const string line) |
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{ |
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if (debug) cerr << line << "\n"; |
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|
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sprintf(buffer, "%s\r\n", line.c_str()); |
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|
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if (tls) |
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{ |
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if (int code = SSL_write(ssl, buffer, strlen(buffer)) <= 0) |
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{ |
| 327 |
error(program + ": SSL Write", code); |
| 328 |
exit(1); |
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} |
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} |
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else |
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{ |
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if (send(sock, buffer, strlen(buffer), 0) == SOCKET_ERROR) |
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{ |
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error(program + ": Send"); |
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exit(1); |
| 337 |
} |
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} |
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} |
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|
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string IMAPHandler::getline() |
| 342 |
{ |
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string line; |
| 344 |
char byte; |
| 345 |
|
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do |
| 347 |
{ |
| 348 |
if (tls) |
| 349 |
{ |
| 350 |
if (int code = SSL_read(ssl, &byte, 1) <= 0) |
| 351 |
{ |
| 352 |
error(program + ": SSL Read", code); |
| 353 |
exit(1); |
| 354 |
} |
| 355 |
} |
| 356 |
else |
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{ |
| 358 |
if (recv(sock, &byte, 1, 0) == SOCKET_ERROR) |
| 359 |
{ |
| 360 |
error(program + ": Recv"); |
| 361 |
exit(1); |
| 362 |
} |
| 363 |
} |
| 364 |
|
| 365 |
if (byte != '\r' && byte != '\n') |
| 366 |
{ |
| 367 |
line += byte; |
| 368 |
} |
| 369 |
} |
| 370 |
while (byte != '\n'); |
| 371 |
|
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if (debug) cerr << line << "\n"; |
| 373 |
|
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return line; |
| 375 |
} |
| 376 |
|
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void IMAPHandler::error(const string& prefix, bool host) |
| 378 |
{ |
| 379 |
#ifdef _WIN32 |
| 380 |
string error; |
| 381 |
|
| 382 |
switch (WSAGetLastError()) |
| 383 |
{ |
| 384 |
case WSAEACCES: |
| 385 |
error = "Permission denied."; |
| 386 |
break; |
| 387 |
case WSAEADDRINUSE: |
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error = "Address already in use."; |
| 389 |
break; |
| 390 |
case WSAEADDRNOTAVAIL: |
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error = "Cannot assign requested address."; |
| 392 |
break; |
| 393 |
case WSAEAFNOSUPPORT: |
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error = "Address family not supported by protocol family."; |
| 395 |
break; |
| 396 |
case WSAEALREADY: |
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error = "Operation already in progress."; |
