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// SPDX-License-Identifier: GPL-3.0-or-later
#define BACKENDS_INTERNALS
#include "aws_kinesis.h"
#define CONFIG_FILE_LINE_MAX ((CONFIG_MAX_NAME + CONFIG_MAX_VALUE + 1024) * 2)
// ----------------------------------------------------------------------------
// kinesis backend
// read the aws_kinesis.conf file
int read_kinesis_conf(const char *path, char **access_key_id_p, char **secret_access_key_p, char **stream_name_p)
{
char *access_key_id = *access_key_id_p;
char *secret_access_key = *secret_access_key_p;
char *stream_name = *stream_name_p;
if(unlikely(access_key_id)) freez(access_key_id);
if(unlikely(secret_access_key)) freez(secret_access_key);
if(unlikely(stream_name)) freez(stream_name);
access_key_id = NULL;
secret_access_key = NULL;
stream_name = NULL;
int line = 0;
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/aws_kinesis.conf", path);
char buffer[CONFIG_FILE_LINE_MAX + 1], *s;
debug(D_BACKEND, "BACKEND: opening config file '%s'", filename);
FILE *fp = fopen(filename, "r");
if(!fp) {
return 1;
}
while(fgets(buffer, CONFIG_FILE_LINE_MAX, fp) != NULL) {
buffer[CONFIG_FILE_LINE_MAX] = '\0';
line++;
s = trim(buffer);
if(!s || *s == '#') {
debug(D_BACKEND, "BACKEND: ignoring line %d of file '%s', it is empty.", line, filename);
continue;
}
char *name = s;
char *value = strchr(s, '=');
if(unlikely(!value)) {
error("BACKEND: ignoring line %d ('%s') of file '%s', there is no = in it.", line, s, filename);
continue;
}
*value = '\0';
value++;
name = trim(name);
value = trim(value);
if(unlikely(!name || *name == '#')) {
error("BACKEND: ignoring line %d of file '%s', name is empty.", line, filename);
continue;
}
if(!value) value = "";
// strip quotes
if(*value == '"' || *value == '\'') {
value++;
s = value;
while(*s) s++;
if(s != value) s--;
if(*s == '"' || *s == '\'') *s = '\0';
}
if(name[0] == 'a' && name[4] == 'a' && !strcmp(name, "aws_access_key_id")) {
access_key_id = strdupz(value);
}
else if(name[0] == 'a' && name[4] == 's' && !strcmp(name, "aws_secret_access_key")) {
secret_access_key = strdupz(value);
}
else if(name[0] == 's' && !strcmp(name, "stream name")) {
stream_name = strdupz(value);
}
}
fclose(fp);
if(unlikely(!stream_name || !*stream_name)) {
error("BACKEND: stream name is a mandatory Kinesis parameter but it is not configured");
return 1;
}
*access_key_id_p = access_key_id;
*secret_access_key_p = secret_access_key;
*stream_name_p = stream_name;
return 0;
}
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