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authorhiro <hiro@ee746299-78ed-0310-b773-934348b2243d>2005-01-12 11:22:08 +0000
committerhiro <hiro@ee746299-78ed-0310-b773-934348b2243d>2005-01-12 11:22:08 +0000
commitb9ca7b1ef5cd1f96ae6e28ae78d12c1e3258c23f (patch)
tree1203adec5f70af1ddd49868528d8d3a5b9004329 /src/pop.c
Initial import of Sylpheed (GTK2 version).
git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@1 ee746299-78ed-0310-b773-934348b2243d
Diffstat (limited to 'src/pop.c')
-rw-r--r--src/pop.c862
1 files changed, 862 insertions, 0 deletions
diff --git a/src/pop.c b/src/pop.c
new file mode 100644
index 00000000..483a076f
--- /dev/null
+++ b/src/pop.c
@@ -0,0 +1,862 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2004 Hiroyuki Yamamoto
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <glib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+
+#include "intl.h"
+#include "pop.h"
+#include "md5.h"
+#include "prefs_account.h"
+#include "utils.h"
+#include "recv.h"
+
+static gint pop3_greeting_recv (Pop3Session *session,
+ const gchar *msg);
+static gint pop3_getauth_user_send (Pop3Session *session);
+static gint pop3_getauth_pass_send (Pop3Session *session);
+static gint pop3_getauth_apop_send (Pop3Session *session);
+#if USE_SSL
+static gint pop3_stls_send (Pop3Session *session);
+static gint pop3_stls_recv (Pop3Session *session);
+#endif
+static gint pop3_getrange_stat_send (Pop3Session *session);
+static gint pop3_getrange_stat_recv (Pop3Session *session,
+ const gchar *msg);
+static gint pop3_getrange_last_send (Pop3Session *session);
+static gint pop3_getrange_last_recv (Pop3Session *session,
+ const gchar *msg);
+static gint pop3_getrange_uidl_send (Pop3Session *session);
+static gint pop3_getrange_uidl_recv (Pop3Session *session,
+ const gchar *data,
+ guint len);
+static gint pop3_getsize_list_send (Pop3Session *session);
+static gint pop3_getsize_list_recv (Pop3Session *session,
+ const gchar *data,
+ guint len);
+static gint pop3_retr_send (Pop3Session *session);
+static gint pop3_retr_recv (Pop3Session *session,
+ const gchar *data,
+ guint len);
+static gint pop3_delete_send (Pop3Session *session);
+static gint pop3_delete_recv (Pop3Session *session);
+static gint pop3_logout_send (Pop3Session *session);
+
+static void pop3_gen_send (Pop3Session *session,
+ const gchar *format, ...);
+
+static void pop3_session_destroy (Session *session);
+
+static gint pop3_write_msg_to_file (const gchar *file,
+ const gchar *data,
+ guint len);
+
+static Pop3State pop3_lookup_next (Pop3Session *session);
+static Pop3ErrorValue pop3_ok (Pop3Session *session,
+ const gchar *msg);
+
+static gint pop3_session_recv_msg (Session *session,
+ const gchar *msg);
+static gint pop3_session_recv_data_finished (Session *session,
+ guchar *data,
+ guint len);
+
+
+static gint pop3_greeting_recv(Pop3Session *session, const gchar *msg)
+{
+ session->state = POP3_GREETING;
+
+ session->greeting = g_strdup(msg);
+ return PS_SUCCESS;
+}
+
+#if USE_SSL
+static gint pop3_stls_send(Pop3Session *session)
+{
+ session->state = POP3_STLS;
+ pop3_gen_send(session, "STLS");
+ return PS_SUCCESS;
+}
+
+static gint pop3_stls_recv(Pop3Session *session)
+{
