#include "libspamc.h"
#include "spamassassin.h"
+#include "inc.h"
#include "log.h"
#include "prefs_common.h"
+#include "alertpanel.h"
#ifdef HAVE_SYSEXITS_H
#include <sysexits.h>
static SpamAssassinConfig config;
static PrefParam param[] = {
+ {"enable", "FALSE", &config.enable, P_BOOL,
+ NULL, NULL, NULL},
{"transport", "0", &config.transport, P_INT,
NULL, NULL, NULL},
{"hostname", "localhost", &config.hostname, P_STRING,
return FALSE;
}
-static gboolean msg_is_spam(FILE *fp)
+typedef enum {
+ MSG_IS_HAM = 0,
+ MSG_IS_SPAM = 1,
+ MSG_FILTERING_ERROR = 2
+} MsgStatus;
+
+static MsgStatus msg_is_spam(FILE *fp)
{
struct transport trans;
struct message m;
gboolean is_spam = FALSE;
+ if (!config.enable)
+ return MSG_IS_HAM;
+
transport_init(&trans);
switch (config.transport) {
case SPAMASSASSIN_TRANSPORT_LOCALHOST:
trans.socketpath = config.socket;
break;
default:
- return FALSE;
+ return MSG_IS_HAM;
}
if (transport_setup(&trans, flags) != EX_OK) {
- log_error("Spamassassin plugin couldn't connect to spamd.\n");
+ log_error(_("SpamAssassin plugin couldn't connect to spamd.\n"));
debug_print("failed to setup transport\n");
- return FALSE;
+ return MSG_FILTERING_ERROR;
}
m.type = MESSAGE_NONE;
if (message_read(fileno(fp), flags, &m) != EX_OK) {
debug_print("failed to read message\n");
message_cleanup(&m);
- return FALSE;
+ return MSG_FILTERING_ERROR;
}
if (message_filter(&trans, config.username, flags, &m) != EX_OK) {
+ log_error(_("SpamAssassin plugin filtering failed.\n"));
debug_print("filtering the message failed\n");
message_cleanup(&m);
- return FALSE;
+ return MSG_FILTERING_ERROR;
}
if (m.is_spam == EX_ISSPAM)
message_cleanup(&m);
- return is_spam;
+ return is_spam ? MSG_IS_SPAM:MSG_IS_HAM;
}
static gboolean mail_filtering_hook(gpointer source, gpointer data)
{
MailFilteringData *mail_filtering_data = (MailFilteringData *) source;
MsgInfo *msginfo = mail_filtering_data->msginfo;
- gboolean is_spam = FALSE;
+ gboolean is_spam = FALSE, error = FALSE;
+ static gboolean warned_error = FALSE;
FILE *fp = NULL;
int pid = 0;
int status;
- if (config.transport == SPAMASSASSIN_DISABLED) {
- log_error("Spamassassin plugin is disabled by its preferences.\n");
+ /* SPAMASSASSIN_DISABLED : keep test for compatibility purpose */
+ if (!config.enable || config.transport == SPAMASSASSIN_DISABLED) {
+ log_error(_("SpamAssassin plugin is disabled by its preferences.\n"));
return FALSE;
}
debug_print("Filtering message %d\n", msginfo->msgnum);
pid = fork();
if (pid == 0) {
- _exit(msg_is_spam(fp) ? 1 : 0);
+ _exit(msg_is_spam(fp));
} else {
gint running = 0;
ret = waitpid(pid, &status, WNOHANG);
if (ret == pid) {
if (WIFEXITED(status)) {
+ MsgStatus result = MSG_IS_HAM;
running &= ~CHILD_RUNNING;
- is_spam = WEXITSTATUS(status) == 1 ? TRUE : FALSE;
+ result = WEXITSTATUS(status);
+ is_spam = (result == MSG_IS_SPAM) ? TRUE : FALSE;
+ error = (result == MSG_FILTERING_ERROR);
}
} if (ret < 0) {
running &= ~CHILD_RUNNING;
debug_print("message is ham\n");
procmsg_msginfo_unset_flags(msginfo, MSG_SPAM, 0);
}
+
+ if (error) {
