Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 1 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */ |
| 2 | /** |
| 3 | * Copyright (C) 2014 University of Arizona. |
| 4 | * |
| 5 | * GNU 3.0 License, see the LICENSE file for more information |
| 6 | * |
| 7 | * Author: Jerald Paul Abraham <jeraldabraham@email.arizona.edu> |
| 8 | */ |
| 9 | |
| 10 | #include <sstream> |
| 11 | #include <boost/asio.hpp> |
| 12 | #include <boost/filesystem.hpp> |
| 13 | |
| 14 | #include <ndn-cpp-dev/face.hpp> |
| 15 | #include <ndn-cpp-dev/security/key-chain.hpp> |
| 16 | |
| 17 | #include "logger.hpp" |
| 18 | |
| 19 | namespace ndn { |
| 20 | |
| 21 | class NdnTrafficServer |
| 22 | { |
| 23 | public: |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 24 | NdnTrafficServer(char* programName) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 25 | : m_logger("NDNTrafficServer") |
| 26 | , ioService_(new boost::asio::io_service) |
| 27 | , face_(ioService_) |
| 28 | , keyChain_() |
| 29 | { |
| 30 | std::srand(std::time(0)); |
| 31 | instanceId_ = toString(std::rand()); |
| 32 | programName_ = programName; |
| 33 | contentDelayTime_ = getDefaultContentDelayTime(); |
| 34 | totalRegistrationsFailed_ = 0; |
| 35 | configurationFile_ = ""; |
| 36 | totalInterestReceived_ = 0; |
| 37 | } |
| 38 | |
| 39 | class DataTrafficConfiguration |
| 40 | { |
| 41 | public: |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 42 | DataTrafficConfiguration() |
| 43 | { |
| 44 | name = ""; |
| 45 | contentType = -1; |
| 46 | freshnessPeriod = -1; |
| 47 | contentBytes = -1; |
| 48 | content = ""; |
| 49 | totalInterestReceived = 0; |
| 50 | } |
| 51 | |
| 52 | void |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 53 | printTrafficConfiguration(Logger& logger) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 54 | { |
| 55 | std::string detail; |
| 56 | detail = ""; |
| 57 | if (name != "") |
| 58 | detail += "Name="+name+", "; |
| 59 | if (contentType >= 0) |
| 60 | detail += "ContentType="+toString(contentType)+", "; |
| 61 | if (freshnessPeriod >= 0) |
| 62 | detail += "FreshnessPeriod="+toString(freshnessPeriod)+", "; |
| 63 | if (contentBytes >= 0) |
| 64 | detail += "ContentBytes="+toString(contentBytes)+", "; |
| 65 | if (content != "") |
| 66 | detail += "Content="+content+", "; |
| 67 | if (detail.length() >= 2) |
| 68 | detail = detail.substr(0, detail.length()-2); |
| 69 | logger.log(detail, false, false); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | bool |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 74 | extractParameterValue(const std::string& detail, |
| 75 | std::string& parameter, std::string& value) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 76 | { |
| 77 | int i; |
| 78 | std::string allowedCharacters = ":/+._-%"; |
| 79 | parameter = ""; |
| 80 | value = ""; |
| 81 | i = 0; |
| 82 | while (detail[i] != '=' && i < detail.length()) |
| 83 | { |
| 84 | parameter += detail[i]; |
| 85 | i++; |
| 86 | } |
| 87 | if (i == detail.length()) |
| 88 | return false; |
| 89 | i++; |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 90 | while ((std::isalnum(detail[i]) || |
| 91 | allowedCharacters.find(detail[i]) != std::string::npos) && |
| 92 | i < detail.length()) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 93 | { |
| 94 | value += detail[i]; |
| 95 | i++; |
| 96 | } |
| 97 | if(parameter == "" || value == "") |
| 98 | return false; |
| 99 | return true; |
| 100 | } |
| 101 | |
| 102 | bool |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 103 | processConfigurationDetail(const std::string& detail, |
| 104 | Logger& logger, int lineNumber) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 105 | { |
| 106 | std::string parameter, value; |
| 107 | if (extractParameterValue(detail, parameter, value)) |
| 108 | { |
| 109 | if (parameter == "Name") |
| 110 | name = value; |
| 111 | else if (parameter == "ContentType") |
| 112 | contentType = toInteger(value); |
| 113 | else if (parameter == "FreshnessPeriod") |
| 114 | freshnessPeriod = toInteger(value); |
| 115 | else if (parameter == "ContentBytes") |
| 116 | contentBytes = toInteger(value); |
| 117 | else if (parameter == "Content") |
| 118 | content = value; |
| 119 | else |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 120 | logger.log("Line "+toString(lineNumber)+ |