+ if (session_start_tls(SESSION(session)) < 0) {
+ session->error_val = PS_SOCKET;
+ return -1;
+ }
+ return PS_SUCCESS;
+}
+#endif /* USE_SSL */
+
+static gint pop3_getauth_user_send(Pop3Session *session)
+{
+ g_return_val_if_fail(session->user != NULL, -1);
+
+ session->state = POP3_GETAUTH_USER;
+ pop3_gen_send(session, "USER %s", session->user);
+ return PS_SUCCESS;
+}
+
+static gint pop3_getauth_pass_send(Pop3Session *session)
+{
+ g_return_val_if_fail(session->pass != NULL, -1);
+
+ session->state = POP3_GETAUTH_PASS;
+ pop3_gen_send(session, "PASS %s", session->pass);
+ return PS_SUCCESS;
+}
+
+static gint pop3_getauth_apop_send(Pop3Session *session)
+{
+ gchar *start, *end;
+ gchar *apop_str;
+ gchar md5sum[33];
+
+ g_return_val_if_fail(session->user != NULL, -1);
+ g_return_val_if_fail(session->pass != NULL, -1);
+
+ session->state = POP3_GETAUTH_APOP;
+
+ if ((start = strchr(session->greeting, '<')) == NULL) {
+ log_warning(_("Required APOP timestamp not found "
+ "in greeting\n"));
+ session->error_val = PS_PROTOCOL;
+ return -1;
+ }
+
+ if ((end = strchr(start, '>')) == NULL || end == start + 1) {
+ log_warning(_("Timestamp syntax error in greeting\n"));
+ session->error_val = PS_PROTOCOL;
+ return -1;
+ }
+
+ *(end + 1) = '\0';
+
+ apop_str = g_strconcat(start, session->pass, NULL);
+ md5_hex_digest(md5sum, apop_str);
+ g_free(apop_str);
+
+ pop3_gen_send(session, "APOP %s %s", session->user, md5sum);
+
+ return PS_SUCCESS;
+}
+
+static gint pop3_getrange_stat_send(Pop3Session *session)
+{
+ session->state = POP3_GETRANGE_STAT;
+ pop3_gen_send(session, "STAT");
+ return PS_SUCCESS;
+}
+
+static gint pop3_getrange_stat_recv(Pop3Session *session, const gchar *msg)
+{
+ if (sscanf(msg, "%d %d", &session->count, &session->total_bytes) != 2) {
+ log_warning(_("POP3 protocol error\n"));
+ session->error_val = PS_PROTOCOL;
+ return -1;
+ } else {
+ if (session->count == 0) {
+ session->uidl_is_valid = TRUE;
+ } else {
+ session->msg = g_new0(Pop3MsgInfo, session->count + 1);
+ session->cur_msg = 1;
+ }
+ }
+
+ return PS_SUCCESS;
+}
+
+static gint pop3_getrange_last_send(Pop3Session *session)
+{
+ session->state = POP3_GETRANGE_LAST;
+ pop3_gen_send(session, "LAST");
+ return PS_SUCCESS;
+}
+
+static gint pop3_getrange_last_recv(Pop3Session *session, const gchar *msg)
+{
+ gint last;
+
+ if (sscanf(msg, "%d", &last) == 0) {
+ log_warning(_("POP3 protocol error\n"));
+ session->error_val = PS_PROTOCOL;
+ return -1;
+ } else {
+ if (session->count > last) {
+ session->new_msg_exist = TRUE;
+ session->cur_msg = last + 1;
+ } else
+ session->cur_msg = 0;
+ }
+
+ return PS_SUCCESS;
+}
+
+static gint pop3_getrange_uidl_send(Pop3Session *session)
+{
+ session->state = POP3_GETRANGE_UIDL;
+ pop3_gen_send(session, "UIDL");
+ return PS_SUCCESS;
+}
+
+static gint pop3_getrange_uidl_recv(Pop3Session *session, const gchar *data,
+ guint len)
+{
+ gchar id[IDLEN + 1];
+ gchar buf[POPBUFSIZE];
+ gint buf_len;
+ gint num;
+ time_t recv_time;
+ const gchar *p = data;
+ const gchar *lastp = data + len;
+ const gchar *newline;
+
+ while (p < lastp) {
+ if ((newline = memchr(p, '\r', lastp - p)) == NULL)
+ return -1;
+ buf_len = MIN(newline - p, sizeof(buf) - 1);
+ memcpy(buf, p, buf_len);
