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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "cJSON.h"
#include "stellar/stellar.h"
#include "stellar/session.h"
#include "stellar/stellar_mq.h"
#include "stellar/stellar_exdata.h"
#include "stellar/stratum_decoder.h"
#include "stellar/log.h"
#define unused(x) ((void)(x))
#define STRATUM_LOG_MOUDLE "STRATUM_DECODER"
//字段内容宏
#define METHOD_STR "method"
#define WORKER_STR "worker"
#define PARAMS_STR "params"
#define AGENT_STR "agent"
enum stratum_field_type
{
CRYPTOCURRENCY_FLAG = 1,
MINING_POOL_FLAG,
MINING_PROGRAM_FLAG,
MINING_SUBSCRIBE_FLAG,
};
struct stratum_decoder_info
{
int plugin_id;
struct stellar *st;
struct logger *log_handle;
int tcp_topic_id;
int stratum_decoder_topic_id;
};
void free_stratum_filed(struct stratum_field *stratum_field)
{
if(stratum_field!=NULL){
if(stratum_field->mining_program.iov_base != NULL){
free(stratum_field->mining_program.iov_base);
stratum_field->mining_program.iov_len = 0;
}
if(stratum_field->mining_pools.iov_base != NULL){
free(stratum_field->mining_pools.iov_base);
stratum_field->mining_pools.iov_len = 0;
}
if(stratum_field->mining_subscribe.iov_base != NULL){
free(stratum_field->mining_subscribe.iov_base);
stratum_field->mining_subscribe.iov_len = 0;
}
free(stratum_field);
}
return;
}
void stratum_decoder_session_msg_free_cb(void *msg, void *msg_free_arg)
{
unused(msg_free_arg);
struct stratum_field *stratum_field = (struct stratum_field *)msg;
free_stratum_filed(stratum_field);
return;
}
int stratum_field_assign(char *content, struct stratum_field* stratum_field,int field_range)
{
switch (field_range)
{
case MINING_POOL_FLAG:
stratum_field->mining_pools.iov_len=strlen(content);
stratum_field->mining_pools.iov_base=(char*)malloc(stratum_field->mining_pools.iov_len+1);
memcpy(stratum_field->mining_pools.iov_base, content, stratum_field->mining_pools.iov_len);
((char*)stratum_field->mining_pools.iov_base)[stratum_field->mining_pools.iov_len]='\0';
break;
case MINING_PROGRAM_FLAG:
stratum_field->mining_program.iov_len=strlen(content);
stratum_field->mining_program.iov_base=(char*)malloc(stratum_field->mining_program.iov_len+1);
memcpy(stratum_field->mining_program.iov_base, content, stratum_field->mining_program.iov_len);
((char*)stratum_field->mining_program.iov_base)[stratum_field->mining_program.iov_len]='\0';
break;
case MINING_SUBSCRIBE_FLAG:
stratum_field->mining_subscribe.iov_len=strlen(content);
stratum_field->mining_subscribe.iov_base=(char*)malloc(stratum_field->mining_subscribe.iov_len+1);
memcpy(stratum_field->mining_subscribe.iov_base, content,stratum_field->mining_subscribe.iov_len);
((char*)stratum_field->mining_subscribe.iov_base)[stratum_field->mining_subscribe.iov_len]='\0';
break;
default:
return -1;
}
return 0;
}
struct stratum_field *stratum_json_decode(struct stratum_decoder_info *stratum_decoder_info, char *raw_json_str)
{
if(raw_json_str==NULL){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode error!:raw_json_str is null! ");
return NULL;
}
cJSON *root = cJSON_Parse(raw_json_str);
if (root == NULL){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode error!:root_json is null,error: %s ",cJSON_GetErrorPtr());
return NULL;
}
cJSON *method_item = cJSON_GetObjectItem(root, METHOD_STR);
if(method_item==NULL){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode error!:not_found '%s' in raw_json_str ", METHOD_STR);
cJSON_Delete(root);
return NULL;
}
struct stratum_field *stratum_field = (struct stratum_field *)calloc(1, sizeof(struct stratum_field));
int field_range = 0;
if(cJSON_IsString(method_item)){
int assign_ret = 0;
STELLAR_LOG_DEBUG(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode,find '%s':%s\n", METHOD_STR, method_item->valuestring);
if((strncasecmp("mining.subscribe", method_item->valuestring,strlen("mining.subscribe")) == 0)
||(strncasecmp("login", method_item->valuestring,strlen("login")) == 0)){
field_range = MINING_SUBSCRIBE_FLAG;
assign_ret = stratum_field_assign(raw_json_str, stratum_field, field_range);
cJSON *paras_item = cJSON_GetObjectItem(root, PARAMS_STR);
if(paras_item == NULL){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!not_found '%s' in raw_json_str ", PARAMS_STR);
goto err_ret;
}
if(cJSON_IsArray(paras_item)){
int asize = cJSON_GetArraySize(paras_item);
stratum_field->type = OTHER;
cJSON *array_item = cJSON_GetArrayItem(paras_item, 0);
if(cJSON_IsString(array_item)){
field_range = MINING_PROGRAM_FLAG;
assign_ret = stratum_field_assign(array_item->valuestring, stratum_field, field_range);
}
if(asize>2){
array_item = cJSON_GetArrayItem(paras_item, 2);
if(cJSON_IsString(array_item)){
field_range = MINING_POOL_FLAG;
assign_ret = stratum_field_assign(array_item->valuestring, stratum_field, field_range);
}
}
}else if(cJSON_IsObject(paras_item) || cJSON_IsRaw(paras_item)){
cJSON *agent_item = cJSON_GetObjectItem(paras_item, AGENT_STR);
if(agent_item == NULL){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!not_found '%s' in raw_json_str ", AGENT_STR);
