dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2009, 2010 Free Software Foundation, Inc. |
kurtis.heimerl | db70eb4 | 2012-12-16 06:06:32 +0000 | [diff] [blame] | 3 | * Copyright 2010 Kestrel Signal Processing, Inc. |
| 4 | * Copyright 2011, 2012 Range Networks, Inc. |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 5 | * |
| 6 | * This software is distributed under the terms of the GNU Affero Public License. |
| 7 | * See the COPYING file in the main directory for details. |
| 8 | * |
| 9 | * This use of this software may be subject to additional restrictions. |
| 10 | * See the LEGAL file in the main directory for details. |
| 11 | |
| 12 | This program is free software: you can redistribute it and/or modify |
| 13 | it under the terms of the GNU Affero General Public License as published by |
| 14 | the Free Software Foundation, either version 3 of the License, or |
| 15 | (at your option) any later version. |
| 16 | |
| 17 | This program is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU Affero General Public License for more details. |
| 21 | |
| 22 | You should have received a copy of the GNU Affero General Public License |
| 23 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 24 | |
| 25 | */ |
| 26 | |
| 27 | |
| 28 | #ifndef CONFIGURATION_H |
| 29 | #define CONFIGURATION_H |
| 30 | |
| 31 | |
| 32 | #include "sqlite3util.h" |
| 33 | |
| 34 | #include <assert.h> |
| 35 | #include <stdlib.h> |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 36 | #include <netinet/in.h> |
| 37 | #include <arpa/inet.h> |
| 38 | #include <regex.h> |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 39 | |
| 40 | #include <map> |
| 41 | #include <vector> |
| 42 | #include <string> |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 43 | #include <sstream> |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 44 | #include <iostream> |
| 45 | |
| 46 | #include <Threads.h> |
| 47 | #include <stdint.h> |
| 48 | |
| 49 | |
| 50 | /** A class for configuration file errors. */ |
| 51 | class ConfigurationTableError {}; |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 52 | extern char gCmdName[]; // Gotta be global, gotta be char*, gotta love it. |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 53 | |
| 54 | /** An exception thrown when a given config key isn't found. */ |
| 55 | class ConfigurationTableKeyNotFound : public ConfigurationTableError { |
| 56 | |
| 57 | private: |
| 58 | |
| 59 | std::string mKey; |
| 60 | |
| 61 | public: |
| 62 | |
| 63 | ConfigurationTableKeyNotFound(const std::string& wKey) |
| 64 | :mKey(wKey) |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 65 | { } |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 66 | |
| 67 | const std::string& key() const { return mKey; } |
| 68 | |
| 69 | }; |
| 70 | |
| 71 | |
| 72 | class ConfigurationRecord { |
| 73 | |
| 74 | private: |
| 75 | |
| 76 | std::string mValue; |
| 77 | long mNumber; |
| 78 | bool mDefined; |
| 79 | |
| 80 | public: |
| 81 | |
| 82 | ConfigurationRecord(bool wDefined=true): |
| 83 | mDefined(wDefined) |
| 84 | { } |
| 85 | |
| 86 | ConfigurationRecord(const std::string& wValue): |
| 87 | mValue(wValue), |
| 88 | mNumber(strtol(wValue.c_str(),NULL,0)), |
| 89 | mDefined(true) |
| 90 | { } |
| 91 | |
| 92 | ConfigurationRecord(const char* wValue): |
| 93 | mValue(std::string(wValue)), |
| 94 | mNumber(strtol(wValue,NULL,0)), |
| 95 | mDefined(true) |
| 96 | { } |
| 97 | |
| 98 | |
| 99 | const std::string& value() const { return mValue; } |
| 100 | long number() const { return mNumber; } |
| 101 | bool defined() const { return mDefined; } |
| 102 | |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 103 | float floatNumber() const; |
| 104 | |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 105 | }; |
| 106 | |
| 107 | |
| 108 | /** A string class that uses a hash function for comparison. */ |
| 109 | class HashString : public std::string { |
| 110 | |
| 111 | |
| 112 | protected: |
| 113 | |
| 114 | uint64_t mHash; |
| 115 | |
| 116 | void computeHash(); |
| 117 | |
| 118 | |
| 119 | public: |