+ buf[buf_len] = '\0';
+
+ p = newline + 1;
+ if (p < lastp && *p == '\n') p++;
+
+ if (sscanf(buf, "%d %" Xstr(IDLEN) "s", &num, id) != 2 ||
+ num <= 0 || num > session->count) {
+ log_warning(_("invalid UIDL response: %s\n"), buf);
+ continue;
+ }
+
+ session->msg[num].uidl = g_strdup(id);
+
+ recv_time = (time_t)g_hash_table_lookup(session->uidl_table, id);
+ session->msg[num].recv_time = recv_time;
+
+ if (!session->ac_prefs->getall && recv_time != RECV_TIME_NONE)
+ session->msg[num].received = TRUE;
+
+ if (!session->new_msg_exist &&
+ (session->ac_prefs->getall || recv_time == RECV_TIME_NONE ||
+ session->ac_prefs->rmmail)) {
+ session->cur_msg = num;
+ session->new_msg_exist = TRUE;
+ }
+ }
+
+ session->uidl_is_valid = TRUE;
+ return PS_SUCCESS;
+}
+
+static gint pop3_getsize_list_send(Pop3Session *session)
+{
+ session->state = POP3_GETSIZE_LIST;
+ pop3_gen_send(session, "LIST");
+ return PS_SUCCESS;
+}
+
+static gint pop3_getsize_list_recv(Pop3Session *session, const gchar *data,
+ guint len)
+{
+ gchar buf[POPBUFSIZE];
+ gint buf_len;
+ guint num, size;
+ const gchar *p = data;
+ const gchar *lastp = data + len;
+ const gchar *newline;
+
+ while (p < lastp) {
+ if ((newline = memchr(p, '\r', lastp - p)) == NULL)
+ return -1;
+ buf_len = MIN(newline - p, sizeof(buf) - 1);
+ memcpy(buf, p, buf_len);
+ buf[buf_len] = '\0';
+
+ p = newline + 1;
+ if (p < lastp && *p == '\n') p++;
+
+ if (sscanf(buf, "%u %u", &num, &size) != 2) {
+ session->error_val = PS_PROTOCOL;
+ return -1;
+ }
+
+ if (num > 0 && num <= session->count)
+ session->msg[num].size = size;
+ if (num > 0 && num < session->cur_msg)
+ session->cur_total_bytes += size;
+ }
+
+ return PS_SUCCESS;
+}
+
+static gint pop3_retr_send(Pop3Session *session)
+{
+ session->state = POP3_RETR;
+ pop3_gen_send(session, "RETR %d", session->cur_msg);
+ return PS_SUCCESS;
+}
+
+static gint pop3_retr_recv(Pop3Session *session, const gchar *data, guint len)
+{
+ gchar *file;
+ gint drop_ok;
+
+ file = get_tmp_file();
+ if (pop3_write_msg_to_file(file, data, len) < 0) {
+ g_free(file);
+ session->error_val = PS_IOERR;
+ return -1;
+ }
+
+ drop_ok = session->drop_message(session, file);
+ unlink(file);
+ g_free(file);
+ if (drop_ok < 0) {
+ session->error_val = PS_IOERR;
+ return -1;
+ }
+
+ session->cur_total_bytes += session->msg[session->cur_msg].size;
+ session->cur_total_recv_bytes += session->msg[session->cur_msg].size;
+ session->cur_total_num++;
+
+ session->msg[session->cur_msg].received = TRUE;
+ session->msg[session->cur_msg].recv_time =
+ drop_ok == DROP_DONT_RECEIVE ? RECV_TIME_KEEP
+ : drop_ok == DROP_DELETE ? RECV_TIME_DELETE
+ : session->current_time;
+
+ return PS_SUCCESS;
+}
+
+static gint pop3_delete_send(Pop3Session *session)
+{
+ session->state = POP3_DELETE;
+ pop3_gen_send(session, "DELE %d", session->cur_msg);
+ return PS_SUCCESS;
+}
+
+static gint pop3_delete_recv(Pop3Session *session)
+{
+ session->msg[session->cur_msg].deleted = TRUE;
+ return PS_SUCCESS;
+}
+
+static gint pop3_logout_send(Pop3Session *session)
+{
+ session->state = POP3_LOGOUT;
+ pop3_gen_send(session, "QUIT");
+ return PS_SUCCESS;
+}
+
+static void pop3_gen_send(Pop3Session *session, const gchar *format, ...)