goto err_ret;
}
if(cJSON_IsString(agent_item)){
field_range = MINING_PROGRAM_FLAG;
stratum_field->type = OTHER;
assign_ret = stratum_field_assign(agent_item->valuestring, stratum_field, field_range);
}
}else{
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!found '%s',json_value_type:%d\n ", PARAMS_STR, paras_item->type);
goto err_ret;
}
}else if(strncasecmp("eth_submitLogin", method_item->valuestring, strlen("eth_submitLogin")) == 0){
field_range = MINING_SUBSCRIBE_FLAG;
assign_ret = stratum_field_assign(raw_json_str, stratum_field, field_range);
cJSON *worker_item = cJSON_GetObjectItem(root, WORKER_STR);
if(worker_item == NULL){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!not_found '%s' in raw_json_str ", WORKER_STR);
goto err_ret;
}
if(cJSON_IsString(worker_item)){
field_range = MINING_PROGRAM_FLAG;
stratum_field->type = ETH;
assign_ret = stratum_field_assign(worker_item->valuestring, stratum_field, field_range);
}else{
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!found '%s',json_value_type:%d\n ", WORKER_STR, worker_item->type);
goto err_ret;
}
}else{
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!found '%s',json_value_type:%d\n ", METHOD_STR, method_item->type);
goto err_ret;
}
if(assign_ret<0){
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "field_assign_error:raw_json_str:%s\n ", raw_json_str);
goto err_ret;
}
cJSON_Delete(root);
return stratum_field;
}else{
STELLAR_LOG_INFO(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "json_decode:error!found '%s',json_value_type:%d\n ", METHOD_STR, method_item->type);
goto err_ret;
}
err_ret:
cJSON_Delete(root);
free_stratum_filed(stratum_field);
return NULL;
}
struct stratum_field *stratum_data_process(struct stratum_decoder_info *stratum_decoder_info, const char *tcpdata, size_t datalen)
{
if(tcpdata == NULL || datalen == 0)
{
return NULL;
}
char *tcp_json=(char*)malloc(datalen+1);
memcpy(tcp_json, tcpdata, datalen);
tcp_json[datalen]='\0';
struct stratum_field *stratum_field=stratum_json_decode(stratum_decoder_info, tcp_json);
if(stratum_field==NULL)
{
STELLAR_LOG_DEBUG(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "payload_decode failed!stratum_field is null");
}
free(tcp_json);
tcp_json=NULL;
return stratum_field;
}
void stratum_decoder_tcp_on_msg_cb(struct session *sess, int topic_id, const void *msg, void *per_session_ctx, void *plugin_env)
{
unused(topic_id);
unused(per_session_ctx);
unused(msg);
struct stratum_decoder_info *stratum_decoder_info = (struct stratum_decoder_info *)plugin_env;
const struct packet *pkt = session_get0_current_packet(sess);
const char *payload = packet_get_payload(pkt);
size_t payload_len = packet_get_payload_len(pkt);
struct stratum_field *stratum_field = stratum_data_process(stratum_decoder_info, payload, payload_len);
if (stratum_field != NULL)
{
if (session_mq_publish_message(sess, stratum_decoder_info->stratum_decoder_topic_id, stratum_field) < 0)
{
STELLAR_LOG_FATAL(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "stratum_decoder_tcp_on_msg_cb:session_mq_publish_message failed");
free_stratum_filed(stratum_field);
}
stellar_session_plugin_dettach_current_session(sess);
}
return;
}
extern "C" void *stratum_decoder_init(struct stellar *st)
{
struct stratum_decoder_info *stratum_decoder_info = (struct stratum_decoder_info *)malloc(sizeof(struct stratum_decoder_info));
stratum_decoder_info->st = st;
stratum_decoder_info->log_handle = stellar_get_logger(st);
stratum_decoder_info->plugin_id = stellar_session_plugin_register(st, NULL, NULL, stratum_decoder_info);
if (stratum_decoder_info->plugin_id < 0)
{
STELLAR_LOG_FATAL(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "stellar_session_plugin_register failed");
goto ERROR;
}
stratum_decoder_info->stratum_decoder_topic_id = stellar_mq_create_topic(st, STRATUM_MESSAGE_TOPIC, stratum_decoder_session_msg_free_cb, NULL);
if (stratum_decoder_info->stratum_decoder_topic_id < 0)
{
STELLAR_LOG_FATAL(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "stellar_session_mq_create_topic failed");
goto ERROR;
}
stratum_decoder_info->tcp_topic_id = stellar_mq_get_topic_id(st, TOPIC_TCP_STREAM);
if (stratum_decoder_info->tcp_topic_id < 0)
{
STELLAR_LOG_FATAL(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "stellar_session_mq_get_topic_id failed");
goto ERROR;
}
if (stellar_session_mq_subscribe(st, stratum_decoder_info->tcp_topic_id, stratum_decoder_tcp_on_msg_cb, stratum_decoder_info->plugin_id) < 0)
{
STELLAR_LOG_FATAL(stratum_decoder_info->log_handle, STRATUM_LOG_MOUDLE, "stellar_session_mq_subscribe failed");
goto ERROR;
}
return stratum_decoder_info;
ERROR:
if (stratum_decoder_info)
{
free(stratum_decoder_info);
}
return NULL;
}
extern "C" void stratum_decoder_exit(void *plugin_env)
{
struct stratum_decoder_info *stratum_decoder_info = (struct stratum_decoder_info *)plugin_env;
if (stratum_decoder_info != NULL)
{
free(stratum_decoder_info);
}
return;
}
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