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- /*-
- * Copyright 2016 Vsevolod Stakhov
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include "config.h"
- #include "logger.h"
- #include "rspamd.h"
- #include "map.h"
- #include "map_helpers.h"
- #include "ottery.h"
- #include "unix-std.h"
-
- #ifdef HAVE_SYSLOG_H
- #include <syslog.h>
- #endif
-
- /* How much message should be repeated before it is count to be repeated one */
- #define REPEATS_MIN 3
- #define REPEATS_MAX 300
- #define LOG_ID 6
- #define LOGBUF_LEN 8192
-
- struct rspamd_log_module {
- gchar *mname;
- guint id;
- };
-
- struct rspamd_log_modules {
- guchar *bitset;
- guint bitset_len; /* Number of BITS used in bitset */
- guint bitset_allocated; /* Size of bitset allocated in BYTES */
- GHashTable *modules;
- };
-
- struct rspamd_logger_error_elt {
- gint completed;
- GQuark ptype;
- pid_t pid;
- gdouble ts;
- gchar id[LOG_ID + 1];
- gchar module[9];
- gchar message[];
- };
-
- struct rspamd_logger_error_log {
- struct rspamd_logger_error_elt *elts;
- rspamd_mempool_t *pool;
- guint32 max_elts;
- guint32 elt_len;
- /* Avoid false cache sharing */
- guchar __padding[64 - sizeof(gpointer) * 2 - sizeof(guint64)];
- guint cur_row;
- };
-
- /**
- * Static structure that store logging parameters
- * It is NOT shared between processes and is created by main process
- */
- struct rspamd_logger_s {
- rspamd_log_func_t log_func;
- enum rspamd_log_type log_type;
- gint log_facility;
- gint log_level;
- gchar *log_file;
- gboolean log_buffered;
- gboolean log_silent_workers;
- guint32 log_buf_size;
-
- struct rspamd_logger_error_log *errlog;
- struct rspamd_cryptobox_pubkey *pk;
- struct rspamd_cryptobox_keypair *keypair;
- struct {
- guint32 size;
- guint32 used;
- u_char *buf;
- } io_buf;
- gint fd;
- guint flags;
- gboolean is_buffered;
- gboolean enabled;
- gboolean is_debug;
- gboolean throttling;
- gboolean no_lock;
- gboolean opened;
- time_t throttling_time;
- enum rspamd_log_type type;
- pid_t pid;
- guint32 repeats;
- GQuark process_type;
- struct rspamd_radix_map_helper *debug_ip;
- guint64 last_line_cksum;
- gchar *saved_message;
- gchar *saved_function;
- gchar *saved_module;
- gchar *saved_id;
- rspamd_mempool_mutex_t *mtx;
- guint saved_loglevel;
- guint64 log_cnt[4];
- };
-
- static const gchar lf_chr = '\n';
-
- static rspamd_logger_t *default_logger = NULL;
- static struct rspamd_log_modules *log_modules = NULL;
-
- static void syslog_log_function (const gchar *module,
- const gchar *id, const gchar *function,
- gint log_level, const gchar *message,
- gpointer arg);
-
- static void file_log_function (const gchar *module,
- const gchar *id, const gchar *function,
- gint log_level, const gchar *message,
- gpointer arg);
-
- guint rspamd_task_log_id = (guint)-1;
- RSPAMD_CONSTRUCTOR(rspamd_task_log_init)
- {
- rspamd_task_log_id = rspamd_logger_add_debug_module("task");
- }
-
- /**
- * Calculate checksum for log line (used for repeating logic)
- */
- static inline guint64
- rspamd_log_calculate_cksum (const gchar *message, size_t mlen)
- {
- return rspamd_cryptobox_fast_hash (message, mlen, rspamd_hash_seed ());
- }
-
- /*
- * Write a line to log file (unbuffered)
- */
- static void
- direct_write_log_line (rspamd_logger_t *rspamd_log,
- void *data,
- gsize count,
- gboolean is_iov,
- gint level_flags)
- {
- gchar errmsg[128];
- struct iovec *iov;
- const gchar *line;
- glong r;
- gint fd;
-
- if (rspamd_log->type == RSPAMD_LOG_CONSOLE) {
-
- if (rspamd_log->flags & RSPAMD_LOG_FLAG_RSPAMADM) {
- fd = STDOUT_FILENO;
-
- if (level_flags & G_LOG_LEVEL_CRITICAL) {
- fd = STDERR_FILENO;
- }
- }
- else {
- fd = STDERR_FILENO;
- }
- }
- else {
- fd = rspamd_log->fd;
- }
-
- if (!rspamd_log->no_lock) {
- #ifndef DISABLE_PTHREAD_MUTEX
- if (rspamd_log->mtx) {
- rspamd_mempool_lock_mutex (rspamd_log->mtx);
- }
- else {
- rspamd_file_lock (fd, FALSE);
- }
- #else
- rspamd_file_lock (fd, FALSE);
- #endif
- }
-
- if (is_iov) {
- iov = (struct iovec *) data;
- r = writev (fd, iov, count);
- }
- else {
- line = (const gchar *) data;
- r = write (fd, line, count);
- }
-
- if (!rspamd_log->no_lock) {
- #ifndef DISABLE_PTHREAD_MUTEX
- if (rspamd_log->mtx) {
- rspamd_mempool_unlock_mutex (rspamd_log->mtx);
- }
- else {
- rspamd_file_unlock (fd, FALSE);
- }
- #else
- rspamd_file_unlock (fd, FALSE);
- #endif
- }
-
- if (r == -1) {
- /* We cannot write message to file, so we need to detect error and make decision */
