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- /*
- * Copyright 2024 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 "task.h"
- #include "rspamd.h"
- #include "scan_result.h"
- #include "libserver/protocol.h"
- #include "libserver/protocol_internal.h"
- #include "message.h"
- #include "lua/lua_common.h"
- #include "email_addr.h"
- #include "src/libserver/composites/composites.h"
- #include "stat_api.h"
- #include "unix-std.h"
- #include "utlist.h"
- #include "libserver/mempool_vars_internal.h"
- #include "libserver/cfg_file_private.h"
- #include "libmime/lang_detection.h"
- #include "libmime/scan_result_private.h"
- #include "lua/lua_classnames.h"
-
- #ifdef WITH_JEMALLOC
- #include <jemalloc/jemalloc.h>
- #else
- #if defined(__GLIBC__) && defined(_GNU_SOURCE)
- #include <malloc.h>
- #endif
- #endif
-
- #include <math.h>
-
- #ifdef SYS_ZSTD
- #include "zstd.h"
- #else
- #include "contrib/zstd/zstd.h"
- #endif
-
- __KHASH_IMPL(rspamd_req_headers_hash, static inline,
- rspamd_ftok_t *, struct rspamd_request_header_chain *, 1,
- rspamd_ftok_icase_hash, rspamd_ftok_icase_equal)
-
- static GQuark
- rspamd_task_quark(void)
- {
- return g_quark_from_static_string("task-error");
- }
-
- /*
- * Create new task
- */
- struct rspamd_task *
- rspamd_task_new(struct rspamd_worker *worker,
- struct rspamd_config *cfg,
- rspamd_mempool_t *pool,
- struct rspamd_lang_detector *lang_det,
- struct ev_loop *event_loop,
- gboolean debug_mem)
- {
- struct rspamd_task *new_task;
- rspamd_mempool_t *task_pool;
- unsigned int flags = 0;
-
- if (pool == NULL) {
- task_pool = rspamd_mempool_new(rspamd_mempool_suggest_size(),
- "task", debug_mem ? RSPAMD_MEMPOOL_DEBUG : 0);
- flags |= RSPAMD_TASK_FLAG_OWN_POOL;
- }
- else {
- task_pool = pool;
- }
-
- new_task = rspamd_mempool_alloc0(task_pool, sizeof(struct rspamd_task));
- new_task->task_pool = task_pool;
- new_task->flags = flags;
- new_task->worker = worker;
- new_task->lang_det = lang_det;
-
- if (cfg) {
- new_task->cfg = cfg;
- REF_RETAIN(cfg);
-
- if (cfg->check_all_filters) {
- new_task->flags |= RSPAMD_TASK_FLAG_PASS_ALL;
- }
-
-
- if (cfg->re_cache) {
- new_task->re_rt = rspamd_re_cache_runtime_new(cfg->re_cache);
- }
-
- if (new_task->lang_det == NULL && cfg->lang_det != NULL) {
- new_task->lang_det = cfg->lang_det;
- }
- }
-
- new_task->event_loop = event_loop;
- new_task->task_timestamp = ev_time();
- new_task->time_real_finish = NAN;
-
- new_task->request_headers = kh_init(rspamd_req_headers_hash);
- new_task->sock = -1;
- new_task->flags |= (RSPAMD_TASK_FLAG_MIME);
- /* Default results chain */
- rspamd_create_metric_result(new_task, NULL, -1);
-
- new_task->queue_id = "undef";
- new_task->messages = ucl_object_typed_new(UCL_OBJECT);
- kh_static_init(rspamd_task_lua_cache, &new_task->lua_cache);
-
- return new_task;
- }
-
-
- static void
- rspamd_task_reply(struct rspamd_task *task)
- {
- const ev_tstamp write_timeout = 5.0;
-
- if (task->fin_callback) {
- task->fin_callback(task, task->fin_arg);
- }
- else {
- if (!(task->processed_stages & RSPAMD_TASK_STAGE_REPLIED)) {
- rspamd_protocol_write_reply(task, write_timeout);
- }
- }
- }
-
- /*
- * Called if all filters are processed
- * @return TRUE if session should be terminated
- */
- gboolean
- rspamd_task_fin(void *arg)
- {
- struct rspamd_task *task = (struct rspamd_task *) arg;
-
- /* Task is already finished or skipped */
- if (RSPAMD_TASK_IS_PROCESSED(task)) {
- rspamd_task_reply(task);
- return TRUE;
- }
-
- if (!rspamd_task_process(task, RSPAMD_TASK_PROCESS_ALL)) {
- rspamd_task_reply(task);
- return TRUE;
- }
-
- if (RSPAMD_TASK_IS_PROCESSED(task)) {
- rspamd_task_reply(task);
- return TRUE;
- }
-
- /* One more iteration */
- return FALSE;
- }
-
- /*
- * Free all structures of worker_task
- */
- void rspamd_task_free(struct rspamd_task *task)
- {
- struct rspamd_email_address *addr;
- static unsigned int free_iters = 0;
- unsigned int i;
-
- if (task) {
- debug_task("free pointer %p", task);
-
- if (task->rcpt_envelope) {
- for (i = 0; i < task->rcpt_envelope->len; i++) {
- addr = g_ptr_array_index(task->rcpt_envelope, i);
- rspamd_email_address_free(addr);
- }
-
- g_ptr_array_free(task->rcpt_envelope, TRUE);
- }
-
- if (task->from_envelope) {
- rspamd_email_address_free(task->from_envelope);
- }
-
- if (task->from_envelope_orig) {
- rspamd_email_address_free(task->from_envelope_orig);
- }
-
- if (task->meta_words) {
- g_array_free(task->meta_words, TRUE);
- }
-
- ucl_object_unref(task->messages);
-
- if (task->re_rt) {
- rspamd_re_cache_runtime_destroy(task->re_rt);
- }
-
- if (task->http_conn != NULL) {
- rspamd_http_connection_reset(task->http_conn);
- rspamd_http_connection_unref(task->http_conn);
- }
-
- if (task->settings != NULL) {
- ucl_object_unref(task->settings);
- }
-
- if (task->settings_elt != NULL) {
- REF_RELEASE(task->settings_elt);
- }
-
- if (task->client_addr) {
- rspamd_inet_address_free(task->client_addr);
- }
-
- if (task->from_addr) {
- rspamd_inet_address_free(task->from_addr);
- }
-
- if (task->err) {
- g_error_free(task->err);
- }
-
- ev_timer_stop(task->event_loop, &task->timeout_ev);
- ev_io_stop(task->event_loop, &task->guard_ev);
-
- if (task->sock != -1) {
- close(task->sock);
- }
-
- if (task->cfg) {
-
-
- struct rspamd_lua_cached_entry entry;
-
- kh_foreach_value(&task->lua_cache, entry, {
- luaL_unref(task->cfg->lua_state,
- LUA_REGISTRYINDEX, entry.ref);
- });
- kh_static_destroy(rspamd_task_lua_cache, &task->lua_cache);
-
- if (task->cfg->full_gc_iters && (++free_iters > task->cfg->full_gc_iters)) {
- /* Perform more expensive cleanup cycle */
- gsize allocated = 0, active = 0, metadata = 0,
- resident = 0, mapped = 0, old_lua_mem = 0;
