diff --git a/services/web/app/coffee/Features/Collaborators/CollaboratorsHandler.coffee b/services/web/app/coffee/Features/Collaborators/CollaboratorsHandler.coffee
index 4ab855af80..d574a0b263 100644
--- a/services/web/app/coffee/Features/Collaborators/CollaboratorsHandler.coffee
+++ b/services/web/app/coffee/Features/Collaborators/CollaboratorsHandler.coffee
@@ -6,8 +6,48 @@ logger = require('logger-sharelatex')
 UserGetter = require "../User/UserGetter"
 ContactManager = require "../Contacts/ContactManager"
 CollaboratorsEmailHandler = require "./CollaboratorsEmailHandler"
+async = require "async"
 
 module.exports = CollaboratorsHandler =
+	getMemberIdsWithPrivilegeLevels: (project_id, callback = (error, members) ->) ->
+		Project.findOne { _id: project_id }, { collaberator_refs: 1, readOnly_refs: 1 }, (error, project) ->
+			return callback(error) if error?
+			return callback null, null if !project?
+			members = []
+			for member_id in project.readOnly_refs or []
+				members.push { id: member_id, privilegeLevel: "readOnly" }
+			for member_id in project.collaberator_refs or []
+				members.push { id: member_id, privilegeLevel: "readAndWrite" }
+			return callback null, members
+	
+	getMembersWithPrivilegeLevels: (project_id, callback = (error, members) ->) ->
+		CollaboratorsHandler.getMemberIdsWithPrivilegeLevels project_id, (error, members) ->
+			return callback(error) if error?
+			async.mapLimit (members or []), 3,
+				(member, cb) ->
+					UserGetter.getUser member.id, (error, user) ->
+						return cb(error) if error?
+						return cb(null, { user: user, privilegeLevel: member.privilegeLevel })
+				callback 
+	
+	getMemberCount: (project_id, callback = (error, count) ->) ->
+		CollaboratorsHandler.getMemberIdsWithPrivilegeLevels project_id, (error, members) ->
+			return callback(error) if error?
+			return callback null, (members or []).length
+
+	isUserMemberOfProject: (user_id, project_id, callback = (error, isMember, privilegeLevel) ->) ->
+		CollaboratorsHandler.getMemberIdsWithPrivilegeLevels project_id, (error, members) ->
+			return callback(error) if error?
+			for member in members or []
+				if member.id.toString() == user_id.toString()
+					return callback null, true, member.privilegeLevel
+			return callback null, false, null
+			
+	getProjectsUserIsMemberOf: (user_id, fields, callback = (error, readAndWriteProjects, readOnlyProjects) ->) ->
+		Project.find {collaberator_refs:user_id}, fields, (err, readAndWriteProjects)=>
+			Project.find {readOnly_refs:user_id}, fields, (err, readOnlyProjects)=>
+				callback(err, readAndWriteProjects, readOnlyProjects)
+		
 	removeUserFromProject: (project_id, user_id, callback = (error) ->)->
 		logger.log user_id: user_id, project_id: project_id, "removing user"
 		conditions = _id:project_id
diff --git a/services/web/test/UnitTests/coffee/Collaborators/CollaboratorsHandlerTests.coffee b/services/web/test/UnitTests/coffee/Collaborators/CollaboratorsHandlerTests.coffee
index 1fd3a0c2d5..631559b84e 100644
--- a/services/web/test/UnitTests/coffee/Collaborators/CollaboratorsHandlerTests.coffee
+++ b/services/web/test/UnitTests/coffee/Collaborators/CollaboratorsHandlerTests.coffee
@@ -22,6 +22,93 @@ describe "CollaboratorsHandler", ->
 		@adding_user_id = "adding-user-id"
 		@email = "joe@sharelatex.com"
 		@callback = sinon.stub()
+	
+	describe "getMemberIdsWithPrivilegeLevels", ->
+		beforeEach ->
+			@Project.findOne = sinon.stub()
+			@Project.findOne.withArgs({_id: @project_id}, {collaberator_refs: 1, readOnly_refs: 1}).yields(null, @project = {
+				readOnly_refs: [ "read-only-ref-1", "read-only-ref-2" ]
+				collaberator_refs: [ "read-write-ref-1", "read-write-ref-2" ]
+			})