- if (errno == EINTR) {
- /* Try again */
- direct_write_log_line (rspamd_log, data, count, is_iov, level_flags);
- return;
- }
-
- r = rspamd_snprintf (errmsg,
- sizeof (errmsg),
- "direct_write_log_line: cannot write log line: %s",
- strerror (errno));
- if (errno == EFAULT || errno == EINVAL || errno == EFBIG ||
- errno == ENOSPC) {
- /* Rare case */
- rspamd_log->throttling = TRUE;
- rspamd_log->throttling_time = time (NULL);
- }
- else if (errno == EPIPE || errno == EBADF) {
- /* We write to some pipe and it disappears, disable logging or we has opened bad file descriptor */
- rspamd_log->enabled = FALSE;
- }
- }
- else if (rspamd_log->throttling) {
- rspamd_log->throttling = FALSE;
- }
- }
-
- static void
- rspamd_escape_log_string (gchar *str)
- {
- guchar *p = (guchar *) str;
-
- while (*p) {
- if ((*p & 0x80) || !g_ascii_isprint (*p)) {
- *p = '?';
- }
- else if (*p == '\n' || *p == '\r') {
- *p = ' ';
- }
- p++;
- }
- }
-
- /* Logging utility functions */
- gint
- rspamd_log_open_priv (rspamd_logger_t *rspamd_log, uid_t uid, gid_t gid)
- {
- if (!rspamd_log->opened) {
- switch (rspamd_log->log_type) {
- case RSPAMD_LOG_CONSOLE:
- /* Do nothing with console */
- rspamd_log->fd = -1;
- break;
- case RSPAMD_LOG_SYSLOG:
- #ifdef HAVE_SYSLOG_H
- openlog ("rspamd", LOG_NDELAY | LOG_PID,
- rspamd_log->log_facility);
- #endif
- break;
- case RSPAMD_LOG_FILE:
- rspamd_log->fd = open (rspamd_log->log_file,
- O_CREAT | O_WRONLY | O_APPEND,
- S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH);
- if (rspamd_log->fd == -1) {
- fprintf (stderr,
- "open_log: cannot open desired log file: %s, %s\n",
- rspamd_log->log_file, strerror (errno));
- return -1;
- }
- if (fchown (rspamd_log->fd, uid, gid) == -1) {
- fprintf (stderr,
- "open_log: cannot chown desired log file: %s, %s\n",
- rspamd_log->log_file, strerror (errno));
- close (rspamd_log->fd);
- return -1;
- }
- break;
- default:
- return -1;
- }
-
- rspamd_log->opened = TRUE;
- rspamd_log->enabled = TRUE;
- }
-
- return 0;
- }
-
- void
- rspamd_log_close_priv (rspamd_logger_t *rspamd_log, gboolean termination, uid_t uid, gid_t gid)
- {
- gchar tmpbuf[256];
- rspamd_log_flush (rspamd_log);
-
- if (rspamd_log->opened) {
- switch (rspamd_log->type) {
- case RSPAMD_LOG_CONSOLE:
- /* Do nothing special */
- break;
- case RSPAMD_LOG_SYSLOG:
- #ifdef HAVE_SYSLOG_H
- closelog ();
- #endif
- break;
- case RSPAMD_LOG_FILE:
- if (rspamd_log->repeats > REPEATS_MIN) {
- rspamd_snprintf (tmpbuf,
- sizeof (tmpbuf),
- "Last message repeated %ud times",
- rspamd_log->repeats);
- rspamd_log->repeats = 0;
- if (rspamd_log->saved_message) {
- file_log_function (rspamd_log->saved_module,
- rspamd_log->saved_id,
- rspamd_log->saved_function,
- rspamd_log->saved_loglevel | RSPAMD_LOG_FORCED,
- rspamd_log->saved_message,
- rspamd_log);
-
- g_free (rspamd_log->saved_message);
- g_free (rspamd_log->saved_function);
- g_free (rspamd_log->saved_module);
- g_free (rspamd_log->saved_id);
- rspamd_log->saved_message = NULL;
- rspamd_log->saved_function = NULL;
- rspamd_log->saved_module = NULL;
- rspamd_log->saved_id = NULL;
- }
- /* It is safe to use temporary buffer here as it is not static */
- file_log_function (NULL, NULL,
- G_STRFUNC,
- rspamd_log->saved_loglevel | RSPAMD_LOG_FORCED,
- tmpbuf,
- rspamd_log);
- }
-
- if (rspamd_log->fd != -1) {
- if (fsync (rspamd_log->fd) == -1) {
- msg_err ("error syncing log file: %s", strerror (errno));
- }
- close (rspamd_log->fd);
- }
- break;
- }
-
- rspamd_log->enabled = FALSE;
- rspamd_log->opened = FALSE;
- }
-
- if (termination && rspamd_log->log_file) {
- g_free (rspamd_log->log_file);
- rspamd_log->log_file = NULL;
- }
- }
-
- gint
- rspamd_log_reopen_priv (rspamd_logger_t *rspamd_log, uid_t uid, gid_t gid)
- {
- rspamd_log_close_priv (rspamd_log, FALSE, uid, gid);
-
- if (rspamd_log_open_priv (rspamd_log, uid, gid) == 0) {
- msg_info ("log file reopened");
- return 0;
- }
-
- return -1;
- }
-
- /**
- * Open log file or initialize other structures
- */
- gint
- rspamd_log_open (rspamd_logger_t *logger)
- {
- return rspamd_log_open_priv (logger, -1, -1);
- }
-
- /**
- * Close log file or destroy other structures
- */
- void
- rspamd_log_close (rspamd_logger_t *logger, gboolean termination)
- {
- rspamd_log_close_priv (logger, termination, -1, -1);
- }
-
- /**
- * Close and open log again
- */
- gint
- rspamd_log_reopen (rspamd_logger_t *logger)
- {
- return rspamd_log_reopen_priv (logger, -1, -1);
