Share Permissions (#761)

* Share restrictions

* Tweak language, add spec

server/models/Team.js

@@ -17,6 +17,7 @@ const Team = sequelize.define(
     slackId: { type: DataTypes.STRING, allowNull: true },
     googleId: { type: DataTypes.STRING, allowNull: true },
     avatarUrl: { type: DataTypes.STRING, allowNull: true },
+    sharing: { type: DataTypes.BOOLEAN, allowNull: false, defaultValue: true },
     slackData: DataTypes.JSONB,
   },
   {
@@ -39,11 +40,16 @@ const uploadAvatar = async model => {
   const endpoint = publicS3Endpoint();
 
   if (model.avatarUrl && !model.avatarUrl.startsWith(endpoint)) {
-    const newUrl = await uploadToS3FromUrl(
-      model.avatarUrl,
-      `avatars/${model.id}/${uuid.v4()}`
-    );
-    if (newUrl) model.avatarUrl = newUrl;
+    try {
+      const newUrl = await uploadToS3FromUrl(
+        model.avatarUrl,
+        `avatars/${model.id}/${uuid.v4()}`
+      );
+      if (newUrl) model.avatarUrl = newUrl;
+    } catch (err) {
+      // we can try again next time
+      console.error(err);
+    }
   }
 };