- double t1, t2;
-
- old_lua_mem = lua_gc(task->cfg->lua_state, LUA_GCCOUNT, 0);
- t1 = rspamd_get_ticks(FALSE);
-
- #ifdef WITH_JEMALLOC
- gsize sz = sizeof(gsize);
- mallctl("stats.allocated", &allocated, &sz, NULL, 0);
- mallctl("stats.active", &active, &sz, NULL, 0);
- mallctl("stats.metadata", &metadata, &sz, NULL, 0);
- mallctl("stats.resident", &resident, &sz, NULL, 0);
- mallctl("stats.mapped", &mapped, &sz, NULL, 0);
- #else
- #if defined(__GLIBC__) && defined(_GNU_SOURCE)
- malloc_trim(0);
- #endif
- #endif
- lua_gc(task->cfg->lua_state, LUA_GCCOLLECT, 0);
- t2 = rspamd_get_ticks(FALSE);
-
- msg_notice_task("perform full gc cycle; memory stats: "
- "%Hz allocated, %Hz active, %Hz metadata, %Hz resident, %Hz mapped;"
- " lua memory: %z kb -> %d kb; %f ms for gc iter",
- allocated, active, metadata, resident, mapped,
- old_lua_mem, lua_gc(task->cfg->lua_state, LUA_GCCOUNT, 0),
- (t2 - t1) * 1000.0);
- free_iters = rspamd_time_jitter(0,
- (double) task->cfg->full_gc_iters / 2);
- }
-
- REF_RELEASE(task->cfg);
- }
-
- kh_destroy(rspamd_req_headers_hash, task->request_headers);
- rspamd_message_unref(task->message);
-
- if (task->flags & RSPAMD_TASK_FLAG_OWN_POOL) {
- rspamd_mempool_destructors_enforce(task->task_pool);
-
- if (task->symcache_runtime) {
- rspamd_symcache_runtime_destroy(task);
- }
-
- rspamd_mempool_delete(task->task_pool);
- }
- else if (task->symcache_runtime) {
- rspamd_symcache_runtime_destroy(task);
- }
- }
- }
-
- struct rspamd_task_map {
- gpointer begin;
- gulong len;
- int fd;
- };
-
- static void
- rspamd_task_unmapper(gpointer ud)
- {
- struct rspamd_task_map *m = ud;
-
- munmap(m->begin, m->len);
- close(m->fd);
- }
-
- gboolean
- rspamd_task_load_message(struct rspamd_task *task,
- struct rspamd_http_message *msg, const char *start, gsize len)
- {
- unsigned int control_len, r;
- struct ucl_parser *parser;
- ucl_object_t *control_obj;
- char filepath[PATH_MAX], *fp;
- int fd, flen;
- gulong offset = 0, shmem_size = 0;
- rspamd_ftok_t *tok;
- gpointer map;
- struct stat st;
- struct rspamd_task_map *m;
- const char *ft;
-
- #ifdef HAVE_SANE_SHMEM
- ft = "shm";
- #else
- ft = "file";
- #endif
-
- if (msg) {
- rspamd_protocol_handle_headers(task, msg);
- }
-
- tok = rspamd_task_get_request_header(task, "shm");
-
- if (tok) {
- /* Shared memory part */
- r = rspamd_strlcpy(filepath, tok->begin,
- MIN(sizeof(filepath), tok->len + 1));
-
- rspamd_url_decode(filepath, filepath, r + 1);
- flen = strlen(filepath);
-
- if (filepath[0] == '"' && flen > 2) {
- /* We need to unquote filepath */
- fp = &filepath[1];
- fp[flen - 2] = '\0';
- }
- else {
- fp = &filepath[0];
- }
- #ifdef HAVE_SANE_SHMEM
- fd = shm_open(fp, O_RDONLY, 00600);
- #else
- fd = open(fp, O_RDONLY, 00600);
- #endif
- if (fd == -1) {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Cannot open %s segment (%s): %s", ft, fp, strerror(errno));
- return FALSE;
- }
-
- if (fstat(fd, &st) == -1) {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Cannot stat %s segment (%s): %s", ft, fp, strerror(errno));
- close(fd);
-
- return FALSE;
- }
-
- map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
-
- if (map == MAP_FAILED) {
- close(fd);
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Cannot mmap %s (%s): %s", ft, fp, strerror(errno));
- return FALSE;
- }
-
- tok = rspamd_task_get_request_header(task, "shm-offset");
-
- if (tok) {
- rspamd_strtoul(tok->begin, tok->len, &offset);
-
- if (offset > (gulong) st.st_size) {
- msg_err_task("invalid offset %ul (%ul available) for shm "
- "segment %s",
- offset, (gulong) st.st_size, fp);
- munmap(map, st.st_size);
- close(fd);
-
- return FALSE;
- }
- }
-
- tok = rspamd_task_get_request_header(task, "shm-length");
- shmem_size = st.st_size;
-
-
- if (tok) {
- rspamd_strtoul(tok->begin, tok->len, &shmem_size);
-
- if (shmem_size > (gulong) st.st_size) {
- msg_err_task("invalid length %ul (%ul available) for %s "
- "segment %s",
- shmem_size, (gulong) st.st_size, ft, fp);
- munmap(map, st.st_size);
- close(fd);
-
- return FALSE;
- }
- }
-
- task->msg.begin = ((unsigned char *) map) + offset;
- task->msg.len = shmem_size;
- m = rspamd_mempool_alloc(task->task_pool, sizeof(*m));
- m->begin = map;
- m->len = st.st_size;
- m->fd = fd;
-
- msg_info_task("loaded message from shared memory %s (%ul size, %ul offset), fd=%d",
- fp, shmem_size, offset, fd);
-
- rspamd_mempool_add_destructor(task->task_pool, rspamd_task_unmapper, m);
- }
- else {
- /* Try file */
- tok = rspamd_task_get_request_header(task, "file");
-
- if (tok == NULL) {
- tok = rspamd_task_get_request_header(task, "path");
- }
-
- if (tok) {
- debug_task("want to scan file %T", tok);
-
- r = rspamd_strlcpy(filepath, tok->begin,
- MIN(sizeof(filepath), tok->len + 1));
-
- rspamd_url_decode(filepath, filepath, r + 1);
- flen = strlen(filepath);
-
- if (filepath[0] == '"' && flen > 2) {
- /* We need to unquote filepath */
- fp = &filepath[1];
- fp[flen - 2] = '\0';
- }
- else {
- fp = &filepath[0];
- }
-
- if (stat(fp, &st) == -1) {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Invalid file (%s): %s", fp, strerror(errno));
- return FALSE;
- }
-
- if (G_UNLIKELY(st.st_size == 0)) {
- /* Empty file */
- task->flags |= RSPAMD_TASK_FLAG_EMPTY;
- task->msg.begin = rspamd_mempool_strdup(task->task_pool, "");
- task->msg.len = 0;
- }
- else {
- fd = open(fp, O_RDONLY);
-
- if (fd == -1) {
- g_set_error(&task->err, rspamd_task_quark(),
- RSPAMD_PROTOCOL_ERROR,
- "Cannot open file (%s): %s", fp, strerror(errno));
- return FALSE;
- }
-
- map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
-
-
- if (map == MAP_FAILED) {
- close(fd);
- g_set_error(&task->err, rspamd_task_quark(),