- }
-
- /*
- * Setup logger
- */
- void
- rspamd_set_logger (struct rspamd_config *cfg,
- GQuark ptype,
- rspamd_logger_t **plogger,
- rspamd_mempool_t *pool)
- {
- rspamd_logger_t *logger;
-
- if (plogger == NULL || *plogger == NULL) {
- logger = g_malloc0 (sizeof (rspamd_logger_t));
-
- if (cfg->log_error_elts > 0 && pool) {
- logger->errlog = rspamd_mempool_alloc0_shared (pool,
- sizeof (*logger->errlog));
- logger->errlog->pool = pool;
- logger->errlog->max_elts = cfg->log_error_elts;
- logger->errlog->elt_len = cfg->log_error_elt_maxlen;
- logger->errlog->elts = rspamd_mempool_alloc0_shared (pool,
- sizeof (struct rspamd_logger_error_elt) * cfg->log_error_elts +
- cfg->log_error_elt_maxlen * cfg->log_error_elts);
- }
-
- if (pool) {
- logger->mtx = rspamd_mempool_get_mutex (pool);
- }
-
- if (plogger) {
- *plogger = logger;
- }
- }
- else {
- logger = *plogger;
- }
-
- logger->type = cfg->log_type;
- logger->pid = getpid ();
- logger->process_type = ptype;
-
- switch (cfg->log_type) {
- case RSPAMD_LOG_CONSOLE:
- logger->log_func = file_log_function;
- logger->fd = -1;
- break;
- case RSPAMD_LOG_SYSLOG:
- logger->log_func = syslog_log_function;
- break;
- case RSPAMD_LOG_FILE:
- logger->log_func = file_log_function;
- break;
- }
-
- logger->log_type = cfg->log_type;
- logger->log_facility = cfg->log_facility;
- logger->log_level = cfg->log_level;
- logger->log_buffered = cfg->log_buffered;
- logger->log_silent_workers = cfg->log_silent_workers;
- logger->log_buf_size = cfg->log_buf_size;
-
- if (logger->log_file) {
- g_free (logger->log_file);
- logger->log_file = NULL;
- }
- if (cfg->log_file) {
- logger->log_file = g_strdup (cfg->log_file);
- }
-
- logger->flags = cfg->log_flags;
-
- /* Set up buffer */
- if (cfg->log_buffered) {
- if (cfg->log_buf_size != 0) {
- logger->io_buf.size = cfg->log_buf_size;
- }
- else {
- logger->io_buf.size = LOGBUF_LEN;
- }
- logger->is_buffered = TRUE;
- logger->io_buf.buf = g_malloc (logger->io_buf.size);
- }
- /* Set up conditional logging */
- if (cfg->debug_ip_map != NULL) {
- /* Try to add it as map first of all */
- if (logger->debug_ip) {
- rspamd_map_helper_destroy_radix (logger->debug_ip);
- }
-
- logger->debug_ip = NULL;
- rspamd_config_radix_from_ucl (cfg,
- cfg->debug_ip_map,
- "IP addresses for which debug logs are enabled",
- &logger->debug_ip, NULL);
- }
- else if (logger->debug_ip) {
- rspamd_map_helper_destroy_radix (logger->debug_ip);
- logger->debug_ip = NULL;
- }
-
- if (logger->pk) {
- rspamd_pubkey_unref (logger->pk);
- }
- logger->pk = NULL;
-
- if (logger->keypair) {
- rspamd_keypair_unref (logger->keypair);
- }
- logger->keypair = NULL;
-
- if (cfg->log_encryption_key) {
- logger->pk = rspamd_pubkey_ref (cfg->log_encryption_key);
- logger->keypair = rspamd_keypair_new (RSPAMD_KEYPAIR_KEX,
- RSPAMD_CRYPTOBOX_MODE_25519);
- rspamd_pubkey_calculate_nm (logger->pk, logger->keypair);
- }
-
- default_logger = logger;
- }
-
- /**
- * Used after fork() for updating structure params
- */
- void
- rspamd_log_update_pid (GQuark ptype, rspamd_logger_t *rspamd_log)
- {
- rspamd_log->pid = getpid ();
- rspamd_log->process_type = ptype;
-
- /* We also need to clear all messages pending */
- if (rspamd_log->repeats > 0) {
- rspamd_log->repeats = 0;
- if (rspamd_log->saved_message) {
- g_free (rspamd_log->saved_message);
- g_free (rspamd_log->saved_function);
- g_free (rspamd_log->saved_module);
- g_free (rspamd_log->saved_id);
- rspamd_log->saved_message = NULL;
- rspamd_log->saved_function = NULL;
- rspamd_log->saved_module = NULL;
- rspamd_log->saved_id = NULL;
- }
- }
- }
-
- /**
- * Flush logging buffer
- */
- void
- rspamd_log_flush (rspamd_logger_t *rspamd_log)
- {
- if (rspamd_log->is_buffered &&
- (rspamd_log->type == RSPAMD_LOG_CONSOLE ||
- rspamd_log->type == RSPAMD_LOG_FILE)) {
- direct_write_log_line (rspamd_log,
- rspamd_log->io_buf.buf,
- rspamd_log->io_buf.used,
- FALSE, rspamd_log->log_level);
- rspamd_log->io_buf.used = 0;
- }
- }
-
- static inline gboolean
- rspamd_logger_need_log (rspamd_logger_t *rspamd_log, GLogLevelFlags log_level,
- guint module_id)
- {
- g_assert (rspamd_log != NULL);
-
- if ((log_level & RSPAMD_LOG_FORCED) ||
- (log_level & (RSPAMD_LOG_LEVEL_MASK & G_LOG_LEVEL_MASK)) <= rspamd_log->log_level) {
- return TRUE;
- }
-
- if (module_id != (guint)-1 && isset (log_modules->bitset, module_id)) {
- return TRUE;
- }
-
- return FALSE;
- }
-
- static gchar *
