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https://github.com/go-gitea/gitea.git
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Follow up #22405 Fix #20703 This PR rewrites storage configuration read sequences with some breaks and tests. It becomes more strict than before and also fixed some inherit problems. - Move storage's MinioConfig struct into setting, so after the configuration loading, the values will be stored into the struct but not still on some section. - All storages configurations should be stored on one section, configuration items cannot be overrided by multiple sections. The prioioty of configuration is `[attachment]` > `[storage.attachments]` | `[storage.customized]` > `[storage]` > `default` - For extra override configuration items, currently are `SERVE_DIRECT`, `MINIO_BASE_PATH`, `MINIO_BUCKET`, which could be configured in another section. The prioioty of the override configuration is `[attachment]` > `[storage.attachments]` > `default`. - Add more tests for storages configurations. - Update the storage documentations. --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
335 lines
9.0 KiB
Go
335 lines
9.0 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package setting
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import (
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"fmt"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/util"
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"gopkg.in/ini.v1" //nolint:depguard
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)
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type ConfigKey interface {
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Name() string
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Value() string
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SetValue(v string)
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In(defaultVal string, candidates []string) string
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String() string
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Strings(delim string) []string
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MustString(defaultVal string) string
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MustBool(defaultVal ...bool) bool
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MustInt(defaultVal ...int) int
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MustInt64(defaultVal ...int64) int64
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MustDuration(defaultVal ...time.Duration) time.Duration
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}
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type ConfigSection interface {
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Name() string
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MapTo(any) error
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HasKey(key string) bool
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NewKey(name, value string) (ConfigKey, error)
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Key(key string) ConfigKey
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Keys() []ConfigKey
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ChildSections() []ConfigSection
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}
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// ConfigProvider represents a config provider
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type ConfigProvider interface {
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Section(section string) ConfigSection
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Sections() []ConfigSection
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NewSection(name string) (ConfigSection, error)
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GetSection(name string) (ConfigSection, error)
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Save() error
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SaveTo(filename string) error
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}
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type iniConfigProvider struct {
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opts *Options
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ini *ini.File
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newFile bool // whether the file has not existed previously
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}
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type iniConfigSection struct {
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sec *ini.Section
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}
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var (
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_ ConfigProvider = (*iniConfigProvider)(nil)
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_ ConfigSection = (*iniConfigSection)(nil)
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_ ConfigKey = (*ini.Key)(nil)
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)
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// ConfigSectionKey only searches the keys in the given section, but it is O(n).
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// ini package has a special behavior: with "[sec] a=1" and an empty "[sec.sub]",
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// then in "[sec.sub]", Key()/HasKey() can always see "a=1" because it always tries parent sections.
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// It returns nil if the key doesn't exist.
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func ConfigSectionKey(sec ConfigSection, key string) ConfigKey {
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if sec == nil {
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return nil
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}
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for _, k := range sec.Keys() {
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if k.Name() == key {
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return k
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}
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}
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return nil
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}
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func ConfigSectionKeyString(sec ConfigSection, key string, def ...string) string {
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k := ConfigSectionKey(sec, key)
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if k != nil && k.String() != "" {
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return k.String()
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}
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if len(def) > 0 {
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return def[0]
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}
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return ""
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}
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func ConfigSectionKeyBool(sec ConfigSection, key string, def ...bool) bool {
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k := ConfigSectionKey(sec, key)
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if k != nil && k.String() != "" {
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b, _ := strconv.ParseBool(k.String())
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return b
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}
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if len(def) > 0 {
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return def[0]
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}
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return false
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}
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// ConfigInheritedKey works like ini.Section.Key(), but it always returns a new key instance, it is O(n) because NewKey is O(n)
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// and the returned key is safe to be used with "MustXxx", it doesn't change the parent's values.
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// Otherwise, ini.Section.Key().MustXxx would pollute the parent section's keys.
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// It never returns nil.
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func ConfigInheritedKey(sec ConfigSection, key string) ConfigKey {
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k := sec.Key(key)
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if k != nil && k.String() != "" {
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newKey, _ := sec.NewKey(k.Name(), k.String())
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return newKey
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}
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newKey, _ := sec.NewKey(key, "")
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return newKey
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}
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func ConfigInheritedKeyString(sec ConfigSection, key string, def ...string) string {
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k := sec.Key(key)
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if k != nil && k.String() != "" {
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return k.String()
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}
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if len(def) > 0 {
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return def[0]
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}
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return ""
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}
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func (s *iniConfigSection) Name() string {
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return s.sec.Name()
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}
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func (s *iniConfigSection) MapTo(v any) error {
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return s.sec.MapTo(v)
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}
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func (s *iniConfigSection) HasKey(key string) bool {
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return s.sec.HasKey(key)
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}
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func (s *iniConfigSection) NewKey(name, value string) (ConfigKey, error) {
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return s.sec.NewKey(name, value)
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}
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func (s *iniConfigSection) Key(key string) ConfigKey {
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return s.sec.Key(key)
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}
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func (s *iniConfigSection) Keys() (keys []ConfigKey) {
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for _, k := range s.sec.Keys() {
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keys = append(keys, k)
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}
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return keys
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}
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func (s *iniConfigSection) ChildSections() (sections []ConfigSection) {
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for _, s := range s.sec.ChildSections() {
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sections = append(sections, &iniConfigSection{s})
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}
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return sections
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}
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// NewConfigProviderFromData this function is mainly for testing purpose
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func NewConfigProviderFromData(configContent string) (ConfigProvider, error) {
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cfg, err := ini.Load(strings.NewReader(configContent))
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if err != nil {
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return nil, err
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}
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cfg.NameMapper = ini.SnackCase
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return &iniConfigProvider{
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ini: cfg,
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newFile: true,
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}, nil
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}
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type Options struct {
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CustomConf string // the ini file path
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AllowEmpty bool // whether not finding configuration files is allowed
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ExtraConfig string
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DisableLoadCommonSettings bool // only used by "Init()", not used by "NewConfigProvider()"
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}
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// NewConfigProviderFromFile load configuration from file.