- RSPAMD_PROTOCOL_ERROR,
- "Cannot mmap file (%s): %s", fp, strerror(errno));
- return FALSE;
- }
-
- task->msg.begin = map;
- task->msg.len = st.st_size;
- m = rspamd_mempool_alloc(task->task_pool, sizeof(*m));
- m->begin = map;
- m->len = st.st_size;
- m->fd = fd;
-
- rspamd_mempool_add_destructor(task->task_pool, rspamd_task_unmapper, m);
- }
-
- task->msg.fpath = rspamd_mempool_strdup(task->task_pool, fp);
- task->flags |= RSPAMD_TASK_FLAG_FILE;
-
- msg_info_task("loaded message from file %s", fp);
- }
- else {
- /* Plain data */
- task->msg.begin = start;
- task->msg.len = len;
- }
- }
-
-
- debug_task("got input of length %z", task->msg.len);
-
- /* Check compression */
- tok = rspamd_task_get_request_header(task, "compression");
-
- if (tok) {
- /* Need to uncompress */
- rspamd_ftok_t t;
-
- t.begin = "zstd";
- t.len = 4;
-
- if (rspamd_ftok_casecmp(tok, &t) == 0) {
- ZSTD_DStream *zstream;
- ZSTD_inBuffer zin;
- ZSTD_outBuffer zout;
- unsigned char *out;
- gsize outlen, r;
- gulong dict_id;
-
- if (!rspamd_libs_reset_decompression(task->cfg->libs_ctx)) {
- g_set_error(&task->err, rspamd_task_quark(),
- RSPAMD_PROTOCOL_ERROR,
- "Cannot decompress, decompressor init failed");
-
- return FALSE;
- }
-
- tok = rspamd_task_get_request_header(task, "dictionary");
-
- if (tok != NULL) {
- /* We need to use custom dictionary */
- if (!rspamd_strtoul(tok->begin, tok->len, &dict_id)) {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Non numeric dictionary");
-
- return FALSE;
- }
-
- if (!task->cfg->libs_ctx->in_dict) {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Unknown dictionary, undefined locally");
-
- return FALSE;
- }
-
- if (task->cfg->libs_ctx->in_dict->id != dict_id) {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Unknown dictionary, invalid dictionary id");
-
- return FALSE;
- }
- }
-
- zstream = task->cfg->libs_ctx->in_zstream;
-
- zin.pos = 0;
- zin.src = task->msg.begin;
- zin.size = task->msg.len;
-
- if ((outlen = ZSTD_getDecompressedSize(task->msg.begin, task->msg.len)) == 0) {
- outlen = ZSTD_DStreamOutSize();
- }
-
- out = g_malloc(outlen);
- zout.dst = out;
- zout.pos = 0;
- zout.size = outlen;
-
- while (zin.pos < zin.size) {
- r = ZSTD_decompressStream(zstream, &zout, &zin);
-
- if (ZSTD_isError(r)) {
- g_set_error(&task->err, rspamd_task_quark(),
- RSPAMD_PROTOCOL_ERROR,
- "Decompression error: %s", ZSTD_getErrorName(r));
-
- return FALSE;
- }
-
- if (zout.pos == zout.size) {
- /* We need to extend output buffer */
- zout.size = zout.size * 2 + 1;
- zout.dst = g_realloc(zout.dst, zout.size);
- }
- }
-
- rspamd_mempool_add_destructor(task->task_pool, g_free, zout.dst);
- task->msg.begin = zout.dst;
- task->msg.len = zout.pos;
- task->protocol_flags |= RSPAMD_TASK_PROTOCOL_FLAG_COMPRESSED;
-
- msg_info_task("loaded message from zstd compressed stream; "
- "compressed: %ul; uncompressed: %ul",
- (gulong) zin.size, (gulong) zout.pos);
- }
- else {
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Invalid compression method");
- return FALSE;
- }
- }
-
- if (task->msg.len == 0) {
- task->flags |= RSPAMD_TASK_FLAG_EMPTY;
- }
-
- if (task->protocol_flags & RSPAMD_TASK_PROTOCOL_FLAG_HAS_CONTROL) {
- rspamd_ftok_t *hv = rspamd_task_get_request_header(task, MLEN_HEADER);
- gulong message_len = 0;
-
- if (!hv || !rspamd_strtoul(hv->begin, hv->len, &message_len) ||
- task->msg.len < message_len) {
- msg_warn_task("message has invalid message length: %ul and total len: %ul",
- message_len, task->msg.len);
- g_set_error(&task->err, rspamd_task_quark(), RSPAMD_PROTOCOL_ERROR,
- "Invalid length");
- return FALSE;
- }
-
- control_len = task->msg.len - message_len;
-
- if (control_len > 0) {
- parser = ucl_parser_new(UCL_PARSER_KEY_LOWERCASE);
-
- if (!ucl_parser_add_chunk(parser, task->msg.begin, control_len)) {
- msg_warn_task("processing of control chunk failed: %s",
- ucl_parser_get_error(parser));
- ucl_parser_free(parser);
- }
- else {
- control_obj = ucl_parser_get_object(parser);
- ucl_parser_free(parser);
- rspamd_protocol_handle_control(task, control_obj);
- ucl_object_unref(control_obj);
- }
-
- task->msg.begin += control_len;
- task->msg.len -= control_len;
- }
- }
-
- return TRUE;
- }
-
- static unsigned int
- rspamd_task_select_processing_stage(struct rspamd_task *task, unsigned int stages)
- {
- unsigned int st, mask;
-
- mask = task->processed_stages;
-
- if (mask == 0) {
- st = 0;
- }
- else {
- for (st = 1; mask != 1; st++) {
- mask = mask >> 1u;
- }
- }
-
- st = 1 << st;
-
- if (stages & st) {
- return st;
- }
- else if (st < RSPAMD_TASK_STAGE_DONE) {
- /* We assume that the stage that was not requested is done */
- task->processed_stages |= st;
- return rspamd_task_select_processing_stage(task, stages);
- }
-
- /* We are done */
- return RSPAMD_TASK_STAGE_DONE;
- }
-
- gboolean
- rspamd_task_process(struct rspamd_task *task, unsigned int stages)
- {
- unsigned int st;
- gboolean ret = TRUE, all_done = TRUE;
- GError *stat_error = NULL;
-
- /* Avoid nested calls */
- if (task->flags & RSPAMD_TASK_FLAG_PROCESSING) {
- return TRUE;
- }
-
- if (RSPAMD_TASK_IS_PROCESSED(task)) {
- return TRUE;
- }
-
- task->flags |= RSPAMD_TASK_FLAG_PROCESSING;
-
- st = rspamd_task_select_processing_stage(task, stages);
-
- switch (st) {
- case RSPAMD_TASK_STAGE_CONNFILTERS:
- all_done = rspamd_symcache_process_symbols(task, task->cfg->cache, st);
- break;
-
- case RSPAMD_TASK_STAGE_READ_MESSAGE:
- if (!rspamd_message_parse(task)) {
- ret = FALSE;
- }
- break;
-
- case RSPAMD_TASK_STAGE_PROCESS_MESSAGE:
- if (!(task->flags & RSPAMD_TASK_FLAG_SKIP_PROCESS)) {
- rspamd_message_process(task);
- }
- break;
-
- case RSPAMD_TASK_STAGE_PRE_FILTERS:
- case RSPAMD_TASK_STAGE_FILTERS:
