LLDB  mainline
UriParser.cpp
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1 //===-- UriParser.cpp -------------------------------------------*- C++ -*-===//
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 
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 }
Enumerations for broadcasting.
Definition: SBLaunchInfo.h:14
static bool Parse(llvm::StringRef uri, llvm::StringRef &scheme, llvm::StringRef &hostname, int &port, llvm::StringRef &path)
Definition: UriParser.cpp:19