| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.tools.metalava.model |
| |
| import com.android.SdkConstants.ANDROID_URI |
| import com.android.SdkConstants.ATTR_MIN_SDK_VERSION |
| import com.android.SdkConstants.ATTR_NAME |
| import com.android.SdkConstants.TAG_PERMISSION |
| import com.android.SdkConstants.TAG_USES_SDK |
| import com.android.tools.metalava.CodebaseComparator |
| import com.android.tools.metalava.ComparisonVisitor |
| import com.android.tools.metalava.Issues |
| import com.android.tools.metalava.model.psi.CodePrinter |
| import com.android.tools.metalava.model.text.TextBackedAnnotationItem |
| import com.android.tools.metalava.model.visitors.ItemVisitor |
| import com.android.tools.metalava.model.visitors.TypeVisitor |
| import com.android.tools.metalava.reporter |
| import com.android.utils.XmlUtils.getFirstSubTagByName |
| import com.android.utils.XmlUtils.getNextTagByName |
| import com.intellij.psi.PsiFile |
| import org.objectweb.asm.Type |
| import org.objectweb.asm.tree.ClassNode |
| import org.objectweb.asm.tree.FieldInsnNode |
| import org.objectweb.asm.tree.FieldNode |
| import org.objectweb.asm.tree.MethodInsnNode |
| import org.objectweb.asm.tree.MethodNode |
| import java.io.File |
| import java.util.function.Predicate |
| import kotlin.text.Charsets.UTF_8 |
| |
| /** |
| * Represents a complete unit of code -- typically in the form of a set |
| * of source trees, but also potentially backed by .jar files or even |
| * signature files |
| */ |
| interface Codebase { |
| /** Description of what this codebase is (useful during debugging) */ |
| var description: String |
| |
| /** |
| * The location of the API. Could point to a signature file, or a directory |
| * root for source files, or a jar file, etc. |
| */ |
| var location: File |
| |
| /** The packages in the codebase (may include packages that are not included in the API) */ |
| fun getPackages(): PackageList |
| |
| /** |
| * The package documentation, if any - this returns overview.html files for each package |
| * that provided one. Not all codebases provide this. |
| */ |
| fun getPackageDocs(): PackageDocs? |
| |
| /** The rough size of the codebase (package count) */ |
| fun size(): Int |
| |
| /** Returns a class identified by fully qualified name, if in the codebase */ |
| fun findClass(className: String): ClassItem? |
| |
| /** Returns a package identified by fully qualified name, if in the codebase */ |
| fun findPackage(pkgName: String): PackageItem? |
| |
| /** Returns true if this codebase supports documentation. */ |
| fun supportsDocumentation(): Boolean |
| |
| /** |
| * Returns true if this codebase corresponds to an already trusted API (e.g. |
| * is read in from something like an existing signature file); in that case, |
| * signature checks etc will not be performed. |
| */ |
| fun trustedApi(): Boolean |
| |
| fun accept(visitor: ItemVisitor) { |
| getPackages().accept(visitor) |
| } |
| |
| fun acceptTypes(visitor: TypeVisitor) { |
| getPackages().acceptTypes(visitor) |
| } |
| |
| /** |
| * Visits this codebase and compares it with another codebase, informing the visitors about |
| * the correlations and differences that it finds |
| */ |
| fun compareWith(visitor: ComparisonVisitor, other: Codebase, filter: Predicate<Item>? = null) { |
| CodebaseComparator().compare(visitor, other, this, filter) |
| } |
| |
| /** |
| * Creates an annotation item for the given (fully qualified) Java source |
| */ |
| fun createAnnotation( |
| source: String, |
| context: Item? = null, |
