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update Intent file
This commit is contained in:
committed by
Tony Torralba
parent
960e9db2fb
commit
91db1be399
@@ -3,9 +3,7 @@ private import semmle.code.java.dataflow.DataFlow
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private import semmle.code.java.dataflow.ExternalFlow
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private import semmle.code.java.dataflow.FlowSteps
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/**
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* The class `android.content.Intent`.
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*/
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/** The class `android.content.Intent`. */
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class TypeIntent extends Class {
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TypeIntent() { this.hasQualifiedName("android.content", "Intent") }
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}
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@@ -15,23 +13,17 @@ class TypeComponentName extends Class {
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TypeComponentName() { this.hasQualifiedName("android.content", "ComponentName") }
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}
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/**
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* The class `android.app.Activity`.
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*/
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/** The class `android.app.Activity`. */
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class TypeActivity extends Class {
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TypeActivity() { this.hasQualifiedName("android.app", "Activity") }
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}
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/**
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* The class `android.app.Service`.
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*/
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/** The class `android.app.Service`. */
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class TypeService extends Class {
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TypeService() { this.hasQualifiedName("android.app", "Service") }
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}
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/**
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* The class `android.content.Context`.
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*/
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/** The class `android.content.Context`. */
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class TypeContext extends RefType {
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// Not inlining this makes it more likely to be used as a sentinel,
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// which is useful when running Android queries on non-Android projects.
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@@ -39,42 +31,25 @@ class TypeContext extends RefType {
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TypeContext() { this.hasQualifiedName("android.content", "Context") }
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}
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/**
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* The class `android.content.BroadcastReceiver`.
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*/
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/** The class `android.content.BroadcastReceiver`. */
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class TypeBroadcastReceiver extends Class {
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TypeBroadcastReceiver() { this.hasQualifiedName("android.content", "BroadcastReceiver") }
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}
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/**
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* The method `Activity.getIntent`
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*/
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/** The method `Activity.getIntent` */
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class AndroidGetIntentMethod extends Method {
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AndroidGetIntentMethod() {
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this.hasName("getIntent") and this.getDeclaringType() instanceof TypeActivity
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}
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}
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/**
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* The method `BroadcastReceiver.onReceive`.
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*/
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/** The method `BroadcastReceiver.onReceive`. */
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class AndroidReceiveIntentMethod extends Method {
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AndroidReceiveIntentMethod() {
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this.hasName("onReceive") and this.getDeclaringType() instanceof TypeBroadcastReceiver
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}
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}
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/**
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* The method `Service.onStart`, `onStartCommand`,
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* `onBind`, `onRebind`, `onUnbind`, or `onTaskRemoved`.
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*/
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class AndroidServiceIntentMethod extends Method {
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AndroidServiceIntentMethod() {
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this.getName().matches(["onStart%", "on%ind", "onTaskRemoved"]) and
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this.getDeclaringType() instanceof TypeService
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}
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}
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/**
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* The method `Service.onStart`, `onStartCommand`,
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* `onBind`, `onRebind`, `onUnbind`, or `onTaskRemoved`.
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@@ -135,22 +110,21 @@ class SendBroadcastMethod extends Method {
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*/
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class StartServiceMethod extends Method {
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StartServiceMethod() {
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this.getName().matches(["start%Service", "bind%Service%"]) and
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this.hasName([
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"startService", "startForegroundService", "bindIsolatedService", "bindService",
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"bindServiceAsUser"
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]) and
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this.getDeclaringType() instanceof TypeContext
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}
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}
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/**
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* Specifies that if an `Intent` is tainted, then so are its synthetic fields.
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*/
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/** Specifies that if an `Intent` is tainted, then so are its synthetic fields. */
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private class IntentFieldsInheritTaint extends DataFlow::SyntheticFieldContent,
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TaintInheritingContent {
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IntentFieldsInheritTaint() { this.getField().matches("android.content.Intent.%") }
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}
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/**
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* The method `Intent.getParcelableExtra`.
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*/
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/** The method `Intent.getParcelableExtra`. */
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class IntentGetParcelableExtraMethod extends Method {
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IntentGetParcelableExtraMethod() {
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this.hasName("getParcelableExtra") and
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@@ -212,9 +186,7 @@ private class BundleExtrasSyntheticField extends SyntheticField {
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override RefType getType() { result instanceof AndroidBundle }
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}
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/**
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* Holds if extras may be implicitly read from the Intent `node`.
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*/
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/** Holds if extras may be implicitly read from the Intent `node`. */
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predicate allowIntentExtrasImplicitRead(DataFlow::Node node, DataFlow::Content c) {
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node.getType() instanceof TypeIntent and
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(
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@@ -283,26 +255,20 @@ private class StartComponentMethodAccess extends MethodAccess {
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}
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}
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/**
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* Holds if there is a step from the intent argument `n1` of a `startActivity` call
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* to a `getIntent` call `n2` in the activity `n1` targets.
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*/
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private predicate startActivityIntentStep(DataFlow::Node n1, DataFlow::Node n2) {
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exists(StartComponentMethodAccess startActivity, MethodAccess getIntent |
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startActivity.getMethod().overrides*(any(StartActivityMethod m)) and
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getIntent.getMethod().overrides*(any(AndroidGetIntentMethod m)) and
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startActivity.targetsComponentType(getIntent.getReceiverType()) and
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n1.asExpr() = startActivity.getIntentArg() and
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n2.asExpr() = getIntent
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)
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}
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/**
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* A value-preserving step from the intent argument of a `startActivity` call to
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* a `getIntent` call in the activity the intent targeted in its constructor.
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*/
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private class StartActivityIntentStep extends AdditionalValueStep {
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override predicate step(DataFlow::Node n1, DataFlow::Node n2) { startActivityIntentStep(n1, n2) }
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override predicate step(DataFlow::Node n1, DataFlow::Node n2) {
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exists(StartComponentMethodAccess startActivity, MethodAccess getIntent |
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startActivity.getMethod().overrides*(any(StartActivityMethod m)) and
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getIntent.getMethod().overrides*(any(AndroidGetIntentMethod m)) and
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startActivity.targetsComponentType(getIntent.getReceiverType()) and
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n1.asExpr() = startActivity.getIntentArg() and
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n2.asExpr() = getIntent
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)
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}
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}
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/**
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