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https://github.com/netfun2000/lcd4linux.git
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05ed83934d
added quit/logout to pop/imap git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@123 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
366 lines
8.0 KiB
C
366 lines
8.0 KiB
C
/* $Id: mail2.c,v 1.2 2001/03/15 11:10:53 ltoetsch Exp $
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*
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* mail: pop3, imap functions
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*
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* Copyright 2001 by Leopold Tötsch (lt@toetsch.at)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* $Log: mail2.c,v $
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* Revision 1.2 2001/03/15 11:10:53 ltoetsch
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* added quit/logout to pop/imap
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*
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* Revision 1.1 2001/03/14 13:19:29 ltoetsch
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* Added pop3/imap4 mail support
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*
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*
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* Exported Functions:
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*
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* int Mail_pop_imap(char *mbox, int *total_mails, int *unseen);
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* returns -1 on error, 0 on success
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*
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <malloc.h>
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#include <errno.h>
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#include "debug.h"
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#include "socket.h"
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#define PROTO_UNKNOWN -1
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#define PROTO_POP3 110
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#define PROTO_IMAP4 143
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/*
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* parse_proto()
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*
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* parse a MailboxN entry in 's' as
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*
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* proto:[user[:pass]@]machine[:port][/dir]
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*
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* 's' get's destroyed
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* returns 0 on success, -1 on error
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*
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*/
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static int parse_proto(char *s, int *proto, char **user, char **pass,
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char **machine, int *port, char **dir)
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{
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struct
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{
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char *prefix;
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int proto;
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}
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protos[] =
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{
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{ "pop3:", PROTO_POP3 },
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{ "imap4:", PROTO_IMAP4 },
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};
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int i;
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char *p, *q;
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static char empty[] = "";
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static char INBOX[] = "INBOX";
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*proto = *port = PROTO_UNKNOWN;
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for (i=0; i< sizeof(protos)/sizeof(protos[0]); i++)
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{
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if (memcmp(s, protos[i].prefix, strlen(protos[i].prefix)) == 0)
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{
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*proto = *port = protos[i].proto;
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break;
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}
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}
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if (*proto == PROTO_UNKNOWN)
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return -1;
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p = s + strlen(protos[i].prefix);
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/*
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* this might fail if user or pass contains a '/'
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*
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*/
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if ((q = strchr(p, '/')) != NULL)
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{
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/* /dir */
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*dir = q + 1;
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*q = '\0';
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}
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else
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*dir = empty;
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if ((q = strchr(p, '@')) != NULL)
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{
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/* user, pass is present */
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*machine = q + 1;
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*q = '\0';
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*user = p;
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if ((q = strchr(p, ':')) != NULL)
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{
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/* user[:pass] */
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*q = '\0';
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*pass = q+1;
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}
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else
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*pass = empty;
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}
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else
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{
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*machine = p;
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*user = *pass = empty;
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}
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if ((q = strchr(*machine, ':')) != NULL)
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{
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/* machine[:pass] */
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*q = '\0';
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*port = atoi(q+1);
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if (*port <= 0 || *port >= 0xffff)
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return -1;
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}
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if (!**machine)
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return -1;
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if (*proto == PROTO_POP3 && **dir)
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return -1;
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if (*proto == PROTO_IMAP4 && !**dir)
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*dir = INBOX;
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return 0;
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}
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/* write buffer, compare with match */
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#define BUFLEN 256
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static int wr_rd(int fd, char *buf, char *match,
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char *err, char *machine, int port)
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{
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int n;
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n = write_socket(fd, buf);
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if (n <= 0)
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{
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error("Couldn't write to %s:%d (%s)", machine, port, strerror(errno));
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close(fd);
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return -1;
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}
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n = read_socket_match(fd, buf, BUFLEN-1, match);
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if (n <= 0)
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{
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error("%s %s:%d (%s)", err, machine, port, strerror(errno));
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close(fd);
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return -1;
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}
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return n;
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}
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static int check_imap4(char *user, char *pass, char *machine,
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int port, char *dir, int *total, int *unseen)
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{
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int fd = open_socket(machine, port);
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int n;
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char buf[BUFLEN];
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char *p;
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if (fd < 0)
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{
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error("Couldn't connect to %s:%d (%s)", machine, port, strerror(errno));
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return -1;
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}
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n = read_socket_match(fd, buf, BUFLEN-1, "* OK");
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if (n <= 0) {
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error("Server doesn't respond %s:%d (%s)", machine, port, strerror(errno));
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close(fd);
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return -1;
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}
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sprintf(buf, ". LOGIN %s %s\r\n", user, pass);
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if (wr_rd(fd, buf, ". OK", "Wrong User/PASS?", machine, port) <= 0)
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return -1;
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sprintf(buf, ". STATUS %s (MESSAGES UNSEEN)\r\n", dir);
