diff options
Diffstat (limited to 'camel/providers/pop3/camel-pop3-store.c')
-rw-r--r-- | camel/providers/pop3/camel-pop3-store.c | 614 |
1 files changed, 0 insertions, 614 deletions
diff --git a/camel/providers/pop3/camel-pop3-store.c b/camel/providers/pop3/camel-pop3-store.c deleted file mode 100644 index ddddf9f59f..0000000000 --- a/camel/providers/pop3/camel-pop3-store.c +++ /dev/null @@ -1,614 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* camel-pop3-store.c : class for a pop3 store */ - -/* - * Authors: - * Dan Winship <danw@helixcode.com> - * - * Copyright (C) 2000 Helix Code, Inc. (www.helixcode.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - */ - -#include "config.h" - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "camel-pop3-store.h" -#include "camel-pop3-folder.h" -#include "camel-stream-buffer.h" -#include "camel-stream-fs.h" -#include "camel-session.h" -#include "camel-exception.h" -#include "camel-url.h" -#include "md5-utils.h" - -/* Specified in RFC 1939 */ -#define POP3_PORT 110 - -#ifdef HAVE_KRB4 -/* Specified nowhere */ -#define KPOP_PORT 1109 - -#include <krb.h> -#endif - -static CamelServiceClass *service_class = NULL; - -static void finalize (GtkObject *object); - -static gboolean pop3_connect (CamelService *service, CamelException *ex); -static gboolean pop3_disconnect (CamelService *service, CamelException *ex); -static GList *query_auth_types (CamelService *service, CamelException *ex); -static void free_auth_types (CamelService *service, GList *authtypes); - -static CamelFolder *get_folder (CamelStore *store, const char *folder_name, - CamelException *ex); -static char *get_folder_name (CamelStore *store, const char *folder_name, - CamelException *ex); -static char *get_root_folder_name (CamelStore *store, CamelException *ex); - - -static void -camel_pop3_store_class_init (CamelPop3StoreClass *camel_pop3_store_class) -{ - GtkObjectClass *object_class = - GTK_OBJECT_CLASS (camel_pop3_store_class); - CamelServiceClass *camel_service_class = - CAMEL_SERVICE_CLASS (camel_pop3_store_class); - CamelStoreClass *camel_store_class = - CAMEL_STORE_CLASS (camel_pop3_store_class); - - service_class = gtk_type_class (camel_service_get_type ()); - - /* virtual method overload */ - object_class->finalize = finalize; - - camel_service_class->connect = pop3_connect; - camel_service_class->disconnect = pop3_disconnect; - camel_service_class->query_auth_types = query_auth_types; - camel_service_class->free_auth_types = free_auth_types; - - camel_store_class->get_folder = get_folder; - camel_store_class->get_folder_name = get_folder_name; - camel_store_class->get_root_folder_name = get_root_folder_name; -} - - - -static void -camel_pop3_store_init (gpointer object, gpointer klass) -{ - CamelService *service = CAMEL_SERVICE (object); - CamelStore *store = CAMEL_STORE (object); - - service->url_flags = ( CAMEL_SERVICE_URL_NEED_USER | - CAMEL_SERVICE_URL_NEED_HOST ); - store->folders = g_hash_table_new (g_str_hash, g_str_equal); -} - - - - -GtkType -camel_pop3_store_get_type (void) -{ - static GtkType camel_pop3_store_type = 0; - - if (!camel_pop3_store_type) { - GtkTypeInfo camel_pop3_store_info = - { - "CamelPop3Store", - sizeof (CamelPop3Store), - sizeof (CamelPop3StoreClass), - (GtkClassInitFunc) camel_pop3_store_class_init, - (GtkObjectInitFunc) camel_pop3_store_init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - camel_pop3_store_type = gtk_type_unique (CAMEL_STORE_TYPE, &camel_pop3_store_info); - } - - return camel_pop3_store_type; -} - -static void -finalize (GtkObject *object) -{ - CamelException ex; - - camel_exception_init (&ex); - pop3_disconnect (CAMEL_SERVICE (object), &ex); - camel_exception_clear (&ex); -} - - -static CamelServiceAuthType password_authtype = { - "Password", - - "This option will connect to the POP server using the APOP " - "protocol if possible, or a plaintext password if not.", - - "", - TRUE -}; - -#ifdef HAVE_KRB4 -static CamelServiceAuthType kpop_authtype = { - "Kerberos 