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-rw-r--r--src/fluent-bit/plugins/in_elasticsearch/in_elasticsearch_bulk_prot.c922
1 files changed, 922 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/in_elasticsearch/in_elasticsearch_bulk_prot.c b/src/fluent-bit/plugins/in_elasticsearch/in_elasticsearch_bulk_prot.c
new file mode 100644
index 000000000..c7acfd671
--- /dev/null
+++ b/src/fluent-bit/plugins/in_elasticsearch/in_elasticsearch_bulk_prot.c
@@ -0,0 +1,922 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/* Fluent Bit
+ * ==========
+ * Copyright (C) 2015-2023 The Fluent Bit Authors
+ *
+ * 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 <fluent-bit/flb_input_plugin.h>
+#include <fluent-bit/flb_version.h>
+#include <fluent-bit/flb_error.h>
+#include <fluent-bit/flb_pack.h>
+#include <fluent-bit/flb_gzip.h>
+
+#include <monkey/monkey.h>
+#include <monkey/mk_core.h>
+
+#include "in_elasticsearch.h"
+#include "in_elasticsearch_bulk_conn.h"
+#include "in_elasticsearch_bulk_prot.h"
+
+#define HTTP_CONTENT_JSON 0
+#define HTTP_CONTENT_NDJSON 1
+
+static int send_empty_response(struct in_elasticsearch_bulk_conn *conn, int http_status)
+{
+ size_t sent;
+ flb_sds_t out;
+
+ out = flb_sds_create_size(256);
+ if (!out) {
+ return -1;
+ }
+
+ if (http_status == 200) {
+ flb_sds_printf(&out,
+ "HTTP/1.1 200 OK\r\n"
+ "Content-Type: application/json\r\n\r\n");
+ }
+
+ /* We should check this operations result */
+ flb_io_net_write(conn->connection,
+ (void *) out,
+ flb_sds_len(out),
+ &sent);
+
+ flb_sds_destroy(out);
+
+ return 0;
+}
+
+static int send_json_message_response(struct in_elasticsearch_bulk_conn *conn, int http_status, char *message)
+{
+ size_t sent;
+ int len;
+ flb_sds_t out;
+
+ out = flb_sds_create_size(256);
+ if (!out) {
+ return -1;
+ }
+
+ if (message) {
+ len = strlen(message);
+ }
+ else {
+ len = 0;
+ }
+
+ if (http_status == 200) {
+ flb_sds_printf(&out,
+ "HTTP/1.1 200 OK\r\n"
+ "Content-Type: application/json\r\n"
+ "Content-Length: %i\r\n\r\n%s",
+ len, message);
+ }
+
+ /* We should check this operations result */
+ flb_io_net_write(conn->connection,
+ (void *) out,
+ flb_sds_len(out),
+ &sent);
+
+ flb_sds_destroy(out);
+
+ return 0;
+}
+
+static int send_version_message_response(struct flb_in_elasticsearch *ctx,
+ struct in_elasticsearch_bulk_conn *conn, int http_status)
+{
+ size_t sent;
+ int len;
+ flb_sds_t out;
+ flb_sds_t resp;
+
+ out = flb_sds_create_size(256);
+ if (!out) {
+ return -1;
+ }
+ resp = flb_sds_create_size(384);
+ if (!resp) {
+ flb_sds_destroy(out);
+ return -1;
+ }
+
+ flb_sds_printf(&resp,
+ ES_VERSION_RESPONSE_TEMPLATE,
+ ctx->es_version);
+
+ len = flb_sds_len(resp);
+
+ if (http_status == 200) {
+ flb_sds_printf(&out,
+ "HTTP/1.1 200 OK\r\n"
+ "Content-Type: application/json\r\n"
+ "Content-Length: %i\r\n\r\n%s",
+ len, resp);
+ }
+
+ /* We should check this operations result */
+ flb_io_net_write(conn->connection,
+ (void *) out,
+ flb_sds_len(out),
+ &sent);
+
+ flb_sds_destroy(resp);
