mirror of
https://github.com/NationalSecurityAgency/ghidra.git
synced 2024-11-22 12:11:55 +00:00
318 lines
12 KiB
Groovy
318 lines
12 KiB
Groovy
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/*********************************************************************************
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* ip.gradle
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*
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* This file defines the gradle tasks for generating the LICENSE.txt in each module
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* which lists all the 3rd party files in this module and their licenses.
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*
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* The task also verifies that the license for each of the 3rd party files is allowed
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* based on what license files exist in the root/licenses directory.
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*
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* It also reads the Module.manifest file where license information is recorded for
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* jar dependencies and build artifacts. These are added to the LICENSE.txt file. Also,
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* the jar dependencies (as defined in the build.gradle file) are examined to make
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* sure they are defined in the Module.manifest file.
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*********************************************************************************/
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/*********************************************************************************
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* Defines the main ip task for each subproject
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*********************************************************************************/
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task ip {
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doLast {
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// scans all the files in the module, reads ip from header, verifies ip, and creates mapping
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def ipToFileMap = getIpForModule(project)
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// reads the ip info from the Module.manifest file and verifies each ip
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def moduleManifestIpMap = getModuleManifestIp(project)
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// gets the external libs from gradle and verifies they are accounted for in the Module.manifest file
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checkExternalLibsInMap(moduleManifestIpMap, project)
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// adds the ip info from the Module.manifest file to the map generated from scanning the module files.
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addModuleManifestIp(ipToFileMap, moduleManifestIpMap)
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// writes the LICENSE.txt file for the module
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writeLicenseInfo(project, ipToFileMap)
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}
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}
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rootProject.assembleDistribution.dependsOn ip
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/*********************************************************************************
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* Addes the ip information from the Module.manifest file into the ipToFileMap
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*********************************************************************************/
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def addModuleManifestIp(Map<String, List<String>> ipToFileMap, Map<String, String> moduleManifestIpMap) {
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for (path in moduleManifestIpMap.keySet()) {
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String ip = moduleManifestIpMap.get(path)
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addToMap(ipToFileMap, ip, path)
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}
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}
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/*********************************************************************************
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* Reads the ip info in the Module.manifest file and creates a mapping of path to ip
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*********************************************************************************/
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def Map<String, String> getModuleManifestIp(Project project) {
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Map<String, String> map = new HashMap<String, String>();
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File moduleManifest = new File(project.projectDir, "Module.manifest")
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if (!moduleManifest.exists()) {
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return map
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}
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def allowedIP = getAllowedIP(project)
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def lines = moduleManifest.readLines();
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String key = "MODULE FILE LICENSE:"
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for(line in lines) {
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if (line.startsWith(key)) {
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String s = line.substring(key.length()).trim()
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int index = s.indexOf(' ')
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String path = s.substring(0, index).trim()
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String ip = s.substring(index+1).trim()
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def ipString = ip.replace(' ','_')
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assert allowedIP.contains(ipString) : "Encountered Non-allowed IP: "+ip+ " for Module.manifest entry: "+path
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map.put(path, ip)
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}
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}
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return map
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}
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/**********************************************************************************
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* Gets the gradle dependences and makes sure each external lib is accounted for in
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* the map from the Module.manifest file
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*********************************************************************************/
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def checkExternalLibsInMap(Map<String, String> map, Project project) {
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if (project.plugins.withType(JavaPlugin)) {
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List<String> libs = getExternalDependencies(project)
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libs.each { lib ->
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String libName = new File(lib).getName() // get just the filename without the path
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String relativePath = "lib/"+libName;
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assert map.containsKey(relativePath) : "No License specified for external library: "+relativePath+ " in module "+project.projectDir
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}
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}
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}
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/*********************************************************************************
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* Examines all the files in the module, reads their ip from the header, verifies
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* that the ip is allowed, and adds an entry to a mapping of the ip to a list of
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* files with that ip
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*********************************************************************************/
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def Map<String, List<String>> getIpForModule(Project p) {
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Map<String, List<String>> map = new HashMap<String, List<String>>()
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File certificationFile = new File(p.projectDir, "certification.manifest")
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if (!certificationFile.exists()) {
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return map;
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}
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def allowedIP = getAllowedIP(p)
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FileTree tree = p.fileTree(".") {
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exclude "bin/**";
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exclude "**/build/**";
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exclude "certification.manifest"
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exclude "certification.local.manifest"
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exclude ".project"
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exclude ".classpath"
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exclude "Module.manifest"
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exclude "build.gradle"
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exclude "**/Misc/Tips.htm"
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exclude "**/*.sla"
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exclude "**/.gradle/**"
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exclude "**/.settings/**"
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exclude "**/data/build.xml" // language build file (generated for dev only)
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exclude "**/.vs/**"
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exclude "**/*.vcxproj.user"
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}
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tree.each { file ->
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String ip = getIp(p.projectDir, file)
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assert ip != null : "No IP found for "+file.path+ " in module: "+p.projectDir
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String ipString = ip.replace(' ','_')
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assert allowedIP.contains(ipString) : "Found non-allowed IP: "+ip+" for file "+file.path+" in module: "+p.projectDir
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addToMap(map, ip, getRelativePath(p.projectDir, file))
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}
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return map;
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}
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/*********************************************************************************
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* Returns the relative path of a file in the module
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*********************************************************************************/
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def String getRelativePath(File projectDir, File file) {
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return file.getPath().substring(projectDir.getPath().length()+1)
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}
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/*********************************************************************************
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* adds a path and its ip to the mapping of ip to list of files
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*********************************************************************************/
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def addToMap(Map<String, List<String>> map, String ip, String path) {
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List<String> list = map.get(ip);
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if (list == null) {
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list = new ArrayList<String>();
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map.put(ip, list);
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}
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list.add(path)
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}
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/*********************************************************************************
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* checks if a file supports a C style header based on its extension.