- all_done = rspamd_symcache_process_symbols(task, task->cfg->cache, st);
- break;
-
- case RSPAMD_TASK_STAGE_CLASSIFIERS:
- case RSPAMD_TASK_STAGE_CLASSIFIERS_PRE:
- case RSPAMD_TASK_STAGE_CLASSIFIERS_POST:
- if (!RSPAMD_TASK_IS_EMPTY(task)) {
- if (rspamd_stat_classify(task, task->cfg->lua_state, st, &stat_error) ==
- RSPAMD_STAT_PROCESS_ERROR) {
- msg_err_task("classify error: %e", stat_error);
- g_error_free(stat_error);
- }
- }
- break;
-
- case RSPAMD_TASK_STAGE_COMPOSITES:
- rspamd_composites_process_task(task);
- task->result->nresults_postfilters = task->result->nresults;
- break;
-
- case RSPAMD_TASK_STAGE_POST_FILTERS:
- all_done = rspamd_symcache_process_symbols(task, task->cfg->cache,
- st);
-
- if (all_done && (task->flags & RSPAMD_TASK_FLAG_LEARN_AUTO) &&
- !RSPAMD_TASK_IS_EMPTY(task) &&
- !(task->flags & (RSPAMD_TASK_FLAG_LEARN_SPAM | RSPAMD_TASK_FLAG_LEARN_HAM))) {
- rspamd_stat_check_autolearn(task);
- }
- break;
-
- case RSPAMD_TASK_STAGE_LEARN:
- case RSPAMD_TASK_STAGE_LEARN_PRE:
- case RSPAMD_TASK_STAGE_LEARN_POST:
- if (task->flags & (RSPAMD_TASK_FLAG_LEARN_SPAM | RSPAMD_TASK_FLAG_LEARN_HAM)) {
- if (task->err == NULL) {
- if (!rspamd_stat_learn(task,
- task->flags & RSPAMD_TASK_FLAG_LEARN_SPAM,
- task->cfg->lua_state, task->classifier,
- st, &stat_error)) {
-
- if (stat_error == NULL) {
- g_set_error(&stat_error,
- g_quark_from_static_string("stat"), 500,
- "Unknown statistics error, found on stage %s;"
- " classifier: %s",
- rspamd_task_stage_name(st), task->classifier);
- }
-
- if (stat_error->code >= 400) {
- msg_err_task("learn error: %e", stat_error);
- }
- else {
- msg_notice_task("skip learning: %e", stat_error);
- }
-
- if (!(task->flags & RSPAMD_TASK_FLAG_LEARN_AUTO)) {
- task->err = stat_error;
- task->processed_stages |= RSPAMD_TASK_STAGE_DONE;
- }
- else {
- /* Do not skip idempotent in case of learn error */
- if (stat_error) {
- g_error_free(stat_error);
- }
-
- task->processed_stages |= RSPAMD_TASK_STAGE_LEARN |
- RSPAMD_TASK_STAGE_LEARN_PRE |
- RSPAMD_TASK_STAGE_LEARN_POST;
- }
- }
- }
- }
- break;
- case RSPAMD_TASK_STAGE_COMPOSITES_POST:
- /* Second run of composites processing before idempotent filters (if needed) */
- if (task->result->nresults_postfilters != task->result->nresults) {
- rspamd_composites_process_task(task);
- }
- else {
- msg_debug_task("skip second run of composites as the result has not been changed");
- }
- break;
-
- case RSPAMD_TASK_STAGE_IDEMPOTENT:
- /* Stop task timeout */
- if (ev_can_stop(&task->timeout_ev)) {
- ev_timer_stop(task->event_loop, &task->timeout_ev);
- }
-
- all_done = rspamd_symcache_process_symbols(task, task->cfg->cache, st);
- break;
-
- case RSPAMD_TASK_STAGE_DONE:
- task->processed_stages |= RSPAMD_TASK_STAGE_DONE;
- break;
-
- default:
- /* TODO: not implemented stage */
- break;
- }
-
- if (RSPAMD_TASK_IS_SKIPPED(task)) {
- /* Set all bits except idempotent filters */
- task->processed_stages |= 0x7FFF;
- }
-
- task->flags &= ~RSPAMD_TASK_FLAG_PROCESSING;
-
- if (!ret || RSPAMD_TASK_IS_PROCESSED(task)) {
- if (!ret) {
- /* Set processed flags */
- task->processed_stages |= RSPAMD_TASK_STAGE_DONE;
- }
-
- msg_debug_task("task is processed");
-
- return ret;
- }
-
- if (ret) {
- if (rspamd_session_events_pending(task->s) != 0) {
- /* We have events pending, so we consider this stage as incomplete */
- msg_debug_task("need more work on stage %d", st);
- }
- else {
- if (all_done) {
- /* Mark the current stage as done and go to the next stage */
- msg_debug_task("completed stage %d", st);
- task->processed_stages |= st;
- }
- else {
- msg_debug_task("need more processing on stage %d", st);
- }
-
- /* Tail recursion */
- return rspamd_task_process(task, stages);
- }
- }
-
- return ret;
- }
-
- struct rspamd_email_address *
- rspamd_task_get_sender(struct rspamd_task *task)
- {
- return task->from_envelope;
- }
-
- static const char *
- rspamd_task_cache_principal_recipient(struct rspamd_task *task,
- const char *rcpt, gsize len)
- {
- char *rcpt_lc;
-
- if (rcpt == NULL) {
- return NULL;
- }
-
- rcpt_lc = rspamd_mempool_alloc(task->task_pool, len + 1);
- rspamd_strlcpy(rcpt_lc, rcpt, len + 1);
- rspamd_str_lc(rcpt_lc, len);
-
- rspamd_mempool_set_variable(task->task_pool,
- RSPAMD_MEMPOOL_PRINCIPAL_RECIPIENT, rcpt_lc, NULL);
-
- return rcpt_lc;
- }
-
- const char *
- rspamd_task_get_principal_recipient(struct rspamd_task *task)
- {
- const char *val;
- struct rspamd_email_address *addr;
- unsigned int i;
-
- val = rspamd_mempool_get_variable(task->task_pool,
- RSPAMD_MEMPOOL_PRINCIPAL_RECIPIENT);
-
- if (val) {
- return val;
- }
-
- if (task->deliver_to) {
- return rspamd_task_cache_principal_recipient(task, task->deliver_to,
- strlen(task->deliver_to));
- }
- if (task->rcpt_envelope != NULL) {
-
- PTR_ARRAY_FOREACH(task->rcpt_envelope, i, addr)
- {
- if (addr->addr && !(addr->flags & RSPAMD_EMAIL_ADDR_ORIGINAL)) {
- return rspamd_task_cache_principal_recipient(task, addr->addr,
- addr->addr_len);
- }
- }
- }
-
- GPtrArray *rcpt_mime = MESSAGE_FIELD_CHECK(task, rcpt_mime);
- if (rcpt_mime != NULL && rcpt_mime->len > 0) {
- PTR_ARRAY_FOREACH(rcpt_mime, i, addr)
- {
- if (addr->addr && !(addr->flags & RSPAMD_EMAIL_ADDR_ORIGINAL)) {
- return rspamd_task_cache_principal_recipient(task, addr->addr,
- addr->addr_len);
- }
- }
- }
-
- return NULL;
- }
-
- gboolean
- rspamd_learn_task_spam(struct rspamd_task *task,
- gboolean is_spam,
- const char *classifier,
- GError **err)
- {
- if (is_spam) {
- task->flags |= RSPAMD_TASK_FLAG_LEARN_SPAM;
- }
- else {
- task->flags |= RSPAMD_TASK_FLAG_LEARN_HAM;
- }
-
- task->classifier = classifier;
-
- return TRUE;
- }
-
- static gboolean
