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Copy pathhttp_endpoint.cpp
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167 lines (133 loc) · 5.07 KB
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/*
This file is part of libhttpserver
Copyright (C) 2011-2019 Sebastiano Merlino
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
*/
#include <ctype.h>
#include <algorithm>
#include <map>
#include <memory>
// Disabling lint error on regex (the only reason it errors is because the Chromium team prefers google/re2)
#include <regex> // NOLINT [build/c++11]
#include <sstream>
#include <stdexcept>
#include <string>
#include <vector>
#include "httpserver/details/http_endpoint.hpp"
#include "httpserver/http_utils.hpp"
using std::string;
using std::vector;
namespace httpserver {
namespace details {
http_endpoint::~http_endpoint() {
}
http_endpoint::http_endpoint(const string& url, bool family, bool registration, bool use_regex):
family_url(family),
reg_compiled(false) {
if (use_regex && !registration) {
throw std::invalid_argument("Cannot use regex if not during registration");
}
url_normalized = use_regex ? "^/" : "/";
vector<string> parts;
#ifdef CASE_INSENSITIVE
string_utilities::to_lower_copy(url, url_complete);
#else
url_complete = url;
#endif
if (url_complete[url_complete.size() - 1] == '/') {
url_complete = url_complete.substr(0, url_complete.size() - 1);
}
if (url_complete[0] != '/') {
url_complete = "/" + url_complete;
}
parts = httpserver::http::http_utils::tokenize_url(url);
string buffered;
bool first = true;
for (unsigned int i = 0; i < parts.size(); i++) {
if (!registration) {
url_normalized += (first ? "" : "/") + parts[i];
first = false;
url_pieces.push_back(parts[i]);
continue;
}
if ((parts[i] != "") && (parts[i][0] != '{')) {
if (first) {
url_normalized = (parts[i][0] == '^' ? "" : url_normalized) + parts[i];
first = false;
} else {
url_normalized += "/" + parts[i];
}
url_pieces.push_back(parts[i]);
continue;
}
if ((parts[i].size() < 3) || (parts[i][0] != '{') || (parts[i][parts[i].size() - 1] != '}')) {
throw std::invalid_argument("Bad URL format");
}
std::string::size_type bar = parts[i].find_first_of('|');
url_pars.push_back(parts[i].substr(1, bar != string::npos ? bar - 1 : parts[i].size() - 2));
url_normalized += (first ? "" : "/") + (bar != string::npos ? parts[i].substr(bar + 1, parts[i].size() - bar - 2) : "([^\\/]+)");
first = false;
chunk_positions.push_back(i);
url_pieces.push_back(parts[i]);
}
if (use_regex) {
url_normalized += "$";
try {
re_url_normalized = std::regex(url_normalized, std::regex::extended | std::regex::icase | std::regex::nosubs);
} catch (std::regex_error& e) {
throw std::invalid_argument("Not a valid regex in URL: " + url_normalized);
}
reg_compiled = true;
}
}
http_endpoint::http_endpoint(const http_endpoint& h):
url_complete(h.url_complete),
url_normalized(h.url_normalized),
url_pars(h.url_pars),
url_pieces(h.url_pieces),
chunk_positions(h.chunk_positions),
re_url_normalized(h.re_url_normalized),
family_url(h.family_url),
reg_compiled(h.reg_compiled) {
}
http_endpoint& http_endpoint::operator =(const http_endpoint& h) {
url_complete = h.url_complete;
url_normalized = h.url_normalized;
family_url = h.family_url;
reg_compiled = h.reg_compiled;
re_url_normalized = h.re_url_normalized;
url_pars = h.url_pars;
url_pieces = h.url_pieces;
chunk_positions = h.chunk_positions;
return *this;
}
bool http_endpoint::operator <(const http_endpoint& b) const {
if (family_url != b.family_url) return family_url;
COMPARATOR(url_normalized, b.url_normalized, std::toupper);
}
bool http_endpoint::match(const http_endpoint& url) const {
if (!reg_compiled) throw std::invalid_argument("Cannot run match. Regex suppressed.");
if (!family_url || url.url_pieces.size() < url_pieces.size()) {
return regex_match(url.url_complete, re_url_normalized);
}
string nn = "/";
bool first = true;
for (unsigned int i = 0; i < url_pieces.size(); i++) {
nn += (first ? "" : "/") + url.url_pieces[i];
first = false;
}
return regex_match(nn, re_url_normalized);
}
} // namespace details
} // namespace httpserver