+ flb_sds_destroy(out);
+
+ return 0;
+}
+
+static int send_dummy_sniffer_response(struct in_elasticsearch_bulk_conn *conn, int http_status,
+ struct flb_in_elasticsearch *ctx)
+{
+ size_t sent;
+ int len;
+ flb_sds_t out;
+ flb_sds_t resp;
+ flb_sds_t hostname;
+
+ if (ctx->hostname != NULL) {
+ hostname = ctx->hostname;
+ }
+ else {
+ hostname = "localhost";
+ }
+
+ out = flb_sds_create_size(384);
+ if (!out) {
+ return -1;
+ }
+
+ resp = flb_sds_create_size(384);
+ if (!resp) {
+ flb_sds_destroy(out);
+ return -1;
+ }
+
+ flb_sds_printf(&resp,
+ ES_NODES_TEMPLATE,
+ ctx->cluster_name, ctx->node_name,
+ hostname, ctx->tcp_port, ctx->buffer_max_size);
+
+ len = flb_sds_len(resp) ;
+
+ if (http_status == 200) {
+ flb_sds_printf(&out,
+ "HTTP/1.1 200 OK\r\n"
+ "Content-Type: application/json\r\n"
+ "Content-Length: %i\r\n\r\n%s",
+ len, resp);
+ }
+
+ /* We should check this operations result */
+ flb_io_net_write(conn->connection,
+ (void *) out,
+ flb_sds_len(out),
+ &sent);
+
+ flb_sds_destroy(resp);
+ flb_sds_destroy(out);
+
+ return 0;
+}
+
+static int send_response(struct in_elasticsearch_bulk_conn *conn, int http_status, char *message)
+{
+ size_t sent;
+ int len;
+ flb_sds_t out;
+
+ out = flb_sds_create_size(256);
+ if (!out) {
+ return -1;
+ }
+
+ if (message) {
+ len = strlen(message);
+ }
+ else {
+ len = 0;
+ }
+
+ if (http_status == 200) {
+ flb_sds_printf(&out,
+ "HTTP/1.1 200 OK\r\n"
+ "Server: Fluent Bit v%s\r\n"
+ "Content-Type: application/json\r\n"
+ "Content-Length: %i\r\n\r\n%s",
+ FLB_VERSION_STR,
+ len, message);
+ }
+ else if (http_status == 400) {
+ flb_sds_printf(&out,
+ "HTTP/1.1 400 Forbidden\r\n"
+ "Server: Fluent Bit v%s\r\n"
+ "Content-Length: %i\r\n\r\n%s",
+ FLB_VERSION_STR,
+ len, message);
+ }
+
+ /* We should check this operations result */
+ flb_io_net_write(conn->connection,
+ (void *) out,
+ flb_sds_len(out),
+ &sent);
+
+ flb_sds_destroy(out);
+
+ return 0;
+}
+
+/* implements functionality to get tag from key in record */
+static flb_sds_t tag_key(struct flb_in_elasticsearch *ctx, msgpack_object *map)
+{
+ size_t map_size = map->via.map.size;
+ msgpack_object_kv *kv;
+ msgpack_object key;
+ msgpack_object val;
+ char *key_str = NULL;
+ char *val_str = NULL;
+ size_t key_str_size = 0;
+ size_t val_str_size = 0;
+ int j;
+ int check = FLB_FALSE;
+ int found = FLB_FALSE;
+ flb_sds_t tag;
+
+ kv = map->via.map.ptr;
+
+ for(j=0; j < map_size; j++) {
+ check = FLB_FALSE;
+ found = FLB_FALSE;
+ key = (kv+j)->key;
+ if (key.type == MSGPACK_OBJECT_BIN) {
+ key_str = (char *) key.via.bin.ptr;
+ key_str_size = key.via.bin.size;
+ check = FLB_TRUE;
+ }
+ if (key.type == MSGPACK_OBJECT_STR) {
+ key_str = (char *) key.via.str.ptr;
+ key_str_size = key.via.str.size;
+ check = FLB_TRUE;
+ }
+
+ if (check == FLB_TRUE) {
+ if (strncmp(ctx->tag_key, key_str, key_str_size) == 0) {
+ val = (kv+j)->val;
+ if (val.type == MSGPACK_OBJECT_BIN) {
+ val_str = (char *) val.via.bin.ptr;
+ val_str_size = val.via.str.size;
