mirror of https://github.com/octoleo/restic.git
80 lines
1.6 KiB
Go
80 lines
1.6 KiB
Go
package s3
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import (
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"errors"
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"net/url"
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"strings"
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)
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// Config contains all configuration necessary to connect to an s3 compatible
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// server.
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type Config struct {
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Region string
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URL string
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KeyID, Secret string
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Bucket string
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}
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// ParseConfig parses the string s and extracts the s3 config. The two
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// supported configuration formats are s3://host/bucketname and
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// s3:host:bucketname. The host can also be a valid s3 region name.
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func ParseConfig(s string) (interface{}, error) {
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if strings.HasPrefix(s, "s3://") {
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s = s[5:]
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data := strings.SplitN(s, "/", 2)
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if len(data) != 2 {
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return nil, errors.New("s3: invalid format, host/region or bucket name not found")
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}
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cfg := Config{
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Region: data[0],
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Bucket: data[1],
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}
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return cfg, nil
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}
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data := strings.SplitN(s, ":", 2)
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if len(data) != 2 {
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return nil, errors.New("s3: invalid format")
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}
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if data[0] != "s3" {
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return nil, errors.New(`s3: config does not start with "s3"`)
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}
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s = data[1]
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cfg := Config{}
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rest := strings.Split(s, "/")
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if len(rest) < 2 {
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return nil, errors.New("s3: region or bucket not found")
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}
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if len(rest) == 2 {
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// assume that just a region name and a bucket has been specified, in
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// the format region/bucket
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cfg.Region = rest[0]
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cfg.Bucket = rest[1]
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} else {
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// assume that a URL has been specified, parse it and use the path as
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// the bucket name.
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url, err := url.Parse(s)
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if err != nil {
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return nil, err
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}
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if url.Path == "" {
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return nil, errors.New("s3: bucket name not found")
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}
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cfg.Bucket = url.Path[1:]
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url.Path = ""
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cfg.URL = url.String()
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}
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return cfg, nil
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}
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