4 (KPOP)", - - "This will connect to the POP server and use Kerberos 4 " - "to authenticate to it.", - - "+KPOP", - FALSE -}; -#endif - -static gboolean -try_connect (CamelService *service, CamelException *ex) -{ - struct hostent *h; - struct sockaddr_in sin; - int fd; - - h = camel_service_gethost (service, ex); - if (!h) - return FALSE; - - sin.sin_family = h->h_addrtype; - if (service->url->port) - sin.sin_port = htons (service->url->port); - else - sin.sin_port = htons (POP3_PORT); - memcpy (&sin.sin_addr, h->h_addr, sizeof (sin.sin_addr)); - - fd = socket (h->h_addrtype, SOCK_STREAM, 0); - if (fd == -1 || - connect (fd, (struct sockaddr *)&sin, sizeof(sin)) == -1) { - if (fd > -1) - close (fd); - return FALSE; - } - - close (fd); - return TRUE; -} - -static GList * -query_auth_types (CamelService *service, CamelException *ex) -{ - GList *ret = NULL; - gboolean passwd = TRUE; -#ifdef HAVE_KRB4 - gboolean kpop = TRUE; - int saved_port; -#endif - - if (service->url) { - passwd = try_connect (service, ex); - if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) - return NULL; -#ifdef HAVE_KRB4 - saved_port = service->url->port; - service->url->port = KPOP_PORT; - kpop = try_connect (service, ex); - service->url->port = saved_port; - if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) - return NULL; -#endif - } - - if (passwd) - ret = g_list_append (ret, &password_authtype); -#ifdef HAVE_KRB4 - if (kpop) - ret = g_list_append (ret, &kpop_authtype); -#endif - - if (!ret) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, - "Could not connect to POP server on " - "%s.", service->url->host); - } - - return ret; -} - -static void -free_auth_types (CamelService *service, GList *authtypes) -{ - g_list_free (authtypes); -} - -/** - * camel_pop3_store_open: Connect to the server if we are currently - * disconnected. - * @store: the store - * @ex: a CamelException - * - * The POP protocol does not allow deleted messages to be expunged - * except by closing the connection. Thus, camel_pop3_folder_{open,close} - * sometimes need to connect to or disconnect from the server. This - * routine reconnects to the server if we have disconnected. - * - **/ -void -camel_pop3_store_open (CamelPop3Store *store, CamelException *ex) -{ - CamelService *service = CAMEL_SERVICE (store); - - if (!camel_service_is_connected (service)) - pop3_connect (service, ex); -} - -/** - * camel_pop3_store_close: Close the connection to the server and - * possibly expunge deleted messages. - * @store: the store - * @expunge: whether or not to expunge deleted messages - * @ex: a CamelException - * - * See camel_pop3_store_open for an explanation of why this is needed. - * - **/ -void -camel_pop3_store_close (CamelPop3Store *store, gboolean expunge, - CamelException *ex) -{ - if (expunge) - camel_pop3_command (store, NULL, "QUIT"); - else - camel_pop3_command (store, NULL, "RSET"); - pop3_disconnect (CAMEL_SERVICE (store), ex); -} - -static gboolean -pop3_connect (CamelService *service, CamelException *ex) -{ - struct hostent *h; - struct sockaddr_in sin; - int fd, status; - char *buf, *apoptime, *apopend, *msg; - CamelPop3Store *store = CAMEL_POP3_STORE (service); -#ifdef HAVE_KRB4 - gboolean kpop = (service->url->authmech && - !strcmp (service->url->authmech, "+KPOP")); -#endif - - h = camel_service_gethost (service, ex); - if (!h) - return FALSE; - - if (!service->url->authmech && !service->url->passwd) { - char *prompt = g_strdup_printf ("Please enter the POP3 password for %s@%s", - service->url->user, h->h_name); - service->url->passwd = - camel_session_query_authenticator (camel_service_get_session (service), - prompt, TRUE, - service, "password", - ex); - g_free (prompt); - if (!service->url->passwd) - return FALSE; - } - - sin.sin_family = h->h_addrtype; - if (service->url->port) - sin.sin_port = service->url->port; -#ifdef HAVE_KRB4 - else if (kpop) - sin.sin_port = KPOP_PORT; -#endif - else - sin.sin_port = POP3_PORT; - sin.sin_port = htons (sin.sin_port); - memcpy (&sin.sin_addr, h->h_addr, sizeof (sin.sin_addr)); - - fd = socket (h->h_addrtype, SOCK_STREAM, 0); - if (fd == -1 || - connect (fd, (struct sockaddr *)&sin, sizeof(sin)) == -1) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, - "Could not connect to %s (port %s): %s", - service->url->host, service->url->port, - strerror(errno)); - if (fd > -1) - close (fd); - return FALSE; - } - -#ifdef HAVE_KRB4 - if (kpop) { - KTEXT_ST ticket_st; - MSG_DAT msg_data; - CREDENTIALS cred; - Key_schedule schedule; - char *hostname; - - /* Need to copy hostname, because krb_realmofhost will - * call gethostbyname as well, and gethostbyname uses - * static storage. - */ - hostname = g_strdup (h->h_name); - status = krb_sendauth (0, fd, &ticket_st, "pop", hostname, - krb_realmofhost (hostname), 0, - &msg_data, &cred, schedule, - NULL, NULL, "KPOPV0.1"); - g_free (hostname); - if (status != KSUCCESS) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, - "Could not authenticate to KPOP " - "server: %s", - krb_err_txt[status]); - close (fd); - return FALSE; - } - - if (!service->url->passwd) - service->url->passwd = g_strdup (service->url->user); - } -#endif /* HAVE_KRB4 */ - - store->ostream = camel_stream_fs_new_with_fd (fd); - store->istream = camel_stream_buffer_new (store->ostream, - CAMEL_STREAM_BUFFER_READ); - - /* Read the greeting, note APOP timestamp, if any. */ - buf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream), ex); - if (!buf) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, - "Could not read greeting from POP " - "server: %s", - camel_exception_get_description (ex)); - gtk_object_unref (GTK_OBJECT (store->ostream)); - gtk_object_unref (GTK_OBJECT (store->istream)); - return FALSE; - } - apoptime = strchr (buf, '<'); - apopend = apoptime ? strchr (apoptime, '>') : NULL; - if (apoptime && apopend) - apoptime = g_strndup (apoptime, apopend - apoptime + 1); - else - apoptime = NULL; - g_free (buf); - - /* Authenticate via APOP if we can, USER/PASS if we can't. */ - if (apoptime) { - char *secret, md5asc[32], *d; - unsigned char md5sum[16], *s; - - secret = g_strdup_printf ("%s%s", apoptime, - service->url->passwd); - md5_get_digest (secret, strlen (secret), md5sum); - g_free (apoptime); - g_free (secret); - - for (s = md5sum, d = md5asc; d < md5asc + 32; s++, d += 2) - sprintf (d, "%.2x", *s); - - status = camel_pop3_command (store, &msg, "APOP %s %s", - service->url->user, md5asc); - } else { - status = camel_pop3_command (store, &msg, "USER %s", - service->url->user); - if (status != CAMEL_POP3_OK) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_CANT_AUTHENTICATE, - "Unable to connect to POP " - "server. Error sending username:" - " %s", msg ? msg : "(Unknown)"); - g_free (msg); - gtk_object_unref (GTK_OBJECT (store->ostream)); - gtk_object_unref (GTK_OBJECT (store->istream)); - return FALSE; - } - - status = camel_pop3_command(store, &msg, "PASS %s", - service->url->passwd); - } - - if (status != CAMEL_POP3_OK) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_CANT_AUTHENTICATE, - "Unable to authenticate to POP " - "server. Error sending password:" - " %s", msg ? msg : "(Unknown)"); - g_free (msg); - gtk_object_unref (GTK_OBJECT (store->ostream)); - gtk_object_unref (GTK_OBJECT (store->istream)); - return FALSE; - } - - service_class->connect (service, ex); - return TRUE; -} - -static gboolean -pop3_disconnect (CamelService *service, CamelException *ex) -{ - CamelPop3Store *store = CAMEL_POP3_STORE (service); - - if (!service->connected) - return TRUE; - - if (!service_class->disconnect (service, ex)) - return FALSE; - - gtk_object_unref (GTK_OBJECT (store->ostream)); - gtk_object_unref (GTK_OBJECT (store->istream)); - store->ostream = NULL; - store->istream = NULL; - return TRUE; -} - -static CamelFolder * -get_folder (CamelStore *store, const char *folder_name, CamelException *ex) -{ - return camel_pop3_folder_new (store, ex); -} - -static char * -get_folder_name (CamelStore *store, const char *folder_name, - CamelException *ex) -{ - if (!g_strcasecmp (folder_name, "inbox")) - return g_strdup ("inbox"); - else { - camel_exception_setv (ex, CAMEL_EXCEPTION_FOLDER_INVALID, - "No such folder `%s'.", folder_name); - return NULL; - } -} - -static char * -get_root_folder_name (CamelStore *store, CamelException *ex) -{ - return g_strdup ("inbox"); -} - - -/** - * camel_pop3_command: Send a command to a POP3 server. - * @store: the POP3 store - * @ret: a pointer to return the full server response in - * @fmt: a printf-style format string, followed by arguments - * - * This command sends the command specified by @fmt and the following - * arguments to the connected POP3 store specified by @store. It then - * reads the server's response and parses out the status code. If - * the caller passed a non-NULL pointer for @ret, camel_pop3_command - * will set it to point to an buffer containing the rest of the - * response from the POP3 server. (If @ret was passed but there was - * no extended response, @ret will be set to NULL.) The caller must - * free this buffer when it is done with it. - * - * Return value: one of CAMEL_POP3_OK (command executed successfully), - * CAMEL_POP3_ERR (command encounted an error), or CAMEL_POP3_FAIL - * (a protocol-level error occurred, and Camel is uncertain of the - * result of the command.) - **/ -int -camel_pop3_command (CamelPop3Store *store, char **ret, char *fmt, ...) -{ - char *cmdbuf, *respbuf; - va_list ap; - int status; - CamelException *ex = camel_exception_new (); - - va_start (ap, fmt); - cmdbuf = g_strdup_vprintf (fmt, ap); - va_end (ap); - - /* Send the command */ - camel_stream_printf (store->ostream, ex, "%s\r\n", cmdbuf); - g_free (cmdbuf); - if (camel_exception_is_set (ex)) { - if (*ret) - *ret = g_strdup (camel_exception_get_description (ex)); - camel_exception_free (ex); - return CAMEL_POP3_FAIL; - } - - /* Read the response */ - respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream), ex); - if (camel_exception_is_set (ex)) { - if (*ret) - *ret = g_strdup (camel_exception_get_description (ex)); - camel_exception_free (ex); - return CAMEL_POP3_FAIL; - } - if (!strncmp (respbuf, "+OK", 3)) - status = CAMEL_POP3_OK; - else if (!strncmp (respbuf, "-ERR", 4)) - status = CAMEL_POP3_ERR; - else - status = CAMEL_POP3_FAIL; - - if (ret) { - if (status != CAMEL_POP3_FAIL) { - *ret = strchr (respbuf, ' '); - if (*ret) - *ret = g_strdup (*ret + 1); - } else - *ret = NULL; - } - g_free (respbuf); - - return status; -} - -/** - * camel_pop3_command_get_additional_data: get "additional data" from - * a POP3 command. - * @store: the POP3 store - * - * This command gets the additional data returned by "multi-line" POP - * commands, such as LIST, RETR, TOP, and UIDL. This command _must_ - * be called after a successful (CAMEL_POP3_OK) call to - * camel_pop3_command for a command that has a multi-line response. - * The returned data is un-byte-stuffed, and has lines termined by - * newlines rather than CR/LF pairs. - * - * Return value: the data, which the caller must free. - **/ -char * -camel_pop3_command_get_additional_data (CamelPop3Store *store, - CamelException *ex) -{ - CamelStreamBuffer *stream = CAMEL_STREAM_BUFFER (store->istream); - GPtrArray *data; - char *buf; - int i, status = CAMEL_POP3_OK; - - data = g_ptr_array_new (); - while (1) { - buf = camel_stream_buffer_read_line (stream, ex); - if (!buf) { - status = CAMEL_POP3_FAIL; - break; - } - - if (!strcmp (buf, ".")) - break; - if (*buf == '.') - memmove (buf, buf + 1, strlen (buf)); - g_ptr_array_add (data, buf); - } - - if (status == CAMEL_POP3_OK) { - /* Append an empty string to the end of the array - * so when we g_strjoinv it, we get a "\n" after - * the last real line. - */ - g_ptr_array_add (data, ""); - g_ptr_array_add (data, NULL); - buf = g_strjoinv ("\n", (char **)data->pdata); - } else - buf = NULL; - - for (i = 0; i < data->len - 2; i++) - g_free (data->pdata[i]); - g_ptr_array_free (data, TRUE); - - return buf; -} |