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comparison lldb/source/Utility/UriParser.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 0572611fdcc8
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147:c2174574ed3a 150:1d019706d866
1 //===-- UriParser.cpp -----------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "lldb/Utility/UriParser.h"
10
11 #include <string>
12
13 #include <stdint.h>
14 #include <tuple>
15
16 using namespace lldb_private;
17
18 // UriParser::Parse
19 bool UriParser::Parse(llvm::StringRef uri, llvm::StringRef &scheme,
20 llvm::StringRef &hostname, int &port,
21 llvm::StringRef &path) {
22 llvm::StringRef tmp_scheme, tmp_hostname, tmp_path;
23
24 const llvm::StringRef kSchemeSep("://");
25 auto pos = uri.find(kSchemeSep);
26 if (pos == std::string::npos)
27 return false;
28
29 // Extract path.
30 tmp_scheme = uri.substr(0, pos);
31 auto host_pos = pos + kSchemeSep.size();
32 auto path_pos = uri.find('/', host_pos);
33 if (path_pos != std::string::npos)
34 tmp_path = uri.substr(path_pos);
35 else
36 tmp_path = "/";
37
38 auto host_port = uri.substr(
39 host_pos,
40 ((path_pos != std::string::npos) ? path_pos : uri.size()) - host_pos);
41
42 // Extract hostname
43 if (!host_port.empty() && host_port[0] == '[') {
44 // hostname is enclosed with square brackets.
45 pos = host_port.find(']');
46 if (pos == std::string::npos)
47 return false;
48
49 tmp_hostname = host_port.substr(1, pos - 1);
50 host_port = host_port.drop_front(pos + 1);
51 if (!host_port.empty() && !host_port.consume_front(":"))
52 return false;
53 } else {
54 std::tie(tmp_hostname, host_port) = host_port.split(':');
55 }
56
57 // Extract port
58 if (!host_port.empty()) {
59 uint16_t port_value = 0;
60 if (host_port.getAsInteger(0, port_value))
61 return false;
62 port = port_value;
63 } else
64 port = -1;
65
66 scheme = tmp_scheme;
67 hostname = tmp_hostname;
68 path = tmp_path;
69 return true;
70 }