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100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
#include "webcc/request.h"
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#include "webcc/logger.h"
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#include "webcc/utility.h"
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namespace webcc {
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// -----------------------------------------------------------------------------
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namespace misc_strings {
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// Literal strings can't be used because they have an extra '\0'.
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const char CRLF[] = { '\r', '\n' };
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const char DOUBLE_DASHES[] = { '-', '-' };
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} // misc_strings
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// -----------------------------------------------------------------------------
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void Request::Prepare() {
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CreateStartLine();
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if (url_.port().empty()) {
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SetHeader(headers::kHost, url_.host());
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} else {
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SetHeader(headers::kHost, url_.host() + ":" + url_.port());
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}
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if (form_parts_.empty()) {
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Message::Prepare();
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return;
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}
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// Multipart form data.
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// Another choice to generate the boundary is like what Apache does.
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// See: https://stackoverflow.com/a/5686863
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if (boundary_.empty()) {
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boundary_ = utility::RandomUuid();
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}
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SetContentType("multipart/form-data; boundary=" + boundary_);
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Payload data_payload;
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using boost::asio::buffer;
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for (auto& part : form_parts_) {
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// Boundary
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data_payload.push_back(buffer(misc_strings::DOUBLE_DASHES));
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data_payload.push_back(buffer(boundary_));
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data_payload.push_back(buffer(misc_strings::CRLF));
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part->Prepare(&data_payload);
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}
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// Boundary end
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data_payload.push_back(buffer(misc_strings::DOUBLE_DASHES));
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data_payload.push_back(buffer(boundary_));
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data_payload.push_back(buffer(misc_strings::DOUBLE_DASHES));
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data_payload.push_back(buffer(misc_strings::CRLF));
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// Update Content-Length header.
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std::size_t content_length = 0;
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for (auto& buffer : data_payload) {
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content_length += buffer.size();
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}
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SetContentLength(content_length);
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// Prepare start line and headers.
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Message::Prepare();
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// Append payload of content data.
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payload_.insert(payload_.end(), data_payload.begin(), data_payload.end());
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}
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void Request::CreateStartLine() {
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if (!start_line_.empty()) {
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return;
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}
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if (url_.host().empty()) {
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throw Error{ Error::kSyntaxError, "Host is missing" };
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}
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std::string target = "/" + url_.path();
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if (!url_.query().empty()) {
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target += "?";
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target += url_.query();
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}
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start_line_ = method_;
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start_line_ += " ";
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start_line_ += target;
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start_line_ += " HTTP/1.1";
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}
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} // namespace webcc
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