- rspamd_log_encrypt_message (const gchar *begin, const gchar *end,
- rspamd_logger_t *rspamd_log)
- {
- guchar *out;
- gchar *b64;
- guchar *p, *nonce, *mac;
- const guchar *comp;
- guint len, inlen;
-
- g_assert (end > begin);
- /* base64 (pubkey | nonce | message) */
- inlen = rspamd_cryptobox_nonce_bytes (RSPAMD_CRYPTOBOX_MODE_25519) +
- rspamd_cryptobox_pk_bytes (RSPAMD_CRYPTOBOX_MODE_25519) +
- rspamd_cryptobox_mac_bytes (RSPAMD_CRYPTOBOX_MODE_25519) +
- (end - begin);
- out = g_malloc (inlen);
-
- p = out;
- comp = rspamd_pubkey_get_pk (rspamd_log->pk, &len);
- memcpy (p, comp, len);
- p += len;
- ottery_rand_bytes (p, rspamd_cryptobox_nonce_bytes (RSPAMD_CRYPTOBOX_MODE_25519));
- nonce = p;
- p += rspamd_cryptobox_nonce_bytes (RSPAMD_CRYPTOBOX_MODE_25519);
- mac = p;
- p += rspamd_cryptobox_mac_bytes (RSPAMD_CRYPTOBOX_MODE_25519);
- memcpy (p, begin, end - begin);
- comp = rspamd_pubkey_get_nm (rspamd_log->pk, rspamd_log->keypair);
- g_assert (comp != NULL);
- rspamd_cryptobox_encrypt_nm_inplace (p, end - begin, nonce, comp, mac,
- RSPAMD_CRYPTOBOX_MODE_25519);
- b64 = rspamd_encode_base64 (out, inlen, 0, NULL);
- g_free (out);
-
- return b64;
- }
-
- static void
- rspamd_log_write_ringbuffer (rspamd_logger_t *rspamd_log,
- const gchar *module, const gchar *id,
- const gchar *data, glong len)
- {
- guint32 row_num;
- struct rspamd_logger_error_log *elog;
- struct rspamd_logger_error_elt *elt;
-
- if (!rspamd_log->errlog) {
- return;
- }
-
- elog = rspamd_log->errlog;
-
- g_atomic_int_compare_and_exchange (&elog->cur_row, elog->max_elts, 0);
- #if ((GLIB_MAJOR_VERSION == 2) && (GLIB_MINOR_VERSION > 30))
- row_num = g_atomic_int_add (&elog->cur_row, 1);
- #else
- row_num = g_atomic_int_exchange_and_add (&elog->cur_row, 1);
- #endif
-
- if (row_num < elog->max_elts) {
- elt = (struct rspamd_logger_error_elt *)(((guchar *)elog->elts) +
- (sizeof (*elt) + elog->elt_len) * row_num);
- g_atomic_int_set (&elt->completed, 0);
- }
- else {
- /* Race condition */
- elog->cur_row = 0;
- return;
- }
-
- elt->pid = rspamd_log->pid;
- elt->ptype = rspamd_log->process_type;
- elt->ts = rspamd_get_calendar_ticks ();
-
- if (id) {
- rspamd_strlcpy (elt->id, id, sizeof (elt->id));
- }
- else {
- rspamd_strlcpy (elt->id, "", sizeof (elt->id));
- }
-
- if (module) {
- rspamd_strlcpy (elt->module, module, sizeof (elt->module));
- }
- else {
- rspamd_strlcpy (elt->module, "", sizeof (elt->module));
- }
-
- rspamd_strlcpy (elt->message, data, MIN (len + 1, elog->elt_len));
- g_atomic_int_set (&elt->completed, 1);
- }
-
- void
- rspamd_common_logv (rspamd_logger_t *rspamd_log, gint level_flags,
- const gchar *module, const gchar *id, const gchar *function,
- const gchar *fmt, va_list args)
- {
- gchar logbuf[RSPAMD_LOGBUF_SIZE], *end;
- gint level = level_flags & (RSPAMD_LOG_LEVEL_MASK & G_LOG_LEVEL_MASK), mod_id;
-
- if (G_UNLIKELY (rspamd_log == NULL)) {
- rspamd_log = default_logger;
- }
-
- if (G_UNLIKELY (rspamd_log == NULL)) {
- /* Just fprintf message to stderr */
- if (level >= G_LOG_LEVEL_INFO) {
- rspamd_vsnprintf (logbuf, sizeof (logbuf), fmt, args);
- fprintf (stderr, "%s\n", logbuf);
- }
- }
- else {
- if (level == G_LOG_LEVEL_DEBUG) {
- mod_id = rspamd_logger_add_debug_module (module);
- }
- else {
- mod_id = -1;
- }
-
- if (rspamd_logger_need_log (rspamd_log, level_flags, mod_id)) {
- end = rspamd_vsnprintf (logbuf, sizeof (logbuf), fmt, args);
-
- if ((level_flags & RSPAMD_LOG_ENCRYPTED) && rspamd_log->pk) {
- gchar *encrypted;
-
- encrypted = rspamd_log_encrypt_message (logbuf, end, rspamd_log);
- rspamd_log->log_func (module, id,
- function,
- level_flags,
- encrypted,
- rspamd_log);
- g_free (encrypted);
- }
- else {
- rspamd_log->log_func (module, id,
- function,
- level_flags,
- logbuf,
- rspamd_log);
- }
-
- switch (level) {
- case G_LOG_LEVEL_CRITICAL:
- rspamd_log->log_cnt[0] ++;
- rspamd_log_write_ringbuffer (rspamd_log, module, id, logbuf,
- end - logbuf);
- break;
- case G_LOG_LEVEL_WARNING:
- rspamd_log->log_cnt[1]++;
- break;
- case G_LOG_LEVEL_INFO:
- rspamd_log->log_cnt[2]++;
- break;
- case G_LOG_LEVEL_DEBUG:
- rspamd_log->log_cnt[3]++;
- break;
- default:
- break;
- }
- }
- }
- }
-
- /**
- * This log functions select real logger and write message if level is less or equal to configured log level
- */
- void
- rspamd_common_log_function (rspamd_logger_t *rspamd_log,
- gint level_flags,
- const gchar *module, const gchar *id,
- const gchar *function,
- const gchar *fmt,
- ...)