| 398 |
break; |
| 399 |
case WSAECONNABORTED: |
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error = "Software caused connection abort."; |
| 401 |
break; |
| 402 |
case WSAECONNREFUSED: |
| 403 |
error = "Connection refused."; |
| 404 |
break; |
| 405 |
case WSAECONNRESET: |
| 406 |
error = "Connection reset by peer."; |
| 407 |
break; |
| 408 |
case WSAEDESTADDRREQ: |
| 409 |
error = "Destination address required."; |
| 410 |
break; |
| 411 |
case WSAEFAULT: |
| 412 |
error = "Bad address."; |
| 413 |
break; |
| 414 |
case WSAEHOSTDOWN: |
| 415 |
error = "Host is down."; |
| 416 |
break; |
| 417 |
case WSAEHOSTUNREACH: |
| 418 |
error = "No route to host."; |
| 419 |
break; |
| 420 |
case WSAEINPROGRESS: |
| 421 |
error = "Operation now in progress."; |
| 422 |
break; |
| 423 |
case WSAEINTR: |
| 424 |
error = "Interrupted function call."; |
| 425 |
break; |
| 426 |
case WSAEINVAL: |
| 427 |
error = "Invalid argument."; |
| 428 |
break; |
| 429 |
case WSAEISCONN: |
| 430 |
error = "Socket is already connected."; |
| 431 |
break; |
| 432 |
case WSAEMFILE: |
| 433 |
error = "Too many open files."; |
| 434 |
break; |
| 435 |
case WSAEMSGSIZE: |
| 436 |
error = "Message too long."; |
| 437 |
break; |
| 438 |
case WSAENETDOWN: |
| 439 |
error = "Network is down."; |
| 440 |
break; |
| 441 |
case WSAENETRESET: |
| 442 |
error = "Network dropped connection on reset."; |
| 443 |
break; |
| 444 |
case WSAENETUNREACH: |
| 445 |
error = "Network is unreachable."; |
| 446 |
break; |
| 447 |
case WSAENOBUFS: |
| 448 |
error = "No buffer space available."; |
| 449 |
break; |
| 450 |
case WSAENOPROTOOPT: |
| 451 |
error = "Bad protocol option."; |
| 452 |
break; |
| 453 |
case WSAENOTCONN: |
| 454 |
error = "Socket is not connected."; |
| 455 |
break; |
| 456 |
case WSAENOTSOCK: |
| 457 |
error = "Socket operation on non-socket."; |
| 458 |
break; |
| 459 |
case WSAEOPNOTSUPP: |
| 460 |
error = "Operation not supported."; |
| 461 |
break; |
| 462 |
case WSAEPFNOSUPPORT: |
| 463 |
error = "Protocol family not supported."; |
| 464 |
break; |
| 465 |
case WSAEPROCLIM: |
| 466 |
error = "Too many processes."; |
| 467 |
break; |
| 468 |
case WSAEPROTONOSUPPORT: |
| 469 |
error = "Protocol not supported."; |
| 470 |
break; |
| 471 |
case WSAEPROTOTYPE: |
| 472 |
error = "Protocol wrong type for socket."; |
| 473 |
break; |
| 474 |
case WSAESHUTDOWN: |
| 475 |
error = "Cannot send after socket shutdown."; |
| 476 |
break; |
| 477 |
case WSAESOCKTNOSUPPORT: |
| 478 |
error = "Socket type not supported."; |
| 479 |
break; |
| 480 |
case WSAETIMEDOUT: |
| 481 |
error = "Connection timed out."; |
| 482 |
break; |
| 483 |
case WSATYPE_NOT_FOUND: |
| 484 |
error = "Class type not found."; |
| 485 |
break; |
| 486 |
case WSAEWOULDBLOCK: |
| 487 |
error = "Resource temporarily unavailable."; |
| 488 |
break; |
| 489 |
case WSAHOST_NOT_FOUND: |
| 490 |
error = "Host not found."; |
| 491 |
break; |
| 492 |
case WSA_INVALID_HANDLE: |
| 493 |
error = "Specified event object handle is invalid."; |
| 494 |
break; |
| 495 |
case WSA_INVALID_PARAMETER: |
| 496 |
error = "One or more parameters are invalid."; |
| 497 |
break; |
| 498 |
// case WSAINVALIDPROCTABLE: |
| 499 |
// error = "Invalid procedure table from service provider."; |
| 500 |