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if (wr_rd(fd, buf, "*", "Wrong dir?", machine, port) <= 0)
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return -1;
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if ((p = strstr(buf, "MESSAGES")) != NULL)
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sscanf(p, "%*s %d", total);
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else {
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error("Server doesn't provide MESSAGES (%s)", machine, port, strerror(errno));
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close(fd);
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return -1;
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}
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if ((p = strstr(buf, "UNSEEN")) != NULL)
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sscanf(p, "%*s %d", unseen);
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else {
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error("Server doesn't provide UNSEEN (%s)", machine, port, strerror(errno));
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close(fd);
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return -1;
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}
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strcpy(buf,". LOGOUT\r\n");
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wr_rd(fd, buf, "", "LOGOUT", machine, port);
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close(fd);
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return 0;
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}
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static int check_pop3(char *user, char *pass, char *machine,
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int port, int *total, int *unseen)
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{
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int fd = open_socket(machine, port);
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int n;
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char buf[BUFLEN];
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if (fd < 0)
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{
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error("Couldn't connect to %s:%d (%s)", machine, port, strerror(errno));
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return -1;
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}
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n = read_socket_match(fd, buf, BUFLEN-1, "+OK");
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if (n <= 0) {
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error("Server doesn't respond %s:%d (%s)", machine, port, strerror(errno));
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close(fd);
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return -1;
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}
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if (*user)
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{
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sprintf(buf, "USER %s\r\n", user);
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if (wr_rd(fd, buf, "+OK", "Wrong USER?", machine, port) <= 0)
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return -1;
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}
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if (*pass)
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{
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sprintf(buf, "PASS %s\r\n", pass);
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if (wr_rd(fd, buf, "+OK", "Wrong PASS?", machine, port) <= 0)
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return -1;
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}
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sprintf(buf, "STAT\r\n");
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if (wr_rd(fd, buf, "+OK", "Wrong STAT answer?", machine, port) <= 0)
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return -1;
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sscanf(buf, "+OK %d", total);
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if (*total) {
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sprintf(buf, "LAST\r\n");
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if (wr_rd(fd, buf, "+OK", "Wrong LAST answer?", machine, port) <= 0)
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return -1;
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sscanf(buf, "+OK %d", unseen);
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*unseen = *total - *unseen;
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}
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strcpy(buf, "QUIT\r\n");
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wr_rd(fd, buf, "+OK", "Quit", machine, port);
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close(fd);
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return 0;
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}
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int Mail_pop_imap(char *s, int *total, int *unseen)
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{
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int proto, port, ret;
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char *user, *pass, *machine, *dir, *ds;
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ds = strdup(s);
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if (ds == NULL)
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{
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error("Out of mem");
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return -1;
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}
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ret = parse_proto(ds, &proto, &user, &pass,
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&machine, &port, &dir) ;
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if (ret < 0)
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error("Not a pop3/imap4 mailbox");
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else
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ret = (proto == PROTO_POP3) ?
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check_pop3(user, pass, machine, port, total, unseen) :
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check_imap4(user, pass, machine, port, dir, total, unseen);
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free(ds);
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return ret;
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}
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#ifdef STANDALONE
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/*
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* test parse_proto with some garbage
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*
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*/
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int foreground = 1;
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int debugging = 3;
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/*
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* for STANDALONE tests, disable Text driver and
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*
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* cc -DSTANDALONE mail2.c socket.c debug.c -g -Wall -o mail2
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*
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*/
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#ifdef CHECK_PARSER
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static int test(char *s)
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{
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int ret;
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int proto, port;
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char *user, *pass, *machine, *dir, *ds;
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ds = strdup(s);
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ret = parse_proto(ds, &proto, &user, &pass,
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&machine, &port, &dir) ;
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printf("parse_proto(%s) ret=%d\n", s, ret);
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if (!ret)
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printf(
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"\tproto='%d'\n"
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"\tuser='%s'\n"
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"\tpass='%s'\n"
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"\tmachine='%s'\n"
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"\tport='%d'\n"
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"\tdir='%s'\n",
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proto,user,pass,machine,port,dir);
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free(ds);
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return ret;
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}
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#endif
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int main(int argc, char *argv[])
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{
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#ifdef CHECK_PARSER
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int i, ret;
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/* proto:[user[:pass]@]machine[:port][/dir] */
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char *t[] =
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{
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"pop3:sepp:Geheim@Rechner:123",
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"pop3:sepp@Rechner",
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"pop3:Rechner:123",
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"imap4:sepp:Geheim@Rechner/dir@/:pfad",
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"imap4:sepp:Geheim@Rechner",
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"imap4sepp:Geheim@Rechner/dir@/:pfad",
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"imap4:sepp:Geheim/Rechner/dir@/:pfad",
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"pop3:sepp@:",
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0
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};
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ret = 0;
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if (argc > 1)
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ret |= test(argv[1]);
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else
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for (i = 0; t[i]; i++)
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ret |= test(t[i]);
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return ret;
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# else
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int total = -1, unseen = -1;
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char *mbx = "imap4:user:pass@server/folder/file";
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int ret = Mail_pop_imap(mbx, &total, &unseen);
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printf("ret = %d, total = %d unseen = %d\n", ret, total, unseen);
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return ret;
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# endif
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}
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#endif
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