| 121 | " \t- Invalid Parameter='"+parameter+"'", false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 122 | } |
| 123 | else |
| 124 | { |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 125 | logger.log("Line "+toString(lineNumber)+ |
| 126 | " \t- Improper Traffic Configuration Line- "+detail, false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 127 | return false; |
| 128 | } |
| 129 | return true; |
| 130 | } |
| 131 | |
| 132 | bool |
| 133 | checkTrafficDetailCorrectness() |
| 134 | { |
| 135 | return true; |
| 136 | } |
| 137 | |
| 138 | std::string name; |
| 139 | int contentType; |
| 140 | int freshnessPeriod; |
| 141 | int contentBytes; |
| 142 | std::string content; |
| 143 | int totalInterestReceived; |
| 144 | |
| 145 | }; |
| 146 | |
| 147 | std::string |
| 148 | getDefaultContent() |
| 149 | { |
| 150 | return ""; |
| 151 | } |
| 152 | |
| 153 | static std::string |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 154 | toString(int integerValue) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 155 | { |
| 156 | std::stringstream stream; |
| 157 | stream << integerValue; |
| 158 | return stream.str(); |
| 159 | } |
| 160 | |
| 161 | static int |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 162 | toInteger(std::string stringValue) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 163 | { |
| 164 | int integerValue; |
| 165 | std::stringstream stream(stringValue); |
| 166 | stream >> integerValue; |
| 167 | return integerValue; |
| 168 | } |
| 169 | |
| 170 | void |
| 171 | usage() |
| 172 | { |
| 173 | |
| 174 | std::cout << "\nUsage: " << programName_ << " [options] <Traffic_Configuration_File>\n" |
| 175 | "Respond to Interest as per provided Traffic Configuration File\n" |
| 176 | "Multiple Prefixes can be configured for handling.\n" |
| 177 | "Set environment variable NDN_TRAFFIC_LOGFOLDER for redirecting output to a log.\n" |
| 178 | " [-d interval] - set delay before responding to interest in milliseconds (minimum " |
| 179 | << getDefaultContentDelayTime() << " milliseconds)\n" |
| 180 | " [-h] - print help and exit\n\n"; |
| 181 | exit(1); |
| 182 | |
| 183 | } |
| 184 | |
| 185 | int |
| 186 | getDefaultContentDelayTime() |
| 187 | { |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | void |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 192 | setContentDelayTime(int contentDelayTime) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 193 | { |
| 194 | if (contentDelayTime < 0) |
| 195 | usage(); |
| 196 | contentDelayTime_ = contentDelayTime; |
| 197 | } |
| 198 | |
| 199 | void |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 200 | setConfigurationFile(char* configurationFile) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 201 | { |
| 202 | configurationFile_ = configurationFile; |
| 203 | } |
| 204 | |
| 205 | void |
| 206 | signalHandler() |
| 207 | { |
| 208 | m_logger.shutdownLogger(); |
| 209 | face_.shutdown(); |
| 210 | ioService_.reset(); |
| 211 | logStatistics(); |
| 212 | exit(1); |
| 213 | } |
| 214 | |
| 215 | void |
| 216 | logStatistics() |
| 217 | { |
| 218 | int patternId; |
| 219 | m_logger.log("\n\n== Interest Traffic Report ==\n", false, true); |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 220 | m_logger.log("Total Traffic Pattern Types = " + |
| 221 | toString((int)trafficPattern_.size()), false, true); |
| 222 | m_logger.log("Total Interests Received = " + |
| 223 | toString(totalInterestReceived_), false, true); |
| 224 | |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 225 | for (patternId=0; patternId<trafficPattern_.size(); patternId++) |
| 226 | { |
| 227 | m_logger.log("\nTraffic Pattern Type #"+toString(patternId+1), false, true); |
| 228 | trafficPattern_[patternId].printTrafficConfiguration(m_logger); |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 229 | m_logger.log("Total Interests Received = " + |
| 230 | toString(trafficPattern_[patternId].totalInterestReceived)+"\n", false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 231 | } |
| 232 | } |
| 233 | |
| 234 | bool |
| 235 | checkTrafficPatternCorrectness() |
| 236 | { |
| 237 | return true; |
| 238 | } |
| 239 | |
| 240 | void |
| 241 | analyzeConfigurationFile() |
| 242 | { |
| 243 | int patternId; |
| 244 | int lineNumber; |
| 245 | bool skipLine; |
| 246 | std::string patternLine; |
| 247 | std::ifstream patternFile; |
