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MQTT: support for properties feature added

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This commit is contained in:
robert
2023-04-23 16:35:50 +03:00
parent 44bf059b2f
commit 6c13df1aff
13 changed files with 1740 additions and 1341 deletions
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mongoose.h
+95 -8
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@@ -1414,19 +1414,102 @@ int64_t mg_sntp_parse(const unsigned char *buf, size_t len);
#define MQTT_CMD_DISCONNECT 14
#define MQTT_CMD_AUTH 15
#define MQTT_PROP_PAYLOAD_FORMAT_INDICATOR 0x01
#define MQTT_PROP_MESSAGE_EXPIRY_INTERVAL 0x02
#define MQTT_PROP_CONTENT_TYPE 0x03
#define MQTT_PROP_RESPONSE_TOPIC 0x08
#define MQTT_PROP_CORRELATION_DATA 0x09
#define MQTT_PROP_SUBSCRIPTION_IDENTIFIER 0x0B
#define MQTT_PROP_SESSION_EXPIRY_INTERVAL 0x11
#define MQTT_PROP_ASSIGNED_CLIENT_IDENTIFIER 0x12
#define MQTT_PROP_SERVER_KEEP_ALIVE 0x13
#define MQTT_PROP_AUTHENTICATION_METHOD 0x15
#define MQTT_PROP_AUTHENTICATION_DATA 0x16
#define MQTT_PROP_REQUEST_PROBLEM_INFORMATION 0x17
#define MQTT_PROP_WILL_DELAY_INTERVAL 0x18
#define MQTT_PROP_REQUEST_RESPONSE_INFORMATION 0x19
#define MQTT_PROP_RESPONSE_INFORMATION 0x1A
#define MQTT_PROP_SERVER_REFERENCE 0x1C
#define MQTT_PROP_REASON_STRING 0x1F
#define MQTT_PROP_RECEIVE_MAXIMUM 0x21
#define MQTT_PROP_TOPIC_ALIAS_MAXIMUM 0x22
#define MQTT_PROP_TOPIC_ALIAS 0x23
#define MQTT_PROP_MAXIMUM_QOS 0x24
#define MQTT_PROP_RETAIN_AVAILABLE 0x25
#define MQTT_PROP_USER_PROPERTY 0x26
#define MQTT_PROP_MAXIMUM_PACKET_SIZE 0x27
#define MQTT_PROP_WILDCARD_SUBSCRIPTION_AVAILABLE 0x28
#define MQTT_PROP_SUBSCRIPTION_IDENTIFIER_AVAILABLE 0x29
#define MQTT_PROP_SHARED_SUBSCRIPTION_AVAILABLE 0x2A
enum {
MQTT_PROP_TYPE_BYTE,
MQTT_PROP_TYPE_STRING,
MQTT_PROP_TYPE_STRING_PAIR,
MQTT_PROP_TYPE_BINARY_DATA,
MQTT_PROP_TYPE_VARIABLE_INT,
MQTT_PROP_TYPE_INT,
MQTT_PROP_TYPE_SHORT
};
enum { MQTT_OK, MQTT_INCOMPLETE, MQTT_MALFORMED };
struct mqtt_prop_map_t {
uint8_t id;
uint8_t type;
};
static const struct mqtt_prop_map_t mqtt_prop_map[] = {
{MQTT_PROP_PAYLOAD_FORMAT_INDICATOR, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_MESSAGE_EXPIRY_INTERVAL, MQTT_PROP_TYPE_INT},
{MQTT_PROP_CONTENT_TYPE, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_RESPONSE_TOPIC, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_CORRELATION_DATA, MQTT_PROP_TYPE_BINARY_DATA},
{MQTT_PROP_SUBSCRIPTION_IDENTIFIER, MQTT_PROP_TYPE_VARIABLE_INT},
{MQTT_PROP_SESSION_EXPIRY_INTERVAL, MQTT_PROP_TYPE_INT},
{MQTT_PROP_ASSIGNED_CLIENT_IDENTIFIER, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_SERVER_KEEP_ALIVE, MQTT_PROP_TYPE_SHORT},
{MQTT_PROP_AUTHENTICATION_METHOD, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_AUTHENTICATION_DATA, MQTT_PROP_TYPE_BINARY_DATA},
{MQTT_PROP_REQUEST_PROBLEM_INFORMATION, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_WILL_DELAY_INTERVAL, MQTT_PROP_TYPE_INT},
{MQTT_PROP_REQUEST_RESPONSE_INFORMATION, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_RESPONSE_INFORMATION, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_SERVER_REFERENCE, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_REASON_STRING, MQTT_PROP_TYPE_STRING},