| 120 | |
| 121 | HashString(const char* src) |
| 122 | :std::string(src) |
| 123 | { |
| 124 | computeHash(); |
| 125 | } |
| 126 | |
| 127 | HashString(const std::string& src) |
| 128 | :std::string(src) |
| 129 | { |
| 130 | computeHash(); |
| 131 | } |
| 132 | |
| 133 | HashString() |
| 134 | { |
| 135 | mHash=0; |
| 136 | } |
| 137 | |
| 138 | HashString& operator=(std::string& src) |
| 139 | { |
| 140 | std::string::operator=(src); |
| 141 | computeHash(); |
| 142 | return *this; |
| 143 | } |
| 144 | |
| 145 | HashString& operator=(const char* src) |
| 146 | { |
| 147 | std::string::operator=(src); |
| 148 | computeHash(); |
| 149 | return *this; |
| 150 | } |
| 151 | |
| 152 | bool operator==(const HashString& other) |
| 153 | { |
| 154 | return mHash==other.mHash; |
| 155 | } |
| 156 | |
| 157 | bool operator<(const HashString& other) |
| 158 | { |
| 159 | return mHash<other.mHash; |
| 160 | } |
| 161 | |
| 162 | bool operator>(const HashString& other) |
| 163 | { |
| 164 | return mHash<other.mHash; |
| 165 | } |
| 166 | |
| 167 | uint64_t hash() const { return mHash; } |
| 168 | |
| 169 | }; |
| 170 | |
| 171 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 172 | typedef std::map<std::string, ConfigurationRecord> ConfigurationRecordMap; |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 173 | typedef std::map<HashString, ConfigurationRecord> ConfigurationMap; |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 174 | class ConfigurationKey; |
| 175 | typedef std::map<std::string, ConfigurationKey> ConfigurationKeyMap; |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 176 | |
| 177 | /** |
| 178 | A class for maintaining a configuration key-value table, |
| 179 | based on sqlite3 and a local map-based cache. |
| 180 | Thread-safe, too. |
| 181 | */ |
| 182 | class ConfigurationTable { |
| 183 | |
| 184 | private: |
| 185 | |
| 186 | sqlite3* mDB; ///< database connection |
| 187 | ConfigurationMap mCache; ///< cache of recently access configuration values |
| 188 | mutable Mutex mLock; ///< control for multithreaded access to the cache |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 189 | std::vector<std::string> (*mCrossCheck)(const std::string&); ///< cross check callback pointer |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 190 | |
| 191 | public: |
| 192 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 193 | ConfigurationKeyMap mSchema;///< definition of configuration default values and validation logic |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 194 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 195 | ConfigurationTable(const char* filename = ":memory:", const char *wCmdName = 0, ConfigurationKeyMap wSchema = ConfigurationKeyMap()); |
| 196 | |
| 197 | /** Generate an up-to-date example sql file for new installs. */ |
| 198 | std::string getDefaultSQL(const std::string& program, const std::string& version); |
| 199 | |
| 200 | /** Generate an up-to-date TeX snippet. */ |
| 201 | std::string getTeX(const std::string& program, const std::string& version); |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 202 | |
| 203 | /** Return true if the key is used in the table. */ |
| 204 | bool defines(const std::string& key); |
| 205 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 206 | /** Return true if the application's schema knows about this key. */ |
| 207 | bool keyDefinedInSchema(const std::string& name); |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 208 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 209 | /** Return true if the provided value validates correctly against the defined schema. */ |
| 210 | bool isValidValue(const std::string& name, const std::string& val); |
| 211 | |
| 212 | /** Return true if the provided value validates correctly against the defined schema. */ |
| 213 | bool isValidValue(const std::string& name, const int val) { std::stringstream ss; ss << val; return isValidValue(name, ss.str()); } |
| 214 | |
| 215 | /** Return a map of all similar keys in the defined schema. */ |