- rspamd_task_log_check_condition(struct rspamd_task *task,
- struct rspamd_log_format *lf)
- {
- gboolean ret = FALSE;
-
- switch (lf->type) {
- case RSPAMD_LOG_MID:
- if (MESSAGE_FIELD_CHECK(task, message_id) &&
- strcmp(MESSAGE_FIELD(task, message_id), "undef") != 0) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_QID:
- if (task->queue_id && strcmp(task->queue_id, "undef") != 0) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_USER:
- if (task->auth_user) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_IP:
- if (task->from_addr && rspamd_ip_is_valid(task->from_addr)) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_SMTP_RCPT:
- case RSPAMD_LOG_SMTP_RCPTS:
- if (task->rcpt_envelope && task->rcpt_envelope->len > 0) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_MIME_RCPT:
- case RSPAMD_LOG_MIME_RCPTS:
- if (MESSAGE_FIELD_CHECK(task, rcpt_mime) &&
- MESSAGE_FIELD(task, rcpt_mime)->len > 0) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_SMTP_FROM:
- if (task->from_envelope) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_MIME_FROM:
- if (MESSAGE_FIELD_CHECK(task, from_mime) &&
- MESSAGE_FIELD(task, from_mime)->len > 0) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_FILENAME:
- if (task->msg.fpath) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_FORCED_ACTION:
- if (task->result->passthrough_result) {
- ret = TRUE;
- }
- break;
- case RSPAMD_LOG_SETTINGS_ID:
- if (task->settings_elt) {
- ret = TRUE;
- }
- break;
- default:
- ret = TRUE;
- break;
- }
-
- return ret;
- }
-
- /*
- * Sort by symbol's score -> name
- */
- static int
- rspamd_task_compare_log_sym(gconstpointer a, gconstpointer b)
- {
- const struct rspamd_symbol_result *s1 = *(const struct rspamd_symbol_result **) a,
- *s2 = *(const struct rspamd_symbol_result **) b;
- double w1, w2;
-
-
- w1 = fabs(s1->score);
- w2 = fabs(s2->score);
-
- if (w1 == w2 && s1->name && s2->name) {
- return strcmp(s1->name, s2->name);
- }
-
- return (w2 - w1) * 1000.0;
- }
-
- static int
- rspamd_task_compare_log_group(gconstpointer a, gconstpointer b)
- {
- const struct rspamd_symbols_group *s1 = *(const struct rspamd_symbols_group **) a,
- *s2 = *(const struct rspamd_symbols_group **) b;
-
- return strcmp(s1->name, s2->name);
- }
-
-
- static rspamd_ftok_t
- rspamd_task_log_metric_res(struct rspamd_task *task,
- struct rspamd_log_format *lf)
- {
- static char scorebuf[32];
- rspamd_ftok_t res = {.begin = NULL, .len = 0};
- struct rspamd_scan_result *mres;
- gboolean first = TRUE;
- rspamd_fstring_t *symbuf;
- struct rspamd_symbol_result *sym;
- GPtrArray *sorted_symbols;
- struct rspamd_action *act;
- struct rspamd_symbols_group *gr;
- unsigned int i, j;
- khiter_t k;
- unsigned int max_log_elts = task->cfg->log_task_max_elts;
-
- mres = task->result;
- act = rspamd_check_action_metric(task, NULL, NULL);
-
- if (mres != NULL) {
- switch (lf->type) {
- case RSPAMD_LOG_ISSPAM:
- if (RSPAMD_TASK_IS_SKIPPED(task)) {
- res.begin = "S";
- }
- else if (!(act->flags & RSPAMD_ACTION_HAM)) {
- res.begin = "T";
- }
- else {
- res.begin = "F";
- }
-
- res.len = 1;
- break;
- case RSPAMD_LOG_ACTION:
- res.begin = act->name;
- res.len = strlen(res.begin);
- break;
- case RSPAMD_LOG_SCORES:
- res.len = rspamd_snprintf(scorebuf, sizeof(scorebuf), "%.2f/%.2f",
- mres->score, rspamd_task_get_required_score(task, mres));
- res.begin = scorebuf;
- break;
- case RSPAMD_LOG_SYMBOLS:
- symbuf = rspamd_fstring_sized_new(128);
- sorted_symbols = g_ptr_array_sized_new(kh_size(mres->symbols));
-
- kh_foreach_value(mres->symbols, sym, {
- if (!(sym->flags & RSPAMD_SYMBOL_RESULT_IGNORED)) {
- g_ptr_array_add(sorted_symbols, (gpointer) sym);
- }
- });
-
- g_ptr_array_sort(sorted_symbols, rspamd_task_compare_log_sym);
-
- for (i = 0; i < sorted_symbols->len; i++) {
- sym = g_ptr_array_index(sorted_symbols, i);
-
- if (first) {
- rspamd_printf_fstring(&symbuf, "%s", sym->name);
- }
- else {
- rspamd_printf_fstring(&symbuf, ",%s", sym->name);
- }
-
- if (lf->flags & RSPAMD_LOG_FMT_FLAG_SYMBOLS_SCORES) {
- rspamd_printf_fstring(&symbuf, "(%.2f)", sym->score);
- }
-
- if (lf->flags & RSPAMD_LOG_FMT_FLAG_SYMBOLS_PARAMS) {
- rspamd_printf_fstring(&symbuf, "{");
-
- if (sym->options) {
- struct rspamd_symbol_option *opt;
-
- j = 0;
-
- DL_FOREACH(sym->opts_head, opt)
- {
- rspamd_printf_fstring(&symbuf, "%*s;",
- (int) opt->optlen, opt->option);
-
- if (j >= max_log_elts && opt->next) {
- rspamd_printf_fstring(&symbuf, "...;");
- break;
- }
-
- j++;
- }
- }
-
- rspamd_printf_fstring(&symbuf, "}");
- }
-
- first = FALSE;
- }
-
- g_ptr_array_free(sorted_symbols, TRUE);
-
- rspamd_mempool_add_destructor(task->task_pool,
- (rspamd_mempool_destruct_t) rspamd_fstring_free,
- symbuf);
- rspamd_mempool_notify_alloc(task->task_pool, symbuf->len);
- res.begin = symbuf->str;
- res.len = symbuf->len;
- break;
-
- case RSPAMD_LOG_GROUPS:
- case RSPAMD_LOG_PUBLIC_GROUPS:
-
- symbuf = rspamd_fstring_sized_new(128);
- sorted_symbols = g_ptr_array_sized_new(kh_size(mres->sym_groups));
-
- kh_foreach_key(mres->sym_groups, gr, {
- if (!(gr->flags & RSPAMD_SYMBOL_GROUP_PUBLIC)) {
- if (lf->type == RSPAMD_LOG_PUBLIC_GROUPS) {
- continue;
- }
- }
-
- g_ptr_array_add(sorted_symbols, gr);
- });
-
- g_ptr_array_sort(sorted_symbols, rspamd_task_compare_log_group);
-
- for (i = 0; i < sorted_symbols->len; i++) {
- gr = g_ptr_array_index(sorted_symbols, i);
-
- if (first) {
- rspamd_printf_fstring(&symbuf, "%s", gr->name);
- }
- else {
- rspamd_printf_fstring(&symbuf, ",%s", gr->name);
- }
-
- k = kh_get(rspamd_symbols_group_hash, mres->sym_groups, gr);
-
- rspamd_printf_fstring(&symbuf, "(%.2f)",
- kh_value(mres->sym_groups, k));
-
- first = FALSE;
- }
-
- g_ptr_array_free(sorted_symbols, TRUE);