+ found = FLB_TRUE;
+ break;
+ }
+ if (val.type == MSGPACK_OBJECT_STR) {
+ val_str = (char *) val.via.str.ptr;
+ val_str_size = val.via.str.size;
+ found = FLB_TRUE;
+ break;
+ }
+ }
+ }
+ }
+
+ if (found == FLB_TRUE) {
+ tag = flb_sds_create_len(val_str, val_str_size);
+ if (!tag) {
+ flb_errno();
+ return NULL;
+ }
+ return tag;
+ }
+
+
+ flb_plg_error(ctx->ins, "Could not find tag_key %s in record", ctx->tag_key);
+ return NULL;
+}
+
+static int get_write_op(struct flb_in_elasticsearch *ctx, msgpack_object *map, flb_sds_t *out_write_op, size_t *out_key_size)
+{
+ char *op_str = NULL;
+ size_t op_str_size = 0;
+ msgpack_object_kv *kv;
+ msgpack_object key;
+ int check = FLB_FALSE;
+
+ kv = map->via.map.ptr;
+ key = kv[0].key;
+ if (key.type == MSGPACK_OBJECT_BIN) {
+ op_str = (char *) key.via.bin.ptr;
+ op_str_size = key.via.bin.size;
+ check = FLB_TRUE;
+ }
+ if (key.type == MSGPACK_OBJECT_STR) {
+ op_str = (char *) key.via.str.ptr;
+ op_str_size = key.via.str.size;
+ check = FLB_TRUE;
+ }
+
+ if (check == FLB_TRUE) {
+ *out_write_op = flb_sds_create_len(op_str, op_str_size);
+ *out_key_size = op_str_size;
+ }
+
+ return check;
+}
+
+static int status_buffer_avail(struct flb_in_elasticsearch *ctx, flb_sds_t bulk_statuses, size_t threshold)
+{
+ if (flb_sds_avail(bulk_statuses) < threshold) {
+ flb_plg_warn(ctx->ins, "left buffer for bulk status(es) is too small");
+
+ return FLB_FALSE;
+ }
+
+ return FLB_TRUE;
+}
+
+static int process_ndpack(struct flb_in_elasticsearch *ctx, flb_sds_t tag, char *buf, size_t size, flb_sds_t bulk_statuses)
+{
+ int ret;
+ size_t off = 0;
+ size_t map_copy_index;
+ msgpack_object_kv *map_copy_entry;
+ msgpack_unpacked result;
+ struct flb_time tm;
+ msgpack_object *obj;
+ flb_sds_t tag_from_record = NULL;
+ int idx = 0;
+ flb_sds_t write_op;
+ size_t op_str_size = 0;
+ int op_ret = FLB_FALSE;
+ int error_op = FLB_FALSE;
+
+ flb_time_get(&tm);
+
+ msgpack_unpacked_init(&result);
+ while (msgpack_unpack_next(&result, buf, size, &off) == MSGPACK_UNPACK_SUCCESS) {
+ if (result.data.type == MSGPACK_OBJECT_MAP) {
+ if (idx > 0 && idx % 2 == 0) {
+ flb_sds_cat(bulk_statuses, ",", 1);
+ }
+ if (status_buffer_avail(ctx, bulk_statuses, 50) == FLB_FALSE) {
+ break;
+ }
+ if (idx % 2 == 0) {
+ op_ret = get_write_op(ctx, &result.data, &write_op, &op_str_size);
+
+ if (op_ret) {
+ if (flb_sds_cmp(write_op, "index", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"index\":", 9);
+ error_op = FLB_FALSE;
+ }
+ else if (flb_sds_cmp(write_op, "create", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"create\":", 10);
+ error_op = FLB_FALSE;
+ }
+ else if (flb_sds_cmp(write_op, "update", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"update\":", 10);
+ error_op = FLB_TRUE;
+ }
+ else if (flb_sds_cmp(write_op, "delete", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"delete\":{\"status\":404,\"result\":\"not_found\"}}", 46);
+ error_op = FLB_TRUE;
+ idx += 1; /* Prepare to adjust to multiple of two
+ * in the end of the loop.