| mapName: Boolean = true |
| ): AnnotationItem = TextBackedAnnotationItem( |
| this, source, mapName |
| ) |
| |
| /** |
| * Returns true if the codebase contains one or more Kotlin files |
| */ |
| fun hasKotlin(): Boolean { |
| return units.any { it.fileType.name == "Kotlin" } |
| } |
| |
| /** |
| * Returns true if the codebase contains one or more Java files |
| */ |
| fun hasJava(): Boolean { |
| return units.any { it.fileType.name == "JAVA" } |
| } |
| |
| /** The manifest to associate with this codebase, if any */ |
| var manifest: File? |
| |
| /** |
| * Returns the permission level of the named permission, if specified |
| * in the manifest. This method should only be called if the codebase has |
| * been configured with a manifest |
| */ |
| fun getPermissionLevel(name: String): String? |
| |
| fun getMinSdkVersion(): MinSdkVersion |
| |
| /** Clear the [Item.tag] fields (prior to iteration like DFS) */ |
| fun clearTags() { |
| getPackages().packages.forEach { pkg -> pkg.allClasses().forEach { cls -> cls.tag = false } } |
| } |
| |
| /** Reports that the given operation is unsupported for this codebase type */ |
| fun unsupported(desc: String? = null): Nothing |
| |
| /** Discards this model */ |
| fun dispose() { |
| description += " [disposed]" |
| } |
| |
| /** If this codebase was filtered from another codebase, this points to the original */ |
| var original: Codebase? |
| |
| /** Returns the compilation units used in this codebase (may be empty |
| * when the codebase is not loaded from source, such as from .jar files or |
| * from signature files) */ |
| var units: List<PsiFile> |
| |
| /** |
| * Printer which can convert PSI, UAST and constants into source code, |
| * with ability to filter out elements that are not part of a codebase etc |
| */ |
| val printer: CodePrinter |
| |
| /** If true, this codebase has already been filtered */ |
| val preFiltered: Boolean |
| |
| /** Finds the given class by JVM owner */ |
| fun findClassByOwner(owner: String, apiFilter: Predicate<Item>): ClassItem? { |
| val className = owner.replace('/', '.').replace('$', '.') |
| val cls = findClass(className) |
| return if (cls != null && apiFilter.test(cls)) { |
| cls |
| } else { |
| null |
| } |
| } |
| |
| fun findClass(node: ClassNode, apiFilter: Predicate<Item>): ClassItem? { |
| return findClassByOwner(node.name, apiFilter) |
| } |
| |
| fun findMethod(node: MethodInsnNode, apiFilter: Predicate<Item>): MethodItem? { |
| val cls = findClassByOwner(node.owner, apiFilter) ?: return null |
| val types = Type.getArgumentTypes(node.desc) |
| val parameters = if (types.isNotEmpty()) { |
| val sb = StringBuilder() |
| for (type in types) { |
| if (sb.isNotEmpty()) { |
| sb.append(", ") |
| } |
| sb.append(type.className.replace('/', '.').replace('$', '.')) |
| } |
| sb.toString() |
| } else { |
| "" |
| } |
| val methodName = if (node.name == "<init>") cls.simpleName() else node.name |
| val method = cls.findMethod(methodName, parameters) |
| return if (method != null && apiFilter.test(method)) { |
| method |
| } else { |
| null |
| } |
| } |
| |
| fun findMethod(classNode: ClassNode, node: MethodNode, apiFilter: Predicate<Item>): MethodItem? { |
| val cls = findClass(classNode, apiFilter) ?: return null |
| val types = Type.getArgumentTypes(node.desc) |
| val parameters = if (types.isNotEmpty()) { |
| val sb = StringBuilder() |
| for (type in types) { |
| if (sb.isNotEmpty()) { |
| sb.append(", ") |
| } |
| sb.append(type.className.replace('/', '.').replace('$', '.')) |
| } |
| sb.toString() |