-
- rspamd_mempool_add_destructor(task->task_pool,
- (rspamd_mempool_destruct_t) rspamd_fstring_free,
- symbuf);
- rspamd_mempool_notify_alloc(task->task_pool, symbuf->len);
- res.begin = symbuf->str;
- res.len = symbuf->len;
- break;
- default:
- break;
- }
- }
-
- return res;
- }
-
- static rspamd_fstring_t *
- rspamd_task_log_write_var(struct rspamd_task *task, rspamd_fstring_t *logbuf,
- const rspamd_ftok_t *var, const rspamd_ftok_t *content)
- {
- rspamd_fstring_t *res = logbuf;
- const char *p, *c, *end;
-
- if (content == NULL) {
- /* Just output variable */
- res = rspamd_fstring_append(res, var->begin, var->len);
- }
- else {
- /* Replace $ with variable value */
- p = content->begin;
- c = p;
- end = p + content->len;
-
- while (p < end) {
- if (*p == '$') {
- if (p > c) {
- res = rspamd_fstring_append(res, c, p - c);
- }
-
- res = rspamd_fstring_append(res, var->begin, var->len);
- p++;
- c = p;
- }
- else {
- p++;
- }
- }
-
- if (p > c) {
- res = rspamd_fstring_append(res, c, p - c);
- }
- }
-
- return res;
- }
-
- static rspamd_fstring_t *
- rspamd_task_write_ialist(struct rspamd_task *task,
- GPtrArray *addrs, int lim,
- struct rspamd_log_format *lf,
- rspamd_fstring_t *logbuf)
- {
- rspamd_fstring_t *res = logbuf, *varbuf;
- rspamd_ftok_t var = {.begin = NULL, .len = 0};
- struct rspamd_email_address *addr;
- int i, nchars = 0, wr = 0, cur_chars;
- gboolean has_orig = FALSE;
- unsigned int max_log_elts = task->cfg->log_task_max_elts;
-
- if (addrs && lim <= 0) {
- lim = addrs->len;
- }
-
- PTR_ARRAY_FOREACH(addrs, i, addr)
- {
- if (addr->flags & RSPAMD_EMAIL_ADDR_ORIGINAL) {
- has_orig = TRUE;
- break;
- }
- }
-
- varbuf = rspamd_fstring_new();
-
- PTR_ARRAY_FOREACH(addrs, i, addr)
- {
- if (wr >= lim) {
- break;
- }
-
- if (has_orig) {
- /* Report merely original addresses */
- if (!(addr->flags & RSPAMD_EMAIL_ADDR_ORIGINAL)) {
- continue;
- }
- }
-
- bool last = i == lim - 1;
-
- cur_chars = addr->addr_len;
- varbuf = rspamd_fstring_append(varbuf, addr->addr,
- cur_chars);
- nchars += cur_chars;
- wr++;
-
- if (varbuf->len > 0 && !last) {
- varbuf = rspamd_fstring_append(varbuf, ",", 1);
- }
-
- if (!last && (wr >= max_log_elts || nchars >= max_log_elts * 16)) {
- varbuf = rspamd_fstring_append(varbuf, "...", 3);
- break;
- }
- }
-
- if (varbuf->len > 0) {
- var.begin = varbuf->str;
- var.len = varbuf->len;
- res = rspamd_task_log_write_var(task, logbuf,
- &var, (const rspamd_ftok_t *) lf->data);
- }
-
- rspamd_fstring_free(varbuf);
-
- return res;
- }
-
- static rspamd_fstring_t *
- rspamd_task_write_addr_list(struct rspamd_task *task,
- GPtrArray *addrs, int lim,
- struct rspamd_log_format *lf,
- rspamd_fstring_t *logbuf)
- {
- rspamd_fstring_t *res = logbuf, *varbuf;
- rspamd_ftok_t var = {.begin = NULL, .len = 0};
- struct rspamd_email_address *addr;
- unsigned int max_log_elts = task->cfg->log_task_max_elts;
- unsigned int i;
-
- if (lim <= 0) {
- lim = addrs->len;
- }
-
- varbuf = rspamd_fstring_new();
-
- for (i = 0; i < lim; i++) {
- addr = g_ptr_array_index(addrs, i);
- bool last = i == lim - 1;
-
- if (addr->addr) {
- varbuf = rspamd_fstring_append(varbuf, addr->addr, addr->addr_len);
- }
-
- if (varbuf->len > 0 && !last) {
- varbuf = rspamd_fstring_append(varbuf, ",", 1);
- }
-
- if (!last && i >= max_log_elts) {
- varbuf = rspamd_fstring_append(varbuf, "...", 3);
- break;
- }
- }
-
- if (varbuf->len > 0) {
- var.begin = varbuf->str;
- var.len = varbuf->len;
- res = rspamd_task_log_write_var(task, logbuf,
- &var, (const rspamd_ftok_t *) lf->data);
- }
-
- rspamd_fstring_free(varbuf);
-
- return res;
- }
-
- static rspamd_fstring_t *
- rspamd_task_log_variable(struct rspamd_task *task,
- struct rspamd_log_format *lf, rspamd_fstring_t *logbuf)
- {
- rspamd_fstring_t *res = logbuf;
- rspamd_ftok_t var = {.begin = NULL, .len = 0};
- static char numbuf[128];
- static const char undef[] = "undef";
-
- switch (lf->type) {
- /* String vars */
- case RSPAMD_LOG_MID:
- if (MESSAGE_FIELD_CHECK(task, message_id)) {
- var.begin = MESSAGE_FIELD(task, message_id);
- var.len = strlen(var.begin);
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_QID:
- if (task->queue_id) {
- var.begin = task->queue_id;
- var.len = strlen(var.begin);
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_USER:
- if (task->auth_user) {
- var.begin = task->auth_user;
- var.len = strlen(var.begin);
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_IP:
- if (task->from_addr && rspamd_ip_is_valid(task->from_addr)) {
- var.begin = rspamd_inet_address_to_string(task->from_addr);
- var.len = strlen(var.begin);
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- /* Numeric vars */
- case RSPAMD_LOG_LEN:
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf), "%uz",
- task->msg.len);
- var.begin = numbuf;
- break;
- case RSPAMD_LOG_DNS_REQ:
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf), "%uD",
- task->dns_requests);
- var.begin = numbuf;
- break;
- case RSPAMD_LOG_TIME_REAL:
- case RSPAMD_LOG_TIME_VIRTUAL:
- var.begin = rspamd_log_check_time(task->task_timestamp,
- task->time_real_finish,
- task->cfg->clock_res);
- var.len = strlen(var.begin);
- break;
- /* InternetAddress vars */
- case RSPAMD_LOG_SMTP_FROM:
- if (task->from_envelope) {
- var.begin = task->from_envelope->addr;
- var.len = task->from_envelope->addr_len;
- }
- break;
- case RSPAMD_LOG_MIME_FROM:
- if (MESSAGE_FIELD_CHECK(task, from_mime)) {
- return rspamd_task_write_ialist(task,
- MESSAGE_FIELD(task, from_mime),
- 1,
- lf,
- logbuf);
- }
- break;
- case RSPAMD_LOG_SMTP_RCPT:
- if (task->rcpt_envelope) {
- return rspamd_task_write_addr_list(task, task->rcpt_envelope, 1, lf,
- logbuf);
- }
- break;