// break; |
| 501 |
// case WSAINVALIDPROVIDER: |
| 502 |
// error = "Invalid service provider version number."; |
| 503 |
// break; |
| 504 |
case WSA_IO_INCOMPLETE: |
| 505 |
error = "Overlapped I/O event object not in signaled state."; |
| 506 |
break; |
| 507 |
case WSA_IO_PENDING: |
| 508 |
error = "Overlapped operations will complete later."; |
| 509 |
break; |
| 510 |
case WSA_NOT_ENOUGH_MEMORY: |
| 511 |
error = "Insufficient memory available."; |
| 512 |
break; |
| 513 |
case WSANOTINITIALISED: |
| 514 |
error = "Successful WSAStartup not yet performed."; |
| 515 |
break; |
| 516 |
case WSANO_DATA: |
| 517 |
error = "Valid name, no data record of requested type."; |
| 518 |
break; |
| 519 |
case WSANO_RECOVERY: |
| 520 |
error = "This is a non-recoverable error."; |
| 521 |
break; |
| 522 |
// case WSAPROVIDERFAILEDINIT: |
| 523 |
// error = "Unable to initialize a service provider."; |
| 524 |
// break; |
| 525 |
case WSASYSCALLFAILURE: |
| 526 |
error = "System call failure."; |
| 527 |
break; |
| 528 |
case WSASYSNOTREADY: |
| 529 |
error = "Network subsystem is unavailable."; |
| 530 |
break; |
| 531 |
case WSATRY_AGAIN: |
| 532 |
error = "Non-authoritative host not found."; |
| 533 |
break; |
| 534 |
case WSAVERNOTSUPPORTED: |
| 535 |
error = "WINSOCK.DLL version out of range."; |
| 536 |
break; |
| 537 |
case WSAEDISCON: |
| 538 |
error = "Graceful shutdown in progress."; |
| 539 |
break; |
| 540 |
case WSA_OPERATION_ABORTED: |
| 541 |
error = "Overlapped operation aborted."; |
| 542 |
break; |
| 543 |
default: |
| 544 |
error = "Unknown error."; |
| 545 |
break; |
| 546 |
} |
| 547 |
|
| 548 |
cerr << prefix << ": " << error << "\n"; |
| 549 |
#else |
| 550 |
if (host) |
| 551 |
{ |
| 552 |
herror(prefix.c_str()); |
| 553 |
} |
| 554 |
else |
| 555 |
{ |
| 556 |
perror(prefix.c_str()); |
| 557 |
} |
| 558 |
#endif // _WIN32 |
| 559 |
} |
| 560 |
|
| 561 |
void IMAPHandler::error(const string& prefix, int code) |
| 562 |
{ |
| 563 |
string error; |
| 564 |
|
| 565 |
switch (SSL_get_error(ssl, code)) |
| 566 |
{ |
| 567 |
case SSL_ERROR_NONE: |
| 568 |
error = "The TLS/SSL I/O operation completed."; |
| 569 |
break; |
| 570 |
case SSL_ERROR_ZERO_RETURN: |
| 571 |
error = "The TLS/SSL connection has been closed."; |
| 572 |
break; |
| 573 |
case SSL_ERROR_WANT_READ: |
| 574 |
case SSL_ERROR_WANT_WRITE: |
| 575 |
case SSL_ERROR_WANT_CONNECT: |
| 576 |
// case SSL_ERROR_WANT_ACCEPT: |
| 577 |
case SSL_ERROR_WANT_X509_LOOKUP: |
| 578 |
error = "The operation did not complete."; |
| 579 |
break; |
| 580 |
case SSL_ERROR_SYSCALL: |
| 581 |
if (int err = ERR_get_error() != 0) |
| 582 |
{ |
| 583 |
error = ERR_reason_error_string(err); |
| 584 |
} |
| 585 |
else |
| 586 |
{ |
| 587 |
switch (code) |
| 588 |
{ |
| 589 |
case 0: |
| 590 |
error = "An EOF was observed that violates the protocol."; |
| 591 |
break; |
| 592 |
case -1: |
| 593 |
this->error(prefix); |
| 594 |
return; |
| 595 |
default: |
| 596 |
error = "Unknown error."; |
| 597 |
break; |
| 598 |
} |
| 599 |
} |
| 600 |
break; |
| 601 |
case SSL_ERROR_SSL: |
| 602 |
error = ERR_reason_error_string(ERR_get_error()); |
| 603 |
break; |
| 604 |
default: |
| 605 |
error = "Unknown error."; |
| 606 |
break; |
| 607 |
} |
| 608 |
|
| 609 |
cerr << prefix << ": " << error << "\n"; |
| 610 |
} |
