static void Main(string[] args)
{
startTime = DateTime.Now;
//Catch exceptions
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler);
//Catch ctrl+c to we can put out our summary
Console.CancelKeyPress += (sender, eventArgs) =>
{
eventArgs.Cancel = false;
WriteLog("!!CANCELLED!!");
keepRunning = false;
PrintSummary();
};
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
string strConfigFile = "CrossCloudBackup.xml";
if (args.Length > 0)
{
strConfigFile = args[0];
}
if (!File.Exists(strConfigFile))
{
new XDocument(
new XDeclaration("1.0", "utf-8", "yes"),
new XComment("CrossCloudBackup Local Config File"),
new XElement("root",
new XElement("AWSKey", "someValue"),
new XElement("AWSSecret", "someValue"),
new XElement("AWSRegion", "eu-west-1"),
new XElement("RSUsername", "someValue"),
new XElement("RSAPIKey", "someValue"),
new XElement("RSUseServiceNet", "false"),
new XElement("RSLocation", "UK"),
new XElement("ExcludeBuckets", ""),
new XElement("ExcludeContainers", ""),
//new XElement("MirrorAll", "true"), /TODO: Add Selective Sync
new XElement("RSBackupContainer", "s3-backup"),
new XElement("S3BackupBucket", "rs-backup")
//new XElement("TransferThreads", "3") //TODO: Add Threading
)
)
.Save(strConfigFile);
Console.WriteLine(strConfigFile + " not found, blank one created.");
Console.WriteLine("Press enter to exit...");
Console.ReadLine();
Environment.Exit(1);
}
//We know the config file exists, so open and read values
XDocument config = XDocument.Load(strConfigFile);
//Get AWS config
string AWSKey = config.Element("root").Element("AWSKey").Value;
string AWSSecret = config.Element("root").Element("AWSSecret").Value;
RegionEndpoint region = RegionEndpoint.EUWest1;
switch (config.Element("root").Element("AWSRegion").Value)
{
case "eu-west-1":
region = RegionEndpoint.EUWest1;
break;
case "sa-east-1":
region = RegionEndpoint.SAEast1;
break;
case "us-east-1":
region = RegionEndpoint.USEast1;
break;
case "ap-northeast-1":
region = RegionEndpoint.APNortheast1;
break;
case "us-west-2":
region = RegionEndpoint.USWest2;
break;
case "us-west-1":
region = RegionEndpoint.USWest1;
break;
case "ap-southeast-1":
region = RegionEndpoint.APSoutheast1;
break;
case "ap-southeast-2":
region = RegionEndpoint.APSoutheast2;
break;
default:
region = RegionEndpoint.EUWest1;
break;
}
//Create a connection to S3
WriteLog("Connecting to S3");
S3Client = AWSClientFactory.CreateAmazonS3Client(AWSKey, AWSSecret, region);
//Get RS config
Rackspace.CloudFiles.Utils.AuthUrl rsRegion = Rackspace.CloudFiles.Utils.AuthUrl.US;
switch (config.Element("root").Element("RSLocation").Value)
{
case "UK":
rsRegion = Rackspace.CloudFiles.Utils.AuthUrl.UK;
break;
case "US":
rsRegion = Rackspace.CloudFiles.Utils.AuthUrl.US;
break;
case "Mosso":
rsRegion = Rackspace.CloudFiles.Utils.AuthUrl.Mosso;
break;
}
//Create connection to Rackspace
WriteLog("Connecting to Rackspace Cloud Files");
RSConnection = new Connection(new UserCredentials(config.Element("root").Element("RSUsername").Value, config.Element("root").Element("RSAPIKey").Value, rsRegion), Convert.ToBoolean(config.Element("root").Element("RSUseServiceNet").Value));
//Get exclusions
string[] excludeBuckets = config.Element("root").Element("ExcludeBuckets").Value.Split(',');
string[] excludeContainers = config.Element("root").Element("ExcludeContainers").Value.Split(',');
//First process all the S3 buckets and stream right into Rackspace container.
