servlet.c

实现了一个简单的web服务器

#include "server.h"

void doAction(HTTP_REQ *http_req,int client_sockfd) {
	char* param;
	char json[TEXT_SIZE];
	char text_content[TEXT_SIZE];
	char tmp[50];
	int number;
	int ret;
	int status[LED_NUM];
	int i=0;

	char* action=http_req->req_url;
	if(strcmp(action,"turn_on")==0) { //开灯
		param=getParameter(http_req,"index");
		number=atoi(param);
		printf("led number %d\n",number);
		ret=turn_on(number);
		if(ret==1)
			sprintf(json,"\"success\":true");
		else 
			sprintf(json,"\"success\":false");
	}
/*	else if(strcmp(action,"turn_off")==0) { //关灯
		param=getParameter(http_req,"index");
		number=atoi(param);
		printf("led number %d\n",number);
		ret=turn_off(number);
		if(ret==1)
			sprintf(json,"\"success\":true");
		else 
			sprintf(json,"\"success\":false");
	}*/
	else if(strcmp(action,"get_status")==0) { //当前所有灯的状态
		printf("get_status\n");		
		ret=get_status(status);
		sprintf(json,"{\"status\":[");
		for(i=0;i<LED_NUM;i++) {
			if(i!=LED_NUM-1)
				sprintf(tmp,"{\"led\":%d},",status[i]);
			else 
				sprintf(tmp,"{\"led\":%d}],\"success\":true}",status[i]);
		
			strcat(json,tmp);
		}
	}
	else if(strcmp(action,"get_history")==0) { //LED亮灭的历史 	
		printf("get_history\n");
		ret=get_history(text_content);
		sprintf(json,"%s",text_content);
	}
	else if(strcmp(action,"get_log")==0) { //操作日志
		printf("get_log\n");
		ret=get_log(text_content);
		sprintf(json,"%s",text_content);
	}
	else if(strcmp(action,"command")==0){ //执行一些列的开灯
		param=getParameter(http_req,"command");
		printf("param %s\n",param);
		ret=command(param);
		sprintf(json,"{\"command\":false}");
	}

	send(client_sockfd, json , strlen(json), 0);	 
}


char *getParameter(HTTP_REQ *http_req,char* name) {
	int i;	
	for(i=0;i<http_req->param_count;i++) {
		if(strcmp(http_req->params[i].name,name)==0) {		
			return http_req->params[i].value;
		}
	}	
}