Steve DiBenedetto | 2c2b889 | 2014-02-27 11:46:48 -0700 | [diff] [blame^] | 1 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| 2 | /** |
| 3 | * Copyright (C) 2014 Named Data Networking Project |
| 4 | * See COPYING for copyright and distribution information. |
| 5 | */ |
| 6 | |
| 7 | #include "command-validator.hpp" |
| 8 | #include <ndn-cpp-dev/util/io.hpp> |
| 9 | #include <ndn-cpp-dev/security/identity-certificate.hpp> |
| 10 | |
| 11 | namespace nfd { |
| 12 | |
| 13 | NFD_LOG_INIT("CommandValidator"); |
| 14 | |
| 15 | CommandValidator::CommandValidator() |
| 16 | { |
| 17 | |
| 18 | } |
| 19 | |
| 20 | CommandValidator::~CommandValidator() |
| 21 | { |
| 22 | |
| 23 | } |
| 24 | |
| 25 | void |
| 26 | CommandValidator::setConfigFile(ConfigFile& configFile) |
| 27 | { |
| 28 | configFile.addSectionHandler("authorizations", |
| 29 | bind(&CommandValidator::onConfig, this, _1, _2)); |
| 30 | } |
| 31 | |
| 32 | static inline void |
| 33 | aggregateErrors(std::stringstream& ss, const std::string& msg) |
| 34 | { |
| 35 | if (!ss.str().empty()) |
| 36 | { |
| 37 | ss << "\n"; |
| 38 | } |
| 39 | ss << msg; |
| 40 | } |
| 41 | |
| 42 | void |
| 43 | CommandValidator::onConfig(const ConfigSection& section, |
| 44 | bool isDryRun) |
| 45 | { |
| 46 | const ConfigSection EMPTY_SECTION; |
| 47 | |
| 48 | if (section.begin() == section.end()) |
| 49 | { |
| 50 | throw ConfigFile::Error("No authorize sections found"); |
| 51 | } |
| 52 | |
| 53 | std::stringstream dryRunErrors; |
| 54 | ConfigSection::const_iterator authIt; |
| 55 | for (authIt = section.begin(); authIt != section.end(); authIt++) |
| 56 | { |
| 57 | std::string keyfile; |
| 58 | try |
| 59 | { |
| 60 | keyfile = authIt->second.get<std::string>("keyfile"); |
| 61 | } |
| 62 | catch (const std::runtime_error& e) |
| 63 | { |
| 64 | std::string msg = "No keyfile specified"; |
| 65 | if (!isDryRun) |
| 66 | { |
| 67 | throw ConfigFile::Error(msg); |
| 68 | } |
| 69 | aggregateErrors(dryRunErrors, msg); |
| 70 | continue; |
| 71 | } |
| 72 | |
| 73 | std::ifstream in; |
| 74 | in.open(keyfile.c_str()); |
| 75 | if (!in.is_open()) |
| 76 | { |
| 77 | std::string msg = "Unable to open key file " + keyfile; |
| 78 | if (!isDryRun) |
| 79 | { |
| 80 | throw ConfigFile::Error(msg); |
| 81 | } |
| 82 | aggregateErrors(dryRunErrors, msg); |
| 83 | continue; |
| 84 | } |
| 85 | |
| 86 | shared_ptr<ndn::IdentityCertificate> id; |
| 87 | try |
| 88 | { |
| 89 | id = ndn::io::load<ndn::IdentityCertificate>(in); |
| 90 | } |
| 91 | catch(const std::runtime_error& error) |
| 92 | { |
| 93 | std::string msg = "Malformed key file " + keyfile; |
| 94 | if (!isDryRun) |
| 95 | { |
| 96 | throw ConfigFile::Error(msg); |
| 97 | } |
| 98 | aggregateErrors(dryRunErrors, msg); |
| 99 | continue; |
| 100 | } |
| 101 | |
| 102 | in.close(); |
| 103 | |
| 104 | const ConfigSection* privileges = 0; |
| 105 | |
| 106 | try |
| 107 | { |
| 108 | privileges = &authIt->second.get_child("privileges"); |
| 109 | } |
| 110 | catch (const std::runtime_error& error) |
| 111 | { |
| 112 | std::string msg = "No privileges section found for key file " + |
| 113 | keyfile + " (" + id->getPublicKeyName().toUri() + ")"; |
| 114 | if (!isDryRun) |
| 115 | { |
| 116 | throw ConfigFile::Error(msg); |
| 117 | } |
| 118 | aggregateErrors(dryRunErrors, msg); |
| 119 | continue; |
| 120 | } |
| 121 | |
| 122 | if (privileges->begin() == privileges->end()) |
| 123 | { |
| 124 | NFD_LOG_WARN("No privileges specified for key file " << keyfile + " (" << id->getPublicKeyName().toUri() << ")"); |
| 125 | } |
| 126 | |
| 127 | ConfigSection::const_iterator privIt; |
| 128 | for (privIt = privileges->begin(); privIt != privileges->end(); privIt++) |
| 129 | { |
| 130 | const std::string& privilegeName = privIt->first; |
| 131 | if (m_supportedPrivileges.find(privilegeName) != m_supportedPrivileges.end()) |
| 132 | { |
| 133 | NFD_LOG_INFO("Giving privilege \"" << privilegeName |
| 134 | << "\" to key " << id->getPublicKeyName()); |
| 135 | if (!isDryRun) |
| 136 | { |
| 137 | const std::string regex = "^<localhost><nfd><" + privilegeName + ">"; |
| 138 | m_validator.addInterestRule(regex, *id); |
| 139 | } |
| 140 | } |
| 141 | else |
| 142 | { |
| 143 | // Invalid configuration |
| 144 | std::string msg = "Invalid privilege \"" + privilegeName + "\" for key file " + |
| 145 | keyfile + " (" + id->getPublicKeyName().toUri() + ")"; |
| 146 | if (!isDryRun) |
| 147 | { |
| 148 | throw ConfigFile::Error(msg); |
| 149 | } |
| 150 | aggregateErrors(dryRunErrors, msg); |
| 151 | } |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | if (!dryRunErrors.str().empty()) |
| 156 | { |
| 157 | throw ConfigFile::Error(dryRunErrors.str()); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | void |
| 162 | CommandValidator::addSupportedPrivilege(const std::string& privilege) |
| 163 | { |
| 164 | if (m_supportedPrivileges.find(privilege) != m_supportedPrivileges.end()) |
| 165 | { |
| 166 | throw CommandValidator::Error("Duplicated privivilege: " + privilege); |
| 167 | } |
| 168 | m_supportedPrivileges.insert(privilege); |
| 169 | } |
| 170 | |
| 171 | } // namespace nfd |
| 172 | |