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