+{
+ gchar buf[POPBUFSIZE + 1];
+ va_list args;
+
+ va_start(args, format);
+ g_vsnprintf(buf, sizeof(buf) - 2, format, args);
+ va_end(args);
+
+ if (!strncasecmp(buf, "PASS ", 5))
+ log_print("POP3> PASS ********\n");
+ else
+ log_print("POP3> %s\n", buf);
+
+ session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf);
+}
+
+Session *pop3_session_new(PrefsAccount *account)
+{
+ Pop3Session *session;
+
+ g_return_val_if_fail(account != NULL, NULL);
+
+ session = g_new0(Pop3Session, 1);
+
+ session_init(SESSION(session));
+
+ SESSION(session)->type = SESSION_POP3;
+
+ SESSION(session)->recv_msg = pop3_session_recv_msg;
+ SESSION(session)->recv_data_finished = pop3_session_recv_data_finished;
+ SESSION(session)->send_data_finished = NULL;
+
+ SESSION(session)->destroy = pop3_session_destroy;
+
+ session->state = POP3_READY;
+ session->ac_prefs = account;
+ session->uidl_table = pop3_get_uidl_table(account);
+ session->current_time = time(NULL);
+ session->error_val = PS_SUCCESS;
+ session->error_msg = NULL;
+
+ return SESSION(session);
+}
+
+static void pop3_session_destroy(Session *session)
+{
+ Pop3Session *pop3_session = POP3_SESSION(session);
+ gint n;
+
+ g_return_if_fail(session != NULL);
+
+ for (n = 1; n <= pop3_session->count; n++)
+ g_free(pop3_session->msg[n].uidl);
+ g_free(pop3_session->msg);
+
+ if (pop3_session->uidl_table) {
+ hash_free_strings(pop3_session->uidl_table);
+ g_hash_table_destroy(pop3_session->uidl_table);
+ }
+
+ g_free(pop3_session->greeting);
+ g_free(pop3_session->user);
+ g_free(pop3_session->pass);
+ g_free(pop3_session->error_msg);
+}
+
+GHashTable *pop3_get_uidl_table(PrefsAccount *ac_prefs)
+{
+ GHashTable *table;
+ gchar *path;
+ FILE *fp;
+ gchar buf[POPBUFSIZE];
+ gchar uidl[POPBUFSIZE];
+ time_t recv_time;
+ time_t now;
+
+ table = g_hash_table_new(g_str_hash, g_str_equal);
+
+ path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
+ "uidl", G_DIR_SEPARATOR_S, ac_prefs->recv_server,
+ "-", ac_prefs->userid, NULL);
+ if ((fp = fopen(path, "rb")) == NULL) {
+ if (ENOENT != errno) FILE_OP_ERROR(path, "fopen");
+ g_free(path);
+ path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
+ "uidl-", ac_prefs->recv_server,
+ "-", ac_prefs->userid, NULL);
+ if ((fp = fopen(path, "rb")) == NULL) {
+ if (ENOENT != errno) FILE_OP_ERROR(path, "fopen");
+ g_free(path);
+ return table;
+ }
+ }
+ g_free(path);
+
+ now = time(NULL);
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ strretchomp(buf);
+ recv_time = RECV_TIME_NONE;
+ if (sscanf(buf, "%s\t%ld", uidl, &recv_time) != 2) {
+ if (sscanf(buf, "%s", uidl) != 1)
+ continue;
+ else
+ recv_time = now;
+ }
+ if (recv_time == RECV_TIME_NONE)
+ recv_time = RECV_TIME_RECEIVED;
+ g_hash_table_insert(table, g_strdup(uidl),
+ GINT_TO_POINTER(recv_time));
+ }
+
+ fclose(fp);
+ return table;
+}
+
+gint pop3_write_uidl_list(Pop3Session *session)
