344 lines
8.4 KiB
Go
344 lines
8.4 KiB
Go
package api
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import (
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"errors"
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"github.com/gin-gonic/gin"
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"github.com/gotify/location"
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"github.com/gotify/server/auth"
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"github.com/gotify/server/model"
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"github.com/h2non/filetype"
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)
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// The ApplicationDatabase interface for encapsulating database access.
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type ApplicationDatabase interface {
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CreateApplication(application *model.Application) error
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GetApplicationByToken(token string) *model.Application
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GetApplicationByID(id uint) *model.Application
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GetApplicationsByUser(userID uint) []*model.Application
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DeleteApplicationByID(id uint) error
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UpdateApplication(application *model.Application) error
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}
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// The ApplicationAPI provides handlers for managing applications.
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type ApplicationAPI struct {
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DB ApplicationDatabase
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ImageDir string
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}
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// CreateApplication creates an application and returns the access token.
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// swagger:operation POST /application application createApp
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//
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// Create an application.
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//
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// ---
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// consumes: [application/json]
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// produces: [application/json]
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// security:
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// - clientTokenHeader: []
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// - clientTokenQuery: []
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// - basicAuth: []
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// parameters:
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// - name: body
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// in: body
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// description: the application to add
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// required: true
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// schema:
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// $ref: "#/definitions/Application"
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// responses:
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// 200:
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// description: Ok
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// schema:
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// $ref: "#/definitions/Application"
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// 400:
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// description: Bad Request
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// schema:
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// $ref: "#/definitions/Error"
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// 401:
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// description: Unauthorized
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// schema:
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// $ref: "#/definitions/Error"
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// 403:
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// description: Forbidden
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// schema:
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// $ref: "#/definitions/Error"
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func (a *ApplicationAPI) 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.Token = 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, withAbsoluteURL(ctx, &app))
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}
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}
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// GetApplications returns all applications a user has.
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// swagger:operation GET /application application getApps
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//
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// Return all applications.
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//
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// ---
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// consumes: [application/json]
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// produces: [application/json]
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// security:
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// - clientTokenHeader: []
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// - clientTokenQuery: []
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// - basicAuth: []
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// responses:
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// 200:
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// description: Ok
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// schema:
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// type: array
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// items:
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// $ref: "#/definitions/Application"
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// 401:
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// description: Unauthorized
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// schema:
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// $ref: "#/definitions/Error"
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// 403:
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// description: Forbidden
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// schema:
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// $ref: "#/definitions/Error"
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func (a *ApplicationAPI) 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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for _, app := range apps {
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withAbsoluteURL(ctx, app)
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}
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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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// swagger:operation DELETE /application/{id} application deleteApp
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//
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// Delete an application.
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//
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// ---
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// consumes: [application/json]
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// produces: [application/json]
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// parameters:
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// - name: id
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// in: path
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// description: the application id
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// required: true
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// type: integer
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// security:
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// - clientTokenHeader: []
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// - clientTokenQuery: []
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// - basicAuth: []
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// responses:
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// 200:
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// description: Ok
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// 400:
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// description: Bad Request
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// schema:
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// $ref: "#/definitions/Error"
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// 401:
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// description: Unauthorized
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// schema:
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// $ref: "#/definitions/Error"
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// 403:
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// description: Forbidden
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// schema:
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// $ref: "#/definitions/Error"
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// 404:
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// description: Not Found
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// schema:
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// $ref: "#/definitions/Error"
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func (a *ApplicationAPI) DeleteApplication(ctx *gin.Context) {
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withID(ctx, "id", func(id uint) {
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if app := a.DB.GetApplicationByID(id); app != nil && app.UserID == auth.GetUserID(ctx) {
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a.DB.DeleteApplicationByID(id)
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if app.Image != "" {
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os.Remove(a.ImageDir + app.Image)
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}
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} else {
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ctx.AbortWithError(404, fmt.Errorf("app with id %d doesn't exists", id))
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}
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})
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}
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// UpdateApplication updates an application info by its id.