+ gchar *msg = _("The SpamAssassin plugin couldn't filter "
+ "a message. The probable cause of the error "
+ "is an unreachable spamd daemon. Please make "
+ "sure spamd is running and accessible.");
+ if (!prefs_common.no_recv_err_panel) {
+ if (!warned_error) {
+ alertpanel_error(msg);
+ }
+ warned_error = TRUE;
+ } else {
+ gchar *tmp = g_strdup_printf("%s\n", msg);
+ log_error(tmp);
+ g_free(tmp);
+ }
+ }
+
return FALSE;
}
return &config;
}
-void spamassassin_learn(MsgInfo *msginfo, GSList *msglist, gboolean spam)
+gchar* spamassassin_create_tmp_spamc_wrapper(gboolean spam)
+{
+ gchar *contents;
+ gchar *fname = get_tmp_file();
+
+ if (fname != NULL) {
+ contents = g_strdup_printf(
+ "spamc -d %s -p %u -u %s -t %u -s %u -L %s<\"$*\";exit $?",
+ config.hostname, config.port,
+ config.username, config.timeout,
+ config.max_size * 1024, spam?"spam":"ham");
+ if (str_write_to_file(contents, fname) < 0) {
+ g_free(fname);
+ fname = NULL;
+ }
+ g_free(contents);
+ }
+ /* returned pointer must be free'ed by caller */
+ return fname;
+}
+
+int spamassassin_learn(MsgInfo *msginfo, GSList *msglist, gboolean spam)
{
gchar *cmd = NULL;
gchar *file = NULL;
- gboolean async = FALSE;
+ const gchar *shell = g_getenv("SHELL");
+ gchar *spamc_wrapper = NULL;
- if (msginfo == NULL && msglist == NULL)
- return;
+ if (msginfo == NULL && msglist == NULL) {
+ return -1;
+ }
+
+ if (config.transport == SPAMASSASSIN_TRANSPORT_TCP
+ && prefs_common.work_offline
+ && !inc_offline_should_override(
+ _("Sylpheed-Claws needs network access in order "
+ "to feed this mail(s) to the remote learner."))) {
+ return -1;
+ }
if (msginfo) {
file = procmsg_get_message_file(msginfo);
- if (file == NULL)
- return;
+ if (file == NULL) {
+ return -1;
+ }
if (config.transport == SPAMASSASSIN_TRANSPORT_TCP) {
+ spamc_wrapper = spamassassin_create_tmp_spamc_wrapper(spam);
+ if (spamc_wrapper != NULL) {
+ cmd = g_strconcat(shell?shell:"sh", " ",
+ spamc_wrapper, " ", file, NULL);
+ }
+ } else {
cmd = g_strdup_printf("sa-learn -u %s %s %s %s",
config.username,
prefs_common.work_offline?"-L":"",
spam?"--spam":"--ham", file);
- } else {
- cmd = g_strdup_printf("spamc -d %s -p %u -u %s -t %u -s %u -L %s < %s",
- config.hostname, config.port,
- config.username, config.timeout,
- config.max_size * 1024, spam?"spam":"ham", file);
}
}
if (msglist) {
MsgInfo *info;
if (config.transport == SPAMASSASSIN_TRANSPORT_TCP) {
- cmd = g_strdup_printf("spamc -d %s -p %u -u %s -t %u -s %u -L %s",
- config.hostname, config.port,
- config.username, config.timeout,
- config.max_size * 1024, spam?"spam":"ham");
-
/* execute n-times the spamc command */
for (; cur; cur = cur->next) {
info = (MsgInfo *)cur->data;
gchar *tmpcmd = NULL;
gchar *tmpfile = get_tmp_file();
- if (tmpfile &&
- copy_file(procmsg_get_message_file(info), tmpfile, TRUE) == 0) {
- tmpcmd = g_strconcat(cmd, " < ", tmpfile, NULL);
+ if (spamc_wrapper == NULL) {
+ spamc_wrapper = spamassassin_create_tmp_spamc_wrapper(spam);
+ }
+
+ if (spamc_wrapper && tmpfile &&