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*********************************************************************************/
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def isSourceFile(File file) {
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String filename = file.getName().toLowerCase();
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return filename.endsWith(".java") ||
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filename.endsWith(".c") ||
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filename.endsWith(".groovy") ||
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filename.endsWith(".cpp") ||
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filename.endsWith(".cc") ||
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filename.endsWith(".h") ||
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filename.endsWith(".y") ||
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filename.endsWith(".l") ||
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filename.endsWith(".hh") ||
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filename.endsWith(".css") ||
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filename.endsWith(".jj");
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}
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/*********************************************************************************
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* Gets the ip for a file in the module from its header (or certification.manifest
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*********************************************************************************/
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def getIp(File projectDir, File file) {
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if (isSourceFile(file)) {
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return getIpForSourceFile(file);
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}
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return getIpForNonSourceFile(projectDir, file);
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}
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/*********************************************************************************
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* Gets the ip from a file that has a certification header
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*********************************************************************************/
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def getIpForSourceFile(File file) {
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String ip =null
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String line;
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file.withReader { reader ->
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while((line = reader.readLine()) != null) {
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if (line.startsWith(" * IP:")) {
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ip = line.substring(7).trim();
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break;
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}
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}
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}
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return ip;
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}
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/*********************************************************************************
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* Gets the ip for a file that does not have a header, but has an entry in the
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* certication.manifest
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*********************************************************************************/
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def getIpForNonSourceFile(File projectDir, File file) {
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String ip = null
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File manifest = new File(projectDir, "certification.manifest");
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def lines = manifest.readLines()
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lines.each {line ->
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line = line.trim();
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def parts = line.split("\\|");
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if (parts.length > 2 && file.toString().replace(File.separator, "/").endsWith(parts[0])) {
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ip = parts[2];
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}
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}
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return ip;
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}
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/*********************************************************************************
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* Writes the license information to the LICENSE.txt file for the module
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*********************************************************************************/
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def writeLicenseInfo(Project project, Map<String, List<String>> map) {
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if (map.isEmpty()) {
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return;
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}
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File buildDir = new File(project.projectDir, "build")
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buildDir.mkdir();
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File licenseFile = new File(buildDir,"LICENSE.txt");
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def buf = new StringBuffer();
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addLicenseProlog(project, buf)
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map.keySet().each { ip ->
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reportLicenseFiles(buf, ip, map.get(ip))
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}
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licenseFile.text = buf.toString()
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}
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/*********************************************************************************
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* Writes the files for a single ip
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*********************************************************************************/
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def reportLicenseFiles(StringBuffer buf, String ip, List<String> filepaths) {
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if (ip.equals("GHIDRA") || ip.equals("LICENSE")) {
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return;
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}
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buf.append(ip+":\n\n")
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filepaths.each { path ->
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buf.append("\t")
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buf.append(path)
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buf.append("\n")
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}
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buf.append("\n")
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}
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/*********************************************************************************
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* Generates the text for the prolog (non-changing) part of the LICENSE.txt file
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*********************************************************************************/
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def addLicenseProlog(Project project, StringBuffer buf) {
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if (project.projectDir.toString().contains(File.separator + "GPL" + File.separator)) {
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buf.append("The program in this module is released under the GPL 3 license. \n")
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buf.append("The files used to create this program include both public domain\n")
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buf.append("files created by the Ghidra team and 3rd party files with \n")
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buf.append("the GPL 3 or GPL 3 compatible license. ")
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buf.append("The license files for each of license used can be found in the\n")
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buf.append("<installation root>/GPL/licenses.\n\n")
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buf.append("\nThe 3rd party files in this module are as follows:\n\n\n")
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}
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else {
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buf.append("Ghidra software is released under the Apache 2.0 license. In addition, \n")
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buf.append("there are numerous 3rd party components that each have their \n")
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buf.append("own license. The license file for each of these licenses can be found\n")
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buf.append("in the licenses directory in the installation root directory.\n")
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buf.append("\nThe 3rd party files in this module are as follows:\n\n\n")
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}
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}
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/*********************************************************************************
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* Examines the <root>/licenses directory to discover what licenses are allowed
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*********************************************************************************/
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def Set<String> getAllowedIP(Project p) {
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Set<String> set = new HashSet<String>()
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def projectPath = p.projectDir.path.replace(File.separator, "/");
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if (projectPath.contains("/GPL/")) {
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set.add("GPL_3")
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set.add("GPL_3_Linking_Permitted")
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set.add("GPL_2_With_Classpath_Exception")
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set.add("Public_Domain")
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set.add("LGPL_3.0")
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set.add("LGPL_2.1")
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}
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else {
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File root = p.rootProject.file("..")
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root.listFiles().each { f ->
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File licenseDir = new File(f, "licenses")
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File[] files = licenseDir.listFiles()
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files.each { file ->
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set.add(getIpName(file.getName()))
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}
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}
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}
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set.add("GHIDRA")
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set.add("LICENSE")
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set.add("Copyright_Distribution_Permitted")
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return set;
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}
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/*********************************************************************************
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* converts a file name to an ip name that can be compared to info from headers.
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*********************************************************************************/
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def String getIpName(String filename) {
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if (filename.endsWith(".txt")) filename = filename.substring(0, filename.length()-4)
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if (filename.endsWith(".htm")) filename = filename.substring(0, filename.length()-4)
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if (filename.endsWith(".html")) filename = filename.substring(0, filename.length()-5)
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return filename
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}
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