+ * Due to delete actions include only one line. */
+ flb_sds_destroy(write_op);
+
+ goto proceed;
+ }
+ else {
+ flb_sds_cat(bulk_statuses, "{\"unknown\":{\"status\":400,\"result\":\"bad_request\"}}", 49);
+ error_op = FLB_TRUE;
+
+ flb_sds_destroy(write_op);
+
+ break;
+ }
+ } else {
+ flb_sds_destroy(write_op);
+ flb_plg_error(ctx->ins, "meta information line is missing");
+ error_op = FLB_TRUE;
+
+ break;
+ }
+
+ if (error_op == FLB_FALSE) {
+ flb_log_event_encoder_reset(&ctx->log_encoder);
+
+ ret = flb_log_event_encoder_begin_record(&ctx->log_encoder);
+
+ if (ret != FLB_EVENT_ENCODER_SUCCESS) {
+ flb_sds_destroy(write_op);
+ flb_plg_error(ctx->ins, "event encoder error : %d", ret);
+ error_op = FLB_TRUE;
+
+ break;
+ }
+
+ ret = flb_log_event_encoder_set_timestamp(
+ &ctx->log_encoder,
+ &tm);
+
+ if (ret != FLB_EVENT_ENCODER_SUCCESS) {
+ flb_sds_destroy(write_op);
+ flb_plg_error(ctx->ins, "event encoder error : %d", ret);
+ error_op = FLB_TRUE;
+
+ break;
+ }
+
+ if (ret == FLB_EVENT_ENCODER_SUCCESS) {
+ ret = flb_log_event_encoder_append_body_values(
+ &ctx->log_encoder,
+ FLB_LOG_EVENT_CSTRING_VALUE((char *) ctx->meta_key),
+ FLB_LOG_EVENT_MSGPACK_OBJECT_VALUE(&result.data));
+ }
+
+ if (ret != FLB_EVENT_ENCODER_SUCCESS) {
+ flb_sds_destroy(write_op);
+ flb_plg_error(ctx->ins, "event encoder error : %d", ret);
+ error_op = FLB_TRUE;
+
+ break;
+ }
+ }
+ }
+ else if (idx % 2 == 1) {
+ if (error_op == FLB_FALSE) {
+ /* Pack body */
+
+ for (map_copy_index = 0 ;
+ map_copy_index < result.data.via.map.size &&
+ ret == FLB_EVENT_ENCODER_SUCCESS ;
+ map_copy_index++) {
+ map_copy_entry = &result.data.via.map.ptr[map_copy_index];
+
+ ret = flb_log_event_encoder_append_body_values(
+ &ctx->log_encoder,
+ FLB_LOG_EVENT_MSGPACK_OBJECT_VALUE(&map_copy_entry->key),
+ FLB_LOG_EVENT_MSGPACK_OBJECT_VALUE(&map_copy_entry->val));
+ }
+
+ if (ret != FLB_EVENT_ENCODER_SUCCESS) {
+ flb_plg_error(ctx->ins, "event encoder error : %d", ret);
+ error_op = FLB_TRUE;
+
+ break;
+ }
+
+ ret = flb_log_event_encoder_commit_record(&ctx->log_encoder);
+
+ if (ret != FLB_EVENT_ENCODER_SUCCESS) {
+ flb_plg_error(ctx->ins, "event encoder error : %d", ret);
+ error_op = FLB_TRUE;
+
+ break;
+ }
+
+ tag_from_record = NULL;
+
+ if (ctx->tag_key) {
+ obj = &result.data;
+ tag_from_record = tag_key(ctx, obj);
+ }
+
+ if (tag_from_record) {
+ flb_input_log_append(ctx->ins,
+ tag_from_record,
+ flb_sds_len(tag_from_record),
+ ctx->log_encoder.output_buffer,
+ ctx->log_encoder.output_length);
+
+ flb_sds_destroy(tag_from_record);
+ }
+ else if (tag) {
+ flb_input_log_append(ctx->ins,
+ tag,
+ flb_sds_len(tag),
+ ctx->log_encoder.output_buffer,
+ ctx->log_encoder.output_length);
+ }
+ else {
+ /* use default plugin Tag (it internal name, e.g: http.0 */
+ flb_input_log_append(ctx->ins, NULL, 0,
+ ctx->log_encoder.output_buffer,
+ ctx->log_encoder.output_length);
+ }
+
+ flb_log_event_encoder_reset(&ctx->log_encoder);
+ }
+ if (op_ret) {
+ if (flb_sds_cmp(write_op, "index", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"status\":201,\"result\":\"created\"}}", 34);
+ }
+ else if (flb_sds_cmp(write_op, "create", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"status\":201,\"result\":\"created\"}}", 34);
