2023-02-14 22:12:19 +00:00
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// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package cmd
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import (
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2025-06-01 22:16:37 +02:00
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"context"
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"errors"
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"fmt"
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"strings"
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2025-03-27 19:40:14 +00:00
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user_model "forgejo.org/models/user"
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"forgejo.org/modules/storage"
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user_service "forgejo.org/services/user"
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2025-06-01 22:16:37 +02:00
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"github.com/urfave/cli/v3"
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)
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2025-06-01 22:16:37 +02:00
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func microcmdUserDelete() *cli.Command {
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return &cli.Command{
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Name: "delete",
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Usage: "Delete specific user by id, name or email",
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Flags: []cli.Flag{
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&cli.Int64Flag{
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Name: "id",
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Usage: "ID of user of the user to delete",
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},
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&cli.StringFlag{
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Name: "username",
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Aliases: []string{"u"},
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Usage: "Username of the user to delete",
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},
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&cli.StringFlag{
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Name: "email",
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Aliases: []string{"e"},
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Usage: "Email of the user to delete",
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},
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&cli.BoolFlag{
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Name: "purge",
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Usage: "Purge user, all their repositories, organizations and comments",
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},
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},
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Action: runDeleteUser,
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}
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}
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2025-06-01 22:16:37 +02:00
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func runDeleteUser(ctx context.Context, c *cli.Command) error {
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if !c.IsSet("id") && !c.IsSet("username") && !c.IsSet("email") {
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return errors.New("You must provide the id, username or email of a user to delete")
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}
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2025-06-01 22:16:37 +02:00
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ctx, cancel := installSignals(ctx)
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defer cancel()
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if err := initDB(ctx); err != nil {
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return err
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}
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if err := storage.Init(); err != nil {
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return err
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}
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var err error
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var user *user_model.User
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if c.IsSet("email") {
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Add context cache as a request level cache (#22294)
To avoid duplicated load of the same data in an HTTP request, we can set
a context cache to do that. i.e. Some pages may load a user from a
database with the same id in different areas on the same page. But the
code is hidden in two different deep logic. How should we share the
user? As a result of this PR, now if both entry functions accept
`context.Context` as the first parameter and we just need to refactor
`GetUserByID` to reuse the user from the context cache. Then it will not
be loaded twice on an HTTP request.
But of course, sometimes we would like to reload an object from the
database, that's why `RemoveContextData` is also exposed.
The core context cache is here. It defines a new context
```go
type cacheContext struct {
ctx context.Context
data map[any]map[any]any
lock sync.RWMutex
}
var cacheContextKey = struct{}{}
func WithCacheContext(ctx context.Context) context.Context {
return context.WithValue(ctx, cacheContextKey, &cacheContext{
ctx: ctx,
data: make(map[any]map[any]any),
})
}
```
Then you can use the below 4 methods to read/write/del the data within
the same context.
```go
func GetContextData(ctx context.Context, tp, key any) any
func SetContextData(ctx context.Context, tp, key, value any)
func RemoveContextData(ctx context.Context, tp, key any)
func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error)
```
Then let's take a look at how `system.GetString` implement it.
```go
func GetSetting(ctx context.Context, key string) (string, error) {
return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) {
return cache.GetString(genSettingCacheKey(key), func() (string, error) {
res, err := GetSettingNoCache(ctx, key)
if err != nil {
return "", err
}
return res.SettingValue, nil
})
})
}
```
First, it will check if context data include the setting object with the
key. If not, it will query from the global cache which may be memory or
a Redis cache. If not, it will get the object from the database. In the
end, if the object gets from the global cache or database, it will be
set into the context cache.
An object stored in the context cache will only be destroyed after the
context disappeared.
2023-02-15 21:37:34 +08:00
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user, err = user_model.GetUserByEmail(ctx, c.String("email"))
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} else if c.IsSet("username") {
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user, err = user_model.GetUserByName(ctx, c.String("username"))
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} else {
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user, err = user_model.GetUserByID(ctx, c.Int64("id"))
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}
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if err != nil {
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return err
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}
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if c.IsSet("username") && user.LowerName != strings.ToLower(strings.TrimSpace(c.String("username"))) {
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return fmt.Errorf("The user %s who has email %s does not match the provided username %s", user.Name, c.String("email"), c.String("username"))
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}
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if c.IsSet("id") && user.ID != c.Int64("id") {
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return fmt.Errorf("The user %s does not match the provided id %d", user.Name, c.Int64("id"))
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}
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return user_service.DeleteUser(ctx, user, c.Bool("purge"))
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}
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