Roger Light
5 years ago
committed by
GitHub
commit
dcb9ac93c7
@ -0,0 +1,11 @@
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include_directories(${mosquitto_SOURCE_DIR} ${mosquitto_SOURCE_DIR}/include
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${STDBOOL_H_PATH} ${STDINT_H_PATH})
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add_library(mosquitto_message_timestamp SHARED mosquitto_message_timestamp.c)
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set_target_properties(mosquitto_message_timestamp PROPERTIES
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POSITION_INDEPENDENT_CODE 1
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)
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set_target_properties(mosquitto_message_timestamp PROPERTIES PREFIX "")
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# Don't install, these are example plugins only.
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#install(TARGETS mosquitto_message_timestamp RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
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include ../../config.mk
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.PHONY : all binary check clean reallyclean test install uninstall
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PLUGIN_NAME=add_properties
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all : binary
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binary : ${PLUGIN_NAME}.so
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${PLUGIN_NAME}.so : ${PLUGIN_NAME}.c
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$(CROSS_COMPILE)$(CC) $(PLUGIN_CPPFLAGS) $(PLUGIN_CFLAGS) $(PLUGIN_LDFLAGS) -fPIC -shared $< -o $@
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reallyclean : clean
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clean:
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-rm -f *.o ${PLUGIN_NAME}.so *.gcda *.gcno
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check: test
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test:
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install: ${PLUGIN_NAME}.so
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# Don't install, these are examples only.
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#$(INSTALL) -d "${DESTDIR}$(libdir)"
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#$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
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uninstall :
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-rm -f "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
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@ -0,0 +1,120 @@
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/*
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Copyright (c) 2020 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License 2.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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https://www.eclipse.org/legal/epl-2.0/
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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Contributors:
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Roger Light - initial implementation and documentation.
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Simon Christmann - use timestamp in unix epoch milliseconds; add client properties
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*/
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/*
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* Adds MQTT v5 user-properties to incoming messages:
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* - $timestamp: unix epoch in milliseconds
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* - $client_id: client id of the publishing client
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* - $client_username: username that the publishing client used to authenticate
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*
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* Compile with:
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* gcc -I<path to mosquitto-repo/include> -fPIC -shared add_properties.c -o add_properties.so
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*
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* Use in config with:
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*
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* plugin /path/to/add_properties.so
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*
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* Note that this only works on Mosquitto 2.0 or later.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <time.h>
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#include "mosquitto_broker.h"
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#include "mosquitto_plugin.h"
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#include "mosquitto.h"
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#include "mqtt_protocol.h"
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#define TS_BUF_LEN (14+1) // 14 characters in unix epoch (ms) is ≈16 Nov 5138
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static mosquitto_plugin_id_t *mosq_pid = NULL;
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static int callback_message(int event, void *event_data, void *userdata)
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{
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struct mosquitto_evt_message *ed = event_data;
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UNUSED(event);
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UNUSED(userdata);
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int result;
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// Add timestamp in unix epoch (ms)
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struct timespec ts;
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char ts_buf[TS_BUF_LEN];
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clock_gettime(CLOCK_REALTIME, &ts);
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snprintf(ts_buf, TS_BUF_LEN, "%li%03lu", ts.tv_sec, ts.tv_nsec / 1000 / 1000);
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result = mosquitto_property_add_string_pair(
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&ed->properties,
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MQTT_PROP_USER_PROPERTY,
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"$timestamp",
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ts_buf);
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if (result != MOSQ_ERR_SUCCESS) return result;
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// Add client id
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result = mosquitto_property_add_string_pair(
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&ed->properties,
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MQTT_PROP_USER_PROPERTY,
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"$client_id",
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mosquitto_client_id(ed->client));
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if (result != MOSQ_ERR_SUCCESS) return result;
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// Add client username
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result = mosquitto_property_add_string_pair(
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&ed->properties,
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MQTT_PROP_USER_PROPERTY,
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"$client_username",
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mosquitto_client_username(ed->client));
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if (result != MOSQ_ERR_SUCCESS) return result;
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// If no return occurred up to this point, we were successful
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return MOSQ_ERR_SUCCESS;
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}
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int mosquitto_plugin_version(int supported_version_count, const int *supported_versions)
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{
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int i;
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for(i=0; i<supported_version_count; i++){
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if(supported_versions[i] == 5){
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return 5;
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}
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}
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return -1;
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}
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int mosquitto_plugin_init(mosquitto_plugin_id_t *identifier, void **user_data, struct mosquitto_opt *opts, int opt_count)
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{
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UNUSED(user_data);
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UNUSED(opts);
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UNUSED(opt_count);
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mosq_pid = identifier;
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return mosquitto_callback_register(mosq_pid, MOSQ_EVT_MESSAGE, callback_message, NULL, NULL);
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}
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int mosquitto_plugin_cleanup(void *user_data, struct mosquitto_opt *opts, int opt_count)
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{
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UNUSED(user_data);
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UNUSED(opts);
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UNUSED(opt_count);
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return mosquitto_callback_unregister(mosq_pid, MOSQ_EVT_MESSAGE, callback_message, NULL);
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}
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@ -0,0 +1,15 @@
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include_directories(${mosquitto_SOURCE_DIR} ${mosquitto_SOURCE_DIR}/include
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${STDBOOL_H_PATH} ${STDINT_H_PATH})
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link_directories(${mosquitto_SOURCE_DIR})
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add_library(mosquitto_payload_modification SHARED mosquitto_payload_modification.c)
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set_target_properties(mosquitto_payload_modification PROPERTIES
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POSITION_INDEPENDENT_CODE 1
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)
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set_target_properties(mosquitto_payload_modification PROPERTIES PREFIX "")
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if(WIN32)
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target_link_libraries(mosquitto_payload_modification mosquitto)
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endif(WIN32)
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# Don't install, these are example plugins only.
