diff options
Diffstat (limited to 'parser/parser.c')
| -rw-r--r-- | parser/parser.c | 106 |
1 files changed, 81 insertions, 25 deletions
diff --git a/parser/parser.c b/parser/parser.c index 45026e5143..1f1034add3 100644 --- a/parser/parser.c +++ b/parser/parser.c @@ -1,10 +1,11 @@ // SPDX-License-Identifier: GPL-3.0-or-later #include "parser.h" +#include "collectors/plugins.d/pluginsd_parser.h" -static inline int find_keyword(char *str, char *keyword, int max_size, int (*custom_isspace)(char)) +inline int find_first_keyword(const char *str, char *keyword, int max_size, int (*custom_isspace)(char)) { - char *s = str, *keyword_start; + const char *s = str, *keyword_start; while (unlikely(custom_isspace(*s))) s++; keyword_start = s; @@ -28,7 +29,7 @@ static inline int find_keyword(char *str, char *keyword, int max_size, int (*cus * */ -PARSER *parser_init(RRDHOST *host, void *user, void *input, PARSER_INPUT_TYPE flags) +PARSER *parser_init(RRDHOST *host, void *user, void *input, void *output, PARSER_INPUT_TYPE flags) { PARSER *parser; @@ -36,9 +37,11 @@ PARSER *parser_init(RRDHOST *host, void *user, void *input, PARSER_INPUT_TYPE fl parser->plugins_action = callocz(1, sizeof(PLUGINSD_ACTION)); parser->user = user; parser->input = input; + parser->output = output; parser->flags = flags; parser->host = host; parser->worker_job_next_id = WORKER_PARSER_FIRST_JOB; + inflight_functions_init(parser); #ifdef ENABLE_HTTPS parser->bytesleft = 0; @@ -46,18 +49,34 @@ PARSER *parser_init(RRDHOST *host, void *user, void *input, PARSER_INPUT_TYPE fl #endif if (unlikely(!(flags & PARSER_NO_PARSE_INIT))) { - parser_add_keyword(parser, PLUGINSD_KEYWORD_FLUSH, pluginsd_flush); - parser_add_keyword(parser, PLUGINSD_KEYWORD_CHART, pluginsd_chart); - parser_add_keyword(parser, PLUGINSD_KEYWORD_DIMENSION, pluginsd_dimension); - parser_add_keyword(parser, PLUGINSD_KEYWORD_DISABLE, pluginsd_disable); - parser_add_keyword(parser, PLUGINSD_KEYWORD_VARIABLE, pluginsd_variable); - parser_add_keyword(parser, PLUGINSD_KEYWORD_LABEL, pluginsd_label); - parser_add_keyword(parser, PLUGINSD_KEYWORD_OVERWRITE, pluginsd_overwrite); - parser_add_keyword(parser, PLUGINSD_KEYWORD_END, pluginsd_end); - parser_add_keyword(parser, "CLABEL_COMMIT", pluginsd_clabel_commit); - parser_add_keyword(parser, "CLABEL", pluginsd_clabel); - parser_add_keyword(parser, PLUGINSD_KEYWORD_BEGIN, pluginsd_begin); - parser_add_keyword(parser, "SET", pluginsd_set); + parser_add_keyword(parser, PLUGINSD_KEYWORD_FLUSH, pluginsd_flush); + parser_add_keyword(parser, PLUGINSD_KEYWORD_CHART, pluginsd_chart); + parser_add_keyword(parser, PLUGINSD_KEYWORD_DIMENSION, pluginsd_dimension); + parser_add_keyword(parser, PLUGINSD_KEYWORD_DISABLE, pluginsd_disable); + parser_add_keyword(parser, PLUGINSD_KEYWORD_VARIABLE, pluginsd_variable); + parser_add_keyword(parser, PLUGINSD_KEYWORD_LABEL, pluginsd_label); + parser_add_keyword(parser, PLUGINSD_KEYWORD_OVERWRITE, pluginsd_overwrite); + parser_add_keyword(parser, PLUGINSD_KEYWORD_END, pluginsd_end); + parser_add_keyword(parser, PLUGINSD_KEYWORD_CLABEL_COMMIT, pluginsd_clabel_commit); + parser_add_keyword(parser, PLUGINSD_KEYWORD_CLABEL, pluginsd_clabel); + parser_add_keyword(parser, PLUGINSD_KEYWORD_BEGIN, pluginsd_begin); + parser_add_keyword(parser, PLUGINSD_KEYWORD_SET, pluginsd_set); + parser_add_keyword(parser, PLUGINSD_KEYWORD_FUNCTION, pluginsd_function); + parser_add_keyword(parser, PLUGINSD_KEYWORD_FUNCTION_RESULT_BEGIN, pluginsd_function_result_begin); + //parser_add_keyword(parser, PLUGINSD_KEYWORD_GAPS_REQUEST, pluginsd_gaps_request); + } + + if(unlikely(!