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// swagger:operation PUT /application/{id} application updateApplication
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//
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// Update info for an application
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//
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// ---
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// consumes: [application/json]
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// produces: [application/json]
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// security:
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// - clientTokenHeader: []
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// - clientTokenQuery: []
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// - basicAuth: []
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// parameters:
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// - name: body
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// in: body
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// description: the application to update
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// required: true
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// schema:
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// $ref: "#/definitions/Application"
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// - name: id
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// in: path
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// description: the application id
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// required: true
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// type: integer
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// responses:
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// 200:
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// description: Ok
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// schema:
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// $ref: "#/definitions/Application"
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// 400:
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// description: Bad Request
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// schema:
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// $ref: "#/definitions/Error"
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// 401:
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// description: Unauthorized
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// schema:
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// $ref: "#/definitions/Error"
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// 403:
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// description: Forbidden
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// schema:
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// $ref: "#/definitions/Error"
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// 404:
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// description: Not Found
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// schema:
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// $ref: "#/definitions/Error"
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func (a *ApplicationAPI) UpdateApplication(ctx *gin.Context) {
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withID(ctx, "id", func(id uint) {
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if app := a.DB.GetApplicationByID(id); app != nil && app.UserID == auth.GetUserID(ctx) {
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newValues := &model.Application{}
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if err := ctx.Bind(newValues); err == nil {
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app.Description = newValues.Description
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app.Name = newValues.Name
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a.DB.UpdateApplication(app)
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ctx.JSON(200, withAbsoluteURL(ctx, app))
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}
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} else {
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ctx.AbortWithError(404, fmt.Errorf("app with id %d doesn't exists", id))
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}
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})
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}
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// UploadApplicationImage uploads an image for an application.
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// swagger:operation POST /application/{id}/image application uploadAppImage
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//
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// Upload an image for an application
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//
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// ---
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// consumes:
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// - multipart/form-data
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// produces: [application/json]
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// security:
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// - clientTokenHeader: []
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// - clientTokenQuery: []
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// - basicAuth: []
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// parameters:
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// - name: file
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// in: formData
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// description: the application image
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// required: true
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// type: file
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// - name: id
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// in: path
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// description: the application id
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// required: true
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// type: integer
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// responses:
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// 200:
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// description: Ok
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// schema:
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// $ref: "#/definitions/Application"
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// 400:
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// description: Bad Request
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// schema:
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// $ref: "#/definitions/Error"
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// 401:
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// description: Unauthorized
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// schema:
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// $ref: "#/definitions/Error"
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// 403:
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// description: Forbidden
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// schema:
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// $ref: "#/definitions/Error"
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// 404:
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// description: Not Found
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// schema:
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// $ref: "#/definitions/Error"
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// 500:
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// description: Server Error
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// schema:
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// $ref: "#/definitions/Error"
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func (a *ApplicationAPI) UploadApplicationImage(ctx *gin.Context) {
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withID(ctx, "id", func(id uint) {
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if app := a.DB.GetApplicationByID(id); app != nil && app.UserID == auth.GetUserID(ctx) {
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file, err := ctx.FormFile("file")
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if err == http.ErrMissingFile {
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ctx.AbortWithError(400, errors.New("file with key 'file' must be present"))
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return
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} else if err != nil {
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ctx.AbortWithError(500, err)
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return
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}
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head := make([]byte, 261)
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open, _ := file.Open()
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open.Read(head)
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if !filetype.IsImage(head) {
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ctx.AbortWithError(400, errors.New("file must be an image"))
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return
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}
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ext := filepath.Ext(file.Filename)
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name := auth.GenerateImageName()
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for exist(a.ImageDir + name + ext) {
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name = auth.GenerateImageName()
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}
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err = ctx.SaveUploadedFile(file, a.ImageDir+name+ext)
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if err != nil {
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ctx.AbortWithError(500, err)
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return
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}
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if app.Image != "" {
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os.Remove(a.ImageDir + app.Image)
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}
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app.Image = name + ext
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a.DB.UpdateApplication(app)
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ctx.JSON(200, withAbsoluteURL(ctx, app))
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} else {
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ctx.AbortWithError(404, fmt.Errorf("client with id %d doesn't exists", id))
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}
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})
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}
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func (a *ApplicationAPI) applicationExists(token string) bool {
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return a.DB.GetApplicationByToken(token) != nil
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}
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func exist(path string) bool {
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if _, err := os.Stat(path); os.IsNotExist(err) {
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return false
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}
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return true
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}
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func withAbsoluteURL(ctx *gin.Context, app *model.Application) *model.Application {
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url := location.Get(ctx)
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if app.Image == "" {
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url.Path = "static/defaultapp.png"
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} else {
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url.Path = "image/" + app.Image
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}
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app.Image = url.String()
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return app
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}
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