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41 lines
2.2 KiB
Diff
41 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aishwarya Mallampati <amallampati@google.com>
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Date: Wed, 10 May 2023 21:54:43 +0000
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Subject: [PATCH] Update file permissions using canonical path
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Bug: 264880895
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Bug: 264880689
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Test: atest android.telephonyprovider.cts.MmsPartTest
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atest CtsTelephonyTestCases
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Sanity check - sending and receiving sms and mms manually
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(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:6743638a096c32627f398efd2ea78f08b8a2db8c)
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Merged-In: I8dd888ea31ec07c9f0de38eb8e8170d3ed255686
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Change-Id: I8dd888ea31ec07c9f0de38eb8e8170d3ed255686
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---
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src/com/android/providers/telephony/MmsProvider.java | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/src/com/android/providers/telephony/MmsProvider.java b/src/com/android/providers/telephony/MmsProvider.java
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index 6ba775ba..7546c246 100644
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--- a/src/com/android/providers/telephony/MmsProvider.java
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+++ b/src/com/android/providers/telephony/MmsProvider.java
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@@ -819,15 +819,16 @@ public class MmsProvider extends ContentProvider {
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String path = getContext().getDir(PARTS_DIR_NAME, 0).getPath() + '/' +
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uri.getPathSegments().get(1);
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try {
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+ File canonicalFile = new File(path).getCanonicalFile();
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String partsDirPath = getContext().getDir(PARTS_DIR_NAME, 0).getCanonicalPath();
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- if (!new File(path).getCanonicalPath().startsWith(partsDirPath)) {
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+ if (!canonicalFile.getPath().startsWith(partsDirPath + '/')) {
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EventLog.writeEvent(0x534e4554, "240685104",
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Binder.getCallingUid(), (TAG + " update: path " + path +
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" does not start with " + partsDirPath));
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return 0;
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}
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// Reset the file permission back to read for everyone but me.
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- Os.chmod(path, 0644);
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+ Os.chmod(canonicalFile.getPath(), 0644);
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if (LOCAL_LOGV) {
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Log.d(TAG, "MmsProvider.update chmod is successful for path: " + path);
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}
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