public SnapshotDTO(Snapshot snapshot)
{
TimeBlock = snapshot.TimeBlock;
ApplicationName = snapshot.ApplicationName;
LogName = snapshot.LogName;
SnapshotValue = snapshot.SnapshotValue;
Status = snapshot.Status;
}
public HttpResponseMessage Log(Snapshot snapshot)
{
if (ModelState.IsValid)
{
Subscription subscriber = FindSubscription(snapshot.ApplicationName, snapshot.LogName);
if (subscriber == null)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Such a log has not been subscribed"
},
Configuration.Formatters.JsonFormatter
);
}
else if (!subscriber.APIKey.Equals(snapshot.APIKey, StringComparison.OrdinalIgnoreCase))
{
return Request.CreateResponse(
HttpStatusCode.Unauthorized,
new
{
Success = false,
Error = "Invalid API Key"
},
Configuration.Formatters.JsonFormatter
);
}
else if (subscriber.Verified == false)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Not verified"
},
Configuration.Formatters.JsonFormatter
);
}
else
{
Snapshot existing = FindSnapshot(snapshot.ApplicationName, snapshot.LogName);
if (existing != null)
{
if (existing.Status != "Pending")
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = string.Format(
"Snapshot cannot be edited in {0} status",
existing.Status
)
},
Configuration.Formatters.JsonFormatter
);
}
else
{
existing.SnapshotValue = snapshot.SnapshotValue;
var replaceOperation = TableOperation.Replace(existing);
snapshotsTable.Execute(replaceOperation);
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = true,
Message = "Updated existing Snapshot, Logging is still Pending",
Snapshot = new SnapshotDTO(snapshot),
},
Configuration.Formatters.JsonFormatter
);
}
}
else
{
snapshot.APIKey = null;
var insertOperation = TableOperation.Insert(snapshot);
snapshotsTable.Execute(insertOperation);
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = true,
Message = "Created Snapshot, Logging is Pending",
Snapshot = new SnapshotDTO(snapshot)
},
Configuration.Formatters.JsonFormatter
);
}
}
}
List<string> errorList = ModelState.Values
.SelectMany(m => m.Errors)
.Select(e => e.ErrorMessage)
.Where(s => !string.IsNullOrWhiteSpace(s))
.ToList();
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Errors = errorList,
Snapshot = new SnapshotDTO(snapshot)
},
Configuration.Formatters.JsonFormatter
);
}
public ActionResult Log(Snapshot snapshot)
{
if (ModelState.IsValid)
{
Subscription subscriber = FindSubscription(snapshot.ApplicationName, snapshot.LogName);
if (subscriber == null)
{
ModelState.AddModelError(string.Empty, "Such a log has not been subscribed");
}
else if (!subscriber.APIKey.Equals(snapshot.APIKey, StringComparison.OrdinalIgnoreCase))
{
ModelState.AddModelError(string.Empty, "Invalid API Key");
}
else if (subscriber.Verified == false)
{
ModelState.AddModelError(string.Empty, "Not currently verified");
}
else
{
Snapshot existing = FindSnapshot(snapshot.ApplicationName, snapshot.LogName);
if (existing != null)
{
if (existing.Status != "Pending")
{
ModelState.AddModelError(string.Empty, "Snapshot cannot be edited because it isn't in Pending status");
}
else
{
existing.SnapshotValue = snapshot.SnapshotValue;
var replaceOperation = TableOperation.Replace(existing);
snapshotsTable.Execute(replaceOperation);
return RedirectToAction("Index");
}
}
else
{
snapshot.APIKey = null; // No need to store this after verification
var insertOperation = TableOperation.Insert(snapshot);
snapshotsTable.Execute(insertOperation);
return RedirectToAction("Index");
}
}
}
return View(snapshot);
}
public ActionResult Audit(Proof proof)
{
ViewData["BlobURL"] = blobContainer.Uri.AbsoluteUri;
ViewBag.ApplicationName = proof.ApplicationName;
ViewBag.LogName = proof.LogName;
ViewBag.LatestBlockNumber = BlockchainAPI.GetLatestBlock().BlockHeight;
if (ModelState.IsValid)
{
DateTime dt;
DateTime.TryParse(proof.TimeBlock, out dt);
// Validate Query
if (string.IsNullOrWhiteSpace(proof.ApplicationName))
{
return View("Proofs", model:new List<Proof>());
}
else if (string.IsNullOrWhiteSpace(proof.LogName))
{
return View("Proofs", model:new List<Proof>());
}
else if (dt.Ticks <= 0)
{
dt = DateTime.Now;