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// NOTE: do not print any log except error.
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func NewConfigProviderFromFile(opts *Options) (ConfigProvider, error) {
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cfg := ini.Empty()
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newFile := true
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if opts.CustomConf != "" {
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isFile, err := util.IsFile(opts.CustomConf)
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if err != nil {
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return nil, fmt.Errorf("unable to check if %s is a file. Error: %v", opts.CustomConf, err)
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}
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if isFile {
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if err := cfg.Append(opts.CustomConf); err != nil {
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return nil, fmt.Errorf("failed to load custom conf '%s': %v", opts.CustomConf, err)
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}
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newFile = false
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}
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}
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if newFile && !opts.AllowEmpty {
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return nil, fmt.Errorf("unable to find configuration file: %q, please ensure you are running in the correct environment or set the correct configuration file with -c", CustomConf)
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}
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if opts.ExtraConfig != "" {
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if err := cfg.Append([]byte(opts.ExtraConfig)); err != nil {
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return nil, fmt.Errorf("unable to append more config: %v", err)
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}
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}
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cfg.NameMapper = ini.SnackCase
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return &iniConfigProvider{
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opts: opts,
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ini: cfg,
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newFile: newFile,
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}, nil
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}
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func (p *iniConfigProvider) Section(section string) ConfigSection {
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return &iniConfigSection{sec: p.ini.Section(section)}
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}
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func (p *iniConfigProvider) Sections() (sections []ConfigSection) {
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for _, s := range p.ini.Sections() {
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sections = append(sections, &iniConfigSection{s})
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}
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return sections
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}
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func (p *iniConfigProvider) NewSection(name string) (ConfigSection, error) {
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sec, err := p.ini.NewSection(name)
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if err != nil {
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return nil, err
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}
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return &iniConfigSection{sec: sec}, nil
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}
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func (p *iniConfigProvider) GetSection(name string) (ConfigSection, error) {
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sec, err := p.ini.GetSection(name)
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if err != nil {
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return nil, err
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}
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return &iniConfigSection{sec: sec}, nil
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}
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// Save saves the content into file
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func (p *iniConfigProvider) Save() error {
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filename := p.opts.CustomConf
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if filename == "" {
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if !p.opts.AllowEmpty {
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return fmt.Errorf("custom config path must not be empty")
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}
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return nil
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}
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if p.newFile {
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if err := os.MkdirAll(filepath.Dir(filename), os.ModePerm); err != nil {
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return fmt.Errorf("failed to create '%s': %v", filename, err)
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}
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}
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if err := p.ini.SaveTo(filename); err != nil {
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return fmt.Errorf("failed to save '%s': %v", filename, err)
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}
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// Change permissions to be more restrictive
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fi, err := os.Stat(filename)
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if err != nil {
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return fmt.Errorf("failed to determine current conf file permissions: %v", err)
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}
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if fi.Mode().Perm() > 0o600 {
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if err = os.Chmod(filename, 0o600); err != nil {
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log.Warn("Failed changing conf file permissions to -rw-------. Consider changing them manually.")
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}
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}
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return nil
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}
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func (p *iniConfigProvider) SaveTo(filename string) error {
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return p.ini.SaveTo(filename)
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}
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func mustMapSetting(rootCfg ConfigProvider, sectionName string, setting any) {
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if err := rootCfg.Section(sectionName).MapTo(setting); err != nil {
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log.Fatal("Failed to map %s settings: %v", sectionName, err)
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}
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}
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func deprecatedSetting(rootCfg ConfigProvider, oldSection, oldKey, newSection, newKey, version string) {
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if rootCfg.Section(oldSection).HasKey(oldKey) {
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log.Error("Deprecated fallback `[%s]` `%s` present. Use `[%s]` `%s` instead. This fallback will be/has been removed in %s", oldSection, oldKey, newSection, newKey, version)
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}
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}
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func deprecatedSettingFatal(rootCfg ConfigProvider, oldSection, oldKey, newSection, newKey, version string) {
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if rootCfg.Section(oldSection).HasKey(oldKey) {
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log.Fatal("Deprecated fallback `[%s]` `%s` present. Use `[%s]` `%s` instead. This fallback will be/has been removed in %s", oldSection, oldKey, newSection, newKey, version)
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}
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}
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// deprecatedSettingDB add a hint that the configuration has been moved to database but still kept in app.ini
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func deprecatedSettingDB(rootCfg ConfigProvider, oldSection, oldKey string) {
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if rootCfg.Section(oldSection).HasKey(oldKey) {
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log.Error("Deprecated `[%s]` `%s` present which has been copied to database table sys_setting", oldSection, oldKey)
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}
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}
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// NewConfigProviderForLocale loads locale configuration from source and others. "string" if for a local file path, "[]byte" is for INI content
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func NewConfigProviderForLocale(source any, others ...any) (ConfigProvider, error) {
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iniFile, err := ini.LoadSources(ini.LoadOptions{
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IgnoreInlineComment: true,
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UnescapeValueCommentSymbols: true,
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}, source, others...)
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if err != nil {
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return nil, fmt.Errorf("unable to load locale ini: %w", err)
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}
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iniFile.BlockMode = false
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return &iniConfigProvider{
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ini: iniFile,
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newFile: true,
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}, nil
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}
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func init() {
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ini.PrettyFormat = false
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}
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