What is it?

ExchangePolicyCleaner is an iOS tweak that ignores Microsoft Exchange ActiveSync policies.

http://moreinfo.thebigboss.org/moreinfo/depiction.php?file=exchangepolicycleanerDp

How do I build it?

ExchangePolicyCleaner uses the Theos Makefile system:

git clone git://github.com/joedj/ExchangePolicyCleaner.git
cd ExchangePolicyCleaner
ln -s $THEOS theos
THEOS_DEVICE_IP=1.2.3.4 make package install

Gotchas

• Changes will not take effect until you refresh your EAS policy, e.g. by disabling then re-enabling your Exchange account. You can also do this using cycript:

#!/usr/bin/env cycript -p dataaccessd

(function() {
    for each (var a in DAAccountManager.sharedInstance.accounts) {
        if ([a.policyManager respondsToSelector:@selector(requestPolicyUpdate)]) {
            [a.policyManager requestPolicyUpdate];
        }
    }
})()

But I'd rather use cycript

Instead of using this MobileSubstrate tweak, you can apply an ephemeral hook to -[ASWBXMLPolicy _cleanUpPolicyData:] using cycript:

#!/usr/bin/env cycript -p dataaccessd

if (typeof(original_ASWBXMLPolicy_cleanUpPolicyData) == 'undefined') {
    original_ASWBXMLPolicy_cleanUpPolicyData = ASWBXMLPolicy.messages['_cleanUpPolicyData:'];
}

ASWBXMLPolicy.messages['_cleanUpPolicyData:'] = function(policy) {
    [policy removeAllObjects];
    original_ASWBXMLPolicy_cleanUpPolicyData.call(this, policy);
}

What does an Exchange ActiveSync policy look like?

Here is an example policy as passed to the -[ASWBXMLPolicy _cleanUpPolicyData:] method:

{
    ASPolicyType = ASWBXMLPolicyType;
    AllowBluetooth = 2;
    AllowBrowser = 1;
    AllowCamera = 1;
    AllowConsumerEmail = 1;
    AllowDesktopSync = 1;
    AllowHTMLEmail = 1;
    AllowInternetSharing = 1;
    AllowIrDA = 1;
    AllowPOPIMAPEmail = 1;
    AllowRemoteDesktop = 1;
    AllowSMIMEEncryptionAlgorithmNegotiation = 2;
    AllowSMIMESoftCerts = 1;
    AllowSimpleDevicePassword = 1;
    AllowStorageCard = 1;
    AllowTextMessaging = 1;
    AllowUnsignedApplications = 1;
    AllowUnsignedInstallationPackages = 1;
    AllowWiFi = 1;
    AlphanumericPasswordEnabled = 0;
    ApprovedApplicationList = ();
    AttachmentsEnabled = 1;
    DeviceEncryptionEnabled = 1;
    DevicePasswordEnabled = 1;
    DevicePasswordExpiration = "";
    DevicePasswordHistory = 0;
    MaxAttachmentSize = "";
    MaxCalendarAgeFilter = 0;
    MaxDevicePasswordFailedAttempts = 16;
    MaxEmailAgeFilter = 0;
    MaxEmailBodyTruncationSize = "-1";
    MaxInactivityTimeDeviceLock = 900;
    MinDevicePasswordComplexCharacters = 3;
    MinDevicePasswordLength = 4;
    PasswordRecoveryEnabled = 0;
    RequireDeviceEncryption = 1;
    RequireEncryptedSMIMEMessages = 0;
    RequireEncryptionSMIMEAlgorithm = 0;
    RequireManualSyncWhenRoaming = 0;
    RequireSignedSMIMEAlgorithm = 0;
    RequireSingedSMIMEMessages = 0;
    UnapprovedInROMAppliationList = ();
}