- {
- va_list vp;
-
- va_start (vp, fmt);
- rspamd_common_logv (rspamd_log, level_flags, module, id, function, fmt, vp);
- va_end (vp);
- }
-
- void
- rspamd_default_logv (gint level_flags, const gchar *module, const gchar *id,
- const gchar *function,
- const gchar *fmt, va_list args)
- {
- rspamd_common_logv (NULL, level_flags, module, id, function, fmt, args);
- }
-
- void
- rspamd_default_log_function (gint level_flags,
- const gchar *module, const gchar *id,
- const gchar *function, const gchar *fmt, ...)
- {
-
- va_list vp;
-
- va_start (vp, fmt);
- rspamd_default_logv (level_flags, module, id, function, fmt, vp);
- va_end (vp);
- }
-
-
- /**
- * Fill buffer with message (limits must be checked BEFORE this call)
- */
- static void
- fill_buffer (rspamd_logger_t *rspamd_log, const struct iovec *iov, gint iovcnt)
- {
- gint i;
-
- for (i = 0; i < iovcnt; i++) {
- memcpy (rspamd_log->io_buf.buf + rspamd_log->io_buf.used,
- iov[i].iov_base,
- iov[i].iov_len);
- rspamd_log->io_buf.used += iov[i].iov_len;
- }
-
- }
-
- /*
- * Write message to buffer or to file (using direct_write_log_line function)
- */
- static void
- file_log_helper (rspamd_logger_t *rspamd_log,
- const struct iovec *iov,
- guint iovcnt,
- gint level_flags)
- {
- size_t len = 0;
- guint i;
-
- if (!rspamd_log->is_buffered) {
- /* Write string directly */
- direct_write_log_line (rspamd_log, (void *) iov, iovcnt, TRUE, level_flags);
- }
- else {
- /* Calculate total length */
- for (i = 0; i < iovcnt; i++) {
- len += iov[i].iov_len;
- }
- /* Fill buffer */
- if (rspamd_log->io_buf.size < len) {
- /* Buffer is too small to hold this string, so write it directly */
- rspamd_log_flush (rspamd_log);
- direct_write_log_line (rspamd_log, (void *) iov, iovcnt, TRUE, level_flags);
- }
- else if (rspamd_log->io_buf.used + len >= rspamd_log->io_buf.size) {
- /* Buffer is full, try to write it directly */
- rspamd_log_flush (rspamd_log);
- fill_buffer (rspamd_log, iov, iovcnt);
- }
- else {
- /* Copy incoming string to buffer */
- fill_buffer (rspamd_log, iov, iovcnt);
- }
- }
- }
-
- /**
- * Syslog interface for logging
- */
- static void
- syslog_log_function (const gchar *module, const gchar *id,
- const gchar *function,
- gint level_flags,
- const gchar *message,
- gpointer arg)
- {
- rspamd_logger_t *rspamd_log = arg;
- #ifdef HAVE_SYSLOG_H
- struct {
- GLogLevelFlags glib_level;
- gint syslog_level;
- } levels_match[] = {
- {G_LOG_LEVEL_DEBUG, LOG_DEBUG},
- {G_LOG_LEVEL_INFO, LOG_INFO},
- {G_LOG_LEVEL_WARNING, LOG_WARNING},
- {G_LOG_LEVEL_CRITICAL, LOG_ERR}
- };
- unsigned i;
- gint syslog_level;
-
- if (!(level_flags & RSPAMD_LOG_FORCED) && !rspamd_log->enabled) {
- return;
- }
- /* Detect level */
- syslog_level = LOG_DEBUG;
-
- for (i = 0; i < G_N_ELEMENTS (levels_match); i ++) {
- if (level_flags & levels_match[i].glib_level) {
- syslog_level = levels_match[i].syslog_level;
- break;
- }
- }
-
- syslog (syslog_level, "<%.*s>; %s; %s: %s",
- LOG_ID, id != NULL ? id : "",
- module != NULL ? module : "",
- function != NULL ? function : "",
- message);
- #endif
- }
-
-
- static inline void
- log_time (gdouble now, rspamd_logger_t *rspamd_log, gchar *timebuf,
- size_t len)
- {
- time_t sec = (time_t)now;
- gsize r;
- struct tm tms;
-
- rspamd_localtime (sec, &tms);
- r = strftime (timebuf, len, "%F %H:%M:%S", &tms);
-
- if (rspamd_log->flags & RSPAMD_LOG_FLAG_USEC) {
- gchar usec_buf[16];
-
- rspamd_snprintf (usec_buf, sizeof (usec_buf), "%.5f",
- now - (gdouble)sec);
- rspamd_snprintf (timebuf + r, len - r,
- "%s", usec_buf + 1);
- }
- }
-
- /**
- * Main file interface for logging
- */
- static void
- file_log_function (const gchar *module, const gchar *id,
- const gchar *function,
- gint level_flags,
- const gchar *message,
- gpointer arg)
- {
- static gchar timebuf[64], modulebuf[64];
- gchar tmpbuf[256];
- gchar *m;
- gdouble now;
-
- struct iovec iov[6];
- gulong r = 0, mr = 0;
- guint64 cksum;
- size_t mlen, mremain;
- const gchar *cptype = NULL;
