Add Pocket authorization flow in the user interface

ui/integration_pocket.go

@@ -0,0 +1,87 @@
+// Copyright 2018 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package ui
+
+import (
+	"net/http"
+
+	"github.com/miniflux/miniflux/http/context"
+	"github.com/miniflux/miniflux/http/response"
+	"github.com/miniflux/miniflux/http/response/html"
+	"github.com/miniflux/miniflux/http/route"
+	"github.com/miniflux/miniflux/integration/pocket"
+	"github.com/miniflux/miniflux/logger"
+	"github.com/miniflux/miniflux/ui/session"
+)
+
+// PocketAuthorize redirects the end-user to Pocket website to authorize the application.
+func (c *Controller) PocketAuthorize(w http.ResponseWriter, r *http.Request) {
+	ctx := context.New(r)
+
+	user, err := c.store.UserByID(ctx.UserID())
+	if err != nil {
+		html.ServerError(w, err)
+		return
+	}
+
+	integration, err := c.store.Integration(user.ID)
+	if err != nil {
+		html.ServerError(w, err)
+		return
+	}
+
+	sess := session.New(c.store, ctx)
+	connector := pocket.NewConnector(integration.PocketConsumerKey)
+	redirectURL := c.cfg.BaseURL() + route.Path(c.router, "pocketCallback")
+	requestToken, err := connector.RequestToken(redirectURL)
+	if err != nil {
+		logger.Error("[Pocket:Authorize] %v", err)
+		sess.NewFlashErrorMessage(c.translator.GetLanguage(ctx.UserLanguage()).Get("Unable to fetch request token from Pocket!"))
+		response.Redirect(w, r, route.Path(c.router, "integrations"))
+		return
+	}
+
+	sess.SetPocketRequestToken(requestToken)
+	response.Redirect(w, r, connector.AuthorizationURL(requestToken, redirectURL))
+}
+
+// PocketCallback saves the personal access token after the authorization step.
+func (c *Controller) PocketCallback(w http.ResponseWriter, r *http.Request) {
+	ctx := context.New(r)
+	sess := session.New(c.store, ctx)
+
+	user, err := c.store.UserByID(ctx.UserID())
+	if err != nil {
+		html.ServerError(w, err)
+		return
+	}
+
+	integration, err := c.store.Integration(user.ID)
+	if err != nil {
+		html.ServerError(w, err)
+		return
+	}
+
+	connector := pocket.NewConnector(integration.PocketConsumerKey)
+	accessToken, err := connector.AccessToken(ctx.PocketRequestToken())
+	if err != nil {
+		logger.Error("[Pocket:Callback] %v", err)
+		sess.NewFlashErrorMessage(c.translator.GetLanguage(ctx.UserLanguage()).Get("Unable to fetch access token from Pocket!"))
+		response.Redirect(w, r, route.Path(c.router, "integrations"))
+		return
+	}
+
+	sess.SetPocketRequestToken("")
+	integration.PocketAccessToken = accessToken
+
+	err = c.store.UpdateIntegration(integration)
+	if err != nil {
+		html.ServerError(w, err)
+		return
+	}
+
+	sess.NewFlashMessage(c.translator.GetLanguage(ctx.UserLanguage()).Get("Your Pocket account is now linked!"))
+	response.Redirect(w, r, route.Path(c.router, "integrations"))
+}