mirror of
https://github.com/cgrates/cgrates.git
synced 2026-02-11 18:16:24 +05:00
117 lines
3.3 KiB
Go
117 lines
3.3 KiB
Go
/*
|
|
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
|
|
Copyright (C) ITsysCOM GmbH
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>
|
|
*/
|
|
|
|
package loaders
|
|
|
|
import (
|
|
"archive/zip"
|
|
"encoding/csv"
|
|
"io"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/cgrates/cgrates/config"
|
|
"github.com/cgrates/cgrates/engine"
|
|
"github.com/cgrates/cgrates/utils"
|
|
)
|
|
|
|
func NewCSVReader(prv CSVProvider, dPath, fn string, sep rune, nrFlds int) (_ *CSVFile, err error) {
|
|
var file io.ReadCloser
|
|
if file, err = prv.Open(dPath, fn); err != nil {
|
|
return
|
|
}
|
|
return NewCSVFile(file, path.Join(dPath, fn), sep, nrFlds), nil
|
|
}
|
|
|
|
func NewCSVFile(rdr io.ReadCloser, path string, sep rune, nrFlds int) *CSVFile {
|
|
csvRrdr := csv.NewReader(rdr)
|
|
csvRrdr.Comma = sep
|
|
csvRrdr.Comment = utils.CommentChar
|
|
csvRrdr.FieldsPerRecord = nrFlds
|
|
return &CSVFile{
|
|
path: path,
|
|
cls: rdr,
|
|
csvRdr: csvRrdr,
|
|
}
|
|
}
|
|
|
|
func NewStringCSV(data string, sep rune, nrFlds int) *CSVFile {
|
|
return NewCSVFile(io.NopCloser(strings.NewReader(data)), data, sep, nrFlds)
|
|
}
|
|
|
|
type CSVFile struct {
|
|
path string // only for logging purposes
|
|
cls io.Closer // keep reference so we can close it when done
|
|
csvRdr *csv.Reader
|
|
}
|
|
|
|
func (c *CSVFile) Path() string { return c.path }
|
|
func (c *CSVFile) Read() ([]string, error) { return c.csvRdr.Read() }
|
|
func (c *CSVFile) Close() error { return c.cls.Close() }
|
|
|
|
type CSVProvider interface {
|
|
Open(dPath, fn string) (io.ReadCloser, error)
|
|
Type() string
|
|
}
|
|
|
|
type fileProvider struct{}
|
|
|
|
func (fileProvider) Open(dPath, fn string) (io.ReadCloser, error) {
|
|
return os.Open(path.Join(dPath, fn))
|
|
}
|
|
|
|
func (fileProvider) Type() string { return utils.MetaFileCSV }
|
|
|
|
type urlProvider struct{}
|
|
|
|
func (urlProvider) Open(dPath, fn string) (_ io.ReadCloser, err error) {
|
|
path := strings.TrimSuffix(dPath, utils.Slash) + utils.Slash + fn
|
|
if _, err = url.ParseRequestURI(path); err != nil {
|
|
return
|
|
}
|
|
var req *http.Response
|
|
if req, err = (&http.Client{
|
|
Transport: engine.HTTPPstrTransport(),
|
|
Timeout: config.CgrConfig().GeneralCfg().ReplyTimeout,
|
|
}).Get(path); err != nil {
|
|
err = utils.ErrPathNotReachable(path)
|
|
return
|
|
}
|
|
if req.StatusCode != http.StatusOK {
|
|
err = utils.ErrNotFound
|
|
return
|
|
}
|
|
return req.Body, nil
|
|
}
|
|
func (urlProvider) Type() string { return utils.MetaUrl }
|
|
|
|
type zipProvider struct{ *zip.Reader }
|
|
|
|
func (z zipProvider) Open(_, fn string) (io.ReadCloser, error) { return z.Reader.Open(fn) }
|
|
func (zipProvider) Type() string { return utils.MetaZip }
|
|
|
|
type stringProvider struct{}
|
|
|
|
func (stringProvider) Open(_, fn string) (io.ReadCloser, error) {
|
|
return io.NopCloser(strings.NewReader(fn)), nil
|
|
}
|
|
func (stringProvider) Type() string { return utils.MetaString }
|