- gboolean got_time = FALSE;
- rspamd_logger_t *rspamd_log = arg;
-
- if (!(level_flags & RSPAMD_LOG_FORCED) && !rspamd_log->enabled) {
- return;
- }
-
- /* Check throttling due to write errors */
- if (!(level_flags & RSPAMD_LOG_FORCED) && rspamd_log->throttling) {
- now = rspamd_get_calendar_ticks ();
- if (rspamd_log->throttling_time != now) {
- rspamd_log->throttling_time = now;
- got_time = TRUE;
- }
- else {
- /* Do not try to write to file too often while throttling */
- return;
- }
- }
-
- if (!(rspamd_log->flags & RSPAMD_LOG_FLAG_RSPAMADM)) {
- /* Check repeats */
- mlen = strlen (message);
- cksum = rspamd_log_calculate_cksum (message, mlen);
-
- if (cksum == rspamd_log->last_line_cksum) {
- rspamd_log->repeats++;
- if (rspamd_log->repeats > REPEATS_MIN && rspamd_log->repeats <
- REPEATS_MAX) {
- /* Do not log anything */
- if (rspamd_log->saved_message == NULL) {
- rspamd_log->saved_message = g_strdup (message);
- rspamd_log->saved_function = g_strdup (function);
-
- if (module) {
- rspamd_log->saved_module = g_strdup (module);
- }
-
- if (id) {
- rspamd_log->saved_id = g_strdup (id);
- }
-
- rspamd_log->saved_loglevel = level_flags;
- }
-
- return;
- }
- else if (rspamd_log->repeats > REPEATS_MAX) {
- rspamd_snprintf (tmpbuf,
- sizeof (tmpbuf),
- "Last message repeated %ud times",
- rspamd_log->repeats);
- rspamd_log->repeats = 0;
- /* It is safe to use temporary buffer here as it is not static */
- if (rspamd_log->saved_message) {
- file_log_function (rspamd_log->saved_module,
- rspamd_log->saved_id,
- rspamd_log->saved_function,
- rspamd_log->saved_loglevel,
- rspamd_log->saved_message,
- arg);
-
- g_free (rspamd_log->saved_message);
- g_free (rspamd_log->saved_function);
- g_free (rspamd_log->saved_module);
- g_free (rspamd_log->saved_id);
- rspamd_log->saved_message = NULL;
- rspamd_log->saved_function = NULL;
- rspamd_log->saved_module = NULL;
- rspamd_log->saved_id = NULL;
- }
-
- file_log_function ("logger", NULL,
- G_STRFUNC,
- rspamd_log->saved_loglevel,
- tmpbuf,
- arg);
- file_log_function (module, id,
- function,
- level_flags,
- message,
- arg);
- rspamd_log->repeats = REPEATS_MIN + 1;
- return;
- }
- }
- else {
- /* Reset counter if new message differs from saved message */
- rspamd_log->last_line_cksum = cksum;
- if (rspamd_log->repeats > REPEATS_MIN) {
- rspamd_snprintf (tmpbuf,
- sizeof (tmpbuf),
- "Last message repeated %ud times",
- rspamd_log->repeats);
- rspamd_log->repeats = 0;
-
- if (rspamd_log->saved_message) {
- file_log_function (rspamd_log->saved_module,
- rspamd_log->saved_id,
- rspamd_log->saved_function,
- rspamd_log->saved_loglevel,
- rspamd_log->saved_message,
- arg);
-
- g_free (rspamd_log->saved_message);
- g_free (rspamd_log->saved_function);
- g_free (rspamd_log->saved_module);
- g_free (rspamd_log->saved_id);
- rspamd_log->saved_message = NULL;
- rspamd_log->saved_function = NULL;
- rspamd_log->saved_module = NULL;
- rspamd_log->saved_id = NULL;
- }
-
- file_log_function ("logger", NULL,
- G_STRFUNC,
- level_flags,
- tmpbuf,
- arg);
- /* It is safe to use temporary buffer here as it is not static */
- file_log_function (module, id,
- function,
- level_flags,
- message,
- arg);
- return;
- }
- else {
- rspamd_log->repeats = 0;
- }
- }
- if (!got_time) {
- now = rspamd_get_calendar_ticks ();
- }
-
- /* Format time */
- if (!(rspamd_log->flags & RSPAMD_LOG_FLAG_SYSTEMD)) {
- log_time (now, rspamd_log, timebuf, sizeof (timebuf));
- }
-
- cptype = g_quark_to_string (rspamd_log->process_type);
-
- if (rspamd_log->flags & RSPAMD_LOG_FLAG_COLOR) {
- if (level_flags & (G_LOG_LEVEL_INFO|G_LOG_LEVEL_MESSAGE)) {
- /* White */
- r = rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "\033[0;37m");
- }
- else if (level_flags & G_LOG_LEVEL_WARNING) {
- /* Magenta */
- r = rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "\033[0;32m");
- }
- else if (level_flags & G_LOG_LEVEL_CRITICAL) {
- /* Red */
- r = rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "\033[1;31m");
