mirror of
https://github.com/go-gitea/gitea
synced 2024-12-25 17:35:58 +01:00
bd820aa9c5
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.
352 lines
10 KiB
Go
352 lines
10 KiB
Go
// Copyright 2016 The Gogs Authors. All rights reserved.
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// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"errors"
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"net/http"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/models/perm"
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access_model "code.gitea.io/gitea/models/perm/access"
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repo_model "code.gitea.io/gitea/models/repo"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/context"
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repo_module "code.gitea.io/gitea/modules/repository"
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api "code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/web"
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"code.gitea.io/gitea/routers/api/v1/utils"
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"code.gitea.io/gitea/services/convert"
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)
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// ListCollaborators list a repository's collaborators
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func ListCollaborators(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/collaborators repository repoListCollaborators
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// ---
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// summary: List a repository's collaborators
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: page
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// in: query
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// description: page number of results to return (1-based)
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// type: integer
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// - name: limit
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// in: query
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// description: page size of results
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// type: integer
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// responses:
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// "200":
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// "$ref": "#/responses/UserList"
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count, err := repo_model.CountCollaborators(ctx.Repo.Repository.ID)
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if err != nil {
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ctx.InternalServerError(err)
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return
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}
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collaborators, err := repo_model.GetCollaborators(ctx, ctx.Repo.Repository.ID, utils.GetListOptions(ctx))
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "ListCollaborators", err)
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return
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}
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users := make([]*api.User, len(collaborators))
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for i, collaborator := range collaborators {
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users[i] = convert.ToUser(ctx, collaborator.User, ctx.Doer)
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}
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ctx.SetTotalCountHeader(count)
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ctx.JSON(http.StatusOK, users)
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}
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// IsCollaborator check if a user is a collaborator of a repository
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func IsCollaborator(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/collaborators/{collaborator} repository repoCheckCollaborator
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// ---
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// summary: Check if a user is a collaborator of a repository
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: collaborator
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// in: path
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// description: username of the collaborator
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// type: string
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// required: true
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// responses:
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// "204":
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// "$ref": "#/responses/empty"
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// "404":
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// "$ref": "#/responses/notFound"
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// "422":
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// "$ref": "#/responses/validationError"
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user, err := user_model.GetUserByName(ctx, ctx.Params(":collaborator"))
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if err != nil {
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if user_model.IsErrUserNotExist(err) {
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ctx.Error(http.StatusUnprocessableEntity, "", err)
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} else {
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ctx.Error(http.StatusInternalServerError, "GetUserByName", err)
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}
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return
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}
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isColab, err := repo_model.IsCollaborator(ctx, ctx.Repo.Repository.ID, user.ID)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "IsCollaborator", err)
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return
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}
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if isColab {
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ctx.Status(http.StatusNoContent)
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} else {
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ctx.NotFound()
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}
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}
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// AddCollaborator add a collaborator to a repository
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func AddCollaborator(ctx *context.APIContext) {
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// swagger:operation PUT /repos/{owner}/{repo}/collaborators/{collaborator} repository repoAddCollaborator
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// ---
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// summary: Add a collaborator to a repository
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: collaborator
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// in: path
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// description: username of the collaborator to add
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// type: string
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// required: true
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// - name: body
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// in: body
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// schema:
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// "$ref": "#/definitions/AddCollaboratorOption"
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// responses:
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// "204":
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// "$ref": "#/responses/empty"
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// "422":
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// "$ref": "#/responses/validationError"
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form := web.GetForm(ctx).(*api.AddCollaboratorOption)
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collaborator, err := user_model.GetUserByName(ctx, ctx.Params(":collaborator"))
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if err != nil {
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if user_model.IsErrUserNotExist(err) {
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ctx.Error(http.StatusUnprocessableEntity, "", err)
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} else {
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ctx.Error(http.StatusInternalServerError, "GetUserByName", err)
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}
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return
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}
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if !collaborator.IsActive {
