mirror of
https://github.com/woodpecker-ci/woodpecker.git
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123 lines
3 KiB
Go
123 lines
3 KiB
Go
// Copyright 2023 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package registry
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"os"
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"strings"
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"github.com/docker/cli/cli/config/configfile"
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"github.com/docker/cli/cli/config/types"
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"go.woodpecker-ci.org/woodpecker/v2/server/model"
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)
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type filesystem struct {
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path string
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}
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func NewFilesystem(path string) ReadOnlyService {
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return &filesystem{path}
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}
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func parseDockerConfig(path string) ([]*model.Registry, error) {
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if path == "" {
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return nil, nil
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}
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f, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer f.Close()
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configFile := configfile.ConfigFile{
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AuthConfigs: make(map[string]types.AuthConfig),
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}
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if err := json.NewDecoder(f).Decode(&configFile); err != nil {
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return nil, err
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}
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for registryHostname := range configFile.CredentialHelpers {
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newAuth, err := configFile.GetAuthConfig(registryHostname)
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if err == nil {
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configFile.AuthConfigs[registryHostname] = newAuth
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}
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}
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for addr, ac := range configFile.AuthConfigs {
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if ac.Auth != "" {
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ac.Username, ac.Password, err = decodeAuth(ac.Auth)
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if err != nil {
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return nil, err
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}
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ac.Auth = ""
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ac.ServerAddress = addr
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configFile.AuthConfigs[addr] = ac
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}
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}
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var auths []*model.Registry
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for key, auth := range configFile.AuthConfigs {
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auths = append(auths, &model.Registry{
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Address: key,
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Username: auth.Username,
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Password: auth.Password,
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})
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}
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return auths, nil
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}
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func (f *filesystem) RegistryFind(*model.Repo, string) (*model.Registry, error) {
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return nil, nil
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}
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func (f *filesystem) RegistryList(_ *model.Repo, p *model.ListOptions) ([]*model.Registry, error) {
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regs, err := parseDockerConfig(f.path)
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if err != nil {
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return nil, err
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}
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return model.ApplyPagination(p, regs), nil
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}
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// decodeAuth decodes a base64 encoded string and returns username and password
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func decodeAuth(authStr string) (string, string, error) {
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if authStr == "" {
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return "", "", nil
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}
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decLen := base64.StdEncoding.DecodedLen(len(authStr))
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decoded := make([]byte, decLen)
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authByte := []byte(authStr)
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n, err := base64.StdEncoding.Decode(decoded, authByte)
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if err != nil {
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return "", "", err
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}
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if n > decLen {
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return "", "", fmt.Errorf("something went wrong decoding auth config")
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}
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before, after, _ := strings.Cut(string(decoded), ":")
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if before == "" || after == "" {
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return "", "", fmt.Errorf("invalid auth configuration file")
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}
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password := strings.Trim(after, "\x00")
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return before, password, nil
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}
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