}
Subscription subscriber = FindSubscription(proof.ApplicationName, proof.LogName);
if (subscriber == null)
{
return View("Proofs", model: new List<Proof>());
}
else if (subscriber.Verified != true)
{
return View("Proofs", model: new List<Proof>());
}
TableRequestOptions reqOptions = new TableRequestOptions()
{
MaximumExecutionTime = TimeSpan.FromSeconds(10),
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(3), 3)
};
List<Proof> proofs;
try
{
Snapshot snapshot = new Snapshot()
{
ApplicationName = proof.ApplicationName,
LogName = proof.LogName,
TimeBlock = dt
};
var tableQuery = new TableQuery<Proof>().Where(
TableQuery.CombineFilters(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, proof.ApplicationName),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.LessThanOrEqual, snapshot.RowKey)
),
TableOperators.And,
TableQuery.GenerateFilterCondition("LogName", QueryComparisons.Equal, proof.LogName)
)
);
proofs = proofsArchiveTable.ExecuteQuery(tableQuery, reqOptions).ToList();
if (proofs.Count == 0)
{
return View("Proofs", model: new List<Proof>());
}
Proof proofToAudit = null;
long maxTicks = 0;
foreach (Proof singleProof in proofs)
{
long ticks = DateTime.Parse(singleProof.TimeBlock).Ticks;
if (ticks > maxTicks)
{
maxTicks = ticks;
proofToAudit = singleProof;
}
}
//
// TODO: Make API Call, Update Database!
//
if (proofToAudit.BitcoinBlockNumber == null
|| proofToAudit.BitcoinTransactionHash == null)
{
if (PopulateBitcoinInformation(proofToAudit))
{
var replaceOperation = TableOperation.Replace(proofToAudit);
proofsArchiveTable.Execute(replaceOperation);
}
}
return View("Proofs", model: new List<Proof>() { proofToAudit });
}
catch (StorageException se)
{
ViewBag.errorMessage = "Timeout error, try again.";
Trace.TraceError(se.Message);
return View("Error: " + se.Message);
}
}
return View("Proofs", model: new List<Proof>());
}
//
// GET: /Proof/appName=X&?logName=Y
//
public ActionResult GetProofs(string appName, string logName)
{
ViewData["BlobURL"] = blobContainer.Uri.AbsoluteUri;
ViewBag.ApplicationName = appName;
ViewBag.LogName = logName;
ViewBag.LatestBlockNumber = BlockchainAPI.GetLatestBlock().BlockHeight;
if (appName == null || logName == null)
{
return View();
}
Subscription subscriber = FindSubscription(appName, logName);
if (subscriber == null)
{
ViewBag.errorMessage = "Subscriber does not exist.";
ModelState.AddModelError(string.Empty, "Subscriber does not exist.");
return View("Proofs", model: new List<Proof>());
}
else if (subscriber.Verified != true)
{
ViewBag.errorMessage = "Subscriber is not currently verified, no proofs exist.";
ModelState.AddModelError(string.Empty, "Subscriber is not currently verified, no proofs exist.");
return View("Proofs", model: new List<Proof>());
}
TableRequestOptions reqOptions = new TableRequestOptions()
{
MaximumExecutionTime = TimeSpan.FromSeconds(10),
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(3), 3)
};
List<Proof> proofs;
try
{
Snapshot snapshot = new Snapshot()
{
ApplicationName = appName,
LogName = logName,
TimeBlock = Utils.NextOperationTB
};
var query = new TableQuery<Proof>().Where(
TableQuery.CombineFilters(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, appName),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.LessThanOrEqual, snapshot.RowKey)
),
TableOperators.And,
TableQuery.GenerateFilterCondition("LogName", QueryComparisons.Equal, logName)
)
);
proofs = proofsArchiveTable.ExecuteQuery(query, reqOptions).ToList();
return View("Proofs", model:proofs);
}
catch (StorageException se)
{
ViewBag.errorMessage = "Timeout error, try again.";
Trace.TraceError(se.Message);
return View("Error: " + se.Message);
}
}
private void ProcessSnapshot(Snapshot snapshotToProcess, string restartFlag)
{
Trace.TraceInformation("ProcessMessage Beginning PK: "
+ snapshotToProcess.PartitionKey);
// When we add the this snapshot to the queue, we may be adding it twice if
// the worker goes down down after adding previously before marking it as
// processed and then restarted. In this case the restartFlag would be marked.