| 248 | m_logger.log("Analyzing Traffic Configuration File: " + configurationFile_, true, true); |
| 249 | patternFile.open(configurationFile_.c_str()); |
| 250 | if (patternFile.is_open()) |
| 251 | { |
| 252 | patternId = 0; |
| 253 | lineNumber = 0; |
| 254 | while (getline(patternFile, patternLine)) |
| 255 | { |
| 256 | lineNumber++; |
| 257 | if (std::isalpha(patternLine[0])) |
| 258 | { |
| 259 | DataTrafficConfiguration dataData; |
| 260 | skipLine = false; |
| 261 | patternId++; |
| 262 | if (dataData.processConfigurationDetail(patternLine, m_logger, lineNumber)) |
| 263 | { |
| 264 | while (getline(patternFile, patternLine) && std::isalpha(patternLine[0])) |
| 265 | { |
| 266 | lineNumber++; |
| 267 | if (!dataData.processConfigurationDetail(patternLine, m_logger, lineNumber)) |
| 268 | { |
| 269 | skipLine = true; |
| 270 | break; |
| 271 | } |
| 272 | } |
| 273 | lineNumber++; |
| 274 | } |
| 275 | else |
| 276 | skipLine = true; |
| 277 | if( !skipLine ) |
| 278 | { |
| 279 | if (dataData.checkTrafficDetailCorrectness()) |
| 280 | trafficPattern_.push_back(dataData); |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | patternFile.close(); |
| 285 | if (!checkTrafficPatternCorrectness()) |
| 286 | { |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 287 | m_logger.log("ERROR - Traffic Configuration Provided Is Not Proper- " + |
| 288 | configurationFile_, false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 289 | m_logger.shutdownLogger(); |
| 290 | exit(1); |
| 291 | } |
| 292 | m_logger.log("Traffic Configuration File Processing Completed\n", true, false); |
| 293 | for (patternId = 0; patternId < trafficPattern_.size(); patternId++) |
| 294 | { |
| 295 | m_logger.log("Traffic Pattern Type #"+toString(patternId+1), false, false); |
| 296 | trafficPattern_[patternId].printTrafficConfiguration(m_logger); |
| 297 | m_logger.log("", false, false); |
| 298 | } |
| 299 | } |
| 300 | else |
| 301 | { |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 302 | m_logger.log("ERROR - Unable To Open Traffic Configuration File: " + |
| 303 | configurationFile_, false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 304 | m_logger.shutdownLogger(); |
| 305 | exit(1); |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | void |
| 310 | initializeTrafficConfiguration() |
| 311 | { |
| 312 | if (boost::filesystem::exists(boost::filesystem::path(configurationFile_))) |
| 313 | { |
| 314 | if(boost::filesystem::is_regular_file(boost::filesystem::path(configurationFile_))) |
| 315 | { |
| 316 | analyzeConfigurationFile(); |
| 317 | } |
| 318 | else |
| 319 | { |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 320 | m_logger.log("ERROR - Traffic Configuration File Is Not A Regular File: " + |
| 321 | configurationFile_, false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 322 | m_logger.shutdownLogger(); |
| 323 | exit(1); |
| 324 | } |
| 325 | } |
| 326 | else |
| 327 | { |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 328 | m_logger.log("ERROR - Traffic Configuration File Does Not Exist: " + |
| 329 | configurationFile_, false, true); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 330 | m_logger.shutdownLogger(); |
| 331 | exit(1); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | static std::string |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 336 | getRandomByteString(int randomSize) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 337 | { |
| 338 | int i; |
| 339 | std::string characterSet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw0123456789"; |
| 340 | std::string randomData; |
| 341 | for (i=0; i<randomSize; i++) |
| 342 | randomData += characterSet[std::rand() % characterSet.length()]; |
| 343 | return randomData; |
| 344 | } |
| 345 | |
| 346 | void |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 347 | onInterest(const Name& name, const Interest& interest, int patternId) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 348 | { |
| 349 | std::string content, logLine; |
| 350 | content = ""; |
| 351 | logLine = ""; |
| 352 | |
| 353 | Data data(interest.getName()); |
| 354 | if (trafficPattern_[patternId].contentType >= 0) |
| 355 | data.setContentType(trafficPattern_[patternId].contentType); |
| 356 | if (trafficPattern_[patternId].freshnessPeriod >= 0) |
