163 lines
3.9 KiB
C++
163 lines
3.9 KiB
C++
#include <event2/event.h>
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#include <event2/listener.h>
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#include <event2/http.h>
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#include <event2/keyvalq_struct.h>
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#include <event2/buffer.h>
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#include <string.h>
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#ifndef _WIN32
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#include <signal.h>
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#endif
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#include <iostream>
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#include <string>
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using namespace std;
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#define WEBROOT "."
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#define DEFAULTINDEX "index.html"
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void http_cb(struct evhttp_request *request, void *arg)
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{
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cout << "http_cb" << endl;
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//1 获取浏览器的请求信息
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//uri
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const char *uri = evhttp_request_get_uri(request);
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cout << "uri:" << uri << endl;
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//请求类型 GET POST
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string cmdtype;
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switch (evhttp_request_get_command(request)) {
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case EVHTTP_REQ_GET:
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cmdtype = "GET";
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break;
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case EVHTTP_REQ_POST:
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cmdtype = "POST";
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break;
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}
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cout << "cmdtype:" << cmdtype << endl;
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// 消息报头
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evkeyvalq *headers = evhttp_request_get_input_headers(request);
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cout << "====== headers ======" << endl;
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for (evkeyval *p = headers->tqh_first; p != NULL; p = p->next.tqe_next) {
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cout << p->key << ":" << p->value << endl;
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}
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// 请求正文 (GET为空，POST有表单信息 )
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evbuffer *inbuf = evhttp_request_get_input_buffer(request);
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char buf[1024] = { 0 };
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cout << "======= Input data ======" << endl;
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while (evbuffer_get_length(inbuf)) {
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int n = evbuffer_remove(inbuf, buf, sizeof(buf) - 1);
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if (n > 0)
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{
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buf[n] = '\0';
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cout << buf << endl;
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}
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}
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//2 回复浏览器
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//状态行 消息报头 响应正文 HTTP_NOTFOUND HTTP_INTERNAL
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string filepath = WEBROOT;
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filepath += uri;
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if (strcmp(uri, "/") == 0)
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{
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//默认加入首页文件
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filepath += DEFAULTINDEX;
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}
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//消息报头
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evkeyvalq *outhead = evhttp_request_get_output_headers(request);
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// 要支持 图片 js css 下载zip文件
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// 获取文件的后缀
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// ./index.html
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int pos = filepath.rfind('.');
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string postfix = filepath.substr(pos + 1, filepath.size() - (pos + 1));
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if (postfix == "jpg" || postfix == "gif" || postfix == "png")
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{
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string tmp = "image/" + postfix;
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evhttp_add_header(outhead, "Content-Type", tmp.c_str());
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}
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else if (postfix == "zip")
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{
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evhttp_add_header(outhead, "Content-Type", "application/zip");
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}
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else if (postfix == "html")
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{
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evhttp_add_header(outhead, "Content-Type", "text/html;charset=UTF8");
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//evhttp_add_header(outhead, "Content-Type", "text/html");
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}
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else if (postfix == "css")
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{
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evhttp_add_header(outhead, "Content-Type", "text/css");
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}
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//读取html文件返回正文
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if(filepath.find_first_of("?") != std::string::npos){
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std::cout<<"filepath.find_first_of "<<filepath.find_first_of("?")<<std::endl;
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std::cout<<"sub is "<< filepath.substr(0,filepath.find_first_of("?"))<<"\r\n";
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filepath = filepath.substr(0,filepath.find_first_of("?"));
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}else{
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}
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// std::cout<<"filepath.find_first_of "<<filepath.find_first_of("?")<<std::endl;
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FILE *fp = fopen(filepath.c_str(), "rb");
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if (!fp)
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{
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evhttp_send_reply(request, HTTP_NOTFOUND, "", 0);
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return;
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}
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evbuffer *outbuf = evhttp_request_get_output_buffer(request);
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for (;;)
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{
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int len = fread(buf, 1, sizeof(buf), fp);
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if (len <= 0)break;
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evbuffer_add(outbuf, buf, len);
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}
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fclose(fp);
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evhttp_send_reply(request, HTTP_OK, "", outbuf);
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}
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int main(int argc,char *argv[])
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{
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#ifdef _WIN32
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//初始化socket库
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WSADATA wsa;
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WSAStartup(MAKEWORD(2,2),&wsa);
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#else
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//忽略管道信号，发送数据给已关闭的socket
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if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
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return 1;
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#endif
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std::cout << "test server!\n";
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//创建libevent的上下文
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event_base * base = event_base_new();
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if (base) {
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cout << "event_base_new success!" << endl;
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}
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// http 服务器
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//1 创建evhttp上下文
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evhttp *evh = evhttp_new(base);
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//2 绑定端口和IP
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if (evhttp_bind_socket(evh, "0.0.0.0", 8080) != 0)
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{
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cout << "evhttp_bind_socket failed!" << endl;
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}
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//3 设定回调函数
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evhttp_set_gencb(evh, http_cb, 0);
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//事件分发处理
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if(base)
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event_base_dispatch(base);
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if(base)
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event_base_free(base);
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if(evh)
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evhttp_free(evh);
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return 0;
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}
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