Follow request improvements (#282)

* tiny doc update

* add rejectfollowrequest to db

* add follow request reject to processor

* add reject handler

* tidy up follow request api

* tidy up federation call

* regenerate swagger docs

* api endpoint tests

* processor test

* add reject federatingdb handler

* start writing reject tests

* test reject follow request

* go fmt

* increase sleep for slow test setups

* more relaxed time.sleep

internal/api/client/followrequest/authorize.go

@@ -0,0 +1,99 @@
+/*
+   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 followrequest
+
+import (
+	"github.com/sirupsen/logrus"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+// FollowRequestAuthorizePOSTHandler swagger:operation POST /api/v1/follow_requests/{account_id}/authorize authorizeFollowRequest
+//
+// Accept/authorize follow request from the given account ID.
+//
+// Accept a follow request and put the requesting account in your 'followers' list.
+//
+// ---
+// tags:
+// - follow_requests
+//
+// produces:
+// - application/json
+//
+// parameters:
+// - name: account_id
+//   type: string
+//   description: ID of the account requesting to follow you.
+//   in: path
+//   required: true
+//
+// security:
+// - OAuth2 Bearer:
+//   - write:follows
+//
+// responses:
+//   '200':
+//     name: account relationship
+//     description: Your relationship to this account.
+//     schema:
+//       "$ref": "#/definitions/accountRelationship"
+//   '400':
+//      description: bad request
+//   '401':
+//      description: unauthorized
+//   '403':
+//      description: forbidden
+//   '404':
+//      description: not found
+//   '500':
+//      description: internal server error
+func (m *Module) FollowRequestAuthorizePOSTHandler(c *gin.Context) {
+	l := logrus.WithField("func", "FollowRequestAuthorizePOSTHandler")
+
+	authed, err := oauth.Authed(c, true, true, true, true)
+	if err != nil {
+		l.Debugf("couldn't auth: %s", err)
+		c.JSON(http.StatusUnauthorized, gin.H{"error": err.Error()})
+		return
+	}
+
+	if authed.User.Disabled || !authed.User.Approved || !authed.Account.SuspendedAt.IsZero() {
+		l.Debugf("couldn't auth: %s", err)
+		c.JSON(http.StatusForbidden, gin.H{"error": "account is disabled, not yet approved, or suspended"})
+		return
+	}
+
+	originAccountID := c.Param(IDKey)
+	if originAccountID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "no follow request origin account id provided"})
+		return
+	}
+
+	relationship, errWithCode := m.processor.FollowRequestAccept(c.Request.Context(), authed, originAccountID)
+	if errWithCode != nil {
+		l.Debug(errWithCode.Error())
+		c.JSON(errWithCode.Code(), gin.H{"error": errWithCode.Safe()})
+		return
+	}
+
+	c.JSON(http.StatusOK, relationship)
+}