// Create the queue message.
string queueMessageString =
snapshotToProcess.PartitionKey + "," +
snapshotToProcess.RowKey + "," +
restartFlag;
var queueMessage = new CloudQueueMessage(queueMessageString);
snapshotsQueue.AddMessage(queueMessage);
Trace.TraceInformation("ProcessMessage end PK: "
+ snapshotToProcess.PartitionKey);
}
public HttpResponseMessage Audit(ProofQueryDTO query)
{
if (ModelState.IsValid)
{
// Validate Query
if (string.IsNullOrWhiteSpace(query.ApplicationName))
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Must provide an Application Name to Audit"
},
Configuration.Formatters.JsonFormatter
);
}
else if (string.IsNullOrWhiteSpace(query.LogName))
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Must provide a Log Name to Audit"
},
Configuration.Formatters.JsonFormatter
);
}
else if (query.TimeBlock.Ticks <= 0)
{
query.TimeBlock = DateTime.Now;
}
Subscription subscriber = FindSubscription(query.ApplicationName, query.LogName);
if (subscriber == null)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Subscriber does not exist"
},
Configuration.Formatters.JsonFormatter
);
}
else if (subscriber.Verified != true)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Subscriber is not verified"
},
Configuration.Formatters.JsonFormatter
);
}
TableRequestOptions reqOptions = new TableRequestOptions()
{
MaximumExecutionTime = TimeSpan.FromSeconds(10),
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(3), 3)
};
List<Proof> proofs;
try
{
Snapshot snapshot = new Snapshot()
{
ApplicationName = query.ApplicationName,
LogName = query.LogName,
TimeBlock = query.TimeBlock
};
var tableQuery = new TableQuery<Proof>().Where(
TableQuery.CombineFilters(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, query.ApplicationName),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.LessThanOrEqual, snapshot.RowKey)
),
TableOperators.And,
TableQuery.GenerateFilterCondition("LogName", QueryComparisons.Equal, query.LogName)
)
);
proofs = proofsArchiveTable.ExecuteQuery(tableQuery, reqOptions).ToList();
if (proofs.Count == 0)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = string.Format("No proofs as of {0}", query.TimeBlock.ToString())
},
Configuration.Formatters.JsonFormatter
);
}
Proof proofToAudit = null;
long maxTicks = 0;
foreach (Proof proof in proofs)
{
long ticks = DateTime.Parse(proof.TimeBlock).Ticks;
if (ticks > maxTicks)
{
maxTicks = ticks;
proofToAudit = proof;
}
}
//
// TODO: Make API Call
//
if (proofToAudit.BitcoinBlockNumber == null
|| proofToAudit.BitcoinTransactionHash == null)
{
if (PopulateBitcoinInformation(proofToAudit))
{
var replaceOperation = TableOperation.Replace(proofToAudit);
proofsArchiveTable.Execute(replaceOperation);
}
}
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = true,
Proof = new ProofDTO(proofToAudit)
},
Configuration.Formatters.JsonFormatter
);
}
catch (StorageException se)
{
Trace.TraceError(se.Message);
throw new HttpResponseException(Request.CreateErrorResponse(
HttpStatusCode.ServiceUnavailable,
"Timeout error, try again."