(flags & PARSER_NO_ACTION_INIT))) { + parser->plugins_action->begin_action = &pluginsd_begin_action; + parser->plugins_action->flush_action = &pluginsd_flush_action; + parser->plugins_action->end_action = &pluginsd_end_action; + parser->plugins_action->disable_action = &pluginsd_disable_action; + parser->plugins_action->variable_action = &pluginsd_variable_action; + parser->plugins_action->dimension_action = &pluginsd_dimension_action; + parser->plugins_action->label_action = &pluginsd_label_action; + parser->plugins_action->overwrite_action = &pluginsd_overwrite_action; + parser->plugins_action->chart_action = &pluginsd_chart_action; + parser->plugins_action->set_action = &pluginsd_set_action; } return parser; @@ -155,6 +174,8 @@ void parser_destroy(PARSER *parser) if (unlikely(!parser)) return; + dictionary_destroy(parser->inflight.functions); + PARSER_KEYWORD *tmp_keyword, *tmp_keyword_next; PARSER_DATA *tmp_parser_data, *tmp_parser_data_next; @@ -237,32 +258,65 @@ int parser_next(PARSER *parser) inline int parser_action(PARSER *parser, char *input) { - PARSER_RC rc = PARSER_RC_OK; + PARSER_RC rc = PARSER_RC_OK; char *words[PLUGINSD_MAX_WORDS] = { NULL }; char command[PLUGINSD_LINE_MAX + 1]; keyword_function action_function; keyword_function *action_function_list = NULL; - if (unlikely(!parser)) + if (unlikely(!parser)) { + internal_error(true, "parser is NULL"); return 1; + } + parser->recover_location[0] = 0x0; // if not direct input check if we have reprocessed this if (unlikely(!input && parser->flags & PARSER_INPUT_PROCESSED)) return 0; - PARSER_KEYWORD *tmp_keyword = parser->keyword; + PARSER_KEYWORD *tmp_keyword = parser->keyword; if (unlikely(!tmp_keyword)) { + internal_error(true, "called without a keyword"); return 1; } if (unlikely(!input)) input = parser->buffer; - if (unlikely(!find_keyword(input, command, PLUGINSD_LINE_MAX, pluginsd_space))) + if(unlikely(parser->flags & PARSER_DEFER_UNTIL_KEYWORD)) { + bool has_keyword = find_first_keyword(input, command, PLUGINSD_LINE_MAX, pluginsd_space); + + if(!has_keyword || strcmp(command, parser->defer.end_keyword) != 0) { + if(parser->defer.response) { + buffer_strcat(parser->defer.response, input); + if(buffer_strlen(parser->defer.response) > 10 * 1024 * 1024) { + // more than 10MB of data + // a bad plugin that did not send the end_keyword + internal_error(true, "Deferred response is too big (%zu bytes). Stopping this plugin.", buffer_strlen(parser->defer.response)); + return 1; + } + } + return 0; + } + else { + // call the action + parser->defer.action(parser, parser->defer.action_data); + + // empty everything + parser->defer.action = NULL; + parser->defer.action_data = NULL; + parser->defer.end_keyword = NULL; + parser->defer.response = NULL; + parser->flags &= ~PARSER_DEFER_UNTIL_KEYWORD; + } + return 0; + } + + if (unlikely(!find_first_keyword(input, command, PLUGINSD_LINE_MAX, pluginsd_space))) return 0; - if ((parser->flags & PARSER_INPUT_ORIGINAL) == PARSER_INPUT_ORIGINAL) + if ((parser->flags & PARSER_INPUT_KEEP_ORIGINAL) == PARSER_INPUT_KEEP_ORIGINAL) pluginsd_split_words(input, words, PLUGINSD_MAX_WORDS, parser->recover_input, parser->recover_location, PARSER_MAX_RECOVER_KEYWORDS); else pluginsd_split_words(input, words, PLUGINSD_MAX_WORDS, NULL, NULL, 0); @@ -285,16 +339,17 @@ inline int parser_action(PARSER *parser, char *input) rc = parser->unknown_function(words, parser->user, NULL); else rc = PARSER_RC_ERROR; -#ifdef NETDATA_INTERNAL_CHECKS - error("Unknown keyword [%s]", input); -#endif + + internal_error(rc != PARSER_RC_OK, "Unknown keyword [%s]", input); } else { worker_is_busy(worker_job_id); while ((action_function = *action_function_list) != NULL) { rc = action_function(words, parser->user, parser->plugins_action); - if (unlikely(rc == PARSER_RC_ERROR || rc == PARSER_RC_STOP)) - break; + if (unlikely(rc == PARSER_RC_ERROR || rc == PARSER_RC_STOP)) { + internal_error(true, "action_function() failed with rc = %u", rc); + break; + } action_function_list++; } worker_is_idle(); @@ -303,6 +358,7 @@ inline int parser_action(PARSER *parser, char *input) if (likely(input == parser->buffer)) parser->flags |= PARSER_INPUT_PROCESSED; + internal_error(rc == PARSER_RC_ERROR, "parser_action() failed."); return (rc == PARSER_RC_ERROR); } |