- case RSPAMD_LOG_MIME_RCPT:
- if (MESSAGE_FIELD_CHECK(task, rcpt_mime)) {
- return rspamd_task_write_ialist(task,
- MESSAGE_FIELD(task, rcpt_mime),
- 1,
- lf,
- logbuf);
- }
- break;
- case RSPAMD_LOG_SMTP_RCPTS:
- if (task->rcpt_envelope) {
- return rspamd_task_write_addr_list(task, task->rcpt_envelope, -1, lf,
- logbuf);
- }
- break;
- case RSPAMD_LOG_MIME_RCPTS:
- if (MESSAGE_FIELD_CHECK(task, rcpt_mime)) {
- return rspamd_task_write_ialist(task,
- MESSAGE_FIELD(task, rcpt_mime),
- -1, /* All addresses */
- lf,
- logbuf);
- }
- break;
- case RSPAMD_LOG_DIGEST:
- if (task->message) {
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf), "%*xs",
- (int) sizeof(MESSAGE_FIELD(task, digest)),
- MESSAGE_FIELD(task, digest));
- var.begin = numbuf;
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_FILENAME:
- if (task->msg.fpath) {
- var.len = strlen(task->msg.fpath);
- var.begin = task->msg.fpath;
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_FORCED_ACTION:
- if (task->result->passthrough_result) {
- struct rspamd_passthrough_result *pr = task->result->passthrough_result;
-
- if (!isnan(pr->target_score)) {
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf),
- "%s \"%s\"; score=%.2f (set by %s)",
- pr->action->name,
- pr->message,
- pr->target_score,
- pr->module);
- }
- else {
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf),
- "%s \"%s\"; score=nan (set by %s)",
- pr->action->name,
- pr->message,
- pr->module);
- }
- var.begin = numbuf;
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_SETTINGS_ID:
- if (task->settings_elt) {
- var.begin = task->settings_elt->name;
- var.len = strlen(task->settings_elt->name);
- }
- else {
- var.begin = undef;
- var.len = sizeof(undef) - 1;
- }
- break;
- case RSPAMD_LOG_MEMPOOL_SIZE:
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf),
- "%Hz",
- rspamd_mempool_get_used_size(task->task_pool));
- var.begin = numbuf;
- break;
- case RSPAMD_LOG_MEMPOOL_WASTE:
- var.len = rspamd_snprintf(numbuf, sizeof(numbuf),
- "%Hz",
- rspamd_mempool_get_wasted_size(task->task_pool));
- var.begin = numbuf;
- break;
- default:
- var = rspamd_task_log_metric_res(task, lf);
- break;
- }
-
- if (var.len > 0) {
- res = rspamd_task_log_write_var(task, logbuf,
- &var, (const rspamd_ftok_t *) lf->data);
- }
-
- return res;
- }
-
- void rspamd_task_write_log(struct rspamd_task *task)
- {
- rspamd_fstring_t *logbuf;
- struct rspamd_log_format *lf;
- struct rspamd_task **ptask;
- const char *lua_str;
- gsize lua_str_len;
- lua_State *L;
-
- g_assert(task != NULL);
-
- if (task->cfg->log_format == NULL ||
- (task->flags & RSPAMD_TASK_FLAG_NO_LOG)) {
- msg_debug_task("skip logging due to no log flag");
- return;
- }
-
- logbuf = rspamd_fstring_sized_new(1000);
-
- DL_FOREACH(task->cfg->log_format, lf)
- {
- switch (lf->type) {
- case RSPAMD_LOG_STRING:
- logbuf = rspamd_fstring_append(logbuf, lf->data, lf->len);
- break;
- case RSPAMD_LOG_LUA:
- L = task->cfg->lua_state;
- lua_rawgeti(L, LUA_REGISTRYINDEX, GPOINTER_TO_INT(lf->data));
- ptask = lua_newuserdata(L, sizeof(*ptask));
- rspamd_lua_setclass(L, rspamd_task_classname, -1);
- *ptask = task;
-
- if (lua_pcall(L, 1, 1, 0) != 0) {
- msg_err_task("call to log function failed: %s",
- lua_tostring(L, -1));
- lua_pop(L, 1);
- }
- else {
- lua_str = lua_tolstring(L, -1, &lua_str_len);
-
- if (lua_str != NULL) {
- logbuf = rspamd_fstring_append(logbuf, lua_str, lua_str_len);
- }
- lua_pop(L, 1);
- }
- break;
- default:
- /* We have a variable in log format */
- if (lf->flags & RSPAMD_LOG_FMT_FLAG_CONDITION) {
- if (!rspamd_task_log_check_condition(task, lf)) {
- continue;
- }
- }
-
- logbuf = rspamd_task_log_variable(task, lf, logbuf);
- break;
- }
- }
-
- msg_notice_task("%V", logbuf);
-
- rspamd_fstring_free(logbuf);
- }
-
- double
- rspamd_task_get_required_score(struct rspamd_task *task, struct rspamd_scan_result *m)
- {
- if (m == NULL) {
- m = task->result;
-
- if (m == NULL) {
- return NAN;
- }
- }
-
- for (unsigned int i = m->nactions; i-- > 0;) {
- struct rspamd_action_config *action_lim = &m->actions_config[i];
-
-
- if (!isnan(action_lim->cur_limit) &&
- !(action_lim->action->flags & (RSPAMD_ACTION_NO_THRESHOLD | RSPAMD_ACTION_HAM))) {
- return m->actions_config[i].cur_limit;
- }
- }
-
- return NAN;
- }
-
- rspamd_ftok_t *
- rspamd_task_get_request_header(struct rspamd_task *task,
- const char *name)
- {
- struct rspamd_request_header_chain *ret =
- rspamd_task_get_request_header_multiple(task, name);
-
- if (ret) {
- return ret->hdr;
- }
-
- return NULL;
- }
-
- struct rspamd_request_header_chain *
- rspamd_task_get_request_header_multiple(struct rspamd_task *task,
- const char *name)
- {
- struct rspamd_request_header_chain *ret = NULL;
- rspamd_ftok_t srch;
- khiter_t k;
-
- srch.begin = (char *) name;
- srch.len = strlen(name);
-
- k = kh_get(rspamd_req_headers_hash, task->request_headers,
- &srch);
-
- if (k != kh_end(task->request_headers)) {
- ret = kh_value(task->request_headers, k);
- }
-
- return ret;
- }
-
-
- void rspamd_task_add_request_header(struct rspamd_task *task,
- rspamd_ftok_t *name, rspamd_ftok_t *value)
- {
-
- khiter_t k;
- int res;
- struct rspamd_request_header_chain *chain, *nchain;
-
- k = kh_put(rspamd_req_headers_hash, task->request_headers,
- name, &res);
-
- if (res == 0) {
- /* Existing name */
- nchain = rspamd_mempool_alloc(task->task_pool, sizeof(*nchain));
- nchain->hdr = value;
- nchain->next = NULL;
- chain = kh_value(task->request_headers, k);
-
- /* Slow but OK here */
- LL_APPEND(chain, nchain);
- }
- else {
- nchain = rspamd_mempool_alloc(task->task_pool, sizeof(*nchain));
- nchain->hdr = value;
- nchain->next = NULL;
-
- kh_value(task->request_headers, k) = nchain;