- }
- }
- else {
- r = 0;
- }
-
- if (!(rspamd_log->flags & RSPAMD_LOG_FLAG_SYSTEMD)) {
- r += rspamd_snprintf (tmpbuf + r,
- sizeof (tmpbuf) - r,
- "%s #%P(%s) ",
- timebuf,
- rspamd_log->pid,
- cptype);
- }
- else {
- r += rspamd_snprintf (tmpbuf + r,
- sizeof (tmpbuf) - r,
- "(%s) ",
- cptype);
- }
-
- modulebuf[0] = '\0';
- mremain = sizeof (modulebuf);
- m = modulebuf;
-
- if (id != NULL) {
- guint slen = strlen (id);
- slen = MIN (LOG_ID, slen);
- mr = rspamd_snprintf (m, mremain, "<%*.s>; ", slen,
- id);
- m += mr;
- mremain -= mr;
- }
- if (module != NULL) {
- mr = rspamd_snprintf (m, mremain, "%s; ", module);
- m += mr;
- mremain -= mr;
- }
- if (function != NULL) {
- mr = rspamd_snprintf (m, mremain, "%s: ", function);
- m += mr;
- mremain -= mr;
- }
- else {
- mr = rspamd_snprintf (m, mremain, ": ");
- m += mr;
- mremain -= mr;
- }
-
- /* Construct IOV for log line */
- iov[0].iov_base = tmpbuf;
- iov[0].iov_len = r;
- iov[1].iov_base = modulebuf;
- iov[1].iov_len = m - modulebuf;
- iov[2].iov_base = (void *) message;
- iov[2].iov_len = mlen;
- iov[3].iov_base = (void *) &lf_chr;
- iov[3].iov_len = 1;
-
- if (rspamd_log->flags & RSPAMD_LOG_FLAG_COLOR) {
- iov[4].iov_base = "\033[0m";
- iov[4].iov_len = sizeof ("\033[0m") - 1;
- /* Call helper (for buffering) */
- file_log_helper (rspamd_log, iov, 5, level_flags);
- }
- else {
- /* Call helper (for buffering) */
- file_log_helper (rspamd_log, iov, 4, level_flags);
- }
- }
- else {
- /* Rspamadm logging version */
- mlen = strlen (message);
-
- if (rspamd_log->flags & RSPAMD_LOG_FLAG_COLOR) {
- if (level_flags & (G_LOG_LEVEL_INFO|G_LOG_LEVEL_MESSAGE)) {
- /* White */
- r = rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "\033[0;37m");
- }
- else if (level_flags & G_LOG_LEVEL_WARNING) {
- /* Magenta */
- r = rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "\033[0;32m");
- }
- else if (level_flags & G_LOG_LEVEL_CRITICAL) {
- /* Red */
- r = rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "\033[1;31m");
- }
-
- iov[0].iov_base = (void *) tmpbuf;
- iov[0].iov_len = r;
- r = 1;
- }
- else {
- r = 0;
- }
-
-
- if (rspamd_log->log_level == G_LOG_LEVEL_DEBUG) {
- log_time (rspamd_get_calendar_ticks (),
- rspamd_log, timebuf, sizeof (timebuf));
- iov[r].iov_base = (void *) timebuf;
- iov[r++].iov_len = strlen (timebuf);
- iov[r].iov_base = (void *) " ";
- iov[r++].iov_len = 1;
- }
-
- iov[r].iov_base = (void *) message;
- iov[r++].iov_len = mlen;
- iov[r].iov_base = (void *) &lf_chr;
- iov[r++].iov_len = 1;
-
- if (rspamd_log->flags & RSPAMD_LOG_FLAG_COLOR) {
- iov[r].iov_base = "\033[0m";
- iov[r++].iov_len = sizeof ("\033[0m") - 1;
- /* Call helper (for buffering) */
- file_log_helper (rspamd_log, iov, r, level_flags);
- }
- else {
- /* Call helper (for buffering) */
- file_log_helper (rspamd_log, iov, r, level_flags);
- }
- }
- }
-
- /**
- * Write log line depending on ip
- */
- void
- rspamd_conditional_debug (rspamd_logger_t *rspamd_log,
- rspamd_inet_addr_t *addr, const gchar *module, const gchar *id,
- const gchar *function, const gchar *fmt, ...)
- {
- static gchar logbuf[LOGBUF_LEN];
- va_list vp;
- gchar *end;
- guint mod_id;
-
- if (rspamd_log == NULL) {
- rspamd_log = default_logger;
- }
-
- mod_id = rspamd_logger_add_debug_module (module);
-
- if (rspamd_logger_need_log (rspamd_log, G_LOG_LEVEL_DEBUG, mod_id) ||
- rspamd_log->is_debug) {
- if (rspamd_log->debug_ip && addr != NULL) {
- if (rspamd_match_radix_map_addr (rspamd_log->debug_ip,
- addr) == NULL) {
- return;
- }
- }
-
- va_start (vp, fmt);
- end = rspamd_vsnprintf (logbuf, sizeof (logbuf), fmt, vp);
- *end = '\0';
- va_end (vp);
- rspamd_log->log_func (module, id,
- function,
- G_LOG_LEVEL_DEBUG | RSPAMD_LOG_FORCED,
- logbuf,
- rspamd_log);
- }
- }
-
- void
- rspamd_conditional_debug_fast (rspamd_logger_t *rspamd_log,
- rspamd_inet_addr_t *addr,
- guint mod_id, const gchar *module, const gchar *id,
- const gchar *function, const gchar *fmt, ...)
