diff options
Diffstat (limited to 'hicn-light/src/hicn/config/configurationFile.c')
| -rw-r--r-- | hicn-light/src/hicn/config/configurationFile.c | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/hicn-light/src/hicn/config/configurationFile.c b/hicn-light/src/hicn/config/configurationFile.c deleted file mode 100644 index 5f9c9ce9d..000000000 --- a/hicn-light/src/hicn/config/configurationFile.c +++ /dev/null @@ -1,313 +0,0 @@ -/* - * Copyright (c) 2017-2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef _WIN32 -#include <unistd.h> -#endif -#include <ctype.h> -#include <errno.h> -#include <hicn/hicn-light/config.h> -#include <stdio.h> -#include <string.h> - -#include <parc/algol/parc_ArrayList.h> -#include <parc/algol/parc_List.h> -#include <parc/algol/parc_Memory.h> -#include <parc/algol/parc_Object.h> -#include <parc/assert/parc_Assert.h> -#include <hicn/config/configuration.h> -#include <hicn/config/configurationFile.h> -#include <hicn/config/controlRoot.h> -#include <hicn/config/controlState.h> - -struct configuration_file { - Forwarder *forwarder; - const char *filename; - FILE *fh; - - size_t linesRead; - - // our custom state machine. - ControlState *controlState; -}; - -/* - * Called by a command to dispatch the correct command - */ -struct iovec *_writeRead(ControlState *state, struct iovec *msg) { - ConfigurationFile *configFile = - (ConfigurationFile *)controlState_GetUserdata(state); - - parcAssertNotNull(msg, "Parameter msg must be non-null"); - struct iovec *response = configuration_DispatchCommand( - forwarder_GetConfiguration(configFile->forwarder), - ((header_control_message *)msg[0].iov_base)->commandID, msg, 0); - - return response; -} - -/** - * Removes leading whitespace (space + tab). - * - * If the string is all whitespace, the return value will point to the - * terminating '\0'. - * - * @param [in] str A null-terminated c-string - * - * @retval non-null A pointer in to string of the first non-whitespace - * - * - * Example: - * @code - * <#example#> - * @endcode - */ -static char *_stripLeadingWhitespace(char *str) { - while (isspace(*str)) { - str++; - } - return str; -} - -/** - * Removes trailing whitespace - * - * Inserts a NULL after the last non-whitespace character, modiyfing the input - * string. - * - * @param [in] str A null-terminated c-string - * - * @return non-null A pointer to the input string - * - * Example: - * @code - * { - * <#example#> - * } - * @endcode - */ -static char *_stripTrailingWhitespace(char *str) { - char *p = str + strlen(str) - 1; - while (p > str && isspace(*p)) { - p--; - } - - // cap it. If no whitespace, p+1 == str + strlen(str), so will overwrite the - // current null. If all whitespace p+1 == str+1. For an empty string, p+1 = - // str. - *(p + 1) = 0; - - // this does not catch the case where the entire string is whitespace - if (p == str && isspace(*p)) { - *p = 0; - } - - return str; -} - -/** - * Removed leading and trailing whitespace - * - * Modifies the input string (may add a NULL at the end). Will return - * a pointer to the first non-whitespace character or the terminating NULL. - * - * @param [in] str A null-terminated c-string - * - * @return non-null A pointer in to the input string - * - * Example: - * @code - * { - * <#example#> - * } - * @endcode - */ -static char *_trim(char *str) { - return _stripTrailingWhitespace(_stripLeadingWhitespace(str)); -} - -/** - * Parse a string in to a PARCList with one word per element - * - * The string passed will be modified by inserting NULLs after each token. - * - * @param [in] str A c-string (will be modified) - * - * @retval non-null A PARCList where each item is a single word - * - * Example: - * @code - * <#example#> - * @endcode - */ -static PARCList *_parseArgs(char *str) { - PARCList *list = - parcList(parcArrayList_Create(NULL), PARCArrayListAsPARCList); - - const char delimiters[] = " \t"; - - char *token; - token = strtok(str, delimiters); - while (token != NULL) { - if (strlen(token) > 0) { - parcList_Add(list, strdup(token)); - } - token = strtok(NULL, delimiters); - } - // while ((token = strsep(&str, delimiters)) != NULL) { - // parcList_Add(list, token); - // } - - return list; -} - -// ============================================================= - -static void _destroy(ConfigurationFile **configFilePtr) { - ConfigurationFile *configFile = *configFilePtr; - parcMemory_Deallocate((void **)&configFile->filename); - - if (configFile->fh != NULL) { - fclose(configFile->fh); - } - - controlState_Destroy(&configFile->controlState); -} - -parcObject_ExtendPARCObject(ConfigurationFile, _destroy, NULL, NULL, NULL, NULL, - NULL, NULL); - -parcObject_ImplementRelease(configurationFile, ConfigurationFile); - -ConfigurationFile *configurationFile_Create(Forwarder *forwarder, - const char *filename) { - parcAssertNotNull(forwarder, "Parameter hicn-fwd must be non-null"); - parcAssertNotNull(filename, "Parameter filename must be non-null"); - - ConfigurationFile *configFile = parcObject_CreateInstance(ConfigurationFile); - - if (configFile) { - configFile->linesRead = 0; - configFile->forwarder = forwarder; - configFile->filename = - parcMemory_StringDuplicate(filename, strlen(filename)); - parcAssertNotNull(configFile->filename, "Could not copy string '%s'", - filename); - - // setup the control state for the command parser: last parameter NULL - // because - // writeRead still not implemented from configuration file. - configFile->controlState = - controlState_Create(configFile, _writeRead, false, - SRV_CTRL_IP, SRV_CTRL_PORT); - - // we do not register Help commands - controlState_RegisterCommand(configFile->controlState, - controlRoot_Create(configFile->controlState)); - - // open the file and make sure we can read it - configFile->fh = fopen(configFile->filename, "r"); - - if (configFile->fh) { - if (logger_IsLoggable(forwarder_GetLogger(forwarder), - LoggerFacility_Config, PARCLogLevel_Debug)) { - logger_Log(forwarder_GetLogger(forwarder), LoggerFacility_Config, - PARCLogLevel_Debug, __func__, "Open config file %s", - configFile->filename); - } - } else { - if (logger_IsLoggable(forwarder_GetLogger(forwarder), - LoggerFacility_Config, PARCLogLevel_Error)) { - logger_Log(forwarder_GetLogger(forwarder), LoggerFacility_Config, - PARCLogLevel_Error, __func__, - "Could not open config file %s: (%d) %s", - configFile->filename, errno, strerror(errno)); - } - - // failure cleanup the object -- this nulls it so final return null be - // NULL - configurationFile_Release(&configFile); - } - } - return configFile; -} - -bool configurationFile_Process(ConfigurationFile *configFile) { - parcAssertNotNull(configFile, "Parameter configFile must be non-null"); - - // default to a "true" return value and only set to false if we encounter an - // error. - bool success = true; - -#define BUFFERLEN 2048 - char buffer[BUFFERLEN]; - - configFile->linesRead = 0; - - // always clear errors and fseek to start of file in case we get called - // multiple times. - clearerr(configFile->fh); - rewind(configFile->fh); - - while (success && fgets(buffer, BUFFERLEN, configFile->fh) != NULL) { - configFile->linesRead++; - - char *stripedBuffer = _trim(buffer); - if (strlen(stripedBuffer) > 0) { - if (stripedBuffer[0] != '#') { - // not empty and not a comment - - // _parseArgs will modify the string - char *copy = - parcMemory_StringDuplicate(stripedBuffer, strlen(stripedBuffer)); - PARCList *args = _parseArgs(copy); - CommandReturn result = - controlState_DispatchCommand(configFile->controlState, args); - - // we ignore EXIT from the configuration file - if (result == CommandReturn_Failure) { - if (logger_IsLoggable(forwarder_GetLogger(configFile->forwarder), - LoggerFacility_Config, PARCLogLevel_Error)) { - logger_Log(forwarder_GetLogger(configFile->forwarder), - LoggerFacility_Config, PARCLogLevel_Error, __func__, - "Error on input file %s line %d: %s", - configFile->filename, configFile->linesRead, - stripedBuffer); - } - success = false; - } - for(int i = 0; i < parcList_Size(args); i++){ - free(parcList_GetAtIndex(args, i)); - } - parcList_Release(&args); - parcMemory_Deallocate((void **)©); - } - } - } - - if (ferror(configFile->fh)) { - if (logger_IsLoggable(forwarder_GetLogger(configFile->forwarder), - LoggerFacility_Config, PARCLogLevel_Error)) { - logger_Log(forwarder_GetLogger(configFile->forwarder), - LoggerFacility_Config, PARCLogLevel_Error, __func__, - "Error on input file %s line %d: (%d) %s", - configFile->filename, configFile->linesRead, errno, - strerror(errno)); - } - success = false; - } - - return success; -} |