public void TokenizeRequestPathTests()
{
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("a/bb/ccc/dddd"), "a", "bb", "ccc", "dddd");
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("/a/bb/ccc/dddd"), "a", "bb", "ccc", "dddd");
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("/a/bb/ccc/dddd/"), "a", "bb", "ccc", "dddd", string.Empty);
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("/a/bb/ccc/dddd?ee"), "a", "bb", "ccc", "dddd");
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("/a/bb/ccc/dddd/?ee"), "a", "bb", "ccc", "dddd", string.Empty);
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("/a/bb/ccc/dddd#ee"), "a", "bb", "ccc", "dddd");
AssertAreDeepEqual(HttpParsingHelper.TokenizeRequestPath("/a/bb/ccc/dddd?ee/ff"), "a", "bb", "ccc", "dddd");
}
/// <summary>
/// Tries parsing given dependency telemetry item.
/// </summary>
/// <param name="httpDependency">Dependency item to parse. It is expected to be of HTTP type.</param>
/// <returns><code>true</code> if successfully parsed dependency.</returns>
internal static bool TryParse(ref DependencyTelemetry httpDependency)
{
string name = httpDependency.Name;
string host = httpDependency.Target;
string url = httpDependency.Data;
if (name == null || host == null || url == null)
{
return(false);
}
if (!HttpParsingHelper.EndsWithAny(host, AzureTableHostSuffixes))
{
return(false);
}
////
//// Table Service REST API: https://msdn.microsoft.com/en-us/library/azure/dd179363.aspx
////
string account = host.Substring(0, host.IndexOf('.'));
string verb;
string nameWithoutVerb;
// try to parse out the verb
HttpParsingHelper.ExtractVerb(name, out verb, out nameWithoutVerb, AzureTableSupportedVerbs);
List <string> pathTokens = HttpParsingHelper.TokenizeRequestPath(nameWithoutVerb);
string tableName = pathTokens.Count > 0 ? pathTokens[0] : string.Empty;
int idx = tableName.IndexOf('(');
if (idx >= 0)
{
tableName = tableName.Substring(0, idx);
}
httpDependency.Type = RemoteDependencyConstants.AzureTable;
httpDependency.Name = string.IsNullOrEmpty(verb)
? account + '/' + tableName
: verb + " " + account + '/' + tableName;
return(true);
}
internal static List <KeyValuePair <string, string> > ParseResourcePath(string requestPath)
{
if (!requestPath.Contains("("))
{
return(HttpParsingHelper.ParseResourcePath(requestPath));
}
// Parse OData v4 url format
List <string> tokens = HttpParsingHelper.TokenizeRequestPath(requestPath);
int pairCount = tokens.Count + 1;
var results = new List <KeyValuePair <string, string> >(pairCount);
for (int i = 0; i < tokens.Count; i++)
{
var current = tokens[i];
var valueStart = current.IndexOf('(');
var valueEnd = current.IndexOf(')');
if (valueStart == -1)
{
var next = tokens.Count < (i + 1) ? tokens[++i] : null;
results.Add(new KeyValuePair <string, string>(current, next));
}
else
{
var key = current.Substring(0, valueStart);
var value = current.Substring(valueStart + 2, valueEnd - valueStart - 3);
results.Add(new KeyValuePair <string, string>(key, value));
}
}
return(results);
}
/// <summary>
/// Tries parsing given dependency telemetry item.
/// </summary>
/// <param name="httpDependency">Dependency item to parse. It is expected to be of HTTP type.</param>
/// <returns><code>true</code> if successfully parsed dependency.</returns>
internal static bool TryParse(ref DependencyTelemetry httpDependency)
{
string name = httpDependency.Name;
string host = httpDependency.Target;
string url = httpDependency.Data;
if (name == null || host == null || url == null)
{
return(false);
}
if (!HttpParsingHelper.EndsWithAny(host, AzureBlobHostSuffixes))
{
return(false);
}
////
//// Blob Service REST API: https://msdn.microsoft.com/en-us/library/azure/dd135733.aspx
////
string account = host.Substring(0, host.IndexOf('.'));
string verb;
string nameWithoutVerb;
// try to parse out the verb
HttpParsingHelper.ExtractVerb(name, out verb, out nameWithoutVerb, AzureBlobSupportedVerbs);
List <string> pathTokens = HttpParsingHelper.TokenizeRequestPath(nameWithoutVerb);
string container = null;
string blob = null;
if (pathTokens.Count == 1)
{
container = pathTokens[0];
}
else if (pathTokens.Count > 1)
{
Dictionary <string, string> queryParameters = HttpParsingHelper.ExtractQuryParameters(url);
string resType;
if (queryParameters == null || !queryParameters.TryGetValue("restype", out resType) ||
!string.Equals(resType, "container", StringComparison.OrdinalIgnoreCase))
{
// if restype != container then the last path entry is blob name
blob = pathTokens[pathTokens.Count - 1];
httpDependency.Properties["Blob"] = blob;
pathTokens.RemoveAt(pathTokens.Count - 1);
}
container = string.Join("/", pathTokens);
}
if (container != null)
{
httpDependency.Properties["Container"] = container;
}
// This is very naive overwriting of Azure Blob dependency that is compatible with the today's implementation
//
// Possible improvements:
//
// 1. Use specific name for specific operations. Like "Lease Blob" for "?comp=lease" query parameter
// 2. Use account name as a target instead of "account.blob.core.windows.net"
httpDependency.Type = RemoteDependencyConstants.AzureBlob;
httpDependency.Name = string.IsNullOrEmpty(verb) ? account : verb + " " + account;
return(true);
}
