156 lines
7.1 KiB
Swift
156 lines
7.1 KiB
Swift
//
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// Copyright (c) 2021 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import SignalServiceKit
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import ZKGroup
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public struct GroupsV2Request {
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let urlString: String
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let method: HTTPMethod
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let bodyData: Data?
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let headers = OWSHttpHeaders()
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func addHeader(_ header: String, value: String) {
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headers.addHeader(header, value: value, overwriteOnConflict: true)
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}
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}
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// MARK: -
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public extension StorageService {
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typealias ProfileKeyCredentialMap = [UUID: ProfileKeyCredential]
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static func buildNewGroupRequest(groupProto: GroupsProtoGroup,
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groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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let protoData = try groupProto.serializedData()
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return try buildGroupV2Request(protoData: protoData,
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urlString: "/v1/groups/",
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method: .put,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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static func buildUpdateGroupRequest(groupChangeProto: GroupsProtoGroupChangeActions,
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groupV2Params: GroupV2Params,
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authCredential: AuthCredential,
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groupInviteLinkPassword: Data?) throws -> GroupsV2Request {
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var urlString = "/v1/groups/"
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if let groupInviteLinkPassword = groupInviteLinkPassword {
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urlString += "?inviteLinkPassword=\(groupInviteLinkPassword.asBase64Url)"
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}
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let protoData = try groupChangeProto.serializedData()
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return try buildGroupV2Request(protoData: protoData,
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urlString: urlString,
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method: .patch,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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static func buildFetchCurrentGroupV2SnapshotRequest(groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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return try buildGroupV2Request(protoData: nil,
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urlString: "/v1/groups/",
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method: .get,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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static func buildFetchGroupChangeActionsRequest(groupV2Params: GroupV2Params,
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fromRevision: UInt32,
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requireSnapshotForFirstChange: Bool,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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// GroupsV2 TODO: Apply GroupManager.changeProtoEpoch.
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// GroupsV2 TODO: Apply requireSnapshotForFirstChange.
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let urlPath = "/v1/groups/logs/\(fromRevision)"
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return try buildGroupV2Request(protoData: nil,
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urlString: urlPath,
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method: .get,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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static func buildGroupAvatarUploadFormRequest(groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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let urlPath = "/v1/groups/avatar/form"
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return try buildGroupV2Request(protoData: nil,
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urlString: urlPath,
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method: .get,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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// inviteLinkPassword is not necessary if we're already a member or have a pending request.
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static func buildFetchGroupInviteLinkPreviewRequest(inviteLinkPassword: Data?,
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groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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var urlPath = "/v1/groups/join/"
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if let inviteLinkPassword = inviteLinkPassword {
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urlPath += "\(inviteLinkPassword.asBase64Url)"
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}
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return try buildGroupV2Request(protoData: nil,
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urlString: urlPath,
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method: .get,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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static func buildFetchGroupExternalCredentials(groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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return try buildGroupV2Request(protoData: nil,
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urlString: "/v1/groups/token",
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method: .get,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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}
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private static func buildGroupV2Request(protoData: Data?,
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urlString: String,
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method: HTTPMethod,
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groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws -> GroupsV2Request {
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let request = GroupsV2Request(urlString: urlString, method: method, bodyData: protoData)
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// The censorship circumvention reflectors require a Content-Type
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// even if the body is empty.
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request.addHeader("Content-Type", value: OWSMimeTypeProtobuf)
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try self.addAuthorizationHeader(to: request,
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groupV2Params: groupV2Params,
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authCredential: authCredential)
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return request
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}
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// MARK: - Authorization Headers
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private static func addAuthorizationHeader(to request: GroupsV2Request,
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groupV2Params: GroupV2Params,
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authCredential: AuthCredential) throws {
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let serverPublicParams = try GroupsV2Protos.serverPublicParams()
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let clientZkAuthOperations = ClientZkAuthOperations(serverPublicParams: serverPublicParams)
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let authCredentialPresentation = try clientZkAuthOperations.createAuthCredentialPresentation(groupSecretParams: groupV2Params.groupSecretParams, authCredential: authCredential)
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let authCredentialPresentationData = authCredentialPresentation.serialize().asData
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let username: String = groupV2Params.groupPublicParamsData.hexadecimalString
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let password: String = authCredentialPresentationData.hexadecimalString
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let auth = Auth(username: username, password: password)
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request.addHeader("Authorization", value: try auth.authHeader())
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}
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}
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