+ }
+ else if (flb_sds_cmp(write_op, "update", op_str_size) == 0) {
+ flb_sds_cat(bulk_statuses, "{\"status\":403,\"result\":\"forbidden\"}}", 36);
+ }
+ if (status_buffer_avail(ctx, bulk_statuses, 50) == FLB_FALSE) {
+ flb_sds_destroy(write_op);
+
+ break;
+ }
+ }
+ flb_sds_destroy(write_op);
+ }
+
+ proceed:
+ idx++;
+ }
+ else {
+ flb_plg_error(ctx->ins, "skip record from invalid type: %i",
+ result.data.type);
+ msgpack_unpacked_destroy(&result);
+ return -1;
+ }
+ }
+
+ if (idx % 2 != 0) {
+ flb_plg_warn(ctx->ins, "decode payload of Bulk API is failed");
+ msgpack_unpacked_destroy(&result);
+ if (error_op == FLB_FALSE) {
+ /* On lacking of body case in non-error case, there is no
+ * releasing memory code paths. We should proceed to do
+ * it here. */
+ flb_sds_destroy(write_op);
+ }
+
+ return -1;
+ }
+
+ msgpack_unpacked_destroy(&result);
+
+ return 0;
+}
+
+static ssize_t parse_payload_ndjson(struct flb_in_elasticsearch *ctx, flb_sds_t tag,
+ char *payload, size_t size, flb_sds_t bulk_statuses)
+{
+ int ret;
+ int out_size;
+ char *pack;
+ struct flb_pack_state pack_state;
+
+ /* Initialize packer */
+ flb_pack_state_init(&pack_state);
+
+ /* Pack JSON as msgpack */
+ ret = flb_pack_json_state(payload, size,
+ &pack, &out_size, &pack_state);
+ flb_pack_state_reset(&pack_state);
+
+ /* Handle exceptions */
+ if (ret == FLB_ERR_JSON_PART) {
+ flb_plg_warn(ctx->ins, "JSON data is incomplete, skipping");
+ return -1;
+ }
+ else if (ret == FLB_ERR_JSON_INVAL) {
+ flb_plg_warn(ctx->ins, "invalid JSON message, skipping");
+ return -1;
+ }
+ else if (ret == -1) {
+ return -1;
+ }
+
+ /* Process the packaged JSON and return the last byte used */
+ process_ndpack(ctx, tag, pack, out_size, bulk_statuses);
+ flb_free(pack);
+
+ return 0;
+}
+
+static int process_payload(struct flb_in_elasticsearch *ctx, struct in_elasticsearch_bulk_conn *conn,
+ flb_sds_t tag,
+ struct mk_http_session *session,
+ struct mk_http_request *request,
+ flb_sds_t bulk_statuses)
+{
+ int type = -1;
+ int i = 0;
+ int ret = 0;
+ struct mk_http_header *header;
+ int extra_size = -1;
+ struct mk_http_header *headers_extra;
+ int gzip_compressed = FLB_FALSE;
+ void *gz_data = NULL;
+ size_t gz_size = -1;
+
+ header = &session->parser.headers[MK_HEADER_CONTENT_TYPE];
+ if (header->key.data == NULL) {
+ send_response(conn, 400, "error: header 'Content-Type' is not set\n");
+ return -1;
+ }
+
+ if (header->val.len >= 20 &&
+ strncasecmp(header->val.data, "application/x-ndjson", 20) == 0) {
+ type = HTTP_CONTENT_NDJSON;
+ }
+
+ if (header->val.len >= 16 &&
+ strncasecmp(header->val.data, "application/json", 16) == 0) {
+ type = HTTP_CONTENT_JSON;
+ }
+
+ if (type == -1) {
+ send_response(conn, 400, "error: invalid 'Content-Type'\n");
+ return -1;
+ }
+
+ if (request->data.len <= 0) {
+ send_response(conn, 400, "error: no payload found\n");
+ return -1;
+ }
+
+ extra_size = session->parser.headers_extra_count;
+ if (extra_size > 0) {
+ for (i = 0; i < extra_size; i++) {
+ headers_extra = &session->parser.headers_extra[i];
+ if (headers_extra->key.len == 16 &&
+ strncasecmp(headers_extra->key.data, "Content-Encoding", 16) == 0) {
+ if (headers_extra->val.len == 4 &&
