bool http_header::build_response(string& out) const
{
out.clear();
if (status_ > 0)
{
if (cgi_mode_)
out.format("STATUS: %d\r\n", status_);
else
{
out = "HTTP/1.1 ";
out << status_ << " " << http_status(status_) << "\r\n";
time_t now = time(NULL);
char buf[64];
date_format(buf, sizeof(buf), now);
out << "Date: " << buf << "\r\n";
out << "Server: acl\r\n";
}
}
if (!cookies_.empty())
{
std::list<HttpCookie*>::const_iterator it = cookies_.begin();
for (; it != cookies_.end(); ++it)
{
out.format_append("Set-Cookie: %s=%s",
(*it)->getName(), (*it)->getValue());
const std::list<HTTP_PARAM*>& params = (*it)->getParams();
std::list<HTTP_PARAM*>::const_iterator cit = params.begin();
for (; cit != params.end(); ++ cit)
{
out.format_append("; %s=%s",
(*cit)->name, (*cit)->value);
}
out << "\r\n";
}
}
// 添加分段响应字段
if (range_from_ >= 0 && range_to_ >= range_from_ && range_total_ > 0)
out << "Content-Range: bytes=" << range_from_ << '-'
<< range_to_ << '/' << range_total_ << "\r\n";
// 如果是 gzip 压缩数据，当非 chunked 传输时，必须取消 Content-Length 字段，
// 同时禁止保持长连接，即： Connection: close
if (transfer_gzip_)
{
out << "Content-Encoding: gzip\r\n";
if (!chunked_transfer_ && keep_alive_)
const_cast<http_header*>(this)->keep_alive_ = false;
if (content_length_ > 0)
const_cast<http_header*>(this)->content_length_ = -1;
}
build_common(out);
out << "\r\n";
return true;
}
bool http_header::build_response(string& out) const
{
out.clear();
if (status_ > 0)
{
if (cgi_mode_)
out.format("STATUS: %d\r\n", status_);
else
{
out = "HTTP/1.1 ";
out << status_ << " " << http_status(status_) << "\r\n";
time_t now = time(NULL);
char buf[64];
date_format(buf, sizeof(buf), now);
out << "Date: " << buf << "\r\n";
}
}
if (!cookies_.empty())
{
std::list<HttpCookie*>::const_iterator it = cookies_.begin();
for (; it != cookies_.end(); ++it)
{
out.format_append("Set-Cookie: %s=%s",
(*it)->getName(), (*it)->getValue());
const std::list<HTTP_PARAM*>& params = (*it)->getParams();
std::list<HTTP_PARAM*>::const_iterator cit = params.begin();
for (; cit != params.end(); ++ cit)
{
out.format_append("; %s=%s",
(*cit)->name, (*cit)->value);
}
out << "\r\n";
}
}
build_common(out);
out << "\r\n";
return true;
}
bool http_header::build_request(string& buf) const
{
if (url_ == NULL || *url_ == 0)
{
logger_error("url empty");
return (false);
}
buf.format("%s %s", method_s_, url_);
if (!params_.empty())
{
buf << '?';
acl::string tmp;
int i = 0;
std::list<HTTP_PARAM*>::const_iterator it = params_.begin();
for (; it != params_.end(); ++it)
{
if (i > 0)
buf += '&';
else
i++;
// 需要对参数进行 URL 编码
tmp.url_encode((*it)->name);
buf += tmp.c_str();
// 允许参数值为空指针
if ((*it)->value == NULL)
continue;
buf += '=';
// 允许参数值为空串
if (*((*it)->value) == 0)
continue;
tmp.url_encode((*it)->value);
buf += tmp.c_str();
}
}
buf += " HTTP/1.1\r\n";
if (accept_compress_)
// 因为目前的 zlib_stream 仅支持于此
buf += "Accept-Encoding: gzip\r\n";
if (host_[0] != 0)
buf.format_append("Host: %s\r\n", host_);
if (!cookies_.empty())
{
buf += "Cookie: ";
std::list<HttpCookie*>::const_iterator it = cookies_.begin();
for (; it != cookies_.end(); ++it)
{
if (it != cookies_.begin())
buf += "; ";
buf << (*it)->getName() << "=" << (*it)->getValue();
}
buf += "\r\n";
}
// 添加分段请求字段
if (range_from_ >= 0)
{
buf << "Range: bytes=" << range_from_ << '-';
if (range_to_ >= range_from_)
buf << range_to_;
buf += "\r\n";
}
build_common(buf);
buf += "\r\n";
return (true);
}
