#ifndef HEADER_CURL_POP3_H #define HEADER_CURL_POP3_H /*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 2009 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.haxx.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ***************************************************************************/ #include "pingpong.h" #include "curl_sasl.h" /**************************************************************************** * POP3 unique setup ***************************************************************************/ typedef enum { POP3_STOP, /* do nothing state, stops the state machine */ POP3_SERVERGREET, /* waiting for the initial greeting immediately after a connect */ POP3_CAPA, POP3_STARTTLS, POP3_UPGRADETLS, /* asynchronously upgrade the connection to SSL/TLS (multi mode only) */ POP3_AUTH, POP3_APOP, POP3_USER, POP3_PASS, POP3_COMMAND, POP3_QUIT, POP3_LAST /* never used */ } pop3state; /* This POP3 struct is used in the Curl_easy. All POP3 data that is connection-oriented must be in pop3_conn to properly deal with the fact that perhaps the Curl_easy is changed between the times the connection is used. */ struct POP3 { curl_pp_transfer transfer; char *id; /* Message ID */ char *custom; /* Custom Request */ }; /* pop3_conn is used for struct connection-oriented data in the connectdata struct */ struct pop3_conn { struct pingpong pp; pop3state state; /* Always use pop3.c:state() to change state! */ bool ssldone; /* Is connect() over SSL done? */ size_t eob; /* Number of bytes of the EOB (End Of Body) that have been received so far */ size_t strip; /* Number of bytes from the start to ignore as non-body */ struct SASL sasl; /* SASL-related storage */ unsigned int authtypes; /* Accepted authentication types */ unsigned int preftype; /* Preferred authentication type */ char *apoptimestamp; /* APOP timestamp from the server greeting */ bool tls_supported; /* StartTLS capability supported by server */ }; extern const struct Curl_handler Curl_handler_pop3; extern const struct Curl_handler Curl_handler_pop3s; /* Authentication type flags */ #define POP3_TYPE_CLEARTEXT (1 << 0) #define POP3_TYPE_APOP (1 << 1) #define POP3_TYPE_SASL (1 << 2) /* Authentication type values */ #define POP3_TYPE_NONE 0 #define POP3_TYPE_ANY ~0U /* This is the 5-bytes End-Of-Body marker for POP3 */ #define POP3_EOB "\x0d\x0a\x2e\x0d\x0a" #define POP3_EOB_LEN 5 /* This function scans the body after the end-of-body and writes everything * until the end is found */ CURLcode Curl_pop3_write(struct connectdata *conn, char *str, size_t nread); #endif /* HEADER_CURL_POP3_H */