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ctx.Error(http.StatusInternalServerError, "InactiveCollaborator", errors.New("collaborator's account is inactive"))
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return
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}
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if err := repo_module.AddCollaborator(ctx, ctx.Repo.Repository, collaborator); err != nil {
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ctx.Error(http.StatusInternalServerError, "AddCollaborator", err)
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return
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}
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if form.Permission != nil {
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if err := repo_model.ChangeCollaborationAccessMode(ctx, ctx.Repo.Repository, collaborator.ID, perm.ParseAccessMode(*form.Permission)); err != nil {
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ctx.Error(http.StatusInternalServerError, "ChangeCollaborationAccessMode", err)
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return
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}
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}
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ctx.Status(http.StatusNoContent)
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}
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// DeleteCollaborator delete a collaborator from a repository
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func DeleteCollaborator(ctx *context.APIContext) {
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// swagger:operation DELETE /repos/{owner}/{repo}/collaborators/{collaborator} repository repoDeleteCollaborator
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// ---
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// summary: Delete a collaborator from a repository
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: collaborator
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// in: path
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// description: username of the collaborator to delete
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// type: string
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// required: true
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// responses:
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// "204":
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// "$ref": "#/responses/empty"
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// "422":
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// "$ref": "#/responses/validationError"
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collaborator, err := user_model.GetUserByName(ctx, ctx.Params(":collaborator"))
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if err != nil {
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if user_model.IsErrUserNotExist(err) {
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ctx.Error(http.StatusUnprocessableEntity, "", err)
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} else {
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ctx.Error(http.StatusInternalServerError, "GetUserByName", err)
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}
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return
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}
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if err := models.DeleteCollaboration(ctx.Repo.Repository, collaborator.ID); err != nil {
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ctx.Error(http.StatusInternalServerError, "DeleteCollaboration", err)
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return
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}
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ctx.Status(http.StatusNoContent)
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}
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// GetRepoPermissions gets repository permissions for a user
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func GetRepoPermissions(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/collaborators/{collaborator}/permission repository repoGetRepoPermissions
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// ---
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// summary: Get repository permissions for a user
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: collaborator
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// in: path
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// description: username of the collaborator
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// type: string
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/RepoCollaboratorPermission"
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// "404":
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// "$ref": "#/responses/notFound"
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// "403":
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// "$ref": "#/responses/forbidden"
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if !ctx.Doer.IsAdmin && ctx.Doer.LoginName != ctx.Params(":collaborator") && !ctx.IsUserRepoAdmin() {
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ctx.Error(http.StatusForbidden, "User", "Only admins can query all permissions, repo admins can query all repo permissions, collaborators can query only their own")
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return
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}
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collaborator, err := user_model.GetUserByName(ctx, ctx.Params(":collaborator"))
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if err != nil {
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if user_model.IsErrUserNotExist(err) {
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ctx.Error(http.StatusNotFound, "GetUserByName", err)
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} else {
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ctx.Error(http.StatusInternalServerError, "GetUserByName", err)
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}
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return
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}
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permission, err := access_model.GetUserRepoPermission(ctx, ctx.Repo.Repository, collaborator)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "GetUserRepoPermission", err)
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return
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}
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ctx.JSON(http.StatusOK, convert.ToUserAndPermission(ctx, collaborator, ctx.ContextUser, permission.AccessMode))
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}
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// GetReviewers return all users that can be requested to review in this repo
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func GetReviewers(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/reviewers repository repoGetReviewers
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// ---
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// summary: Return all users that can be requested to review in this repo
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/UserList"
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reviewers, err := repo_model.GetReviewers(ctx, ctx.Repo.Repository, ctx.Doer.ID, 0)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "ListCollaborators", err)
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return
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}
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ctx.JSON(http.StatusOK, convert.ToUsers(ctx, ctx.Doer, reviewers))
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}
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// GetAssignees return all users that have write access and can be assigned to issues
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func GetAssignees(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/assignees repository repoGetAssignees
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// ---
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// summary: Return all users that have write access and can be assigned to issues
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/UserList"
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assignees, err := repo_model.GetRepoAssignees(ctx, ctx.Repo.Repository)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "ListCollaborators", err)
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return
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}
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ctx.JSON(http.StatusOK, convert.ToUsers(ctx, ctx.Doer, assignees))
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}
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