From d7b0424c755cf7773b25fa18c32bce6a92bcfb22 Mon Sep 17 00:00:00 2001
From: Matthew Chen <charlesmchen@gmail.com>
Date: Fri, 3 Nov 2017 11:20:15 -0400
Subject: [PATCH] Don't back up profile pics, attachments or gifs.

// FREEBIE
---
 Signal/src/Profiles/OWSProfileManager.m                | 10 ++++++++++
 Signal/src/network/GiphyDownloader.swift               |  6 ++++++
 .../src/Messages/Attachments/TSAttachmentStream.m      | 10 ++++++++++
 3 files changed, 26 insertions(+)

diff --git a/Signal/src/Profiles/OWSProfileManager.m b/Signal/src/Profiles/OWSProfileManager.m
index 57bdbf215..92a69421f 100644
--- a/Signal/src/Profiles/OWSProfileManager.m
+++ b/Signal/src/Profiles/OWSProfileManager.m
@@ -1408,6 +1408,16 @@ const NSUInteger kOWSProfileManager_MaxAvatarDiameter = 640;
                 DDLogError(@"Failed to create profile avatars directory: %@", error);
             }
         }
+
+        NSURL *dirURL = [NSURL fileURLWithPath:profileAvatarsDirPath];
+        NSError *error = nil;
+        [dirURL setResourceValues:@{
+            NSURLIsExcludedFromBackupKey : @(YES),
+        }
+                            error:&error];
+        if (error) {
+            OWSFail(@"Failed to exclude profile avatars directory from backup: %@", error);
+        }
     });
     return profileAvatarsDirPath;
 }
diff --git a/Signal/src/network/GiphyDownloader.swift b/Signal/src/network/GiphyDownloader.swift
index 4ec87f95d..8c781fcdc 100644
--- a/Signal/src/network/GiphyDownloader.swift
+++ b/Signal/src/network/GiphyDownloader.swift
@@ -842,6 +842,12 @@ extension URLSessionTask {
                                                 attributes:nil)
                 gifFolderPath = dirPath
             }
+
+            // Don't back up Giphy downloads.
+            var dirURL = NSURL.fileURL(withPath:dirPath)
+            var resourceValues = URLResourceValues()
+            resourceValues.isExcludedFromBackup = true
+            try dirURL.setResourceValues(resourceValues)
         } catch let error as NSError {
             owsFail("\(GiphyAsset.TAG) ensureTempFolder failed: \(dirPath), \(error)")
             gifFolderPath = tempDirPath
diff --git a/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m b/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m
index 7f7fa85db..3d6812d76 100644
--- a/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m
+++ b/SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m
@@ -204,6 +204,16 @@ NS_ASSUME_NONNULL_BEGIN
                 DDLogError(@"Failed to create attachments directory: %@", error);
             }
         }
+
+        NSURL *dirURL = [NSURL fileURLWithPath:attachmentsFolder];
+        NSError *error = nil;
+        [dirURL setResourceValues:@{
+            NSURLIsExcludedFromBackupKey : @(YES),
+        }
+                            error:&error];
+        if (error) {
+            OWSFail(@"Failed to exclude attachments directory from backup: %@", error);
+        }
     });
     return attachmentsFolder;
 }