| 216 | ConfigurationKeyMap getSimilarKeys(const std::string& snippet); |
| 217 | |
| 218 | /** Return true if this key is identified as static. */ |
| 219 | bool isStatic(const std::string& key); |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 220 | |
| 221 | /** |
| 222 | Get a string parameter from the table. |
| 223 | Throw ConfigurationTableKeyNotFound if not found. |
| 224 | */ |
| 225 | std::string getStr(const std::string& key); |
| 226 | |
| 227 | |
| 228 | /** |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 229 | Get a boolean from the table. |
| 230 | Return false if NULL or 0, true otherwise. |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 231 | */ |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 232 | bool getBool(const std::string& key); |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 233 | |
| 234 | /** |
| 235 | Get a numeric parameter from the table. |
| 236 | Throw ConfigurationTableKeyNotFound if not found. |
| 237 | */ |
| 238 | long getNum(const std::string& key); |
| 239 | |
| 240 | /** |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 241 | Get a vector of strings from the table. |
| 242 | */ |
| 243 | std::vector<std::string> getVectorOfStrings(const std::string& key); |
| 244 | |
| 245 | /** |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 246 | Get a float from the table. |
| 247 | Throw ConfigurationTableKeyNotFound if not found. |
| 248 | */ |
| 249 | float getFloat(const std::string& key); |
| 250 | |
| 251 | /** |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 252 | Get a numeric vector from the table. |
| 253 | */ |
| 254 | std::vector<unsigned> getVector(const std::string& key); |
| 255 | |
| 256 | /** Get length of a vector */ |
| 257 | unsigned getVectorLength(const std::string &key) |
| 258 | { return getVector(key).size(); } |
| 259 | |
| 260 | /** Set or change a value in the table. */ |
| 261 | bool set(const std::string& key, const std::string& value); |
| 262 | |
| 263 | /** Set or change a value in the table. */ |
| 264 | bool set(const std::string& key, long value); |
| 265 | |
| 266 | /** Create an entry in the table, no value though. */ |
| 267 | bool set(const std::string& key); |
| 268 | |
| 269 | /** |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 270 | Remove an entry from the table. |
| 271 | Will not alter required values. |
| 272 | @param key The key of the item to be removed. |
| 273 | @return true if anything was actually removed. |
| 274 | */ |
| 275 | bool remove(const std::string& key); |
| 276 | |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 277 | /** Search the table, dumping to a stream. */ |
| 278 | void find(const std::string& pattern, std::ostream&) const; |
| 279 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 280 | /** Return all key/value pairs stored in the ConfigurationTable */ |
| 281 | ConfigurationRecordMap getAllPairs() const; |
| 282 | |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 283 | /** Define the callback to purge the cache whenever the database changes. */ |
| 284 | void setUpdateHook(void(*)(void *,int ,char const *,char const *,sqlite3_int64)); |
| 285 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 286 | /** Define the callback for cross checking. */ |
| 287 | void setCrossCheckHook(std::vector<std::string> (*wCrossCheck)(const std::string&)); |
| 288 | |
| 289 | /** Execute the application specific value cross checking logic. */ |
| 290 | std::vector<std::string> crossCheck(const std::string& key); |
| 291 | |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 292 | /** purege cache if it exceeds a certain age */ |
| 293 | void checkCacheAge(); |
| 294 | |
| 295 | /** Delete all records from the cache. */ |
| 296 | void purge(); |
| 297 | |
| 298 | |
| 299 | private: |
| 300 | |
| 301 | /** |
| 302 | Attempt to lookup a record, cache if needed. |
| 303 | Throw ConfigurationTableKeyNotFound if not found. |
| 304 | Caller should hold mLock because the returned reference points into the cache. |
| 305 | */ |
| 306 | const ConfigurationRecord& lookup(const std::string& key); |
| 307 | |
