[Xposed Mod] Bypass Exchange Security Policy for Nexus devices and other AOSP ROMs

shantzg001 · Oct 14, 2013

This mod should be used along with Xposed ( http://xdaforums.com/showthread.php?t=1574401 ).

This mod will bypass the Email app from becoming device admin for your phone and prevent it from setting up any security restrictions on your device including pin/password/remote wipe, etc. There are a couple of other mods out there none of which work right now (1 doesn't work at all and 1 doesn't work for N4 4.3)

Instructions for users
- Remove your existing email account from phone and reboot
- Install Xposed installer (from link above)
- Install this mod (Download apk from here: https://github.com/shantanugoel/Exc...geBypassForXposed/ExchangeBypassForXposed.apk )
- Enable the mod in xposed (Preferences for other devices/versions coming Soon)
- Reboot
- Add your email account again. This time, it will ask you that the email
might require security restrictions, say yes to it but it will never actually set the restrictions.
- Done.

Instructions for developers
- Read the xda link at the top and go through basics of xposed development
- Install xposed as an android sdk addon on your system
- Clone this git repo
- Import in Android Studio
- Make changes
- Build

Credits:
- rovo89 from xda (for creating xposed)
- mpcjanssen from xda (for original mod)

Source code: https://github.com/shantanugoel/ExchangeBypassXposed
Apk: https://github.com/shantanugoel/Exc...geBypassForXposed/ExchangeBypassForXposed.apk
My website: http://tech.shantanugoel.com/
My twitter: http://twitter.com/shantanugoel

Feel free to ask your questions, provide feedback here, or my website or on my twitter.

Changelog:
1.6 26-Jan-14
Cleanup. Remove Security Policy changed notification.

1.5 22-Dec-13
Allow updation of policy keys properly on Exchange server's request otherwise sync may hang

1.4 16-Dec-13
Fixing the fixes

1.3 15-Dec-13
Fixed random email app crashes

1.2 14-Dec-13
AOSP ROMs support. Removed some unnecessary logging.

1.1 28-Nov-13
KitKat support. Tested on Nexus 4, Nexus 5, Nexus 7 2012, Nexus 7 2013

1.0 14-Oct-13
Initial version. Working for Nexus 4 Android 4.3

shantzg001 · Nov 24, 2013

Update: This has now been tested to work successfully on all stock or nearly stock JellyBean (4.3) and KitKat (4.4) ROMs on Nexus 4 / Nexus 5 / Nexus 7

shantzg001 · Nov 25, 2013

A beta with some additional checks for Android 4.4 and also compiled with 4.4 SDK. Please try it on your phones (even on 4.3 to make sure that compatibility remains fine for older phones) and let me know.

shantzg001 · Nov 28, 2013

Thanks folks who tested the beta. Have now removed the beta link and the release version can be installed from links given in OP or within the xposed module downloader.

kurniawan77 · Nov 29, 2013

X- actly what I was looking for!!!!!

Sent from my Nexus 4 using Tapatalk

shantzg001 · Dec 14, 2013

Version 1.2 is out with support of AOSP based ROMs (Thanks to adumont)

shantzg001 · Dec 15, 2013

Some folks have been facing random email app crashes when using this mod. Could you please try out the attached beta version that should hopefully fix this?

Removed the beta. Please update to latest version through xposed repo or github.

Ipse_Tase · Dec 17, 2013

Does this work with TouchDown as well or just Exchange? My company decided (in its infinite IT wisdom) to use this app instead of the built in Exchange client.

https://play.google.com/store/apps/details?id=com.nitrodesk.droid20.nitroid&hl=en

It would be AWESOME if it did.

GuestK00208 · Dec 18, 2013

Hi! I followed the instructions, and the email app hangs at "syncing folders". I don't get a crash, it just stalls on "email is waiting to sync" or whatever that prompt is.

Nexus 5
4.4.2 stock
rooted
Other modules: GravityBox, Greenify

Thoughts? Anything additional I can provide? Thanks for your hard work!

veabers · Dec 19, 2013

Same problem, syncing hangs

Dolfan058 said:
Hi! I followed the instructions, and the email app hangs at "syncing folders". I don't get a crash, it just stalls on "email is waiting to sync" or whatever that prompt is.

I am having the problem where email on the account doesn't ever sync and just hangs.

Nexus 5
KitKat 4.4.2
Modules: GravityBox

shantzg001 · Dec 19, 2013

Ipse_Tase said:
Does this work with TouchDown as well or just Exchange? My company decided (in its infinite IT wisdom) to use this app instead of the built in Exchange client.

https://play.google.com/store/apps/details?id=com.nitrodesk.droid20.nitroid&hl=en

It would be AWESOME if it did.

No, only built in app.

Dolfan058 said:
Hi! I followed the instructions, and the email app hangs at "syncing folders". I don't get a crash, it just stalls on "email is waiting to sync" or whatever that prompt is.

Nexus 5
4.4.2 stock
rooted
Other modules: GravityBox, Greenify

Thoughts? Anything additional I can provide? Thanks for your hard work!

veabers said:
I am having the problem where email on the account doesn't ever sync and just hangs.

Nexus 5
KitKat 4.4.2
Modules: GravityBox

Could you please post logcat logs when this happens?

panni · Dec 20, 2013

Thank you. Works flawlessly on maguro SlimBean stable.

veabers · Dec 20, 2013

logcat for sync hanging

shantzg001 said:
Could you please post logcat logs when this happens?

This looks to be the relevant section. I sanitized my email.