+{
+ gchar *path;
+ FILE *fp;
+ Pop3MsgInfo *msg;
+ gint n;
+
+ if (!session->uidl_is_valid) return 0;
+
+ path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
+ "uidl", G_DIR_SEPARATOR_S,
+ session->ac_prefs->recv_server,
+ "-", session->ac_prefs->userid, NULL);
+ if ((fp = fopen(path, "wb")) == NULL) {
+ FILE_OP_ERROR(path, "fopen");
+ g_free(path);
+ return -1;
+ }
+
+ for (n = 1; n <= session->count; n++) {
+ msg = &session->msg[n];
+ if (msg->uidl && msg->received && !msg->deleted)
+ fprintf(fp, "%s\t%ld\n", msg->uidl, msg->recv_time);
+ }
+
+ if (fclose(fp) == EOF) FILE_OP_ERROR(path, "fclose");
+ g_free(path);
+
+ return 0;
+}
+
+static gint pop3_write_msg_to_file(const gchar *file, const gchar *data,
+ guint len)
+{
+ FILE *fp;
+ const gchar *prev, *cur;
+
+ g_return_val_if_fail(file != NULL, -1);
+
+ if ((fp = fopen(file, "wb")) == NULL) {
+ FILE_OP_ERROR(file, "fopen");
+ return -1;
+ }
+
+ if (change_file_mode_rw(fp, file) < 0)
+ FILE_OP_ERROR(file, "chmod");
+
+ /* +------------------+----------------+--------------------------+ *
+ * ^data ^prev ^cur data+len-1^ */
+
+ prev = data;
+ while ((cur = (gchar *)my_memmem(prev, len - (prev - data), "\r\n", 2))
+ != NULL) {
+ if ((cur > prev && fwrite(prev, cur - prev, 1, fp) < 1) ||
+ fputc('\n', fp) == EOF) {
+ FILE_OP_ERROR(file, "fwrite");
+ g_warning("can't write to file: %s\n", file);
+ fclose(fp);
+ unlink(file);
+ return -1;
+ }
+
+ if (cur == data + len - 1) {
+ prev = cur + 1;
+ break;
+ }
+
+ if (*(cur + 1) == '\n')
+ prev = cur + 2;
+ else
+ prev = cur + 1;
+
+ if (prev - data < len - 1 && *prev == '.' && *(prev + 1) == '.')
+ prev++;
+
+ if (prev - data >= len)
+ break;
+ }
+
+ if (prev - data < len &&
+ fwrite(prev, len - (prev - data), 1, fp) < 1) {
+ FILE_OP_ERROR(file, "fwrite");
+ g_warning("can't write to file: %s\n", file);
+ fclose(fp);
+ unlink(file);
+ return -1;
+ }
+ if (data[len - 1] != '\r' && data[len - 1] != '\n') {
+ if (fputc('\n', fp) == EOF) {
+ FILE_OP_ERROR(file, "fputc");
+ g_warning("can't write to file: %s\n", file);
+ fclose(fp);
+ unlink(file);
+ return -1;
+ }
+ }
+
+ if (fclose(fp) == EOF) {
+ FILE_OP_ERROR(file, "fclose");
+ unlink(file);
+ return -1;
+ }
+
+ return 0;
+}
+
+static Pop3State pop3_lookup_next(Pop3Session *session)
+{
+ Pop3MsgInfo *msg;
+ PrefsAccount *ac = session->ac_prefs;
+ gint size;
+ gboolean size_limit_over;
+
+ for (;;) {
+ msg = &session->msg[session->cur_msg];
+ size = msg->size;
+ size_limit_over =
+ (ac->enable_size_limit &&
+ ac->size_limit > 0 &&
+ size > ac->size_limit * 1024);
+
+ if (msg->recv_time == RECV_TIME_DELETE ||
+ (ac->rmmail &&
+ msg->recv_time != RECV_TIME_NONE &&
+ msg->recv_time != RECV_TIME_KEEP &&
+ session->current_time - msg->recv_time >=
+ ac->msg_leave_time * 24 * 60 * 60)) {
+ log_print(_("POP3: Deleting expired message %d\n"),
+ session->cur_msg);
+ pop3_delete_send(session);
