bool http_servlet::doUnknown(acl::HttpServletRequest&,
acl::HttpServletResponse& res)
{
res.setStatus(400);
res.setContentType("text/html; charset=$<CHARSET>");
// 发送 http 响应头
if (res.sendHeader() == false)
return false;
// 发送 http 响应体
acl::string buf("<root error='unkown request method' />\r\n");
(void) res.getOutputStream().write(buf);
return false;
}
bool http_servlet::doUnknown(acl::HttpServletRequest& req,
acl::HttpServletResponse& res)
{
out_.format(">>> request method: doUnknown <<<\r\n");
logger_request(req);
res.setStatus(400);
res.setContentType("text/html; charset=");
// 发送 http 响应体
acl::string buf("<root error='unkown request method' />\r\n");
(void) res.getOutputStream().write(buf);
return false;
}
bool http_servlet::doOther(acl::HttpServletRequest&,
acl::HttpServletResponse& res, const char* method)
{
res.setStatus(400);
res.setContentType("text/html; charset=");
// 发送 http 响应头
if (res.sendHeader() == false)
return false;
// 发送 http 响应体
acl::string buf;
buf.format("<root error='unkown request method %s' />\r\n", method);
(void) res.getOutputStream().write(buf);
return false;
}
bool http_servlet::doError(acl::HttpServletRequest&,
acl::HttpServletResponse& res)
{
res.setStatus(400);
res.setContentType("text/html; charset=");
// 发送 http 响应头
if (res.sendHeader() == false)
return false;
// 发送 http 响应体
acl::string buf;
buf.format("<root error='some error happened!' />\r\n");
(void) res.getOutputStream().write(buf);
return false;
}
bool https_client::http_request(acl::HttpServletRequest& req,
acl::HttpServletResponse& res)
{
const char* host = req.getRemoteHost();
if (host == NULL || *host == 0)
host = req.getLocalAddr();
acl::string server_addr;
if (ssl_conf_ == NULL)
server_addr.format("%s:80", host);
else
server_addr.format("%s:443", host);
std::auto_ptr<acl::http_client> backend(new acl::http_client);
// 连接服务器
if (connect_server(server_addr, *backend) == false)
return false;
acl::http_client* front = req.getClient();
// 取得 HTTP 请求头数据
acl::string req_hdr;
front->sprint_header(req_hdr, NULL);
// 转发 HTTP 请求头至服务器
if (backend->get_ostream().write(req_hdr) == -1)
{
out_.puts(">>>>write header error");
return false;
}
if (backend->get_ostream().write("\r\n") == -1)
{
out_.puts(">>>>write CRLF error");
return false;
}
// 如果还有数据体，则转发请求的数据体给服务器
long long int len = req.getContentLength();
if (len > 0)
{
char req_body[8192];
int ret;
while (true)
{
ret = front->read_body(req_body, sizeof(req_body) - 1);
if (ret < 0)
{
out_.puts(">>> read req body error");
return false;
}
if (ret == 0)
break;
req_body[ret] = 0;
out_.write(req_body, ret);
if (backend->get_ostream().write(req_body, ret) == -1)
{
out_.puts(">>> write body to server error");
return false;
}
}
}
out_.puts("");
// 开始从后端服务器读取响应头和响应体数据
out_.puts(">>>> begin read res header<<<<<");
if (backend->read_head() == false)
{
out_.puts(">>>>>>>>read header error<<<<<<<<<<");
return false;
}
acl::string res_hdr;
backend->sprint_header(res_hdr, NULL);
if (res.getOutputStream().write(res_hdr) == -1)
{
out_.puts(">>>>>write res hdr error<<<<<<");
return false;
}
if (res.getOutputStream().write("\r\n") == -1)
{
out_.puts(">>>write CRLF error");
return false;
}
out_.puts("------------------res hdr----------------");
out_.write(res_hdr);
out_.puts("------------------res hdr end------------");
char buf[8192];
while (true)
{
int ret = backend->read_body(buf, sizeof(buf) - 1);
if (ret < 0)
{
logger_error(">>> read body error");
return false;
}
else if (ret == 0)
break;
buf[ret] = 0;
out_.write(buf, ret);
if (res.getOutputStream().write(buf, ret) == -1)
{
out_.puts(">>> write res body error");
return false;
}
}
const char* ptr = backend->header_value("Transfer-Encoding");
if (ptr == NULL || *ptr == 0 || strcasecmp(ptr, "chunked") != 0)
return backend->keep_alive();
// 发送 http 响应体，因为设置了 chunk 传输模式，所以需要多调用一次
// res.write 且两个参数均为 0 以表示 chunk 传输数据结束
return res.write(NULL, 0);
}