+ strncasecmp(headers_extra->val.data, "gzip", 4) == 0) {
+ flb_debug("[elasticsearch_bulk_prot] body is gzipped");
+ gzip_compressed = FLB_TRUE;
+ }
+ }
+ }
+ }
+
+ if (type == HTTP_CONTENT_NDJSON || type == HTTP_CONTENT_JSON) {
+ if (gzip_compressed == FLB_TRUE) {
+ ret = flb_gzip_uncompress((void *) request->data.data, request->data.len,
+ &gz_data, &gz_size);
+ if (ret == -1) {
+ flb_error("[elasticsearch_bulk_prot] gzip uncompress is failed");
+ return -1;
+ }
+ parse_payload_ndjson(ctx, tag, gz_data, gz_size, bulk_statuses);
+ flb_free(gz_data);
+ }
+ else {
+ parse_payload_ndjson(ctx, tag, request->data.data, request->data.len, bulk_statuses);
+ }
+ }
+
+ return 0;
+}
+
+static inline int mk_http_point_header(mk_ptr_t *h,
+ struct mk_http_parser *parser, int key)
+{
+ struct mk_http_header *header;
+
+ header = &parser->headers[key];
+ if (header->type == key) {
+ h->data = header->val.data;
+ h->len = header->val.len;
+ return 0;
+ }
+ else {
+ h->data = NULL;
+ h->len = -1;
+ }
+
+ return -1;
+}
+
+/*
+ * Handle an incoming request. It perform extra checks over the request, if
+ * everything is OK, it enqueue the incoming payload.
+ */
+int in_elasticsearch_bulk_prot_handle(struct flb_in_elasticsearch *ctx,
+ struct in_elasticsearch_bulk_conn *conn,
+ struct mk_http_session *session,
+ struct mk_http_request *request)
+{
+ int i;
+ int ret;
+ int len;
+ char *uri;
+ char *qs;
+ off_t diff;
+ flb_sds_t tag;
+ struct mk_http_header *header;
+ flb_sds_t bulk_statuses = NULL;
+ flb_sds_t bulk_response = NULL;
+ char *error_str = NULL;
+
+ if (request->uri.data[0] != '/') {
+ send_response(conn, 400, "error: invalid request\n");
+ return -1;
+ }
+
+ /* Decode URI */
+ uri = mk_utils_url_decode(request->uri);
+ if (!uri) {
+ uri = mk_mem_alloc_z(request->uri.len + 1);
+ if (!uri) {
+ return -1;
+ }
+ memcpy(uri, request->uri.data, request->uri.len);
+ uri[request->uri.len] = '\0';
+ }
+
+ /* Try to match a query string so we can remove it */
+ qs = strchr(uri, '?');
+ if (qs) {
+ /* remove the query string part */
+ diff = qs - uri;
+ uri[diff] = '\0';
+ }
+
+ /* Refer the tag at first*/
+ if (ctx->ins->tag && !ctx->ins->tag_default) {
+ tag = flb_sds_create(ctx->ins->tag);
+ if (tag == NULL) {
+ return -1;
+ }
+ }
+ else {
+ /* Compose the query string using the URI */
+ len = strlen(uri);
+
+ if (len == 1) {
+ tag = NULL; /* use default tag */
+ }
+ else {
+ /* New tag skipping the URI '/' */
+ tag = flb_sds_create_len(&uri[1], len - 1);
+ if (!tag) {
+ mk_mem_free(uri);
+ return -1;
+ }
+
+ /* Sanitize, only allow alphanum chars */
+ for (i = 0; i < flb_sds_len(tag); i++) {
+ if (!isalnum(tag[i]) && tag[i] != '_' && tag[i] != '.') {
+ tag[i] = '_';
+ }
+ }
+ }
+ }
+
+ /* Check if we have a Host header: Hostname ; port */
+ mk_http_point_header(&request->host, &session->parser, MK_HEADER_HOST);
+
+ /* Header: Connection */
+ mk_http_point_header(&request->connection, &session->parser,
+ MK_HEADER_CONNECTION);
+
+ /* HTTP/1.1 needs Host header */
+ if (!request->host.data && request->protocol == MK_HTTP_PROTOCOL_11) {
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+ return -1;
+ }
+
+ /* Should we close the session after this request ? */