WriteLog("Listing S3 Buckets");
ListBucketsResponse response = S3Client.ListBuckets();
WriteLog("Found " + response.Buckets.Count() + " buckets");
foreach (S3Bucket bucket in response.Buckets)
{
if (bucket.BucketName == config.Element("root").Element("S3BackupBucket").Value)
{
WriteLog("Skipping " + bucket.BucketName + " as backup folder");
}
else if (excludeBuckets.Contains(bucket.BucketName))
{
WriteLog("Skipping " + bucket.BucketName + " as in exclusions");
}
else
{
//We need to know if the bucket is in the right region, otherwise it will error
GetBucketLocationResponse locResponse = S3Client.GetBucketLocation(new GetBucketLocationRequest().WithBucketName(bucket.BucketName));
if (locResponse.Location == config.Element("root").Element("AWSRegion").Value)
{
WriteLog("Processing " + bucket.BucketName);
//Get list of files
ListObjectsRequest request = new ListObjectsRequest();
request.BucketName = bucket.BucketName;
do
{
ListObjectsResponse filesResponse = S3Client.ListObjects(request);
WriteLog("Found " + filesResponse.S3Objects.Count() + " files");
if (filesResponse.IsTruncated)
{
WriteLog("there are additional pages of files");
}
foreach (S3Object file in filesResponse.S3Objects)
{
bool bolTransfer = false;
//See if it exists on Rackspace
string uri = RSConnection.StorageUrl + "/" + config.Element("root").Element("RSBackupContainer").Value + "/" + bucket.BucketName + "/" + file.Key;
try
{
var req = (HttpWebRequest)WebRequest.Create(uri);
req.Headers.Add("X-Auth-Token", RSConnection.AuthToken);
req.Method = "HEAD";
//Compare Etags to see if we need to sync
using (var resp = req.GetResponse() as HttpWebResponse)
{
if ("\"" + resp.Headers["eTag"] + "\"" != file.ETag)
{
bolTransfer = true;
}
}
}
catch (System.Net.WebException e)
{
if (e.Status == WebExceptionStatus.ProtocolError && ((HttpWebResponse)e.Response).StatusCode == HttpStatusCode.NotFound)
{
//Item not found, so upload
bolTransfer = true;
}
//WriteLog("End Request to " + uri);
}
if (file.StorageClass == "GLACIER")
{
bolTransfer = false; //We can't get things out of Glacier, but they aer still listed here.
}
if (bolTransfer)
{
WriteLog("Syncing " + file.Key);
using (GetObjectResponse getResponse = S3Client.GetObject(new GetObjectRequest().WithBucketName(bucket.BucketName).WithKey(file.Key)))
{
using (Stream s = getResponse.ResponseStream)
{
//We can stream right from s3 to CF, no need to store in memory or filesystem.
var req = (HttpWebRequest)WebRequest.Create(uri);
req.Headers.Add("X-Auth-Token", RSConnection.AuthToken);
req.Method = "PUT";
req.SendChunked = true;
req.AllowWriteStreamBuffering = false;
req.Timeout = -1;
using (Stream stream = req.GetRequestStream())
{
byte[] data = new byte[8192];
int bytesRead = 0;
while ((bytesRead = s.Read(data, 0, data.Length)) > 0)
{
stream.Write(data, 0, bytesRead);
}
stream.Flush();
stream.Close();
}
req.GetResponse().Close();
}
}
intTransferred++;
bytesTransferred += file.Size;
}
else
{
WriteLog("Skipping " + file.Key);
intSkipped++;
}
//Check our exit condition
if (!keepRunning)
{
break;
}
}
//Loop if there is more than 1000 files
if (filesResponse.IsTruncated)
{
request.Marker = filesResponse.NextMarker;
}
else
{
request = null;
}
if (!keepRunning)
{
break;
}
} while (request != null);
}
}
if (!keepRunning)
{
break;
}
}
//Now get all the Rackspace containers and stream them to Amazon
WriteLog("Listing CF Containers");
List <string> lstContainers = RSConnection.GetContainers();
WriteLog("Found " + lstContainers.Count() + " containers");
foreach (string container in lstContainers)
{
if (container == config.Element("root").Element("RSBackupContainer").Value)
{
WriteLog("Skipping " + container + " as backup folder");
}
else if (excludeContainers.Contains(container))
{
WriteLog("Skipping " + container + " as in exclusions");
}
else
{
WriteLog("Processing " + container);