- {
- static gchar logbuf[LOGBUF_LEN];
- va_list vp;
- gchar *end;
-
- if (rspamd_log == NULL) {
- rspamd_log = default_logger;
- }
-
- if (rspamd_logger_need_log (rspamd_log, G_LOG_LEVEL_DEBUG, mod_id) ||
- rspamd_log->is_debug) {
- if (rspamd_log->debug_ip && addr != NULL) {
- if (rspamd_match_radix_map_addr (rspamd_log->debug_ip, addr)
- == NULL) {
- return;
- }
- }
-
- va_start (vp, fmt);
- end = rspamd_vsnprintf (logbuf, sizeof (logbuf), fmt, vp);
- *end = '\0';
- va_end (vp);
- rspamd_log->log_func (module, id,
- function,
- G_LOG_LEVEL_DEBUG | RSPAMD_LOG_FORCED,
- logbuf,
- rspamd_log);
- }
- }
-
- /**
- * Wrapper for glib logger
- */
- void
- rspamd_glib_log_function (const gchar *log_domain,
- GLogLevelFlags log_level,
- const gchar *message,
- gpointer arg)
- {
- rspamd_logger_t *rspamd_log = arg;
-
- if (rspamd_log->enabled &&
- rspamd_logger_need_log (rspamd_log, log_level, -1)) {
- rspamd_log->log_func ("glib", NULL,
- NULL,
- log_level,
- message,
- rspamd_log);
- }
- }
-
- void
- rspamd_glib_printerr_function (const gchar *message)
- {
- rspamd_common_log_function (NULL, G_LOG_LEVEL_CRITICAL, "glib",
- NULL, G_STRFUNC,
- "%s", message);
- }
-
- /**
- * Temporary turn on debugging
- */
- void
- rspamd_log_debug (rspamd_logger_t *rspamd_log)
- {
- rspamd_log->is_debug = TRUE;
- }
-
- /**
- * Turn off temporary debugging
- */
- void
- rspamd_log_nodebug (rspamd_logger_t *rspamd_log)
- {
- rspamd_log->is_debug = FALSE;
- }
-
- const guint64 *
- rspamd_log_counters (rspamd_logger_t *logger)
- {
- if (logger) {
- return logger->log_cnt;
- }
-
- return NULL;
- }
-
- void
- rspamd_log_nolock (rspamd_logger_t *logger)
- {
- if (logger) {
- logger->no_lock = TRUE;
- }
- }
-
- void
- rspamd_log_lock (rspamd_logger_t *logger)
- {
- if (logger) {
- logger->no_lock = FALSE;
- }
- }
-
- static gint
- rspamd_log_errlog_cmp (const ucl_object_t **o1, const ucl_object_t **o2)
- {
- const ucl_object_t *ts1, *ts2;
-
- ts1 = ucl_object_lookup (*o1, "ts");
- ts2 = ucl_object_lookup (*o2, "ts");
-
- if (ts1 && ts2) {
- gdouble t1 = ucl_object_todouble (ts1), t2 = ucl_object_todouble (ts2);
-
- if (t1 > t2) {
- return -1;
- }
- else if (t2 > t1) {
- return 1;
- }
- }
-
- return 0;
- }
-
- ucl_object_t *
- rspamd_log_errorbuf_export (const rspamd_logger_t *logger)
- {
- struct rspamd_logger_error_elt *cpy, *cur;
- ucl_object_t *top = ucl_object_typed_new (UCL_ARRAY);
- guint i;
-
- if (logger->errlog == NULL) {
- return top;
- }
-
- cpy = g_malloc0_n (logger->errlog->max_elts,
- sizeof (*cpy) + logger->errlog->elt_len);
- memcpy (cpy, logger->errlog->elts, logger->errlog->max_elts *
- (sizeof (*cpy) + logger->errlog->elt_len));
-
- for (i = 0; i < logger->errlog->max_elts; i ++) {
- cur = (struct rspamd_logger_error_elt *)((guchar *)cpy +
- i * ((sizeof (*cpy) + logger->errlog->elt_len)));
- if (cur->completed) {
- ucl_object_t *obj = ucl_object_typed_new (UCL_OBJECT);
-
- ucl_object_insert_key (obj, ucl_object_fromdouble (cur->ts),
- "ts", 0, false);
- ucl_object_insert_key (obj, ucl_object_fromint (cur->pid),
- "pid", 0, false);
- ucl_object_insert_key (obj,
- ucl_object_fromstring (g_quark_to_string (cur->ptype)),
- "type", 0, false);
- ucl_object_insert_key (obj, ucl_object_fromstring (cur->id),
- "id", 0, false);
- ucl_object_insert_key (obj, ucl_object_fromstring (cur->module),
- "module", 0, false);
- ucl_object_insert_key (obj, ucl_object_fromstring (cur->message),
- "message", 0, false);
-
- ucl_array_append (top, obj);
- }
- }
-
- ucl_object_array_sort (top, rspamd_log_errlog_cmp);
- g_free (cpy);
-
- return top;
- }
-
- static guint
- rspamd_logger_allocate_mod_bit (void)
- {
- if (log_modules->bitset_allocated * NBBY > log_modules->bitset_len + 1) {
- log_modules->bitset_len ++;
- return log_modules->bitset_len - 1;
- }
- else {
- /* Need to expand */
- log_modules->bitset_allocated *= 2;
- log_modules->bitset = g_realloc (log_modules->bitset,
- log_modules->bitset_allocated);
-
- return rspamd_logger_allocate_mod_bit ();
- }
- }
-
- guint
- rspamd_logger_add_debug_module (const gchar *mname)
- {
- struct rspamd_log_module *m;
-
- if (mname == NULL) {
- return (guint)-1;
- }
-
- if (log_modules == NULL) {
- log_modules = g_malloc0 (sizeof (*log_modules));
- log_modules->modules = g_hash_table_new (rspamd_strcase_hash,
- rspamd_strcase_equal);
- log_modules->bitset_allocated = 16;
- log_modules->bitset_len = 0;
- log_modules->bitset = g_malloc0 (log_modules->bitset_allocated);
- }
-
- if ((m = g_hash_table_lookup (log_modules->modules, mname)) == NULL) {
- m = g_malloc0 (sizeof (*m));
- m->mname = g_strdup (mname);
- m->id = rspamd_logger_allocate_mod_bit ();
- clrbit (log_modules->bitset, m->id);
- g_hash_table_insert (log_modules->modules, m->mname, m);
- }
-
- return m->id;
- }
-
- void
- rspamd_logger_configure_modules (GHashTable *mods_enabled)
- {
- GHashTableIter it;
- gpointer k, v;
- guint id;
-
- /* On first iteration, we go through all modules enabled and add missing ones */
- g_hash_table_iter_init (&it, mods_enabled);
-
- while (g_hash_table_iter_next (&it, &k, &v)) {
- rspamd_logger_add_debug_module ((const gchar *)k);
- }
-
- g_hash_table_iter_init (&it, mods_enabled);
-
- while (g_hash_table_iter_next (&it, &k, &v)) {
- id = rspamd_logger_add_debug_module ((const gchar *)k);
-
- if (isclr (log_modules->bitset, id)) {
- msg_info ("enable debugging for module %s (%d)", (const gchar *) k,
- id);
- setbit (log_modules->bitset, id);
- }
- }
- }
-
- rspamd_logger_t*
- rspamd_logger_get_singleton (void)
- {
- return default_logger;
- }
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