+ mk_http_keepalive_check(session, request, ctx->server);
+
+ /* Content Length */
+ header = &session->parser.headers[MK_HEADER_CONTENT_LENGTH];
+ if (header->type == MK_HEADER_CONTENT_LENGTH) {
+ request->_content_length.data = header->val.data;
+ request->_content_length.len = header->val.len;
+ }
+ else {
+ request->_content_length.data = NULL;
+ }
+
+ if (request->method == MK_METHOD_HEAD) {
+ send_empty_response(conn, 200);
+
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+
+ return 0;
+ }
+
+ if (request->method == MK_METHOD_PUT) {
+ send_json_message_response(conn, 200, "{}");
+
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+
+ return 0;
+ }
+
+ if (request->method == MK_METHOD_GET) {
+ if (strncmp(uri, "/_nodes/http", 12) == 0) {
+ send_dummy_sniffer_response(conn, 200, ctx);
+ }
+ else if (strlen(uri) == 1 && strncmp(uri, "/", 1) == 0) {
+ send_version_message_response(ctx, conn, 200);
+ }
+ else {
+ send_json_message_response(conn, 200, "{}");
+ }
+
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+
+ return 0;
+ }
+
+ if (request->method == MK_METHOD_POST) {
+ if (strncmp(uri, "/_bulk", 6) == 0) {
+ bulk_statuses = flb_sds_create_size(ctx->buffer_max_size);
+ if (!bulk_statuses) {
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+ return -1;
+ }
+
+ bulk_response = flb_sds_create_size(ctx->buffer_max_size);
+ if (!bulk_response) {
+ flb_sds_destroy(bulk_statuses);
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+ return -1;
+ }
+ } else {
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+
+ send_response(conn, 400, "error: invaild HTTP endpoint\n");
+
+ return -1;
+ }
+ }
+
+ if (request->method != MK_METHOD_POST &&
+ request->method != MK_METHOD_GET &&
+ request->method != MK_METHOD_HEAD &&
+ request->method != MK_METHOD_PUT) {
+
+ if (bulk_statuses) {
+ flb_sds_destroy(bulk_statuses);
+ }
+ if (bulk_response) {
+ flb_sds_destroy(bulk_response);
+ }
+
+ flb_sds_destroy(tag);
+ mk_mem_free(uri);
+
+ send_response(conn, 400, "error: invalid HTTP method\n");
+ return -1;
+ }
+
+ ret = process_payload(ctx, conn, tag, session, request, bulk_statuses);
+ flb_sds_destroy(tag);
+
+ len = flb_sds_len(bulk_statuses);
+ if (flb_sds_alloc(bulk_response) < len + 27) {
+ bulk_response = flb_sds_increase(bulk_response, len + 27 - flb_sds_alloc(bulk_response));
+ }
+ error_str = strstr(bulk_statuses, "\"status\":40");
+ if (error_str){
+ flb_sds_cat(bulk_response, "{\"errors\":true,\"items\":[", 24);
+ }
+ else {
+ flb_sds_cat(bulk_response, "{\"errors\":false,\"items\":[", 25);
+ }
+ flb_sds_cat(bulk_response, bulk_statuses, flb_sds_len(bulk_statuses));
+ flb_sds_cat(bulk_response, "]}", 2);
+ send_response(conn, 200, bulk_response);
+
+ mk_mem_free(uri);
+ flb_sds_destroy(bulk_statuses);
+ flb_sds_destroy(bulk_response);
+
+ return ret;
+}
+
+/*
+ * Handle an incoming request which has resulted in an http parser error.
+ */
+int in_elasticsearch_bulk_prot_handle_error(struct flb_in_elasticsearch *ctx,
+ struct in_elasticsearch_bulk_conn *conn,
+ struct mk_http_session *session,
+ struct mk_http_request *request)
+{
+ send_response(conn, 400, "error: invalid request\n");
+ return -1;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-08 17:20:07 +0000