[Feature] Add mime tool to explore messages

2 files changed, 160 insertions, 1 deletions

diff --git a/utils/CMakeLists.txt b/utils/CMakeLists.txt
index fbfaa4a09..81430d1e7 100644
--- a/utils/CMakeLists.txt
+++ b/utils/CMakeLists.txt
@@ -3,7 +3,7 @@ SET(UTILBENCHSRC rspamd_http_bench.c)
 SET(RECVBENCHSRC received_parser_bench.c)
 SET(CTYPEBENCHSRC content_type_bench.c)
 SET(BASE64SRC base64.c)
-
+SET(MIMESRC mime_tool.c)
 
 MACRO(ADD_UTIL NAME)
 	ADD_EXECUTABLE("${NAME}" "${ARGN}")
@@ -27,6 +27,7 @@ ADD_UTIL(rspamd-http-bench ${UTILBENCHSRC})
 ADD_UTIL(rspamd-received-bench ${RECVBENCHSRC})
 ADD_UTIL(rspamd-ctype-bench ${CTYPEBENCHSRC})
 ADD_UTIL(rspamd-base64 ${BASE64SRC})
+ADD_UTIL(rspamd-mime-tool ${MIMESRC})
 
 # Redirector
 IF (ENABLE_REDIRECTOR MATCHES "ON")
diff --git a/utils/mime_tool.c b/utils/mime_tool.c
new file mode 100644
index 000000000..bc7cda2e4
--- /dev/null
+++ b/utils/mime_tool.c
@@ -0,0 +1,158 @@
+/*-
+ * 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 "printf.h"
+#include "message.h"
+#include "util.h"
+#include "content_type.h"
+#include "task.h"
+#include "mime_parser.h"
+#include "unix-std.h"
+
+
+static void
+rspamd_show_normal (struct rspamd_mime_part *part)
+{
+	rspamd_printf ("got normal part %p: parent: %p, type: %T/%T,"
+			"length: %z (%z raw)\n",
+			part, part->parent_part,
+			&part->ct->type, &part->ct->subtype,
+			part->parsed_data.len,
+			part->raw_data.len);
+}
+
+static void
+rspamd_show_multipart (struct rspamd_mime_part *part)
+{
+	struct rspamd_mime_part *cur;
+	guint i;
+
+	rspamd_printf ("got multipart part %p: parent: %p, type: %T/%T, children: [",
+			part, part->parent_part,
+			&part->ct->type, &part->ct->subtype);
+
+	if (part->children) {
+		for (i = 0; i < part->children->len; i ++) {
+			cur = g_ptr_array_index (part->children, i);
+
+			if (i != 0) {
+				rspamd_printf (", %p{%T/%T}", cur,
+						&cur->ct->type, &cur->ct->subtype);
+			}
+			else {
+				rspamd_printf ("%p{%T/%T}", cur,
+						&cur->ct->type, &cur->ct->subtype);
+			}
+		}
+	}
+
+	rspamd_printf ("]\n");
+}
+
+static void
+rspamd_show_message (struct rspamd_mime_part *part)
+{
+	rspamd_printf ("got message part %p: parent: %p, type: %T/%T",
+				part, part->parent_part);
+}
+
+static void
+rspamd_process_file (struct rspamd_config *cfg, const gchar *fname, gint mode)
+{
+	struct rspamd_task *task;
+	gint fd;
+	gpointer map;
+	struct stat st;
+	GError *err = NULL;
+	struct rspamd_mime_part *part;
+	guint i;
+
+	fd = open (fname, O_RDONLY);
+
+	if (fd == -1) {
+		rspamd_fprintf (stderr, "cannot open %s: %s\n", fname, strerror (errno));
+		exit (EXIT_FAILURE);
+	}
+
+	if (fstat (fd, &st) == -1) {
+		rspamd_fprintf (stderr, "cannot stat %s: %s\n", fname, strerror (errno));
+		exit (EXIT_FAILURE);
+	}
+
+	map = mmap (NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+	close (fd);
+
+	if (map == MAP_FAILED) {
+		rspamd_fprintf (stderr, "cannot mmap %s: %s\n", fname, strerror (errno));
+		exit (EXIT_FAILURE);
+	}
+
+	task = rspamd_task_new (NULL, cfg);
+	task->msg.begin = map;
+	task->msg.len = st.st_size;
+
+	if (!rspamd_mime_parse_task (task, &err)) {
+		rspamd_fprintf (stderr, "cannot parse %s: %e\n", fname, err);
+		g_error_free (err);
+	}
+
+	for (i = 0; i < task->parts->len; i ++) {
+		part = g_ptr_array_index (task->parts, i);
+
+		if (part->ct->flags & RSPAMD_CONTENT_TYPE_MULTIPART) {
+			rspamd_show_multipart (part);
+		}
+		else if (part->ct->flags & RSPAMD_CONTENT_TYPE_MESSAGE) {
+			rspamd_show_message (part);
+		}
+		else {
+			rspamd_show_normal (part);
+		}
+	}
+
+	rspamd_task_free (task);
+	munmap (map, st.st_size);
+}
+
+int
+main (int argc, char **argv)
+{
+	gint i, start = 1;
+	struct rspamd_config *cfg;
+	rspamd_logger_t *logger = NULL;
+
+	cfg = rspamd_config_new ();
+	cfg->libs_ctx = rspamd_init_libs ();
+	cfg->log_type = RSPAMD_LOG_CONSOLE;
+	rspamd_set_logger (cfg, g_quark_from_static_string ("mime"), &logger, NULL);
+	(void) rspamd_log_open (logger);
+	g_log_set_default_handler (rspamd_glib_log_function, logger);
+	g_set_printerr_handler (rspamd_glib_printerr_function);
+	rspamd_config_post_load (cfg,
+			RSPAMD_CONFIG_INIT_LIBS|RSPAMD_CONFIG_INIT_URL|RSPAMD_CONFIG_INIT_NO_TLD);
+
+	for (i = start; i < argc; i ++) {
+		if (argv[i]) {
+			rspamd_process_file (cfg, argv[i], 0);
+		}
+	}
+
+	rspamd_log_close (logger);
+	REF_RELEASE (cfg);
+
+	return 0;
+}