| 308 | }; |
| 309 | |
| 310 | |
kurtis.heimerl | bcf60a8 | 2012-10-26 06:25:56 +0000 | [diff] [blame] | 311 | typedef std::map<HashString, std::string> HashStringMap; |
| 312 | |
| 313 | class SimpleKeyValue { |
| 314 | |
| 315 | protected: |
| 316 | |
| 317 | HashStringMap mMap; |
| 318 | |
| 319 | public: |
| 320 | |
| 321 | /** Take a C string "A=B" and set map["A"]="B". */ |
| 322 | void addItem(const char*); |
| 323 | |
| 324 | /** Take a C string "A=B C=D E=F ..." and add all of the pairs to the map. */ |
| 325 | void addItems(const char*s); |
| 326 | |
| 327 | /** Return a reference to the string at map["key"]. */ |
| 328 | const char* get(const char*) const; |
| 329 | }; |
| 330 | |
| 331 | |
kurtis.heimerl | 5a87247 | 2013-05-31 21:47:25 +0000 | [diff] [blame] | 332 | class ConfigurationKey { |
| 333 | |
| 334 | public: |
| 335 | |
| 336 | enum VisibilityLevel |
| 337 | { |
| 338 | CUSTOMER, |
| 339 | CUSTOMERSITE, |
| 340 | CUSTOMERTUNE, |
| 341 | CUSTOMERWARN, |
| 342 | DEVELOPER, |
| 343 | FACTORY |
| 344 | }; |
| 345 | |
| 346 | enum Type |
| 347 | { |
| 348 | BOOLEAN, |
| 349 | CHOICE_OPT, |
| 350 | CHOICE, |
| 351 | CIDR_OPT, |
| 352 | CIDR, |
| 353 | FILEPATH_OPT, |
| 354 | FILEPATH, |
| 355 | IPADDRESS_OPT, |
| 356 | IPADDRESS, |
| 357 | IPANDPORT, |
| 358 | MIPADDRESS_OPT, |
| 359 | MIPADDRESS, |
| 360 | PORT_OPT, |
| 361 | PORT, |
| 362 | REGEX_OPT, |
| 363 | REGEX, |
| 364 | STRING_OPT, |
| 365 | STRING, |
| 366 | VALRANGE |
| 367 | }; |
| 368 | |
| 369 | private: |
| 370 | |
| 371 | std::string mName; |
| 372 | std::string mDefaultValue; |
| 373 | std::string mUnits; |
| 374 | VisibilityLevel mVisibility; |
| 375 | Type mType; |
| 376 | std::string mValidValues; |
| 377 | bool mIsStatic; |
| 378 | std::string mDescription; |
| 379 | |
| 380 | |
| 381 | public: |
| 382 | |
| 383 | ConfigurationKey(const std::string& wName, const std::string& wDefaultValue, const std::string& wUnits, const VisibilityLevel wVisibility, const Type wType, const std::string& wValidValues, bool wIsStatic, const std::string& wDescription): |
| 384 | mName(wName), |
| 385 | mDefaultValue(wDefaultValue), |
| 386 | mUnits(wUnits), |
| 387 | mVisibility(wVisibility), |
| 388 | mType(wType), |
| 389 | mValidValues(wValidValues), |
| 390 | mIsStatic(wIsStatic), |
| 391 | mDescription(wDescription) |
| 392 | { } |
| 393 | |
| 394 | ConfigurationKey() |
| 395 | { } |
| 396 | |
| 397 | const std::string& getName() const { return mName; } |
| 398 | const std::string& getDefaultValue() const { return mDefaultValue; } |
| 399 | void updateDefaultValue(const std::string& newValue) { mDefaultValue = newValue; } |
| 400 | void updateDefaultValue(const int newValue) { std::stringstream ss; ss << newValue; updateDefaultValue(ss.str()); } |
| 401 | const std::string& getUnits() const { return mUnits; } |
| 402 | const VisibilityLevel& getVisibility() const { return mVisibility; } |
| 403 | const Type& getType() const { return mType; } |
| 404 | const std::string& getValidValues() const { return mValidValues; } |
| 405 | bool isStatic() const { return mIsStatic; } |
| 406 | const std::string& getDescription() const { return mDescription; } |
| 407 | |
| 408 | static bool isValidIP(const std::string& ip); |
| 409 | static void getMinMaxStepping(const ConfigurationKey &key, std::string &min, std::string &max, std::string &stepping); |
| 410 | template<class T> static bool isInValRange(const ConfigurationKey &key, const std::string& val, const bool isInteger); |
| 411 | static const std::string visibilityLevelToString(const VisibilityLevel& visibility); |
| 412 | static const std::string typeToString(const ConfigurationKey::Type& type); |
| 413 | static void printKey(const ConfigurationKey &key, const std::string& currentValue, std::ostream& os); |
| 414 | static void printDescription(const ConfigurationKey &key, std::ostream& os); |
| 415 | static const std::string getARFCNsString(); |
| 416 | }; |
| 417 | |
dburgess | 82c46ff | 2011-10-07 02:40:51 +0000 | [diff] [blame] | 418 | |
| 419 | #endif |
| 420 | |
| 421 | |
| 422 | // vim: ts=4 sw=4 |