90 lines
3.5 KiB
Swift
90 lines
3.5 KiB
Swift
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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extension OutgoingMessagePreparer {
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@objc
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public convenience init(messageBody: MessageBody?,
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mediaAttachments: [SignalAttachment],
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thread: TSThread,
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quotedReplyModel: OWSQuotedReplyModel?,
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transaction: SDSAnyReadTransaction) {
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var attachments = mediaAttachments
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let truncatedText: String?
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let bodyRanges: MessageBodyRanges?
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if let messageBody = messageBody, !messageBody.text.isEmpty {
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if messageBody.text.lengthOfBytes(using: .utf8) >= kOversizeTextMessageSizeThreshold {
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truncatedText = messageBody.text.truncated(toByteCount: kOversizeTextMessageSizeThreshold)
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bodyRanges = messageBody.ranges
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if let dataSource = DataSourceValue.dataSource(withOversizeText: messageBody.text) {
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let attachment = SignalAttachment.attachment(dataSource: dataSource,
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dataUTI: kOversizeTextAttachmentUTI)
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attachments.append(attachment)
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} else {
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owsFailDebug("dataSource was unexpectedly nil")
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}
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} else {
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truncatedText = messageBody.text
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bodyRanges = messageBody.ranges
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}
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} else {
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truncatedText = nil
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bodyRanges = nil
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}
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let expiresInSeconds: UInt32
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if let configuration = OWSDisappearingMessagesConfiguration.anyFetch(uniqueId: thread.uniqueId,
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transaction: transaction),
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configuration.isEnabled {
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expiresInSeconds = configuration.durationSeconds
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} else {
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expiresInSeconds = 0
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}
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if _isDebugAssertConfiguration() {
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for attachment in attachments {
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assert(!attachment.hasError)
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assert(attachment.mimeType.count > 0)
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}
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}
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let isVoiceMessage = attachments.count == 1 && attachments.last?.isVoiceMessage == true
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var isViewOnceMessage = false
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for attachment in mediaAttachments {
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if attachment.isViewOnceAttachment {
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assert(mediaAttachments.count == 1)
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isViewOnceMessage = true
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break
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}
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if attachment.isBorderless {
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assert(mediaAttachments.count == 1)
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break
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}
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}
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// Discard quoted reply for view-once messages.
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let quotedMessage: TSQuotedMessage? = (isViewOnceMessage
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? nil
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: quotedReplyModel?.buildQuotedMessageForSending())
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let message = TSOutgoingMessageBuilder(thread: thread,
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messageBody: truncatedText,
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bodyRanges: bodyRanges,
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expiresInSeconds: expiresInSeconds,
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isVoiceMessage: isVoiceMessage,
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quotedMessage: quotedMessage,
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isViewOnceMessage: isViewOnceMessage).build()
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let attachmentInfos = attachments.map { $0.buildOutgoingAttachmentInfo(message: message) }
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self.init(message, unsavedAttachmentInfos: attachmentInfos)
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}
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}
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