@Override
protected boolean checkRemoteAvailability(
final long newerThen,
final ProxyRepository repository,
final ResourceStoreRequest request,
final boolean isStrict)
throws RemoteStorageException {
final URL remoteUrl =
appendQueryString(repository, request, getAbsoluteUrlFromBase(repository, request));
HttpRequestBase method;
HttpResponse httpResponse = null;
int statusCode = HttpStatus.SC_BAD_REQUEST;
// artifactory hack, it pukes on HEAD so we will try with GET if HEAD fails
boolean doGet = false;
{
method = new HttpHead(remoteUrl.toExternalForm());
try {
httpResponse =
executeRequestAndRelease(repository, request, method, repository.getRemoteUrl());
statusCode = httpResponse.getStatusLine().getStatusCode();
} catch (RemoteStorageException e) {
// If HEAD failed, attempt a GET. Some repos may not support HEAD method
doGet = true;
log.debug("HEAD method failed, will attempt GET. Exception: " + e.getMessage(), e);
} finally {
// HEAD returned error, but not exception, try GET before failing
if (!doGet && statusCode != HttpStatus.SC_OK) {
doGet = true;
log.debug("HEAD method failed, will attempt GET. Status: " + statusCode);
}
}
}
{
if (doGet) {
// create a GET
method = new HttpGet(remoteUrl.toExternalForm());
// execute it
httpResponse =
executeRequestAndRelease(repository, request, method, repository.getRemoteUrl());
statusCode = httpResponse.getStatusLine().getStatusCode();
}
}
// if we are not strict and remote is S3
if (!isStrict && isRemotePeerAmazonS3Storage(repository)) {
// if we are relaxed, we will accept any HTTP response code below 500. This means anyway the
// HTTP
// transaction succeeded. This method was never really detecting that the remoteUrl really
// denotes a root of
// repository (how could we do that?)
// this "relaxed" check will help us to "pass" S3 remote storage.
return statusCode >= HttpStatus.SC_OK && statusCode <= HttpStatus.SC_INTERNAL_SERVER_ERROR;
} else {
// non relaxed check is strict, and will select only the OK response
if (statusCode == HttpStatus.SC_OK) {
// we have it
// we have newer if this below is true
return makeDateFromHeader(httpResponse.getFirstHeader("last-modified")) > newerThen;
} else if ((statusCode >= HttpStatus.SC_MULTIPLE_CHOICES
&& statusCode < HttpStatus.SC_BAD_REQUEST)
|| statusCode == HttpStatus.SC_NOT_FOUND) {
if (RepositoryItemUid.PATH_ROOT.equals(request.getRequestPath())
&& statusCode == HttpStatus.SC_NOT_FOUND) {
// NEXUS-5944: Give it a chance: it might be remote Nexus with browsing disabled?
// to check that, we will check is remote is Nexus by pinging "well know" location
// if we got it, we will know it's only browsing forbidden on remote
final RemoteStorageContext ctx = getRemoteStorageContext(repository);
final HttpClient httpClient = (HttpClient) ctx.getContextObject(CTX_KEY_CLIENT);
final PageContext pageContext = new RepositoryPageContext(httpClient, repository);
final ResourceStoreRequest rmRequest =
new ResourceStoreRequest("/.meta/repository-metadata.xml");
final URL nxRepoMetadataUrl =
appendQueryString(
repository, rmRequest, getAbsoluteUrlFromBase(repository, rmRequest));
try {
final Page page = Page.getPageFor(pageContext, nxRepoMetadataUrl.toExternalForm());
if (page.getStatusCode() == 200) {
// this is a Nexus with browsing disabled. say OK
log.debug(
"Original GET request for URL {} failed with 404, but GET request for URL {} succeeded, we assume remote is a Nexus repository having browsing disabled.",
remoteUrl,
nxRepoMetadataUrl);
return true;
}
} catch (IOException e) {
// just fall trough
}
}
return false;
} else {
throw new RemoteStorageException(
"Unexpected response code while executing "
+ method.getMethod()
+ " method [repositoryId=\""
+ repository.getId()
+ "\", requestPath=\""
+ request.getRequestPath()
+ "\", remoteUrl=\""
+ remoteUrl.toString()
+ "\"]. Expected: \"SUCCESS (200)\". Received: "
+ statusCode
+ " : "
+ httpResponse.getStatusLine().getReasonPhrase());
}
}
}
@Override
protected boolean checkRemoteAvailability(
final long newerThen,
final ProxyRepository repository,
final ResourceStoreRequest request,
final boolean isStrict)
throws RemoteStorageException {
final URL remoteUrl =
appendQueryString(getAbsoluteUrlFromBase(repository, request), repository);
HttpRequestBase method;
HttpResponse httpResponse = null;
int statusCode = HttpStatus.SC_BAD_REQUEST;
// artifactory hack, it pukes on HEAD so we will try with GET if HEAD fails
boolean doGet = false;
{
method = new HttpHead(remoteUrl.toExternalForm());
try {
httpResponse = executeRequestAndRelease(repository, request, method);
statusCode = httpResponse.getStatusLine().getStatusCode();
} catch (RemoteStorageException e) {
// If HEAD failed, attempt a GET. Some repos may not support HEAD method
doGet = true;
getLogger().debug("HEAD method failed, will attempt GET. Exception: " + e.getMessage(), e);
} finally {
// HEAD returned error, but not exception, try GET before failing
if (!doGet && statusCode != HttpStatus.SC_OK) {
doGet = true;
getLogger().debug("HEAD method failed, will attempt GET. Status: " + statusCode);
}
}
}
{
if (doGet) {
// create a GET
method = new HttpGet(remoteUrl.toExternalForm());
// execute it
httpResponse = executeRequestAndRelease(repository, request, method);
statusCode = httpResponse.getStatusLine().getStatusCode();
}
}
// if we are not strict and remote is S3
if (!isStrict && isRemotePeerAmazonS3Storage(repository)) {
// if we are relaxed, we will accept any HTTP response code below 500. This means anyway the
// HTTP
// transaction succeeded. This method was never really detecting that the remoteUrl really
// denotes a root of
// repository (how could we do that?)