+			@CollaboratorHandler.getMemberIdsWithPrivilegeLevels @project_id, @callback
+
+		it "should return an array of member ids with their privilege levels", ->
+			@callback
+				.calledWith(null, [
+					{ id: "read-only-ref-1", privilegeLevel: "readOnly" }
+					{ id: "read-only-ref-2", privilegeLevel: "readOnly" }
+					{ id: "read-write-ref-1", privilegeLevel: "readAndWrite" }
+					{ id: "read-write-ref-2", privilegeLevel: "readAndWrite" }
+				])
+				.should.equal true
+	
+	describe "getMembersWithPrivilegeLevels", ->
+		beforeEach ->
+			@CollaboratorHandler.getMemberIdsWithPrivilegeLevels = sinon.stub()
+			@CollaboratorHandler.getMemberIdsWithPrivilegeLevels.withArgs(@project_id).yields(null, [
+				{ id: "read-only-ref-1", privilegeLevel: "readOnly" }
+				{ id: "read-only-ref-2", privilegeLevel: "readOnly" }
+				{ id: "read-write-ref-1", privilegeLevel: "readAndWrite" }
+				{ id: "read-write-ref-2", privilegeLevel: "readAndWrite" }
+			])
+			@UserGetter.getUser = sinon.stub()
+			@UserGetter.getUser.withArgs("read-only-ref-1").yields(null, { _id: "read-only-ref-1" })
+			@UserGetter.getUser.withArgs("read-only-ref-2").yields(null, { _id: "read-only-ref-2" })
+			@UserGetter.getUser.withArgs("read-write-ref-1").yields(null, { _id: "read-write-ref-1" })
+			@UserGetter.getUser.withArgs("read-write-ref-2").yields(null, { _id: "read-write-ref-2" })
+			@CollaboratorHandler.getMembersWithPrivilegeLevels @project_id, @callback
+		
+		it "should return an array of members with their privilege levels", ->
+			@callback
+				.calledWith(undefined, [
+					{ user: { _id: "read-only-ref-1" }, privilegeLevel: "readOnly" }
+					{ user: { _id: "read-only-ref-2" }, privilegeLevel: "readOnly" }
+					{ user: { _id: "read-write-ref-1" }, privilegeLevel: "readAndWrite" }
+					{ user: { _id: "read-write-ref-2" }, privilegeLevel: "readAndWrite" }
+				])
+				.should.equal true
+	
+	describe "isUserMemberOfProject", ->
+		beforeEach ->
+			@CollaboratorHandler.getMemberIdsWithPrivilegeLevels = sinon.stub()
+
+		describe "when user is a member of the project", ->
+			beforeEach ->
+				@CollaboratorHandler.getMemberIdsWithPrivilegeLevels.withArgs(@project_id).yields(null, [
+					{ id: "not-the-user", privilegeLevel: "readOnly" }
+					{ id: @user_id, privilegeLevel: "readAndWrite" }
+				])
+				@CollaboratorHandler.isUserMemberOfProject @user_id, @project_id, @callback
+			
+			it "should return true and the privilegeLevel", ->
+				@callback
+					.calledWith(null, true, "readAndWrite")
+					.should.equal true
+
+		describe "when user is not a member of the project", ->
+			beforeEach ->
+				@CollaboratorHandler.getMemberIdsWithPrivilegeLevels.withArgs(@project_id).yields(null, [
+					{ id: "not-the-user", privilegeLevel: "readOnly" }
+				])
+				@CollaboratorHandler.isUserMemberOfProject @user_id, @project_id, @callback
+			
+			it "should return false", ->
+				@callback
+					.calledWith(null, false, null)
+					.should.equal true
+	
+	describe "getProjectsUserIsMemberOf", ->
+		beforeEach ->
+			@fields = "mock fields"
+			@Project.find = sinon.stub()
+			@Project.find.withArgs({collaberator_refs:@user_id}, @fields).yields(null, ["mock-read-write-project-1", "mock-read-write-project-2"])
+			@Project.find.withArgs({readOnly_refs:@user_id}, @fields).yields(null, ["mock-read-only-project-1", "mock-read-only-project-2"])
+			@CollaboratorHandler.getProjectsUserIsMemberOf @user_id, @fields, @callback
+		
+		it "should call the callback with the projects", ->
+			@callback
+				.calledWith(null, ["mock-read-write-project-1", "mock-read-write-project-2"], ["mock-read-only-project-1", "mock-read-only-project-2"])
+				.should.equal true
 
 	describe "removeUserFromProject", ->
 		beforeEach ->