1 files changed, 0 insertions, 370 deletions
diff --git a/aclk/legacy/mqtt.c b/aclk/legacy/mqtt.c
deleted file mode 100644
index 0e4bb2ec9..000000000
--- a/aclk/legacy/mqtt.c
+++ /dev/null
@@ -1,370 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <libnetdata/json/json.h>
-#include "daemon/common.h"
-#include "mqtt.h"
-#include "aclk_lws_wss_client.h"
-#include "aclk_stats.h"
-#include "aclk_rx_msgs.h"
-
-#include "agent_cloud_link.h"
-
-#define ACLK_QOS 1
-
-extern usec_t aclk_session_us;
-extern time_t aclk_session_sec;
-
-inline const char *_link_strerror(int rc)
-{
-    return mosquitto_strerror(rc);
-}
-
-#ifdef NETDATA_INTERNAL_CHECKS
-static struct timeval sendTimes[1024];
-#endif
-
-static struct mosquitto *mosq = NULL;
-
-
-void mqtt_message_callback(struct mosquitto *mosq, void *obj, const struct mosquitto_message *msg)
-{
-    UNUSED(mosq);
-    UNUSED(obj);
-
-    legacy_aclk_handle_cloud_message(msg->payload);
-}
-
-void publish_callback(struct mosquitto *mosq, void *obj, int rc)
-{
-    UNUSED(mosq);
-    UNUSED(obj);
-    UNUSED(rc);
-#ifdef NETDATA_INTERNAL_CHECKS
-    struct timeval now, *orig;
-    now_realtime_timeval(&now);
-    orig = &sendTimes[ rc & 0x3ff ];
-    int64_t diff = (now.tv_sec - orig->tv_sec) * USEC_PER_SEC + (now.tv_usec - orig->tv_usec);
-    diff /= 1000;
-
-    info("Publish_callback: mid=%d latency=%" PRId64 "ms", rc, diff);
-
-    legacy_aclk_metric_mat_update(&legacy_aclk_metrics_per_sample.latency, diff);
-#endif
-    return;
-}
-
-void connect_callback(struct mosquitto *mosq, void *obj, int rc)
-{
-    UNUSED(mosq);
-    UNUSED(obj);
-    UNUSED(rc);
-
-    info("Connection to cloud established");
-    aclk_connect();
-
-    return;
-}
-
-void disconnect_callback(struct mosquitto *mosq, void *obj, int rc)
-{
-    UNUSED(mosq);
-    UNUSED(obj);
-    UNUSED(rc);
-
-    if (netdata_exit)
-        info("Connection to cloud terminated due to agent shutdown");
-    else {
-        errno = 0;
-        error("Connection to cloud failed");
-    }
-    aclk_disconnect();
-
-    aclk_lws_wss_mqtt_layer_disconnect_notif();
-
-    return;
-}
-
-void _show_mqtt_info()
-{
-    int libmosq_major, libmosq_minor, libmosq_revision, libmosq_version;
-    libmosq_version = mosquitto_lib_version(&libmosq_major, &libmosq_minor, &libmosq_revision);
-
-    info(
-        "Detected libmosquitto library version %d, %d.%d.%d", libmosq_version, libmosq_major, libmosq_minor,
-        libmosq_revision);
-}
-
-size_t _mqtt_external_write_hook(void *buf, size_t count)
-{
-    return aclk_lws_wss_client_write(buf, count);
-}
-
-size_t _mqtt_external_read_hook(void *buf, size_t count)
-{
-    return aclk_lws_wss_client_read(buf, count);
-}
-
-int _mqtt_lib_init()
-{
-    int rc;
-    //int libmosq_major, libmosq_minor, libmosq_revision, libmosq_version;
-    /* Commenting out now as it is unused - do not delete, this is needed for the on-prem version.