// this "relaxed" check will help us to "pass" S3 remote storage.
return statusCode >= HttpStatus.SC_OK && statusCode <= HttpStatus.SC_INTERNAL_SERVER_ERROR;
} else {
// non relaxed check is strict, and will select only the OK response
if (statusCode == HttpStatus.SC_OK) {
// we have it
// we have newer if this below is true
return makeDateFromHeader(httpResponse.getFirstHeader("last-modified")) > newerThen;
} else if ((statusCode >= HttpStatus.SC_MULTIPLE_CHOICES
&& statusCode < HttpStatus.SC_BAD_REQUEST)
|| statusCode == HttpStatus.SC_NOT_FOUND) {
return false;
} else {
throw new RemoteStorageException(
"Unexpected response code while executing "
+ method.getMethod()
+ " method [repositoryId=\""
+ repository.getId()
+ "\", requestPath=\""
+ request.getRequestPath()
+ "\", remoteUrl=\""
+ remoteUrl.toString()
+ "\"]. Expected: \"SUCCESS (200)\". Received: "
+ statusCode
+ " : "
+ httpResponse.getStatusLine().getReasonPhrase());
}
}
}
@Override
protected boolean checkRemoteAvailability(
long newerThen, ProxyRepository repository, ResourceStoreRequest request, boolean isStrict)
throws RemoteStorageException {
final URL remoteURL = getAbsoluteUrlFromBase(repository, request);
final String itemUrl = remoteURL.toString();
final AsyncHttpClient client = getClient(repository);
if (getLogger().isDebugEnabled()) {
getLogger()
.debug(
String.format(
"Checking remote availability of proxy repository \"%s\" (id=%s) on URL %s",
repository.getName(), repository.getId(), itemUrl));
}
// artifactory hack, it pukes on HEAD so we will try with GET if HEAD fails
boolean doGet = false;
Response responseObject = null;
int response = 400;
try {
responseObject = client.prepareHead(itemUrl).execute().get();
response = responseObject.getStatusCode();
validateResponse(repository, request, "HEAD", itemUrl, responseObject, 200);
} catch (ItemNotFoundException e) {
return false;
} catch (RemoteStorageException e) {
// If HEAD failed, attempt a GET. Some repos may not support HEAD method
doGet = true;
getLogger().debug("HEAD method failed, will attempt GET. Exception: " + e.getMessage(), e);
} catch (Exception e) {
throw new RemoteStorageException(e);
} finally {
// HEAD returned error, but not exception, try GET before failing
if (!doGet && response != 200) {
// try with GET unless some known to fail responses are in
doGet = (response != 401) && (response != 403);
getLogger().debug("HEAD method failed, will attempt GET. Status: " + response);
}
}
if (doGet) {
try {
responseObject = client.prepareGet(itemUrl).execute().get();
response = responseObject.getStatusCode();
validateResponse(repository, request, "GET", itemUrl, responseObject, 200);
} catch (ItemNotFoundException e) {
return false;
} catch (Exception e) {
throw new RemoteStorageException(e);
}
}
// if we are not strict and remote is S3
if (!isStrict && isRemotePeerAmazonS3Storage(repository)) {
// if we are relaxed, we will accept any HTTP response code below 500. This means anyway the
// HTTP
// transaction succeeded. This method was never really detecting that the remoteUrl really
// denotes a root of
// repository (how could we do that?)
// this "relaxed" check will help us to "pass" S3 remote storage.
return response >= 200 && response < 500;
} else {
// non relaxed check is strict, and will select only the OK response
if (response == 200) {
// we have it
// we have newer if this below is true
return AHCUtils.getLastModified(responseObject, System.currentTimeMillis()) > newerThen;
} else if ((response >= 300 && response < 400) || response == 404) {
return false;
} else {
throw new RemoteStorageException(
"Unexpected response code while executing GET"
+ " method [repositoryId=\""
+ repository.getId()
+ "\", requestPath=\""
+ request.getRequestPath()
+ "\", remoteUrl=\""
+ itemUrl
+ "\"]. Expected: \"SUCCESS (200)\". Received: "
+ response
+ " : "
+ responseObject.getStatusText());
}
}
}
