| //===-- UriParser.cpp -----------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Utility/UriParser.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| #include <string> |
| |
| #include <cstdint> |
| #include <tuple> |
| |
| using namespace lldb_private; |
| |
| llvm::raw_ostream &lldb_private::operator<<(llvm::raw_ostream &OS, |
| const URI &U) { |
| OS << U.scheme << "://[" << U.hostname << ']'; |
| if (U.port) |
| OS << ':' << *U.port; |
| return OS << U.path; |
| } |
| |
| llvm::Optional<URI> URI::Parse(llvm::StringRef uri) { |
| URI ret; |
| |
| const llvm::StringRef kSchemeSep("://"); |
| auto pos = uri.find(kSchemeSep); |
| if (pos == std::string::npos) |
| return llvm::None; |
| |
| // Extract path. |
| ret.scheme = uri.substr(0, pos); |
| auto host_pos = pos + kSchemeSep.size(); |
| auto path_pos = uri.find('/', host_pos); |
| if (path_pos != std::string::npos) |
| ret.path = uri.substr(path_pos); |
| else |
| ret.path = "/"; |
| |
| auto host_port = uri.substr( |
| host_pos, |
| ((path_pos != std::string::npos) ? path_pos : uri.size()) - host_pos); |
| |
| // Extract hostname |
| if (!host_port.empty() && host_port[0] == '[') { |
| // hostname is enclosed with square brackets. |
| pos = host_port.rfind(']'); |
| if (pos == std::string::npos) |
| return llvm::None; |
| |
| ret.hostname = host_port.substr(1, pos - 1); |
| host_port = host_port.drop_front(pos + 1); |
| if (!host_port.empty() && !host_port.consume_front(":")) |
| return llvm::None; |
| } else { |
| std::tie(ret.hostname, host_port) = host_port.split(':'); |
| } |
| |
| // Extract port |
| if (!host_port.empty()) { |
| uint16_t port_value = 0; |
| if (host_port.getAsInteger(0, port_value)) |
| return llvm::None; |
| ret.port = port_value; |
| } else |
| ret.port = llvm::None; |
| |
| return ret; |
| } |