+ return POP3_DELETE;
+ }
+
+ if (size_limit_over)
+ log_print
+ (_("POP3: Skipping message %d (%d bytes)\n"),
+ session->cur_msg, size);
+
+ if (size == 0 || msg->received || size_limit_over) {
+ session->cur_total_bytes += size;
+ if (session->cur_msg == session->count) {
+ pop3_logout_send(session);
+ return POP3_LOGOUT;
+ } else
+ session->cur_msg++;
+ } else
+ break;
+ }
+
+ pop3_retr_send(session);
+ return POP3_RETR;
+}
+
+static Pop3ErrorValue pop3_ok(Pop3Session *session, const gchar *msg)
+{
+ Pop3ErrorValue ok;
+
+ log_print("POP3< %s\n", msg);
+
+ if (!strncmp(msg, "+OK", 3))
+ ok = PS_SUCCESS;
+ else if (!strncmp(msg, "-ERR", 4)) {
+ if (strstr(msg + 4, "lock") ||
+ strstr(msg + 4, "Lock") ||
+ strstr(msg + 4, "LOCK") ||
+ strstr(msg + 4, "wait")) {
+ log_warning(_("mailbox is locked\n"));
+ ok = PS_LOCKBUSY;
+ } else if (strcasestr(msg + 4, "timeout")) {
+ log_warning(_("session timeout\n"));
+ ok = PS_ERROR;
+ } else {
+ switch (session->state) {
+#if USE_SSL
+ case POP3_STLS:
+ log_warning(_("can't start TLS session\n"));
+ ok = PS_ERROR;
+ break;
+#endif
+ case POP3_GETAUTH_USER:
+ case POP3_GETAUTH_PASS:
+ case POP3_GETAUTH_APOP:
+ log_warning(_("error occurred on authentication\n"));
+ ok = PS_AUTHFAIL;
+ break;
+ case POP3_GETRANGE_LAST:
+ case POP3_GETRANGE_UIDL:
+ log_warning(_("command not supported\n"));
+ ok = PS_NOTSUPPORTED;
+ break;
+ default:
+ log_warning(_("error occurred on POP3 session\n"));
+ ok = PS_ERROR;
+ }
+ }
+
+ g_free(session->error_msg);
+ session->error_msg = g_strdup(msg);
+ fprintf(stderr, "POP3: %s\n", msg);
+ } else
+ ok = PS_PROTOCOL;
+
+ session->error_val = ok;
+ return ok;
+}
+
+static gint pop3_session_recv_msg(Session *session, const gchar *msg)
+{
+ Pop3Session *pop3_session = POP3_SESSION(session);
+ Pop3ErrorValue val = PS_SUCCESS;
+ const guchar *body;
+
+ body = msg;
+ if (pop3_session->state != POP3_GETRANGE_UIDL_RECV &&
+ pop3_session->state != POP3_GETSIZE_LIST_RECV) {
+ val = pop3_ok(pop3_session, msg);
+ if (val != PS_SUCCESS) {
+ if (val != PS_NOTSUPPORTED) {
+ pop3_session->state = POP3_ERROR;
+ return -1;
+ }
+ }
+
+ if (*body == '+' || *body == '-')
+ body++;
+ while (isalpha(*body))
+ body++;
+ while (isspace(*body))
+ body++;
+ }
+
+ switch (pop3_session->state) {
+ case POP3_READY:
+ case POP3_GREETING:
+ pop3_greeting_recv(pop3_session, body);
+#if USE_SSL
+ if (pop3_session->ac_prefs->ssl_pop == SSL_STARTTLS)
+ pop3_stls_send(pop3_session);
+ else
+#endif
+ if (pop3_session->ac_prefs->use_apop_auth)
+ pop3_getauth_apop_send(pop3_session);
+ else
+ pop3_getauth_user_send(pop3_session);
+ break;
+#if USE_SSL
+ case POP3_STLS:
+ if (pop3_stls_recv(pop3_session) != PS_SUCCESS)
+ return -1;
+ if (pop3_session->ac_prefs->use_apop_auth)
+ pop3_getauth_apop_send(pop3_session);
+ else
+ pop3_getauth_user_send(pop3_session);
+ break;
+#endif