));
}
}
List<string> errorList = ModelState.Values
.SelectMany(m => m.Errors)
.Select(e => e.ErrorMessage)
.Where(s => !string.IsNullOrWhiteSpace(s))
.ToList();
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Errors = errorList
},
Configuration.Formatters.JsonFormatter
);
}
public HttpResponseMessage Query(ProofQueryDTO query)
{
if (ModelState.IsValid)
{
if (string.IsNullOrWhiteSpace(query.ApplicationName))
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Must provide an Application Name to search for Proofs"
},
Configuration.Formatters.JsonFormatter
);
}
if (string.IsNullOrWhiteSpace(query.LogName))
{
if (query.TimeBlock.Ticks > 0)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Cannot query for Specific TimeBlock without Specific Log"
},
Configuration.Formatters.JsonFormatter
);
}
List<Subscription> subscriptions = FindSubscriptions(query.ApplicationName);
if (subscriptions.Count == 0)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = string.Format("{0} has no Subscriptions", query.ApplicationName)
},
Configuration.Formatters.JsonFormatter
);
}
bool foundVerified = false;
foreach (Subscription subscription in subscriptions)
{
if (subscription.Verified == true)
{
foundVerified = true;
break;
}
}
if (!foundVerified)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = string.Format("{0} has no Verified Subscriptions", query.ApplicationName)
},
Configuration.Formatters.JsonFormatter
);
}
}
else
{
Subscription subscriber = FindSubscription(query.ApplicationName, query.LogName);
if (subscriber == null)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Subscriber does not exist"
},
Configuration.Formatters.JsonFormatter
);
}
else if (subscriber.Verified != true)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Subscriber is not verified"
},
Configuration.Formatters.JsonFormatter
);
}
}
TableRequestOptions reqOptions = new TableRequestOptions()
{
MaximumExecutionTime = TimeSpan.FromSeconds(10),
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(3), 3)
};
List<Proof> proofs;
try
{
TableQuery<Proof> tableQuery;
if (string.IsNullOrWhiteSpace(query.LogName))
{
// Guaranteed from above that TB is null
tableQuery = new TableQuery<Proof>().Where(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, query.ApplicationName)
);
}
else
{
if (query.TimeBlock.Ticks <= 0)
{
Snapshot snapshot = new Snapshot()
{
ApplicationName = query.ApplicationName,
LogName = query.LogName,
TimeBlock = Utils.NextOperationTB
};
tableQuery = new TableQuery<Proof>().Where(
TableQuery.CombineFilters(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, query.ApplicationName),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.LessThanOrEqual, snapshot.RowKey)
),
TableOperators.And,
TableQuery.GenerateFilterCondition("LogName", QueryComparisons.Equal, query.LogName)
)
);
}
else
{
Snapshot snapshot = new Snapshot()
{
ApplicationName = query.ApplicationName,
LogName = query.LogName,
TimeBlock = query.TimeBlock
};
string queryComparison;
if (query.QueryComparison.Equals("Equal", StringComparison.InvariantCultureIgnoreCase))
{
queryComparison = QueryComparisons.Equal;
}
else if (query.QueryComparison.Equals("LessThan", StringComparison.InvariantCultureIgnoreCase))
{
queryComparison = QueryComparisons.LessThan;
}
else if (query.QueryComparison.Equals("GreaterThan", StringComparison.InvariantCultureIgnoreCase))
{
queryComparison = QueryComparisons.GreaterThan;
}
else if (query.QueryComparison.Equals("LessThanOrEqual", StringComparison.InvariantCultureIgnoreCase))
{
queryComparison = QueryComparisons.LessThanOrEqual;
}
else if (query.QueryComparison.Equals("GreaterThanOrEqual", StringComparison.InvariantCultureIgnoreCase))
{
queryComparison = QueryComparisons.GreaterThanOrEqual;
}
else
{
queryComparison = QueryComparisons.LessThanOrEqual;
}
tableQuery = new TableQuery<Proof>().Where(
TableQuery.CombineFilters(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, query.ApplicationName),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", queryComparison, snapshot.RowKey)
),
TableOperators.And,
TableQuery.GenerateFilterCondition("LogName", QueryComparisons.Equal, query.LogName)
)
);
}
}
proofs = proofsArchiveTable.ExecuteQuery(tableQuery, reqOptions).ToList();
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = true,
Proofs = proofs.Select(x => new ProofDTO(x))
},
Configuration.Formatters.JsonFormatter
);
}
catch (StorageException se)
{
Trace.TraceError(se.Message);
throw new HttpResponseException(Request.CreateErrorResponse(
HttpStatusCode.ServiceUnavailable,
"Timeout error, try again."