| } else { |
| "" |
| } |
| val methodName = if (node.name == "<init>") cls.simpleName() else node.name |
| val method = cls.findMethod(methodName, parameters) |
| return if (method != null && apiFilter.test(method)) { |
| method |
| } else { |
| null |
| } |
| } |
| |
| fun findField(classNode: ClassNode, node: FieldNode, apiFilter: Predicate<Item>): FieldItem? { |
| val cls = findClass(classNode, apiFilter) ?: return null |
| val field = cls.findField(node.name) |
| return if (field != null && apiFilter.test(field)) { |
| field |
| } else { |
| null |
| } |
| } |
| |
| fun findField(node: FieldInsnNode, apiFilter: Predicate<Item>): FieldItem? { |
| val cls = findClassByOwner(node.owner, apiFilter) ?: return null |
| val field = cls.findField(node.name) |
| return if (field != null && apiFilter.test(field)) { |
| field |
| } else { |
| null |
| } |
| } |
| |
| fun isEmpty(): Boolean { |
| return getPackages().packages.isEmpty() |
| } |
| } |
| |
| sealed class MinSdkVersion |
| data class SetMinSdkVersion(val value: Int) : MinSdkVersion() |
| object UnsetMinSdkVersion : MinSdkVersion() |
| |
| abstract class DefaultCodebase(override var location: File) : Codebase { |
| override var manifest: File? = null |
| private var permissions: Map<String, String>? = null |
| private var minSdkVersion: MinSdkVersion? = null |
| override var original: Codebase? = null |
| override var units: List<PsiFile> = emptyList() |
| @Suppress("LeakingThis") |
| override val printer = CodePrinter(this) |
| @Suppress("LeakingThis") |
| override var preFiltered: Boolean = original != null |
| |
| override fun getPermissionLevel(name: String): String? { |
| if (permissions == null) { |
| assert(manifest != null) { |
| "This method should only be called when a manifest has been configured on the codebase" |
| } |
| try { |
| val map = HashMap<String, String>(600) |
| val doc = parseDocument(manifest?.readText(UTF_8) ?: "", true) |
| var current = getFirstSubTagByName(doc.documentElement, TAG_PERMISSION) |
| while (current != null) { |
| val permissionName = current.getAttributeNS(ANDROID_URI, ATTR_NAME) |
| val protectionLevel = current.getAttributeNS(ANDROID_URI, "protectionLevel") |
| map[permissionName] = protectionLevel |
| current = getNextTagByName(current, TAG_PERMISSION) |
| } |
| permissions = map |
| } catch (error: Throwable) { |
| reporter.report(Issues.PARSE_ERROR, manifest, "Failed to parse $manifest: ${error.message}") |
| permissions = emptyMap() |
| } |
| } |
| |
| return permissions!![name] |
| } |
| |
| override fun getMinSdkVersion(): MinSdkVersion { |
| if (minSdkVersion == null) { |
| if (manifest == null) { |
| minSdkVersion = UnsetMinSdkVersion |
| return minSdkVersion!! |
| } |
| minSdkVersion = try { |
| val doc = parseDocument(manifest?.readText(UTF_8) ?: "", true) |
| val usesSdk = getFirstSubTagByName(doc.documentElement, TAG_USES_SDK) |
| if (usesSdk == null) { |
| UnsetMinSdkVersion |
| } else { |
| val value = usesSdk.getAttributeNS(ANDROID_URI, ATTR_MIN_SDK_VERSION) |
| if (value.isEmpty()) UnsetMinSdkVersion else SetMinSdkVersion(value.toInt()) |
| } |
| } catch (error: Throwable) { |
| reporter.report(Issues.PARSE_ERROR, manifest, "Failed to parse $manifest: ${error.message}") |
| UnsetMinSdkVersion |
| } |
| } |
| return minSdkVersion!! |
| } |
| |
| override fun getPackageDocs(): PackageDocs? = null |
| |
| override fun unsupported(desc: String?): Nothing { |
| error(desc ?: "This operation is not available on this type of codebase (${this.javaClass.simpleName})") |
| } |
| } |