XmlDocument containerInfo = RSConnection.GetContainerInformationXml(container);
do
{
int filesCount = containerInfo.GetElementsByTagName("object").Count;
WriteLog("Found " + filesCount + " files");
foreach (XmlNode file in containerInfo.GetElementsByTagName("object"))
{
bool bolTransfer = false;
string strBucketName = config.Element("root").Element("S3BackupBucket").Value;
string strKey = container + file.SelectSingleNode("name").InnerText;
//See if the file exists on s3
try
{
GetObjectMetadataResponse metaResp = S3Client.GetObjectMetadata(new GetObjectMetadataRequest().WithBucketName(strBucketName).WithKey(strKey));
//Compare the etags
if (metaResp.ETag != "\"" + file.SelectSingleNode("hash").InnerText + "\"")
{
bolTransfer = true;
}
}
catch (Amazon.S3.AmazonS3Exception e)
{
bolTransfer = true;
}
if (bolTransfer)
{
WriteLog("Syncing " + file.SelectSingleNode("name").InnerText);
//God the C# binding sucks, so let's stream manually
string uri = RSConnection.StorageUrl + "/" + container + "/" + file.SelectSingleNode("name").InnerText;
var req = (HttpWebRequest)WebRequest.Create(uri);
req.Headers.Add("X-Auth-Token", RSConnection.AuthToken);
req.Method = "GET";
using (var resp = req.GetResponse() as HttpWebResponse)
{
using (Stream s = resp.GetResponseStream())
{
string today = String.Format("{0:ddd,' 'dd' 'MMM' 'yyyy' 'HH':'mm':'ss' 'zz00}", DateTime.Now);
string stringToSign = "PUT\n" +
"\n" +
file.SelectSingleNode("content_type").InnerText + "\n" +
"\n" +
"x-amz-date:" + today + "\n" +
"/" + strBucketName + "/" + strKey;
Encoding ae = new UTF8Encoding();
HMACSHA1 signature = new HMACSHA1(ae.GetBytes(AWSSecret));
string encodedCanonical = Convert.ToBase64String(signature.ComputeHash(ae.GetBytes(stringToSign)));
string authHeader = "AWS " + AWSKey + ":" + encodedCanonical;
string uriS3 = "https://" + strBucketName + ".s3.amazonaws.com/" + strKey;
var reqS3 = (HttpWebRequest)WebRequest.Create(uriS3);
reqS3.Headers.Add("Authorization", authHeader);
reqS3.Headers.Add("x-amz-date", today);
reqS3.ContentType = file.SelectSingleNode("content_type").InnerText;
reqS3.ContentLength = Convert.ToInt32(file.SelectSingleNode("bytes").InnerText);
reqS3.Method = "PUT";
reqS3.AllowWriteStreamBuffering = false;
if (reqS3.ContentLength == -1L)
{
reqS3.SendChunked = true;
}
using (Stream streamS3 = reqS3.GetRequestStream())
{
byte[] data = new byte[32768];
int bytesRead = 0;
while ((bytesRead = s.Read(data, 0, data.Length)) > 0)
{
streamS3.Write(data, 0, bytesRead);
}
streamS3.Flush();
streamS3.Close();
}
reqS3.GetResponse().Close();
}
}
intTransferred++;
bytesTransferred += Convert.ToInt64(file.SelectSingleNode("bytes").InnerText);
}
else
{
WriteLog("Skipping " + file.SelectSingleNode("name").InnerText);
intSkipped++;
}
//Check our exit condition
if (!keepRunning)
{
break;
}
}
if (filesCount < 10000)
{
containerInfo = null;
}
else
{
//Fetch the next list, but the Rackspace binding doesn't support markers with XML responses....
try
{
string uri = RSConnection.StorageUrl + "/" + container + "?format=xml&marker=" + Uri.EscapeUriString(containerInfo.FirstChild.NextSibling.LastChild.SelectSingleNode("name").InnerText);
var req = (HttpWebRequest)WebRequest.Create(uri);
req.Headers.Add("X-Auth-Token", RSConnection.AuthToken);
req.Method = "GET";
using (var resp = req.GetResponse() as HttpWebResponse)
{
using (var reader = new System.IO.StreamReader(resp.GetResponseStream(), ASCIIEncoding.ASCII))
{
string responseText = reader.ReadToEnd();
containerInfo.LoadXml(responseText);
}
}
}
catch (System.Net.WebException e)
{
if (e.Status == WebExceptionStatus.ProtocolError && ((HttpWebResponse)e.Response).StatusCode == HttpStatusCode.NotFound)
{
containerInfo = null;
}
}
}
} while (containerInfo != null);
}
}
if (keepRunning)
{
WriteLog("Completed");
PrintSummary();
}
}