Add War download feature (jenkinsci#68)

* Add War download feature

* Added code suggestions

* Committed suggestions

* Fixed arguments

* Removed test and added war download funtion to frontend

* Trigger Build

frontend/src/components/PackageGeneration/Editor.js

@@ -37,8 +37,18 @@ class editor extends React.Component {
    componentDidMount() {
     this.setState({code: localStorage.getItem("packageConfigYAML")})
     this.setState({title: JSON.parse(localStorage.getItem("packageConfigJSON"))["bundle"]["title"]})
-    this.setState({description: JSON.parse(localStorage.getItem("packageConfigJSON"))["bundle"]["desc"]})
-   }
+    this.setState({description: JSON.parse(localStorage.getItem("packageConfigJSON"))["bundle"]["description"]})
+  }
+
+   downloadWarfile() {
+    var xhr = new XMLHttpRequest();
+    xhr.open("POST", 'http://localhost:8080/package/downloadWarPackage', true);
+    xhr.responseType = "blob";
+    xhr.onload = function () {
+        saveData(this.response, 'jenkins.war');
+    };
+    xhr.send(localStorage.getItem("packageConfigYAML"));
+  }
 
    downloadPackagerConfig() {
     var xhr = new XMLHttpRequest();
@@ -50,8 +60,6 @@ class editor extends React.Component {
     xhr.send(localStorage.getItem("packageConfigYAML"));
    }
 
-
-
    render()  {
     const packageJSON = JSON.parse(localStorage.getItem("packageConfigJSON"))
 
@@ -72,8 +80,8 @@ class editor extends React.Component {
         }}
       />
       <div className="column">
+      <Button onClick = {this.downloadWarfile} style = {{backgroundColor:"#185ecc", fontSize:"25px"}} >Download War File </Button>
       <Button onClick = { this.downloadPackagerConfig }style = {{backgroundColor:"#185ecc", fontSize:"25px", margin:"10px"}} >Download Packager Config </Button>
-      <Button style = {{backgroundColor:"#185ecc", fontSize:"25px"}} >Download War File </Button>
       <Card style = {{ margin:"10px"}}>
         <CardBody>
           <CardTitle>Packager Details</CardTitle>

frontend/src/components/modal.js

@@ -37,7 +37,7 @@ class ModalExample extends React.Component {
         var bundle = new Object()
         bundle["artifactId"] = this.state.artifactID
         bundle["title"] = this.state.title
-        bundle["desc"] = this.state.description
+        bundle["description"] = this.state.description
         packagerInfo["bundle"] = bundle
         // Add war object
         packagerInfo["war"] = {jenkinsVersion: this.state.warVersion}

src/main/java/com/org/jenkins/custom/jenkins/distribution/service/PackagerController.java

@@ -1,10 +1,10 @@
 package com.org.jenkins.custom.jenkins.distribution.service;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.org.jenkins.custom.jenkins.distribution.service.services.PackagerDownloadService;
 import com.org.jenkins.custom.jenkins.distribution.service.util.Util;
+import java.util.Map;
 import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileWriter;
 import java.util.logging.Logger;
 import org.json.JSONObject;
 import org.springframework.core.io.InputStreamResource;
@@ -15,16 +15,17 @@
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.yaml.snakeyaml.Yaml;
 
 import static com.org.jenkins.custom.jenkins.distribution.service.generators.PackageConfigGenerator.generatePackageConfig;
-
 @RestController
 @CrossOrigin
 @RequestMapping("/package")
 
 public class PackagerController {
 
-    private Util util = new Util();
+    private static Util util = new Util();
+
     private final static Logger LOGGER = Logger.getLogger(PackagerController.class.getName());
 
     /**
@@ -51,6 +52,24 @@ public ResponseEntity<?> getPackageConfig(@RequestBody String postPayload) {
         }
     }
 
+    /**
+     * Takes the configuration in the browsers editor and generates and returns the 
+     * war file.
+     * 
+     * @param postPayload The content of the text editor in the browser 
+     * @return a ResponseEntity instance with a body containing the generated jenkins.war package.
+     */
+    @PostMapping (path = "/downloadWarPackage")
+    public ResponseEntity<?> downloadWAR(@RequestBody String postPayload) {
+        LOGGER.info("Request Received for downloading war file with configuration" + postPayload);
+        try {
+            return new PackagerDownloadService().downloadWAR(getWarVersion(), postPayload);
+        } catch (Exception e) {
+            LOGGER.severe(e.toString());
+            return new ResponseEntity(HttpStatus.NOT_FOUND);
+        }
+    }
+
     /**
      * Send the content of the browser's text editor to the client (a download).
      *
@@ -71,4 +90,10 @@ public ResponseEntity<?> downloadPackageConfig(@RequestBody String postPayload)
         }
     }
 
+    private String getWarVersion() throws Exception {
+        Yaml yaml = new Yaml();
+        Map<String , Map<String,String>> yamlMaps = (Map<String, Map<String,String>>) yaml.load(util.readStringFromFile("packager-config.yml"));
+        JSONObject json = new JSONObject(new ObjectMapper().writeValueAsString(yamlMaps.get("war")));
+        return json.getJSONObject("source").get("version").toString();
+    }
 }

src/main/java/com/org/jenkins/custom/jenkins/distribution/service/generators/PackageConfigGenerator.java