-    char *ca_crt;
-    char *server_crt;
-    char *server_key;
-
-    // show library info so can have it in the logfile
-    //libmosq_version = mosquitto_lib_version(&libmosq_major, &libmosq_minor, &libmosq_revision);
-    ca_crt = config_get(CONFIG_SECTION_CLOUD, "link cert", "*");
-    server_crt = config_get(CONFIG_SECTION_CLOUD, "link server cert", "*");
-    server_key = config_get(CONFIG_SECTION_CLOUD, "link server key", "*");
-
-    if (ca_crt[0] == '*') {
-        freez(ca_crt);
-        ca_crt = NULL;
-    }
-
-    if (server_crt[0] == '*') {
-        freez(server_crt);
-        server_crt = NULL;
-    }
-
-    if (server_key[0] == '*') {
-        freez(server_key);
-        server_key = NULL;
-    }
-    */
-
-    //    info(
-    //        "Detected libmosquitto library version %d, %d.%d.%d", libmosq_version, libmosq_major, libmosq_minor,
-    //        libmosq_revision);
-
-    rc = mosquitto_lib_init();
-    if (unlikely(rc != MOSQ_ERR_SUCCESS)) {
-        error("Failed to initialize MQTT (libmosquitto library)");
-        return 1;
-    }
-    return 0;
-}
-
-static int _mqtt_create_connection(char *username, char *password)
-{
-    if (mosq != NULL)
-        mosquitto_destroy(mosq);
-    mosq = mosquitto_new(username, true, NULL);
-    if (unlikely(!mosq)) {
-        mosquitto_lib_cleanup();
-        error("MQTT new structure  -- %s", mosquitto_strerror(errno));
-        return MOSQ_ERR_UNKNOWN;
-    }
-
-    // Record the session start time to allow a nominal LWT timestamp
-    usec_t now = now_realtime_usec();
-    aclk_session_sec = now / USEC_PER_SEC;
-    aclk_session_us = now % USEC_PER_SEC;  
-
-    _link_set_lwt("outbound/meta", 2);
-
-    mosquitto_connect_callback_set(mosq, connect_callback);
-    mosquitto_disconnect_callback_set(mosq, disconnect_callback);
-    mosquitto_publish_callback_set(mosq, publish_callback);
-
-    info("Using challenge-response: %s / %s", username, password);
-    mosquitto_username_pw_set(mosq, username, password);
-
-    int rc = mosquitto_threaded_set(mosq, 1);
-    if (unlikely(rc != MOSQ_ERR_SUCCESS))
-        error("Failed to tune the thread model for libmosquitto (%s)", mosquitto_strerror(rc));
-
-#if defined(LIBMOSQUITTO_VERSION_NUMBER) >= 1006000
-    rc = mosquitto_int_option(mosq, MQTT_PROTOCOL_V311, 0);
-    if (unlikely(rc != MOSQ_ERR_SUCCESS))
-        error("MQTT protocol specification rc = %d (%s)", rc, mosquitto_strerror(rc));
-
-    rc = mosquitto_int_option(mosq, MOSQ_OPT_SEND_MAXIMUM, 1);
-    info("MQTT in flight messages set to 1  -- %s", mosquitto_strerror(rc));
-#endif
-
-    return rc;
-}
-
-static int _link_mqtt_connect(char *aclk_hostname, int aclk_port)
-{
-    int rc;
-
-    rc = mosquitto_connect_async(mosq, aclk_hostname, aclk_port, ACLK_PING_INTERVAL);
-
-    if (unlikely(rc != MOSQ_ERR_SUCCESS))
-        error(
-            "Failed to establish link to [%s:%d] MQTT status = %d (%s)", aclk_hostname, aclk_port, rc,
-            mosquitto_strerror(rc));
-    else
-        info("Establishing MQTT link to [%s:%d]", aclk_hostname, aclk_port);
-
-    return rc;
-}
-
-static inline void _link_mosquitto_write()
-{
-    int rc;
-
-    if (unlikely(!mosq)) {
-        return;
-    }
-
-    rc = mosquitto_loop_misc(mosq);
-    if (unlikely(rc != MOSQ_ERR_SUCCESS))
-        debug(D_ACLK, "ACLK: failure during mosquitto_loop_misc %s", mosquitto_strerror(rc));
-
-    if (likely(mosquitto_want_write(mosq))) {
-        rc = mosquitto_loop_write(mosq, 1);
-        if (rc != MOSQ_ERR_SUCCESS)
-            debug(D_ACLK, "ACLK: failure during mosquitto_loop_write %s", mosquitto_strerror(rc));
-    }
-}
-
-void aclk_lws_connection_established(char *hostname, int port)
-{
-    _link_mqtt_connect(hostname, port);  // Parameters only used for logging, lower layer connected.
