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/*
* SonarQube Runner - Implementation
* Copyright (C) 2011 SonarSource
* dev@sonar.codehaus.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.runner.impl;
import org.sonar.home.cache.PersistentCache;
import com.github.kevinsawicki.http.HttpRequest;
import org.apache.commons.io.FileUtils;
import java.io.File;
import java.io.IOException;
import java.net.ConnectException;
import java.net.URL;
import java.net.UnknownHostException;
import java.text.MessageFormat;
import java.util.Properties;
import java.util.concurrent.Callable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
class ServerConnection {
private static final String SONAR_SERVER_CAN_NOT_BE_REACHED = "Sonar server ''{0}'' can not be reached";
private static final String STATUS_RETURNED_BY_URL_IS_INVALID = "Status returned by url : ''{0}'' is invalid : {1}";
static final int CONNECT_TIMEOUT_MILLISECONDS = 30000;
static final int READ_TIMEOUT_MILLISECONDS = 60000;
private static final Pattern CHARSET_PATTERN = Pattern.compile("(?i)\\bcharset=\\s*\"?([^\\s;\"]*)");
private final String serverUrl;
private final String userAgent;
private final PersistentCache wsCache;
private final boolean isModePreview;
private ServerConnection(String serverUrl, String app, String appVersion, boolean preview, PersistentCache cache) {
this.serverUrl = removeEndSlash(serverUrl);
this.userAgent = app + "/" + appVersion;
this.wsCache = cache;
this.isModePreview = preview;
}
private static String removeEndSlash(String url) {
if (url == null) {
return null;
}
return url.endsWith("/") ? url.substring(0, url.length() - 1) : url;
}
static ServerConnection create(Properties properties, PersistentCache cache) {
String serverUrl = properties.getProperty("sonar.host.url");
String app = properties.getProperty(InternalProperties.RUNNER_APP);
String appVersion = properties.getProperty(InternalProperties.RUNNER_APP_VERSION);
String analysisMode = properties.getProperty("sonar.analysis.mode");
boolean preview = "preview".equalsIgnoreCase(analysisMode);
return new ServerConnection(serverUrl, app, appVersion, preview, cache);
}
private class StringDownloader implements Callable<String> {
private String url;
StringDownloader(String url) {
this.url = url;
}
@Override
public String call() throws Exception {
HttpRequest httpRequest = null;
try {
httpRequest = newHttpRequest(new URL(url));
String charset = getCharsetFromContentType(httpRequest.contentType());
if (charset == null || "".equals(charset)) {
charset = "UTF-8";
}
if (!httpRequest.ok()) {
throw new IOException(MessageFormat.format(STATUS_RETURNED_BY_URL_IS_INVALID, url, httpRequest.code()));
}
return httpRequest.body(charset);
} finally {
if (httpRequest != null) {
httpRequest.disconnect();
}
}
}
}
void download(String path, File toFile) {
String fullUrl = serverUrl + path;
try {
Logs.debug("Download " + fullUrl + " to " + toFile.getAbsolutePath());
HttpRequest httpRequest = newHttpRequest(new URL(fullUrl));
if (!httpRequest.ok()) {
throw new IOException(MessageFormat.format(STATUS_RETURNED_BY_URL_IS_INVALID, fullUrl, httpRequest.code()));
}
httpRequest.receive(toFile);
} catch (Exception e) {
if (e.getCause() instanceof ConnectException || e.getCause() instanceof UnknownHostException) {
Logs.error(MessageFormat.format(SONAR_SERVER_CAN_NOT_BE_REACHED, serverUrl));
}
FileUtils.deleteQuietly(toFile);
throw new IllegalStateException("Fail to download: " + fullUrl, e);
}
}
String downloadStringCache(String path) throws Exception {
String fullUrl = serverUrl + path;
try {
if (isModePreview) {
return wsCache.getString(serverUrl, new StringDownloader(fullUrl));
} else {
return new StringDownloader(fullUrl).call();
}
} catch (HttpRequest.HttpRequestException e) {
if (e.getCause() instanceof ConnectException || e.getCause() instanceof UnknownHostException) {
Logs.error(MessageFormat.format(SONAR_SERVER_CAN_NOT_BE_REACHED, serverUrl));
}
throw e;
}
}
private HttpRequest newHttpRequest(URL url) {
HttpRequest request = HttpRequest.get(url);
request.trustAllCerts().trustAllHosts();
request.acceptGzipEncoding().uncompress(true);
request.connectTimeout(CONNECT_TIMEOUT_MILLISECONDS).readTimeout(READ_TIMEOUT_MILLISECONDS);
request.userAgent(userAgent);
return request;
}
/**
* Parse out a charset from a content type header.
*
* @param contentType e.g. "text/html; charset=EUC-JP"
* @return "EUC-JP", or null if not found. Charset is trimmed and upper-cased.
*/
static String getCharsetFromContentType(String contentType) {
if (contentType == null) {
return null;
}
Matcher m = CHARSET_PATTERN.matcher(contentType);
if (m.find()) {
return m.group(1).trim().toUpperCase();
}
return null;
}
}
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