+ case POP3_GETAUTH_USER:
+ pop3_getauth_pass_send(pop3_session);
+ break;
+ case POP3_GETAUTH_PASS:
+ case POP3_GETAUTH_APOP:
+ pop3_getrange_stat_send(pop3_session);
+ break;
+ case POP3_GETRANGE_STAT:
+ if (pop3_getrange_stat_recv(pop3_session, body) < 0)
+ return -1;
+ if (pop3_session->count > 0)
+ pop3_getrange_uidl_send(pop3_session);
+ else
+ pop3_logout_send(pop3_session);
+ break;
+ case POP3_GETRANGE_LAST:
+ if (val == PS_NOTSUPPORTED)
+ pop3_session->error_val = PS_SUCCESS;
+ else if (pop3_getrange_last_recv(pop3_session, body) < 0)
+ return -1;
+ if (pop3_session->cur_msg > 0)
+ pop3_getsize_list_send(pop3_session);
+ else
+ pop3_logout_send(pop3_session);
+ break;
+ case POP3_GETRANGE_UIDL:
+ if (val == PS_NOTSUPPORTED) {
+ pop3_session->error_val = PS_SUCCESS;
+ pop3_getrange_last_send(pop3_session);
+ } else {
+ pop3_session->state = POP3_GETRANGE_UIDL_RECV;
+ session_recv_data(session, 0, ".\r\n");
+ }
+ break;
+ case POP3_GETSIZE_LIST:
+ pop3_session->state = POP3_GETSIZE_LIST_RECV;
+ session_recv_data(session, 0, ".\r\n");
+ break;
+ case POP3_RETR:
+ pop3_session->state = POP3_RETR_RECV;
+ session_recv_data(session, 0, ".\r\n");
+ break;
+ case POP3_DELETE:
+ pop3_delete_recv(pop3_session);
+ if (pop3_session->cur_msg == pop3_session->count)
+ pop3_logout_send(pop3_session);
+ else {
+ pop3_session->cur_msg++;
+ if (pop3_lookup_next(pop3_session) == POP3_ERROR)
+ return -1;
+ }
+ break;
+ case POP3_LOGOUT:
+ session_disconnect(session);
+ break;
+ case POP3_ERROR:
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+static gint pop3_session_recv_data_finished(Session *session, guchar *data,
+ guint len)
+{
+ Pop3Session *pop3_session = POP3_SESSION(session);
+ Pop3ErrorValue val = PS_SUCCESS;
+
+ switch (pop3_session->state) {
+ case POP3_GETRANGE_UIDL_RECV:
+ val = pop3_getrange_uidl_recv(pop3_session, data, len);
+ if (val == PS_SUCCESS) {
+ if (pop3_session->new_msg_exist)
+ pop3_getsize_list_send(pop3_session);
+ else
+ pop3_logout_send(pop3_session);
+ } else
+ return -1;
+ break;
+ case POP3_GETSIZE_LIST_RECV:
+ val = pop3_getsize_list_recv(pop3_session, data, len);
+ if (val == PS_SUCCESS) {
+ if (pop3_lookup_next(pop3_session) == POP3_ERROR)
+ return -1;
+ } else
+ return -1;
+ break;
+ case POP3_RETR_RECV:
+ if (pop3_retr_recv(pop3_session, data, len) < 0)
+ return -1;
+
+ if (pop3_session->msg[pop3_session->cur_msg].recv_time
+ == RECV_TIME_DELETE ||
+ (pop3_session->ac_prefs->rmmail &&
+ pop3_session->ac_prefs->msg_leave_time == 0 &&
+ pop3_session->msg[pop3_session->cur_msg].recv_time
+ != RECV_TIME_KEEP))
+ pop3_delete_send(pop3_session);
+ else if (pop3_session->cur_msg == pop3_session->count)
+ pop3_logout_send(pop3_session);
+ else {
+ pop3_session->cur_msg++;
+ if (pop3_lookup_next(pop3_session) == POP3_ERROR)
+ return -1;
+ }
+ break;
+ case POP3_ERROR:
+ default:
+ return -1;
+ }
+
+ return 0;
+}