- }
- }
-
-
- void rspamd_task_profile_set(struct rspamd_task *task, const char *key,
- double value)
- {
- GHashTable *tbl;
- double *pval;
-
- if (key == NULL) {
- return;
- }
-
- tbl = rspamd_mempool_get_variable(task->task_pool, RSPAMD_MEMPOOL_PROFILE);
-
- if (tbl == NULL) {
- tbl = g_hash_table_new(rspamd_str_hash, rspamd_str_equal);
- rspamd_mempool_set_variable(task->task_pool, RSPAMD_MEMPOOL_PROFILE,
- tbl, (rspamd_mempool_destruct_t) g_hash_table_unref);
- }
-
- pval = g_hash_table_lookup(tbl, key);
-
- if (pval == NULL) {
- pval = rspamd_mempool_alloc(task->task_pool, sizeof(*pval));
- *pval = value;
- g_hash_table_insert(tbl, (void *) key, pval);
- }
- else {
- *pval = value;
- }
- }
-
- double *
- rspamd_task_profile_get(struct rspamd_task *task, const char *key)
- {
- GHashTable *tbl;
- double *pval = NULL;
-
- tbl = rspamd_mempool_get_variable(task->task_pool, RSPAMD_MEMPOOL_PROFILE);
-
- if (tbl != NULL) {
- pval = g_hash_table_lookup(tbl, key);
- }
-
- return pval;
- }
-
-
- gboolean
- rspamd_task_set_finish_time(struct rspamd_task *task)
- {
- if (isnan(task->time_real_finish)) {
- task->time_real_finish = ev_time();
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- const char *
- rspamd_task_stage_name(enum rspamd_task_stage stg)
- {
- const char *ret = "unknown stage";
-
- switch (stg) {
- case RSPAMD_TASK_STAGE_CONNECT:
- ret = "connect";
- break;
- case RSPAMD_TASK_STAGE_CONNFILTERS:
- ret = "connection_filter";
- break;
- case RSPAMD_TASK_STAGE_READ_MESSAGE:
- ret = "read_message";
- break;
- case RSPAMD_TASK_STAGE_PRE_FILTERS:
- ret = "prefilters";
- break;
- case RSPAMD_TASK_STAGE_PROCESS_MESSAGE:
- ret = "process_message";
- break;
- case RSPAMD_TASK_STAGE_FILTERS:
- ret = "filters";
- break;
- case RSPAMD_TASK_STAGE_CLASSIFIERS_PRE:
- ret = "classifiers_pre";
- break;
- case RSPAMD_TASK_STAGE_CLASSIFIERS:
- ret = "classifiers";
- break;
- case RSPAMD_TASK_STAGE_CLASSIFIERS_POST:
- ret = "classifiers_post";
- break;
- case RSPAMD_TASK_STAGE_COMPOSITES:
- ret = "composites";
- break;
- case RSPAMD_TASK_STAGE_POST_FILTERS:
- ret = "postfilters";
- break;
- case RSPAMD_TASK_STAGE_LEARN_PRE:
- ret = "learn_pre";
- break;
- case RSPAMD_TASK_STAGE_LEARN:
- ret = "learn";
- break;
- case RSPAMD_TASK_STAGE_LEARN_POST:
- ret = "learn_post";
- break;
- case RSPAMD_TASK_STAGE_COMPOSITES_POST:
- ret = "composites_post";
- break;
- case RSPAMD_TASK_STAGE_IDEMPOTENT:
- ret = "idempotent";
- break;
- case RSPAMD_TASK_STAGE_DONE:
- ret = "done";
- break;
- case RSPAMD_TASK_STAGE_REPLIED:
- ret = "replied";
- break;
- default:
- break;
- }
-
- return ret;
- }
-
- void rspamd_task_timeout(EV_P_ ev_timer *w, int revents)
- {
- struct rspamd_task *task = (struct rspamd_task *) w->data;
-
- if (!(task->processed_stages & RSPAMD_TASK_STAGE_FILTERS)) {
- ev_now_update_if_cheap(task->event_loop);
- msg_info_task("processing of task time out: %.1fs spent; %.1fs limit; "
- "forced processing",
- ev_now(task->event_loop) - task->task_timestamp,
- w->repeat);
-
- if (task->cfg->soft_reject_on_timeout) {
- struct rspamd_action *action, *soft_reject;
-
- action = rspamd_check_action_metric(task, NULL, NULL);
-
- if (action->action_type != METRIC_ACTION_REJECT) {
- soft_reject = rspamd_config_get_action_by_type(task->cfg,
- METRIC_ACTION_SOFT_REJECT);
- rspamd_add_passthrough_result(task,
- soft_reject,
- 0,
- NAN,
- "timeout processing message",
- "task timeout",
- 0, NULL);
- }
- }
-
- ev_timer_again(EV_A_ w);
- task->processed_stages |= RSPAMD_TASK_STAGE_FILTERS;
- rspamd_session_cleanup(task->s, true);
- rspamd_task_process(task, RSPAMD_TASK_PROCESS_ALL);
- rspamd_session_pending(task->s);
- }
- else {
- /* Postprocessing timeout */
- msg_info_task("post-processing of task time out: %.1f second spent; forced processing",
- ev_now(task->event_loop) - task->task_timestamp);
-
- if (task->cfg->soft_reject_on_timeout) {
- struct rspamd_action *action, *soft_reject;
-
- action = rspamd_check_action_metric(task, NULL, NULL);
-
- if (action->action_type != METRIC_ACTION_REJECT) {
- soft_reject = rspamd_config_get_action_by_type(task->cfg,
- METRIC_ACTION_SOFT_REJECT);
- rspamd_add_passthrough_result(task,
- soft_reject,
- 0,
- NAN,
- "timeout post-processing message",
- "task timeout",
- 0, NULL);
- }
- }
-
- ev_timer_stop(EV_A_ w);
- task->processed_stages |= RSPAMD_TASK_STAGE_DONE;
- rspamd_session_cleanup(task->s, true);
- rspamd_task_process(task, RSPAMD_TASK_PROCESS_ALL);
- rspamd_session_pending(task->s);
- }
- }
-
- void rspamd_worker_guard_handler(EV_P_ ev_io *w, int revents)
- {
- struct rspamd_task *task = (struct rspamd_task *) w->data;
- char fake_buf[1024];
- gssize r;
-
- r = read(w->fd, fake_buf, sizeof(fake_buf));
-
- if (r > 0) {
- msg_warn_task("received extra data after task is loaded, ignoring");
- }
- else {
- if (r == 0) {
- /*
- * Poor man approach, that might break things in case of
- * shutdown (SHUT_WR) but sockets are so bad that there's no
- * reliable way to distinguish between shutdown(SHUT_WR) and
- * close.
- */
- if (task->cmd != CMD_CHECK_V2 && task->cfg->enable_shutdown_workaround) {
- msg_info_task("workaround for shutdown enabled, please update "
- "your client, this support might be removed in future");
- shutdown(w->fd, SHUT_RD);
- ev_io_stop(task->event_loop, &task->guard_ev);
- }
- else {
- msg_err_task("the peer has closed connection unexpectedly");
- rspamd_session_destroy(task->s);
- }
- }
- else if (errno != EAGAIN) {
- msg_err_task("the peer has closed connection unexpectedly: %s",
- strerror(errno));
- rspamd_session_destroy(task->s);
- }
- else {
- return;
- }
- }
- }
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