12-20 11:19:59.875 D/GoogleServicesManager(31716): setState: sync = true, wantedSyncState = true
12-20 11:19:59.875 D/GoogleServicesManager(31716): Enabling sync
12-20 11:19:59.905 D/SyncManager( 807): failed sync operation XXXX@XXXX.com u0 (com.google.android.exchange), com.google.android.email.provider, SERVER, latestRunTime 47454987, reason: AutoSync, SyncResult: syncAlreadyInProgress: true stats []
12-20 11:19:59.985 E/qcom_sensors_hal( 807): hal_process_report_ind: Bad item quality: 11
12-20 11:20:05.505 E/Exchange(20156): Sync: Unknown status: 144
12-20 11:20:05.505 E/Exchange(20156): CommandStatusException: 144
12-20 11:20:05.695 W/ContextImpl(20156): Implicit intents with startService are not safe: Intent { act=com.google.android.email.POLICY_INTENT } android.content.ContextWrapper.bindService:517 com.android.emailcommon.service.ServiceProxy.setTask:170 com.android.emailcommon.service.PolicyServiceProxy.setAccountPolicy:73
12-20 11:20:05.725 D/dalvikvm(20156): GC_CONCURRENT freed 383K, 3% free 18181K/18660K, paused 16ms+1ms, total 58ms
12-20 11:20:11.735 D/SyncManager( 807): failed sync operation XXXX@XXXX.com u0 (com.google.android.exchange), com.google.android.email.provider, SERVER, latestRunTime 47465030, reason: AutoSync, SyncResult: syncAlreadyInProgress: true stats []

Let me know if you need more info.

shantzg001 · Dec 21, 2013

veabers said:
This looks to be the relevant section. I sanitized my email.

12-20 11:19:59.875 D/GoogleServicesManager(31716): setState: sync = true, wantedSyncState = true
12-20 11:19:59.875 D/GoogleServicesManager(31716): Enabling sync
12-20 11:19:59.905 D/SyncManager( 807): failed sync operation XXXX@XXXX.com u0 (com.google.android.exchange), com.google.android.email.provider, SERVER, latestRunTime 47454987, reason: AutoSync, SyncResult: syncAlreadyInProgress: true stats []
12-20 11:19:59.985 E/qcom_sensors_hal( 807): hal_process_report_ind: Bad item quality: 11
12-20 11:20:05.505 E/Exchange(20156): Sync: Unknown status: 144
12-20 11:20:05.505 E/Exchange(20156): CommandStatusException: 144
12-20 11:20:05.695 W/ContextImpl(20156): Implicit intents with startService are not safe: Intent { act=com.google.android.email.POLICY_INTENT } android.content.ContextWrapper.bindService:517 com.android.emailcommon.service.ServiceProxy.setTask:170 com.android.emailcommon.service.PolicyServiceProxy.setAccountPolicy:73
12-20 11:20:05.725 D/dalvikvm(20156): GC_CONCURRENT freed 383K, 3% free 18181K/18660K, paused 16ms+1ms, total 58ms
12-20 11:20:11.735 D/SyncManager( 807): failed sync operation XXXX@XXXX.com u0 (com.google.android.exchange), com.google.android.email.provider, SERVER, latestRunTime 47465030, reason: AutoSync, SyncResult: syncAlreadyInProgress: true stats []

Let me know if you need more info.

This looks to be an inherent issue in the exchange app or server, not caused due to the mod..
But I'll check it out later again tonight if something can go wrong in this path due to the mod

veabers · Dec 21, 2013

shantzg001 said:
This looks to be an inherent issue in the exchange app or server, not caused due to the mod..
But I'll check it out later again tonight if something can go wrong in this path due to the mod

Thanks for taking a look. If I remove the mod the syncing works correctly. If I revert to the previous version it will sync in between the crashes.

shantzg001 · Dec 21, 2013

veabers said:
Thanks for taking a look. If I remove the mod the syncing works correctly. If I revert to the previous version it will sync in between the crashes.

Ah, thanks for the additional info. Let me check it out.

shantzg001 · Dec 21, 2013

An update. I've got some clue on the issue why it's happening and I'm trying to debug it. It's slightly harder as the issue happens only due to some actions done on server side. Will update when I have a solution or a potential fix that needs to be tested (as I can't reproduce this locally)

shantzg001 · Dec 21, 2013

@veabers @Dolfan058 (and any others facing crash/hang problems), please try the latest version 1.5 (uploading now as I type this) from github or xposed repo and let me know if it fixes your problems? I got reports from some other users that it works for them fine now.

Shamus69 · Dec 22, 2013

1.5 appears to be working!

v1.5 is the first version which has worked for me with no crashes/hanging. Occasionally when doing a manual refresh I get the message "Security policies have changed". Other than that it appears to be working just fine on my Nexus 5 (4.4.2)

Many thanks for this mod

GuestK00208 · Dec 22, 2013

Shamus69 said:
v1.5 is the first version which has worked for me with no crashes/hanging. Occasionally when doing a manual refresh I get the message "Security policies have changed". Other than that it appears to be working just fine on my Nexus 5 (4.4.2)

Many thanks for this mod

Same here, I also get that "security policies have changed" notification (which I'd never seen until I ran the module). But that's a non-issue compared to the fact that this now works and I can use Tasker to control when the keyguard goes on. Many thanks for a great module!

Sent from my Nexus 5 using Tapatalk

[Xposed Mod] Bypass Exchange Security Policy for Nexus devices and other AOSP ROMs

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