jeraldabraham | 5f61ec2 | 2014-03-20 10:41:53 -0700 | [diff] [blame] | 357 | data.setFreshnessPeriod(time::milliseconds(trafficPattern_[patternId].freshnessPeriod)); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 358 | if (trafficPattern_[patternId].contentBytes >= 0) |
| 359 | content = getRandomByteString(trafficPattern_[patternId].contentBytes); |
| 360 | if (trafficPattern_[patternId].content != "") |
| 361 | content = trafficPattern_[patternId].content; |
| 362 | data.setContent((const uint8_t*)content.c_str(), content.length()); |
| 363 | keyChain_.sign(data); |
| 364 | totalInterestReceived_++; |
| 365 | trafficPattern_[patternId].totalInterestReceived++; |
| 366 | logLine += "Interest Received - PatternType="+toString(patternId+1); |
| 367 | logLine += ", GlobalID="+toString(totalInterestReceived_); |
| 368 | logLine += ", LocalID="+toString(trafficPattern_[patternId].totalInterestReceived); |
| 369 | logLine += ", Name="+trafficPattern_[patternId].name; |
| 370 | m_logger.log(logLine, true, false); |
| 371 | usleep(contentDelayTime_*1000); |
| 372 | face_.put(data); |
| 373 | } |
| 374 | |
| 375 | void |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 376 | onRegisterFailed(const ndn::Name& prefix, const std::string& reason, int patternId) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 377 | { |
| 378 | std::string logLine; |
| 379 | logLine = ""; |
| 380 | logLine += "Prefix Registration Failed - PatternType="+toString(patternId+1); |
| 381 | logLine += ", Name="+trafficPattern_[patternId].name; |
| 382 | m_logger.log(logLine, true, true); |
| 383 | totalRegistrationsFailed_++; |
| 384 | if (totalRegistrationsFailed_ == trafficPattern_.size()) |
| 385 | signalHandler(); |
| 386 | } |
| 387 | |
| 388 | void |
| 389 | initialize() |
| 390 | { |
| 391 | boost::asio::signal_set signalSet(*ioService_, SIGINT, SIGTERM); |
| 392 | signalSet.async_wait(boost::bind(&NdnTrafficServer::signalHandler, this)); |
| 393 | m_logger.initializeLog(instanceId_); |
| 394 | initializeTrafficConfiguration(); |
| 395 | |
| 396 | int patternId; |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 397 | for (patternId=0; patternId<trafficPattern_.size(); patternId++) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 398 | { |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 399 | face_.setInterestFilter(trafficPattern_[patternId].name, |
| 400 | bind(&NdnTrafficServer::onInterest, |
| 401 | this, _1, _2, |
| 402 | patternId), |
| 403 | bind(&NdnTrafficServer::onRegisterFailed, |
| 404 | this, _1, _2, |
| 405 | patternId)); |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | try { |
| 409 | face_.processEvents(); |
| 410 | } |
| 411 | catch(std::exception &e) { |
| 412 | m_logger.log("ERROR: "+(std::string)e.what(), true, true); |
| 413 | m_logger.shutdownLogger(); |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | private: |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 418 | KeyChain keyChain_; |
| 419 | std::string programName_; |
| 420 | std::string instanceId_; |
| 421 | int contentDelayTime_; |
| 422 | int totalRegistrationsFailed_; |
| 423 | Logger m_logger; |
| 424 | std::string configurationFile_; |
| 425 | ptr_lib::shared_ptr<boost::asio::io_service> ioService_; |
| 426 | Face face_; |
| 427 | std::vector<DataTrafficConfiguration> trafficPattern_; |
| 428 | int totalInterestReceived_; |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 429 | }; |
| 430 | |
| 431 | } // namespace ndn |
| 432 | |
Alexander Afanasyev | fda32a3 | 2014-03-20 10:50:00 -0700 | [diff] [blame^] | 433 | int |
| 434 | main(int argc, char* argv[]) |
Alexander Afanasyev | a8f2a92 | 2014-02-26 14:21:56 -0800 | [diff] [blame] | 435 | { |
| 436 | int option; |
| 437 | ndn::NdnTrafficServer ndnTrafficServer (argv[0]); |
| 438 | while ((option = getopt(argc, argv, "hd:")) != -1) { |
| 439 | switch (option) { |
| 440 | case 'h' : |
| 441 | ndnTrafficServer.usage(); |
| 442 | break; |
| 443 | case 'd' : |
| 444 | ndnTrafficServer.setContentDelayTime(atoi(optarg)); |
| 445 | break; |
| 446 | default : |
| 447 | ndnTrafficServer.usage(); |
| 448 | break; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | argc -= optind; |
| 453 | argv += optind; |
| 454 | |
| 455 | if (argv[0] == NULL) |
| 456 | ndnTrafficServer.usage(); |
| 457 | |
| 458 | ndnTrafficServer.setConfigurationFile(argv[0]); |
| 459 | ndnTrafficServer.initialize(); |
| 460 | |
| 461 | return 0; |
| 462 | } |