-    _link_mosquitto_write();
-}
-
-void aclk_lws_connection_data_received()
-{
-    int rc = mosquitto_loop_read(mosq, 1);
-    if (rc != MOSQ_ERR_SUCCESS)
-        debug(D_ACLK, "ACLK: failure during mosquitto_loop_read %s", mosquitto_strerror(rc));
-}
-
-void aclk_lws_connection_closed()
-{
-    aclk_disconnect();
-
-}
-
-
-int mqtt_attempt_connection(char *aclk_hostname, int aclk_port, char *username, char *password)
-{
-    if(aclk_lws_wss_connect(aclk_hostname, aclk_port))
-        return MOSQ_ERR_UNKNOWN;
-    aclk_lws_wss_service_loop();
-
-    int rc = _mqtt_create_connection(username, password);
-    if (rc!= MOSQ_ERR_SUCCESS)
-        return rc;
-
-    mosquitto_external_callbacks_set(mosq, _mqtt_external_write_hook, _mqtt_external_read_hook);
-    return rc;
-}
-
-inline int _link_event_loop()
-{
-
-    // TODO: Check if we need to flush undelivered messages from libmosquitto on new connection attempts (QoS=1).
-    _link_mosquitto_write();
-    aclk_lws_wss_service_loop();
-
-    // this is because if use LWS we don't want
-    // mqtt to reconnect by itself
-    return MOSQ_ERR_SUCCESS;
-}
-
-void _link_shutdown()
-{
-    int rc;
-
-    if (likely(!mosq))
-        return;
-
-    rc = mosquitto_disconnect(mosq);
-    switch (rc) {
-        case MOSQ_ERR_SUCCESS:
-            info("MQTT disconnected from broker");
-            break;
-        default:
-            info("MQTT invalid structure");
-            break;
-    };
-}
-
-
-int _link_set_lwt(char *sub_topic, int qos)
-{
-    int rc;
-    char topic[ACLK_MAX_TOPIC + 1];
-    char *final_topic;
-
-    final_topic = get_topic(sub_topic, topic, ACLK_MAX_TOPIC);
-    if (unlikely(!final_topic)) {
-        errno = 0;
-        error("Unable to build outgoing topic; truncated?");
-        return 1;
-    }
-
-    usec_t lwt_time = aclk_session_sec * USEC_PER_SEC + aclk_session_us + 1;
-    BUFFER *b = buffer_create(512);
-    aclk_create_header(b, "disconnect", NULL, lwt_time / USEC_PER_SEC, lwt_time % USEC_PER_SEC, ACLK_VERSION_NEG_VERSION);
-    buffer_strcat(b, ", \"payload\": \"unexpected\" }");
-    rc = mosquitto_will_set(mosq, topic, buffer_strlen(b), buffer_tostring(b), qos, 0);
-    buffer_free(b);
-
-    return rc;
-}
-
-int _link_subscribe(char *topic, int qos)
-{
-    int rc;
-
-    if (unlikely(!mosq))
-        return 1;
-
-    mosquitto_message_callback_set(mosq, mqtt_message_callback);
-
-    rc = mosquitto_subscribe(mosq, NULL, topic, qos);
-    if (unlikely(rc)) {
-        errno = 0;
-        error("Failed to register subscription %d (%s)", rc, mosquitto_strerror(rc));
-        return 1;
-    }
-
-    _link_mosquitto_write();
-    return 0;
-}
-
-/*
- * Send a message to the cloud to specific topic
- *
- */
-
-int _link_send_message(char *topic, const void *message, size_t len, int *mid)
-{
-    int rc;
-    size_t write_q, write_q_bytes, read_q;
-
-    rc = mosquitto_pub_topic_check(topic);
-
-    if (unlikely(rc != MOSQ_ERR_SUCCESS))
-        return rc;
-
-    lws_wss_check_queues(&write_q, &write_q_bytes, &read_q);
-    rc = mosquitto_publish(mosq, mid, topic, len, message, ACLK_QOS, 0);
-
-#ifdef NETDATA_INTERNAL_CHECKS
-    char msg_head[64];
-    memset(msg_head, 0, sizeof(msg_head));
-    strncpy(msg_head, (char*)message, 60);
-    for (size_t i = 0; i < sizeof(msg_head); i++)
-        if(msg_head[i] == '\n') msg_head[i] = ' ';
-    info("Sending MQTT len=%d mid=%d wq=%zu (%zu-bytes) readq=%zu: %s", (int)len,
-         *mid, write_q, write_q_bytes, read_q, msg_head);
-    now_realtime_timeval(&sendTimes[ *mid & 0x3ff ]);
-#endif
-
-    // TODO: Add better handling -- error will flood the logfile here
-    if (unlikely(rc != MOSQ_ERR_SUCCESS)) {
-        errno = 0;
-        error("MQTT message failed : %s", mosquitto_strerror(rc));
-    }
-    _link_mosquitto_write();
-    return rc;
-}