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forgejo/routers/api/v1/repo/hook.go
Lunny Xiao bd820aa9c5
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

308 lines
7.7 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2020 The Gitea Authors.
// SPDX-License-Identifier: MIT
package repo
import (
"net/http"
"code.gitea.io/gitea/models/perm"
"code.gitea.io/gitea/models/webhook"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/web"
webhook_module "code.gitea.io/gitea/modules/webhook"
"code.gitea.io/gitea/routers/api/v1/utils"
"code.gitea.io/gitea/services/convert"
webhook_service "code.gitea.io/gitea/services/webhook"
)
// ListHooks list all hooks of a repository
func ListHooks(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/hooks repository repoListHooks
// ---
// summary: List the hooks in a repository
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: page
// in: query
// description: page number of results to return (1-based)
// type: integer
// - name: limit
// in: query
// description: page size of results
// type: integer
// responses:
// "200":
// "$ref": "#/responses/HookList"
opts := &webhook.ListWebhookOptions{
ListOptions: utils.GetListOptions(ctx),
RepoID: ctx.Repo.Repository.ID,
}
count, err := webhook.CountWebhooksByOpts(opts)
if err != nil {
ctx.InternalServerError(err)
return
}
hooks, err := webhook.ListWebhooksByOpts(ctx, opts)
if err != nil {
ctx.InternalServerError(err)
return
}
apiHooks := make([]*api.Hook, len(hooks))
for i := range hooks {
apiHooks[i], err = webhook_service.ToHook(ctx.Repo.RepoLink, hooks[i])
if err != nil {
ctx.InternalServerError(err)
return
}
}
ctx.SetTotalCountHeader(count)
ctx.JSON(http.StatusOK, &apiHooks)
}
// GetHook get a repo's hook by id
func GetHook(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/hooks/{id} repository repoGetHook
// ---
// summary: Get a hook
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: id
// in: path
// description: id of the hook to get
// type: integer
// format: int64
// required: true
// responses:
// "200":
// "$ref": "#/responses/Hook"
// "404":
// "$ref": "#/responses/notFound"
repo := ctx.Repo
hookID := ctx.ParamsInt64(":id")
hook, err := utils.GetRepoHook(ctx, repo.Repository.ID, hookID)
if err != nil {
return
}
apiHook, err := webhook_service.ToHook(repo.RepoLink, hook)
if err != nil {
ctx.InternalServerError(err)
return
}
ctx.JSON(http.StatusOK, apiHook)
}
// TestHook tests a hook
func TestHook(ctx *context.APIContext) {
// swagger:operation POST /repos/{owner}/{repo}/hooks/{id}/tests repository repoTestHook
// ---
// summary: Test a push webhook
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: id
// in: path
// description: id of the hook to test
// type: integer
// format: int64
// required: true
// - name: ref
// in: query
// description: "The name of the commit/branch/tag, indicates which commit will be loaded to the webhook payload."
// type: string
// required: false
// responses:
// "204":
// "$ref": "#/responses/empty"
if ctx.Repo.Commit == nil {
// if repo does not have any commits, then don't send a webhook
ctx.Status(http.StatusNoContent)
return
}
ref := git.BranchPrefix + ctx.Repo.Repository.DefaultBranch
if r := ctx.FormTrim("ref"); r != "" {
ref = r
}
hookID := ctx.ParamsInt64(":id")
hook, err := utils.GetRepoHook(ctx, ctx.Repo.Repository.ID, hookID)
if err != nil {
return
}
commit := convert.ToPayloadCommit(ctx, ctx.Repo.Repository, ctx.Repo.Commit)
commitID := ctx.Repo.Commit.ID.String()
if err := webhook_service.PrepareWebhook(ctx, hook, webhook_module.HookEventPush, &api.PushPayload{
Ref: ref,
Before: commitID,
After: commitID,
CompareURL: setting.AppURL + ctx.Repo.Repository.ComposeCompareURL(commitID, commitID),
Commits: []*api.PayloadCommit{commit},
TotalCommits: 1,
HeadCommit: commit,
Repo: convert.ToRepo(ctx, ctx.Repo.Repository, perm.AccessModeNone),
Pusher: convert.ToUserWithAccessMode(ctx, ctx.Doer, perm.AccessModeNone),
Sender: convert.ToUserWithAccessMode(ctx, ctx.Doer, perm.AccessModeNone),
}); err != nil {
ctx.Error(http.StatusInternalServerError, "PrepareWebhook: ", err)
return
}
ctx.Status(http.StatusNoContent)
}
// CreateHook create a hook for a repository
func CreateHook(ctx *context.APIContext) {
// swagger:operation POST /repos/{owner}/{repo}/hooks repository repoCreateHook
// ---
// summary: Create a hook
// consumes:
// - application/json
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/CreateHookOption"
// responses:
// "201":
// "$ref": "#/responses/Hook"
form := web.GetForm(ctx).(*api.CreateHookOption)
if !utils.CheckCreateHookOption(ctx, form) {
return
}
utils.AddRepoHook(ctx, form)
}
// EditHook modify a hook of a repository
func EditHook(ctx *context.APIContext) {
// swagger:operation PATCH /repos/{owner}/{repo}/hooks/{id} repository repoEditHook
// ---
// summary: Edit a hook in a repository
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: id
// in: path
// description: index of the hook
// type: integer
// format: int64
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/EditHookOption"
// responses:
// "200":
// "$ref": "#/responses/Hook"
form := web.GetForm(ctx).(*api.EditHookOption)
hookID := ctx.ParamsInt64(":id")
utils.EditRepoHook(ctx, form, hookID)
}
// DeleteHook delete a hook of a repository
func DeleteHook(ctx *context.APIContext) {
// swagger:operation DELETE /repos/{owner}/{repo}/hooks/{id} repository repoDeleteHook
// ---
// summary: Delete a hook in a repository
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: id
// in: path
// description: id of the hook to delete
// type: integer
// format: int64
// required: true
// responses:
// "204":
// "$ref": "#/responses/empty"
// "404":
// "$ref": "#/responses/notFound"
if err := webhook.DeleteWebhookByRepoID(ctx.Repo.Repository.ID, ctx.ParamsInt64(":id")); err != nil {
if webhook.IsErrWebhookNotExist(err) {
ctx.NotFound()
} else {
ctx.Error(http.StatusInternalServerError, "DeleteWebhookByRepoID", err)
}
return
}
ctx.Status(http.StatusNoContent)
}