Notifications (#34)

Notifications working for:

* Mentions
* Faves
* New follow requests
* New followers

internal/api/client/notification/notificationsget.go

@@ -0,0 +1,72 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package notification
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+func (m *Module) NotificationsGETHandler(c *gin.Context) {
+	l := m.log.WithFields(logrus.Fields{
+		"func":        "NotificationsGETHandler",
+		"request_uri": c.Request.RequestURI,
+		"user_agent":  c.Request.UserAgent(),
+		"origin_ip":   c.ClientIP(),
+	})
+	l.Debugf("entering function")
+
+	authed, err := oauth.Authed(c, true, true, true, true) // we don't really need an app here but we want everything else
+	if err != nil {
+		l.Errorf("error authing status faved by request: %s", err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": "not authed"})
+		return
+	}
+
+	limit := 20
+	limitString := c.Query(LimitKey)
+	if limitString != "" {
+		i, err := strconv.ParseInt(limitString, 10, 64)
+		if err != nil {
+			l.Debugf("error parsing limit string: %s", err)
+			c.JSON(http.StatusBadRequest, gin.H{"error": "couldn't parse limit query param"})
+			return
+		}
+		limit = int(i)
+	}
+
+	maxID := ""
+	maxIDString := c.Query(MaxIDKey)
+	if maxIDString != "" {
+		maxID = maxIDString
+	}
+
+	notifs, errWithCode := m.processor.NotificationsGet(authed, limit, maxID)
+	if errWithCode != nil {
+		l.Debugf("error processing notifications get: %s", errWithCode.Error())
+		c.JSON(errWithCode.Code(), gin.H{"error": errWithCode.Safe()})
+		return
+	}
+
+	c.JSON(http.StatusOK, notifs)
+}