论坛 › nginx › nginx +ttserver 做URL转发

hege 发表于 2016-12-25 10:59:17

nginx +ttserver 做URL转发

tt版本1.1.41
by : Alex
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/* handle the HTTP GET command */
static void do_http_get(TTSOCK *sock, TASKARG *arg, TTREQ *req, int ver, const char *uri){

里面有：

int vsiz;
char *vbuf = tcadbget(adb, kbuf, ksiz, &vsiz);
if(vbuf){
tcxstrprintf(xstr, "HTTP/1.1 200 OK\r\n");
tcxstrprintf(xstr, "Content-Type: application/octet-stream\r\n");
tcxstrprintf(xstr, "Content-Length: %d\r\n", vsiz);
tcxstrprintf(xstr, "\r\n");
tcxstrcat(xstr, vbuf, vsiz);
tcfree(vbuf);
}else {
arg->counts++;
int len = sprintf(line, "Not Found\n");
tcxstrprintf(xstr, "HTTP/1.1 404 Not Found\r\n");
tcxstrprintf(xstr, "Content-Type: text/plain\r\n");
tcxstrprintf(xstr, "Content-Length: %d\r\n", len);
tcxstrprintf(xstr, "\r\n");
tcxstrcat(xstr, line, len);
}

修改为

int vsiz;
char *vbuf = tcadbget(adb, kbuf, ksiz, &vsiz);
if(vbuf){
tcxstrprintf(xstr, "HTTP/1.1 302 OK\r\n");
tcxstrprintf(xstr, "Content-Type: text/html; charaset=utf-8\r\n");
tcxstrprintf(xstr, "Location: %s\r\n", vbuf);
tcxstrprintf(xstr, "\r\n");
tcfree(vbuf);
}else {
//这个地方处理未找到值的情况，类似404，根据需要决定是否修改
arg->counts++;
int len = sprintf(line, "Not Found\n");
tcxstrprintf(xstr, "HTTP/1.1 404 Not Found\r\n");
tcxstrprintf(xstr, "Content-Type: text/plain\r\n");
tcxstrprintf(xstr, "Content-Length: %d\r\n", len);
tcxstrprintf(xstr, "\r\n");
tcxstrcat(xstr, line, len);
}

编译后安装
这样访问http://localhost:11211/thekey就会直接跳转到thekey在ttserver hashmap里对应的value这个location
用nginx过滤掉对http访问的put\update\delete等操作

location ~* /count(.*) {
if ($request_method = PUT ) {
return 403;
}
if ($request_method = DELETE ) {
return 403;
}
if ($request_method = POST ) {
return 403;
}
proxy_method GET;
}

或者注意在1051行开始的这段代码（ttserver.c）

if(!strcmp(cmd, "GET")){
do_http_get(sock, arg, req, ver, uri);
} else if(!strcmp(cmd, "HEAD")){
do_http_head(sock, arg, req, ver, uri);
} else if(!strcmp(cmd, "PUT")){
do_http_put(sock, arg, req, ver, uri);
} else if(!strcmp(cmd, "POST")){
do_http_post(sock, arg, req, ver, uri);
} else if(!strcmp(cmd, "DELETE")){
do_http_delete(sock, arg, req, ver, uri);
} else if(!strcmp(cmd, "OPTIONS")){
do_http_options(sock, arg, req, ver, uri);
}

可以把不需要的功能注释掉（这段未经过测试检验）

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