mirror of
https://github.com/cgrates/cgrates.git
synced 2026-02-24 08:38:45 +05:00
88 lines
3.1 KiB
Go
88 lines
3.1 KiB
Go
/*
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Rating system designed to be used in VoIP Carriers World
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Copyright (C) 2013 ITsysCOM
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package config
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import (
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"code.google.com/p/goconf/conf"
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"errors"
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"regexp"
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"strings"
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"github.com/cgrates/cgrates/utils"
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)
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// Adds support for slice values in config
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func ConfigSlice(c *conf.ConfigFile, section, valName string) ([]string, error) {
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sliceStr, errGet := c.GetString(section, valName)
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if errGet != nil {
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return nil, errGet
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}
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cfgValStrs := strings.Split(sliceStr, ",") // If need arrises, we can make the separator configurable
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if len(cfgValStrs) == 1 && cfgValStrs[0] == "" { // Prevents returning iterable with empty value
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return []string{}, nil
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}
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for _, elm := range cfgValStrs {
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if elm == "" { //One empty element is presented when splitting empty string
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return nil, errors.New("Empty values in config slice")
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}
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}
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return cfgValStrs, nil
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}
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// Used to parse extra fields definition
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func parseSearchReplaceFromFieldRule(fieldRule string) (string, *utils.ReSearchReplace, error) {
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// String rule expected in the form ~hdr_name:s/match_rule/replace_rule/
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getRuleRgxp := regexp.MustCompile(`~(\w+):s\/(.+[^\\])\/(.+[^\\])\/`) // Make sure the separator / is not escaped in the rule
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allMatches := getRuleRgxp.FindStringSubmatch(fieldRule)
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if len(allMatches) != 4 { // Second and third groups are of interest to us
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return "", nil, errors.New("Invalid Search&Replace field rule.")
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}
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fieldName := allMatches[1]
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searchRegexp, err := regexp.Compile(allMatches[2])
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if err != nil {
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return fieldName, nil, err
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}
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return fieldName, &utils.ReSearchReplace{searchRegexp, allMatches[3]}, nil
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}
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func ParseRSRFields(configVal string) ([]*utils.RSRField, error) {
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cfgValStrs := strings.Split(configVal, string(utils.CSV_SEP))
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if len(cfgValStrs) == 1 && cfgValStrs[0] == "" { // Prevents returning iterable with empty value
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return []*utils.RSRField{}, nil
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}
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rsrFields := make([]*utils.RSRField, len(cfgValStrs))
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for idx, cfgValStr := range cfgValStrs {
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if len(cfgValStr) == 0 { //One empty element is presented when splitting empty string
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return nil, errors.New("Empty values in config slice")
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}
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if !strings.HasPrefix(cfgValStr, utils.REGEXP_SEP) {
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rsrFields[idx] = &utils.RSRField{Id: cfgValStr}
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continue // Nothing to be done for fields without ReSearchReplace rules
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}
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if fldId, reSrcRepl, err := parseSearchReplaceFromFieldRule(cfgValStr); err != nil {
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return nil, err
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} else {
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rsrFields[idx] = &utils.RSRField{fldId, reSrcRepl}
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}
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}
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return rsrFields, nil
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}
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