Merging upstream version 1.39.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 391 deletions

diff --git a/parser/parser.c b/parser/parser.c
deleted file mode 100644
index c687c7af4..000000000
--- a/parser/parser.c
+++ /dev/null
@@ -1,391 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "parser.h"
-#include "collectors/plugins.d/pluginsd_parser.h"
-
-inline int find_first_keyword(const char *str, char *keyword, int max_size, int (*custom_isspace)(char))
-{
-    const char *s = str, *keyword_start;
-
-    while (unlikely(custom_isspace(*s))) s++;
-    keyword_start = s;
-
-    while (likely(*s && !custom_isspace(*s)) && max_size > 1) {
-        *keyword++ = *s++;
-        max_size--;
-    }
-    *keyword = '\0';
-    return max_size == 0 ? 0 : (int) (s - keyword_start);
-}
-
-/*
- * Initialize a parser 
- *     user   : as defined by the user, will be shared across calls
- *     input  : main input stream (auto detect stream -- file, socket, pipe)
- *     buffer : This is the buffer to be used (if null a buffer of size will be allocated)
- *     size   : buffer size either passed or will be allocated
- *              If the buffer is auto allocated, it will auto freed when the parser is destroyed
- *     
- * 
- */
-
-PARSER *parser_init(RRDHOST *host, void *user, FILE *fp_input, FILE *fp_output, int fd, PARSER_INPUT_TYPE flags, void *ssl __maybe_unused)
-{
-    PARSER *parser;
-
-    parser = callocz(1, sizeof(*parser));
-    parser->user = user;
-    parser->fd = fd;
-    parser->fp_input = fp_input;
-    parser->fp_output = fp_output;
-#ifdef ENABLE_HTTPS
-    parser->ssl_output = ssl;
-#endif
-    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;
-    parser->readfrom = NULL;
-#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_CHART_DEFINITION_END, pluginsd_chart_definition_end);
-        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_REPLAY_BEGIN,        pluginsd_replay_rrdset_begin);
-        parser_add_keyword(parser, PLUGINSD_KEYWORD_REPLAY_SET,          pluginsd_replay_set);
-        parser_add_keyword(parser, PLUGINSD_KEYWORD_REPLAY_RRDDIM_STATE, pluginsd_replay_rrddim_collection_state);
-        parser_add_keyword(parser, PLUGINSD_KEYWORD_REPLAY_RRDSET_STATE, pluginsd_replay_rrdset_collection_state);
-        parser_add_keyword(parser, PLUGINSD_KEYWORD_REPLAY_END,          pluginsd_replay_end);
-    }
-
-    return parser;
-}
-
-
-/*
- * Push a new line into the parsing stream
- *
- * This line will be the next one to process ie the next fetch will get this one
- *
- */
-
-int parser_push(PARSER *parser, char *line)
-{
-    PARSER_DATA    *tmp_parser_data;
-    
-    if (unlikely(!parser))
-        return 1;
-
-    if (unlikely(!line))
-        return 0;
-
-    tmp_parser_data = callocz(1, sizeof(*tmp_parser_data));
-    tmp_parser_data->line = strdupz(line);
-    tmp_parser_data->next = parser->data;
-    parser->data = tmp_parser_data;
-
-    return 0;
-}
-
-/*
- * Add a keyword and the corresponding function that will be called
- * Multiple functions may be added
- * Input : keyword
- *       : callback function
- *       : flags
- * Output: > 0 registered function number
- *       : 0 Error
- */
-
-int parser_add_keyword(PARSER *parser, char *keyword, keyword_function func)
-{
-    PARSER_KEYWORD  *tmp_keyword;
-
-    if (strcmp(keyword, "_read") == 0) {
-        parser->read_function = (void *) func;
-        return 0;
-    }
-
-    if (strcmp(keyword, "_eof") == 0) {
-        parser->eof_function = (void *) func;
-        return 0;
-    }
-
-    if (strcmp(keyword, "_unknown") == 0) {
-        parser->unknown_function = (void *) func;
-        return 0;
-    }
-
-    uint32_t    keyword_hash = simple_hash(keyword);
-
-    tmp_keyword = parser->keyword;
-
-    while (tmp_keyword) {
-        if (tmp_keyword->keyword_hash == keyword_hash && (!strcmp(tmp_keyword->keyword, keyword))) {
-                if (tmp_keyword->func_no == PARSER_MAX_CALLBACKS)
-                    return 0;
-                tmp_keyword->func[tmp_keyword->func_no++] = (void *) func;
-                return tmp_keyword->func_no;
-        }
-        tmp_keyword = tmp_keyword->next;
-    }
-
-    tmp_keyword = callocz(1, sizeof(*tmp_keyword));
-
-    tmp_keyword->worker_job_id = parser->worker_job_next_id++;
-    tmp_keyword->keyword = strdupz(keyword);
-    tmp_keyword->keyword_hash = keyword_hash;
-    tmp_keyword->func[tmp_keyword->func_no++] = (void *) func;
-
-    worker_register_job_name(tmp_keyword->worker_job_id, tmp_keyword->keyword);
-
-    tmp_keyword->next = parser->keyword;
-    parser->keyword = tmp_keyword;
-    return tmp_keyword->func_no;
-}
-
-/*
- * Cleanup a previously allocated parser
- */
-
-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;
-    
-    // Remove keywords
-    tmp_keyword = parser->keyword;
-    while (tmp_keyword) {
-        tmp_keyword_next = tmp_keyword->next;
-        freez(tmp_keyword->keyword);
-        freez(tmp_keyword);
-        tmp_keyword =  tmp_keyword_next;
-    }
-    
-    // Remove pushed data if any
-    tmp_parser_data = parser->data;