));
}
}
List<string> errorList = ModelState.Values
.SelectMany(m => m.Errors)
.Select(e => e.ErrorMessage)
.Where(s => !string.IsNullOrWhiteSpace(s))
.ToList();
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Errors = errorList
},
Configuration.Formatters.JsonFormatter
);
}
public HttpResponseMessage GetProofs(string appName, string logName)
{
if (string.IsNullOrWhiteSpace(appName))
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Must provide an Application Name to search for Proofs"
},
Configuration.Formatters.JsonFormatter
);
}
if (string.IsNullOrWhiteSpace(logName))
{
List<Subscription> subscriptions = FindSubscriptions(appName);
if (subscriptions.Count == 0)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = string.Format("{0} has no Subscriptions", appName)
},
Configuration.Formatters.JsonFormatter
);
}
bool foundVerified = false;
foreach (Subscription subscription in subscriptions)
{
if (subscription.Verified == true)
{
foundVerified = true;
break;
}
}
if (!foundVerified)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = string.Format("{0} has no Verified Subscriptions", appName)
},
Configuration.Formatters.JsonFormatter
);
}
}
else
{
Subscription subscriber = FindSubscription(appName, logName);
if (subscriber == null)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Subscriber does not exist"
},
Configuration.Formatters.JsonFormatter
);
}
else if (subscriber.Verified != true)
{
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = false,
Error = "Subscriber is not verified"
},
Configuration.Formatters.JsonFormatter
);
}
}
TableRequestOptions reqOptions = new TableRequestOptions()
{
MaximumExecutionTime = TimeSpan.FromSeconds(10),
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(3), 3)
};
List<Proof> proofs;
try
{
TableQuery<Proof> query;
if (string.IsNullOrWhiteSpace(logName))
{
query = new TableQuery<Proof>().Where(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, appName)
);
}
else
{
Snapshot snapshot = new Snapshot()
{
ApplicationName = appName,
LogName = logName,
TimeBlock = Utils.NextOperationTB
};
query = new TableQuery<Proof>().Where(
TableQuery.CombineFilters(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, appName),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.LessThanOrEqual, snapshot.RowKey)
),
TableOperators.And,
TableQuery.GenerateFilterCondition("LogName", QueryComparisons.Equal, logName)
)
);
}
proofs = proofsArchiveTable.ExecuteQuery(query, reqOptions).ToList();
return Request.CreateResponse(
HttpStatusCode.OK,
new
{
Success = true,
Proofs = proofs.Select(x => new ProofDTO(x))
},
Configuration.Formatters.JsonFormatter
);
}
catch (StorageException se)
{
Trace.TraceError(se.Message);
throw new HttpResponseException(Request.CreateErrorResponse(
HttpStatusCode.ServiceUnavailable,
"Timeout error, try again."
));
}
}