101 lines
2.9 KiB
Go
101 lines
2.9 KiB
Go
package api
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import (
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"fmt"
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"github.com/gin-gonic/gin"
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"github.com/jmattheis/memo/auth"
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"github.com/jmattheis/memo/model"
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)
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// The TokenDatabase interface for encapsulating database access.
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type TokenDatabase interface {
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CreateApplication(application *model.Application) error
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GetApplicationByID(id string) *model.Application
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GetApplicationsByUser(userID uint) []*model.Application
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DeleteApplicationByID(id string) error
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CreateClient(client *model.Client) error
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GetClientByID(id string) *model.Client
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GetClientsByUser(userID uint) []*model.Client
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DeleteClientID(id string) error
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}
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// The TokenAPI provides handlers for managing clients and applications.
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type TokenAPI struct {
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DB TokenDatabase
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}
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// CreateApplication creates an application and returns the access token.
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func (a *TokenAPI) CreateApplication(ctx *gin.Context) {
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app := model.Application{}
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if err := ctx.Bind(&app); err == nil {
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app.ID = generateNotExistingToken(auth.GenerateApplicationToken, a.applicationExists)
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app.UserID = auth.GetUserID(ctx)
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a.DB.CreateApplication(&app)
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ctx.JSON(200, app)
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}
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}
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// CreateClient creates a client and returns the access token.
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func (a *TokenAPI) CreateClient(ctx *gin.Context) {
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client := model.Client{}
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if err := ctx.Bind(&client); err == nil {
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client.ID = generateNotExistingToken(auth.GenerateClientToken, a.clientExists)
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client.UserID = auth.GetUserID(ctx)
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a.DB.CreateClient(&client)
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ctx.JSON(200, client)
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}
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}
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// GetApplications returns all applications a user has.
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func (a *TokenAPI) GetApplications(ctx *gin.Context) {
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userID := auth.GetUserID(ctx)
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apps := a.DB.GetApplicationsByUser(userID)
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ctx.JSON(200, apps)
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}
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// GetClients returns all clients a user has.
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func (a *TokenAPI) GetClients(ctx *gin.Context) {
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userID := auth.GetUserID(ctx)
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apps := a.DB.GetClientsByUser(userID)
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ctx.JSON(200, apps)
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}
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// DeleteApplication deletes an application by its id.
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func (a *TokenAPI) DeleteApplication(ctx *gin.Context) {
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appID := ctx.Param("id")
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if app := a.DB.GetApplicationByID(appID); app != nil && app.UserID == auth.GetUserID(ctx) {
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a.DB.DeleteApplicationByID(appID)
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} else {
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ctx.AbortWithError(404, fmt.Errorf("app with id %s doesn't exists", appID))
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}
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}
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// DeleteClient deletes a client by its id.
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func (a *TokenAPI) DeleteClient(ctx *gin.Context) {
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clientID := ctx.Param("id")
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if client := a.DB.GetClientByID(clientID); client != nil && client.UserID == auth.GetUserID(ctx) {
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a.DB.DeleteClientID(clientID)
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} else {
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ctx.AbortWithError(404, fmt.Errorf("client with id %s doesn't exists", clientID))
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}
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}
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func (a *TokenAPI) applicationExists(appID string) bool {
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return a.DB.GetApplicationByID(appID) != nil
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}
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func (a *TokenAPI) clientExists(clientID string) bool {
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return a.DB.GetClientByID(clientID) != nil
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}
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func generateNotExistingToken(generateToken func() string, tokenExists func(token string) bool) string {
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for {
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token := generateToken()
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if !tokenExists(token) {
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return token
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}
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}
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}
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