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#install(TARGETS mosquitto_payload_modification RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
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@ -0,0 +1,27 @@
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include ../../config.mk
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.PHONY : all binary check clean reallyclean test install uninstall
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PLUGIN_NAME=printf_example
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all : binary
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binary : ${PLUGIN_NAME}.so
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${PLUGIN_NAME}.so : ${PLUGIN_NAME}.c
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$(CROSS_COMPILE)$(CC) $(PLUGIN_CPPFLAGS) $(PLUGIN_CFLAGS) $(PLUGIN_LDFLAGS) -fPIC -shared $< -o $@
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reallyclean : clean
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clean:
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-rm -f *.o ${PLUGIN_NAME}.so *.gcda *.gcno
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check: test
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test:
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install: ${PLUGIN_NAME}.so
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# Don't install, these are examples only.
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#$(INSTALL) -d "${DESTDIR}$(libdir)"
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#$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
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uninstall :
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-rm -f "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
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@ -0,0 +1,70 @@
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/*
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* This is an *example* plugin which prints information of a message after it is
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* received by the broker and before it is sent on to other clients.
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*
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* Compile with:
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* gcc -I<path to mosquitto-repo/include> -fPIC -shared printf_example.c -o printf_example.so
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*
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* Use in config with:
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*
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* plugin /path/to/printf_example.so
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*
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* Note that this only works on Mosquitto 2.0 or later.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "mosquitto_broker.h"
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#include "mosquitto_plugin.h"
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#include "mosquitto.h"
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#include "mqtt_protocol.h"
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#define UNUSED(A) (void)(A)
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static mosquitto_plugin_id_t *mosq_pid = NULL;
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static int callback_message(int event, void *event_data, void *userdata)
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{
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struct mosquitto_evt_message *ed = event_data;
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UNUSED(event);
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UNUSED(userdata);
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printf("printf-example - client address: %s\n", mosquitto_client_address(ed->client));
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printf("printf-example - client id: %s\n", mosquitto_client_id(ed->client));
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printf("printf-example - client username: %s\n", mosquitto_client_username(ed->client));
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printf("printf-example - payload: '%.*s'\n", ed->payloadlen, (char *)ed->payload);
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return MOSQ_ERR_SUCCESS;
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}
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int mosquitto_plugin_version(int supported_version_count, const int *supported_versions)
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{
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int i;
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for(i=0; i<supported_version_count; i++){
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if(supported_versions[i] == 5){
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return 5;
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}
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}
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return -1;
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}
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int mosquitto_plugin_init(mosquitto_plugin_id_t *identifier, void **user_data, struct mosquitto_opt *opts, int opt_count)
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{
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UNUSED(user_data);
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UNUSED(opts);
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UNUSED(opt_count);
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mosq_pid = identifier;
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return mosquitto_callback_register(mosq_pid, MOSQ_EVT_MESSAGE, callback_message, NULL, NULL);
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}
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int mosquitto_plugin_cleanup(void *user_data, struct mosquitto_opt *opts, int opt_count)
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{
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UNUSED(user_data);
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UNUSED(opts);
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UNUSED(opt_count);
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return mosquitto_callback_unregister(mosq_pid, MOSQ_EVT_MESSAGE, callback_message, NULL);
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}
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