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updated getLastModified() to support the file:// protocol

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Former-commit-id: e23b72db0070c2ecf22a725cc936451440ad530f
This commit is contained in:
Jeremy Long
2013-08-03 12:09:44 -04:00
parent 31fbc7389b
commit e4a36545d7
1 changed files with 29 additions and 15 deletions
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44
dependency-check-core/src/main/java/org/owasp/dependencycheck/utils/Downloader.java
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@@ -27,6 +27,7 @@ import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.SocketAddress;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
@@ -162,7 +163,8 @@ public final class Downloader {
/**
* Makes an HTTP Head request to retrieve the last modified date of the
* given URL.
* given URL. If the file:// protocol is specified, then the lastTimestamp
* of the file is returned.
*
* @param url the URL to retrieve the timestamp from
* @return an epoch timestamp
@@ -170,21 +172,33 @@ public final class Downloader {
* the HTTP request
*/
public static long getLastModified(URL url) throws DownloadFailedException {
HttpURLConnection conn = null;
long timestamp = 0;
try {
conn = Downloader.getConnection(url);
conn.setRequestMethod("HEAD");
conn.connect();
timestamp = conn.getLastModified();
} catch (Exception ex) {
throw new DownloadFailedException("Error making HTTP HEAD request.", ex);
} finally {
if (conn != null) {
try {
conn.disconnect();
} finally {
conn = null;
//TODO add the FPR protocol?
if ("file:".equalsIgnoreCase(url.getProtocol())) {
File f;
try {
f = new File(url.toURI());
} catch (URISyntaxException ex) {
final String msg = String.format("Unable to locate '%s'; is the cve.url-2.0.modified property set correctly?", url.toString());
throw new DownloadFailedException(msg);
}
timestamp = f.lastModified();
} else {
HttpURLConnection conn = null;
try {
conn = Downloader.getConnection(url);
conn.setRequestMethod("HEAD");
conn.connect();
timestamp = conn.getLastModified();
} catch (Exception ex) {
throw new DownloadFailedException("Error making HTTP HEAD request.", ex);
} finally {
if (conn != null) {
try {
conn.disconnect();
} finally {
conn = null;
}
}
}
}