{MQTT_PROP_RECEIVE_MAXIMUM, MQTT_PROP_TYPE_SHORT},
{MQTT_PROP_TOPIC_ALIAS_MAXIMUM, MQTT_PROP_TYPE_SHORT},
{MQTT_PROP_TOPIC_ALIAS, MQTT_PROP_TYPE_SHORT},
{MQTT_PROP_MAXIMUM_QOS, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_RETAIN_AVAILABLE, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_USER_PROPERTY, MQTT_PROP_TYPE_STRING_PAIR},
{MQTT_PROP_MAXIMUM_PACKET_SIZE, MQTT_PROP_TYPE_INT},
{MQTT_PROP_WILDCARD_SUBSCRIPTION_AVAILABLE, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_SUBSCRIPTION_IDENTIFIER_AVAILABLE, MQTT_PROP_TYPE_BYTE},
{MQTT_PROP_SHARED_SUBSCRIPTION_AVAILABLE, MQTT_PROP_TYPE_BYTE}};
struct mg_mqtt_prop {
uint8_t id; // Enumerated at MQTT5 Reference
uint32_t iv; // integer value for 8-, 16-, 32-bit integers types
struct mg_str key; // non-NULL only for user property type
struct mg_str val; // non-NULL only for UTF-8 types and user properties
};
struct mg_mqtt_opts {
struct mg_str user; // Username, can be empty
struct mg_str pass; // Password, can be empty
struct mg_str client_id; // Client ID
struct mg_str will_topic; // Will topic
struct mg_str will_message; // Will message
uint8_t will_qos; // Will message quality of service
struct mg_str topic; // topic
struct mg_str message; // message
uint8_t qos; // message quality of service
uint8_t version; // Can be 4 (3.1.1), or 5. If 0, assume 4.
uint16_t keepalive; // Keep-alive timer in seconds
bool will_retain; // Retain last will
bool retain; // Retain last will
bool clean; // Use clean session, 0 or 1
struct mg_mqtt_prop *props; // MQTT5 props array
int num_props; // number of props
struct mg_mqtt_prop *will_props; // only found in the CONNECT packet
int num_will_props; // number of will props
};
struct mg_mqtt_message {
@@ -1437,6 +1520,8 @@ struct mg_mqtt_message {
uint8_t cmd; // MQTT command, one of MQTT_CMD_*
uint8_t qos; // Quality of service
uint8_t ack; // Connack return code. 0 - success
size_t props_start; // offset to the start of the properties
size_t props_size; // length of the properties
};
struct mg_connection *mg_mqtt_connect(struct mg_mgr *, const char *url,
@@ -1445,15 +1530,17 @@ struct mg_connection *mg_mqtt_connect(struct mg_mgr *, const char *url,
struct mg_connection *mg_mqtt_listen(struct mg_mgr *mgr, const char *url,
mg_event_handler_t fn, void *fn_data);
void mg_mqtt_login(struct mg_connection *c, const struct mg_mqtt_opts *opts);
void mg_mqtt_pub(struct mg_connection *c, struct mg_str topic,
struct mg_str data, int qos, bool retain);
void mg_mqtt_sub(struct mg_connection *, struct mg_str topic, int qos);
void mg_mqtt_pub(struct mg_connection *c, const struct mg_mqtt_opts *opts);
void mg_mqtt_sub(struct mg_connection *, const struct mg_mqtt_opts *opts);
int mg_mqtt_parse(const uint8_t *, size_t, uint8_t, struct mg_mqtt_message *);
void mg_mqtt_send_header(struct mg_connection *, uint8_t cmd, uint8_t flags,
uint32_t len);
void mg_mqtt_ping(struct mg_connection *);
void mg_mqtt_pong(struct mg_connection *);
void mg_mqtt_disconnect(struct mg_connection *);
void mg_mqtt_disconnect(struct mg_connection *,
const struct mg_mqtt_opts *opts);
size_t mg_mqtt_next_prop(struct mg_mqtt_message *, struct mg_mqtt_prop *,
size_t ofs);