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If a specific SASL authentication mechanism was requested by the user as part of the login options but wasn't supported by the server then curl would fallback to clear text, when it shouldn't, rather than reporting "No known authentication mechanisms supported" as the POP3 and SMTP protocols do.
105 lines
4.0 KiB
C
105 lines
4.0 KiB
C
#ifndef HEADER_CURL_IMAP_H
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#define HEADER_CURL_IMAP_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 2009 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "pingpong.h"
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/****************************************************************************
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* IMAP unique setup
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***************************************************************************/
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typedef enum {
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IMAP_STOP, /* do nothing state, stops the state machine */
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IMAP_SERVERGREET, /* waiting for the initial greeting immediately after
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a connect */
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IMAP_CAPABILITY,
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IMAP_STARTTLS,
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IMAP_UPGRADETLS, /* asynchronously upgrade the connection to SSL/TLS
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(multi mode only) */
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IMAP_AUTHENTICATE_PLAIN,
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IMAP_AUTHENTICATE_LOGIN,
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IMAP_AUTHENTICATE_LOGIN_PASSWD,
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IMAP_AUTHENTICATE_CRAMMD5,
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IMAP_AUTHENTICATE_DIGESTMD5,
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IMAP_AUTHENTICATE_DIGESTMD5_RESP,
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IMAP_AUTHENTICATE_NTLM,
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IMAP_AUTHENTICATE_NTLM_TYPE2MSG,
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IMAP_AUTHENTICATE_XOAUTH2,
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IMAP_AUTHENTICATE_CANCEL,
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IMAP_AUTHENTICATE_FINAL,
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IMAP_LOGIN,
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IMAP_LIST,
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IMAP_SELECT,
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IMAP_FETCH,
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IMAP_FETCH_FINAL,
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IMAP_APPEND,
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IMAP_APPEND_FINAL,
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IMAP_LOGOUT,
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IMAP_LAST /* never used */
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} imapstate;
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/* This IMAP struct is used in the SessionHandle. All IMAP data that is
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connection-oriented must be in imap_conn to properly deal with the fact that
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perhaps the SessionHandle is changed between the times the connection is
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used. */
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struct IMAP {
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curl_pp_transfer transfer;
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char *mailbox; /* Mailbox to select */
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char *uidvalidity; /* UIDVALIDITY to check in select */
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char *uid; /* Message UID to fetch */
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char *section; /* Message SECTION to fetch */
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char *custom; /* Custom request */
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char *custom_params; /* Parameters for the custom request */
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};
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/* imap_conn is used for struct connection-oriented data in the connectdata
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struct */
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struct imap_conn {
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struct pingpong pp;
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imapstate state; /* Always use imap.c:state() to change state! */
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bool ssldone; /* Is connect() over SSL done? */
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unsigned int authmechs; /* Accepted authentication mechanisms */
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unsigned int preftype; /* Preferred authentication type */
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unsigned int prefmech; /* Preferred authentication mechanism */
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unsigned int authused; /* Auth mechanism used for the connection */
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int cmdid; /* Last used command ID */
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char resptag[5]; /* Response tag to wait for */
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bool tls_supported; /* StartTLS capability supported by server */
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bool login_disabled; /* LOGIN command disabled by server */
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bool ir_supported; /* Initial response supported by server */
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char *mailbox; /* The last selected mailbox */
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char *mailbox_uidvalidity; /* UIDVALIDITY parsed from select response */
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};
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extern const struct Curl_handler Curl_handler_imap;
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extern const struct Curl_handler Curl_handler_imaps;
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/* Authentication type flags */
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#define IMAP_TYPE_CLEARTEXT (1 << 0)
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#define IMAP_TYPE_SASL (1 << 1)
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/* Authentication type values */
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#define IMAP_TYPE_NONE 0
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#define IMAP_TYPE_ANY ~0U
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#endif /* HEADER_CURL_IMAP_H */
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