-    while (tmp_parser_data) {
-        tmp_parser_data_next = tmp_parser_data->next;
-        freez(tmp_parser_data->line);
-        freez(tmp_parser_data);
-        tmp_parser_data =  tmp_parser_data_next;
-    }
-
-    freez(parser);
-}
-
-
-/*
- * Fetch the next line to process
- *
- */
-
-int parser_next(PARSER *parser)
-{
-    char    *tmp = NULL;
-
-    if (unlikely(!parser))
-        return 1;
-
-    parser->flags &= ~(PARSER_INPUT_PROCESSED);
-
-    PARSER_DATA  *tmp_parser_data = parser->data;
-
-    if (unlikely(tmp_parser_data)) {
-        strncpyz(parser->buffer, tmp_parser_data->line, PLUGINSD_LINE_MAX);
-        parser->data = tmp_parser_data->next;
-        freez(tmp_parser_data->line);
-        freez(tmp_parser_data);
-        return 0;
-    }
-
-    if (unlikely(parser->read_function))
-        tmp = parser->read_function(parser->buffer, PLUGINSD_LINE_MAX, parser->fp_input);
-    else if(likely(parser->fp_input))
-        tmp = fgets(parser->buffer, PLUGINSD_LINE_MAX, (FILE *)parser->fp_input);
-    else
-        tmp = NULL;
-
-    if (unlikely(!tmp)) {
-        if (unlikely(parser->eof_function)) {
-            int rc = parser->eof_function(parser->fp_input);
-            error("read failed: user defined function returned %d", rc);
-        }
-        else {
-            if (feof((FILE *)parser->fp_input))
-                error("read failed: end of file");
-            else if (ferror((FILE *)parser->fp_input))
-                error("read failed: input error");
-            else
-                error("read failed: unknown error");
-        }
-        return 1;
-    }
-    return 0;
-}
-
-
-/*
-* Takes an initialized parser object that has an unprocessed entry (by calling parser_next)
-* and if it contains a valid keyword, it will execute all the callbacks
-*
-*/
-
-inline int parser_action(PARSER *parser, char *input)
-{
-    parser->line++;
-
-    PARSER_RC rc = PARSER_RC_OK;
-    char *words[PLUGINSD_MAX_WORDS];
-    char command[PLUGINSD_LINE_MAX + 1];
-    keyword_function action_function;
-    keyword_function *action_function_list = NULL;
-
-    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;
-    if (unlikely(!tmp_keyword)) {
-        internal_error(true, "called without a keyword");
-        return 1;
-    }
-
-    if (unlikely(!input))
-        input = parser->buffer;
-
-    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, "PLUGINSD: 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;
-
-    size_t num_words = 0;
-    if ((parser->flags & PARSER_INPUT_KEEP_ORIGINAL) == PARSER_INPUT_KEEP_ORIGINAL)
-        num_words = pluginsd_split_words(input, words, PLUGINSD_MAX_WORDS, parser->recover_input, parser->recover_location, PARSER_MAX_RECOVER_KEYWORDS);
-    else
-        num_words = pluginsd_split_words(input, words, PLUGINSD_MAX_WORDS, NULL, NULL, 0);
-
-    uint32_t command_hash = simple_hash(command);
-
-    size_t worker_job_id = WORKER_UTILIZATION_MAX_JOB_TYPES + 1; // set an invalid value by default
-    while(tmp_keyword) {
-        if (command_hash == tmp_keyword->keyword_hash && (!strcmp(command, tmp_keyword->keyword))) {
-            action_function_list = &tmp_keyword->func[0];
-            worker_job_id = tmp_keyword->worker_job_id;
-            break;
-        }
-        tmp_keyword = tmp_keyword->next;
-    }
-
-    if (unlikely(!action_function_list)) {
-        if (unlikely(parser->unknown_function))
-            rc = parser->unknown_function(words, num_words, parser->user);
-        else
-            rc = PARSER_RC_ERROR;
-    }
-    else {
-        worker_is_busy(worker_job_id);
-        while ((action_function = *action_function_list) != NULL) {
-                rc = action_function(words, num_words, parser->user);
-                if (unlikely(rc == PARSER_RC_ERROR || rc == PARSER_RC_STOP))
-                    break;
-
-                action_function_list++;
-        }
-        worker_is_idle();
-    }
-
-    if (likely(input == parser->buffer))
-        parser->flags |= PARSER_INPUT_PROCESSED;
-
-#ifdef NETDATA_INTERNAL_CHECKS
-    if(rc == PARSER_RC_ERROR) {
-        BUFFER *wb = buffer_create(PLUGINSD_LINE_MAX, NULL);
-        for(size_t i = 0; i < num_words ;i++) {
-            if(i) buffer_fast_strcat(wb, " ", 1);
-
-            buffer_fast_strcat(wb, "\"", 1);
-            const char *s = get_word(words, num_words, i);
-            buffer_strcat(wb, s?s:"");
-            buffer_fast_strcat(wb, "\"", 1);
-        }
-
-        internal_error(true, "PLUGINSD: parser_action('%s') failed on line %zu: { %s } (quotes added to show parsing)",
-                       command, parser->line, buffer_tostring(wb));
-
-        buffer_free(wb);
-    }
-#endif
-
-    return (rc == PARSER_RC_ERROR);
-}
-
-inline int parser_recover_input(PARSER *parser)
-{
-    if (unlikely(!parser))
-        return 1;
-
-    for(int i=0; i < PARSER_MAX_RECOVER_KEYWORDS && parser->recover_location[i]; i++)
-        *(parser->recover_location[i]) = parser->recover_input[i];
-
-    parser->recover_location[0] = 0x0;
-
-    return 0;
-}