+ copy_file(procmsg_get_message_file(info), tmpfile, TRUE) == 0) {
+ tmpcmd = g_strconcat(shell?shell:"sh", " ", spamc_wrapper, " ",
+ tmpfile, NULL);
debug_print("%s\n", tmpcmd);
- execute_command_line(tmpcmd, TRUE);
+ execute_command_line(tmpcmd, FALSE);
g_free(tmpcmd);
}
- if (tmpfile)
- g_free(tmpfile);
+ g_free(tmpfile);
}
- g_free(cmd);
- return;
+ g_free(spamc_wrapper);
+ return 0;
} else {
cmd = g_strdup_printf("sa-learn -u %s %s %s",
config.username,
g_free(cmd);
cmd = tmpcmd;
}
- if (tmpfile)
- g_free(tmpfile);
+ g_free(tmpfile);
}
- async = TRUE;
}
}
- if (cmd == NULL)
- return;
+ if (cmd == NULL) {
+ return -1;
+ }
debug_print("%s\n", cmd);
- /* only run async if we have a list, or we could end up
- * forking lots of perl processes and bury the machine */
-
- execute_command_line(cmd, async);
+ /* only run sync calls to sa-learn/spamc to prevent system lockdown */
+ execute_command_line(cmd, FALSE);
g_free(cmd);
+ g_free(spamc_wrapper);
+
+ return 0;
}
void spamassassin_save_config(void)
}
spamassassin_gtk_init();
- debug_print("Spamassassin plugin loaded\n");
+ debug_print("SpamAssassin plugin loaded\n");
if (config.process_emails) {
spamassassin_register_hook();
}
- if (config.transport == SPAMASSASSIN_DISABLED) {
- log_error("Spamassassin plugin is loaded but disabled by its preferences.\n");
+ if (!config.enable || config.transport == SPAMASSASSIN_DISABLED) {
+ log_error(_("SpamAssassin plugin is loaded but disabled by its preferences.\n"));
}
-
- if (config.transport != SPAMASSASSIN_DISABLED) {
+ else {
if (config.transport == SPAMASSASSIN_TRANSPORT_TCP)
debug_print("Enabling learner with a remote spamassassin server requires spamc/spamd 3.1.x\n");
procmsg_register_spam_learner(spamassassin_learn);
spamassassin_gtk_done();
procmsg_unregister_spam_learner(spamassassin_learn);
procmsg_spam_set_folder(NULL);
- debug_print("Spamassassin plugin unloaded\n");
+ debug_print("SpamAssassin plugin unloaded\n");
}
const gchar *plugin_name(void)
const gchar *plugin_desc(void)
{
- return _("This plugin checks all messages that are received from an "
+ return _("This plugin can check all messages that are received from an "
"IMAP, LOCAL or POP account for spam using a SpamAssassin "
"server. You will need a SpamAssassin Server (spamd) running "
"somewhere.\n"
"\n"
+ "It can also be used for marking messages as Ham or Spam.\n"
+ "\n"
"When a message is identified as spam it can be deleted or "
- "saved into a special folder.\n"
- "\n");
+ "saved in a specially designated folder.\n"
+ "\n"
+ "Options can be found in /Configuration/Preferences/Plugins/SpamAssassin");
}
const gchar *plugin_type(void)
return VERSION;
}
+struct PluginFeature *plugin_provides(void)
+{
+ static struct PluginFeature features[] =
+ { {PLUGIN_FILTERING, N_("Spam detection")},
+ {PLUGIN_FILTERING, N_("Spam learning")},
+ {PLUGIN_NOTHING, NULL}};
+ return features;
+}
+
void spamassassin_register_hook(void)
{
hook_id = hooks_register_hook(MAIL_FILTERING_HOOKLIST, mail_filtering_hook, NULL);
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