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96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
#include "webcc/utility.h"
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#include <algorithm>
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#include <ctime>
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#include <fstream>
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#include <iomanip> // for put_time
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#include <iostream>
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#include <sstream>
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#include "webcc/string.h"
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#include "webcc/version.h"
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namespace webcc {
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namespace utility {
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const std::string& UserAgent() {
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static const std::string s_user_agent = std::string("Webcc/") + WEBCC_VERSION;
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return s_user_agent;
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}
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std::string HttpDate() {
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std::time_t t = std::time(nullptr);
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std::tm* gmt = std::gmtime(&t);
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std::stringstream date;
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date.imbue(std::locale::classic()); // Use classic C locale
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date << std::put_time(gmt, "%a, %d %b %y %h:%m:%s") << " GMT";
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return date.str();
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}
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std::size_t TellSize(const fs::path& path) {
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// Flag "ate": seek to the end of stream immediately after open.
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fs::ifstream stream{ path, std::ios::binary | std::ios::ate };
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if (stream.fail()) {
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return kInvalidLength;
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}
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return static_cast<std::size_t>(stream.tellg());
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}
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bool ReadFile(const fs::path& path, std::string* output) {
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// Flag "ate": seek to the end of stream immediately after open.
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fs::ifstream stream{ path, std::ios::binary | std::ios::ate };
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if (stream.fail()) {
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return false;
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}
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auto size = stream.tellg();
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output->resize(static_cast<std::size_t>(size), '\0');
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stream.seekg(std::ios::beg);
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stream.read(&(*output)[0], size);
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if (stream.fail()) {
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return false;
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}
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return true;
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}
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void DumpByLine(const std::string& data, std::ostream& os,
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const std::string& prefix) {
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std::vector<boost::string_view> lines;
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Split(data, '\n', false, &lines);
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std::size_t size = 0;
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for (const auto& line : lines) {
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os << prefix;
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if (line.size() + size > kMaxDumpSize) {
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os.write(line.data(), kMaxDumpSize - size);
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os << "..." << std::endl;
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break;
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} else {
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os << line << std::endl;
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size += line.size();
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}
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}
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}
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void PrintEndpoint(std::ostream& ostream,
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const boost::asio::ip::tcp::endpoint& endpoint) {
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ostream << endpoint;
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if (endpoint.protocol() == boost::asio::ip::tcp::v4()) {
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ostream << ", v4";
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} else if (endpoint.protocol() == boost::asio::ip::tcp::v6()) {
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ostream << ", v6";
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}
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}
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std::string EndpointToString(const boost::asio::ip::tcp::endpoint& endpoint) {
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std::stringstream ss;
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PrintEndpoint(ss, endpoint);
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return ss.str();
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}
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} // namespace utility
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} // namespace webcc
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