@@ -62,7 +62,7 @@ private static JSONObject generateBundle(JSONObject bundle) {
         bundleInfo.put("artifactId", bundle.getString("artifactId"));
         bundleInfo.put("vendor", "Jenkins project");
         bundleInfo.put("title", bundle.getString("title"));
-        bundleInfo.put("description", bundle.getString("desc"));
+        bundleInfo.put("description", bundle.getString("description"));
         return bundleInfo;
     }
 

src/main/java/com/org/jenkins/custom/jenkins/distribution/service/generators/WarGenerator.java

@@ -1,35 +1,33 @@
 package com.org.jenkins.custom.jenkins.distribution.service.generators;
 
-import com.org.jenkins.custom.jenkins.distribution.service.util.Util;
 import io.jenkins.tools.warpackager.lib.config.Config;
 import io.jenkins.tools.warpackager.lib.impl.Builder;
-
 import java.io.File;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.logging.Logger;
 
 public class WarGenerator {
 
-    private static Util util = new Util();
-
-    private static final String PACKAGER_CONFIG_YAML = "packager-config.yml";
+    private final static Logger LOGGER = Logger.getLogger(WarGenerator.class.getName());
     private static final String TEMP_PREFIX = "CDS";
 
-    public static void generateWAR(String versionName) {
+
+    public static File generateWAR(String versionName, String configuration) throws Exception {
+        LOGGER.info("Generating War File");
         final Config cfg;
-        Path tempDirWithPrefix = null;
-        try {
-            tempDirWithPrefix = Files.createTempDirectory(TEMP_PREFIX);
-            final File configPath = util.getFileFromResources(PACKAGER_CONFIG_YAML);
-            cfg = Config.loadConfig(configPath);
+        Path tempDirWithPrefix = Files.createTempDirectory(TEMP_PREFIX);
+            File packagerConfigFile = File.createTempFile("packager-config", ".yml");
+            byte[] buf = configuration.getBytes();
+            Files.write(packagerConfigFile.toPath(), buf);
+            cfg = Config.loadConfig(packagerConfigFile);
             cfg.buildSettings.setTmpDir(tempDirWithPrefix.toFile());
             cfg.buildSettings.setVersion(versionName);
             cfg.buildSettings.setInstallArtifacts(true);
             new Builder(cfg).build();
-        } catch (Exception e) {
-            e.printStackTrace();
-        } finally {
-            util.cleanupTempDirectory(tempDirWithPrefix.toFile());
-        }
+            LOGGER.info("Cleaning up temporary directory");
+            packagerConfigFile.deleteOnExit();
+            return cfg.getOutputWar();
     }
+
 }

src/main/java/com/org/jenkins/custom/jenkins/distribution/service/services/PackagerDownloadService.java

@@ -1,10 +1,13 @@
 package com.org.jenkins.custom.jenkins.distribution.service.services;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.org.jenkins.custom.jenkins.distribution.service.generators.WarGenerator;
 import com.org.jenkins.custom.jenkins.distribution.service.util.Util;
 import java.io.File;
 import java.io.FileInputStream;
 import java.util.Map;
 import java.util.logging.Logger;
+import org.json.JSONObject;
 import org.springframework.core.io.InputStreamResource;
 import org.springframework.core.io.Resource;
 import org.springframework.http.HttpHeaders;
@@ -19,11 +22,11 @@ public class PackagerDownloadService {
     private final static Logger LOGGER = Logger.getLogger(PackagerDownloadService.class.getName());
     private static Util util = new Util();
 
-    public ResponseEntity<Resource> downloadWAR(String versionName) throws Exception {
+    public ResponseEntity<Resource> downloadWAR(String versionName, String configuration) throws Exception {
         File warFile = null;
         String artifactId = getArtifactId();
         try {
-            warFile = new File("/tmp/output/target/" + artifactId + "-" + versionName + ".war");
+            warFile = WarGenerator.generateWAR(versionName, configuration);
             InputStreamResource resource = new InputStreamResource(new FileInputStream(warFile));
             String headerValue = "attachment; filename=jenkins.war";
             LOGGER.info("Returning War file");
@@ -56,8 +59,9 @@ private HttpHeaders returnHeaders(String headerValue) {
     private String getArtifactId() throws Exception {
         Yaml yaml = new Yaml();
         Map<String , Map<String,String>> yamlMaps = (Map<String, Map<String,String>>) yaml.load(util.readStringFromFile("packager-config.yml"));
-        String artifactId = yamlMaps.get("bundle").get("artifactId");
-        return artifactId;
+        return yamlMaps.get("bundle").get("artifactId");
     }
+
+
 }
 

src/test/resources/packagerConfig/simpleConfig.json

@@ -2,7 +2,7 @@
   "bundle": {
     "artifactId" : "jenkins-all-latest",
     "title" : "Jenkins WAR - all latest",
-    "desc" : "New Jenkins Version"
+    "description" : "New Jenkins Version"
   },
   "war" : {
     "jenkinsVersion": "2.107.3"