private static ConditionInformation ExecuteExtractors(ConditionalHeaders condHeaders, NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion, ConditionExtractor[] extractors)
{
ConditionInformation conditionInformation;
ConditionInformation conditionInformation1 = null;
ConditionExtractor[] conditionExtractorArray = extractors;
int num = 0;
Label1:
while (num < (int)conditionExtractorArray.Length)
{
ConditionExtractor conditionExtractor = conditionExtractorArray[num];
try
{
if (!conditionExtractor.ProcessConditionalHeader(condHeaders, requestHeaders, operationType, requestVersion, out conditionInformation1))
{
goto Label0;
}
else
{
conditionInformation = conditionInformation1;
}
}
catch (InvalidHeaderProtocolException invalidHeaderProtocolException)
{
conditionInformation = null;
}
return(conditionInformation);
}
return(null);
Label0:
num++;
goto Label1;
}
public static ConditionInformation GetConditionInfoFromRequest(NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion)
{
ConditionalHeaders conditionalHeadersFromRequest = ConditionExtractor.GetConditionalHeadersFromRequest(requestHeaders);
if (conditionalHeadersFromRequest == null)
{
return(null);
}
if (operationType == OperationTypeForConditionParsing.ReadOperation || operationType == OperationTypeForConditionParsing.WriteOperation)
{
return(ConditionExtractor.ExecuteExtractors(conditionalHeadersFromRequest, requestHeaders, operationType, requestVersion, ConditionExtractor.extractors));
}
NephosAssertionException.Assert(operationType == OperationTypeForConditionParsing.CopyOperation);
ConditionInformation copySourceIfModifiedSince = ConditionExtractor.ExecuteExtractors(conditionalHeadersFromRequest, requestHeaders, operationType, requestVersion, ConditionExtractor.extractors);
ConditionInformation conditionInformation = ConditionExtractor.ExecuteExtractors(conditionalHeadersFromRequest, requestHeaders, operationType, requestVersion, ConditionExtractor.copySourceExtractors);
if (copySourceIfModifiedSince == null)
{
return(conditionInformation);
}
if (conditionInformation != null)
{
copySourceIfModifiedSince.CopySourceIfModifiedSince = conditionInformation.CopySourceIfModifiedSince;
copySourceIfModifiedSince.CopySourceIfNotModifiedSince = conditionInformation.CopySourceIfNotModifiedSince;
copySourceIfModifiedSince.CopySourceIfMatch = conditionInformation.CopySourceIfMatch;
copySourceIfModifiedSince.CopySourceIfNoneMatch = conditionInformation.CopySourceIfNoneMatch;
NephosAssertionException.Assert(copySourceIfModifiedSince.ConditionFailStatusCode == conditionInformation.ConditionFailStatusCode);
}
return(copySourceIfModifiedSince);
}
static ConditionExtractor()
{
ConditionExtractor[] ifModifiedConditionExtractor = new ConditionExtractor[] { new IfModifiedConditionExtractor(), new IfUnmodifiedConditionExtractor(), new IfMatchConditionExtractor(), new IfNoneMatchConditionExtractor(), new IfRangeConditionExtractor() };
ConditionExtractor.extractors = ifModifiedConditionExtractor;
ConditionExtractor[] copySourceIfModifiedConditionExtractor = new ConditionExtractor[] { new CopySourceIfModifiedConditionExtractor(), new CopySourceIfUnmodifiedConditionExtractor(), new CopySourceIfMatchConditionExtractor(), new CopySourceIfNoneMatchConditionExtractor() };
ConditionExtractor.copySourceExtractors = copySourceIfModifiedConditionExtractor;
}
public static ConditionInformation GetConditionInfoFromIncrementalCopyRequest(NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion)
{
ConditionalHeaders conditionalHeadersFromRequest = ConditionExtractor.GetConditionalHeadersFromRequest(requestHeaders);
if (conditionalHeadersFromRequest == null)
{
return(null);
}
return(ConditionExtractor.ExecuteExtractors(conditionalHeadersFromRequest, requestHeaders, operationType, requestVersion, ConditionExtractor.extractors));
}
protected override bool ProcessConditionalHeader(ConditionalHeaders condHeaders, NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion, out ConditionInformation outputCondition)
{
DateTime?nullable;
if (!ConditionExtractor.ShouldThisVersionFailMultipleConditions(requestVersion))
{
if (!string.IsNullOrEmpty(condHeaders.IfRange))
{
outputCondition = null;
return(false);
}
if (string.IsNullOrEmpty(condHeaders.IfUnmodifiedSince) || !string.IsNullOrEmpty(condHeaders.IfMatch))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.IfModifiedSince) || !string.IsNullOrEmpty(condHeaders.IfNoneMatch))
{
outputCondition = null;
return(false);
}
}
else
{
if (string.IsNullOrEmpty(condHeaders.IfUnmodifiedSince))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.IfMatch))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.IfModifiedSince) || !string.IsNullOrEmpty(condHeaders.IfNoneMatch))
{
throw new MultipleConditionHeaderProtocolException();
}
}
ConditionInformation conditionInformation = new ConditionInformation()
{
ConditionFailStatusCode = HttpStatusCode.PreconditionFailed
};
if (!HttpUtilities.TryGetDateTimeFromHttpString(condHeaders.IfUnmodifiedSince, out nullable))
{
throw new InvalidHeaderProtocolException("If-Unmodified-Since", condHeaders.IfUnmodifiedSince);
}
conditionInformation.IfNotModifiedSince = new DateTime?((nullable.Value < DateTime.MaxValue.AddSeconds(-1) ? nullable.Value.AddSeconds(1) : nullable.Value));
conditionInformation.ResourceExistsCondition = new ResourceExistenceCondition?(ResourceExistenceCondition.MayExist);
outputCondition = conditionInformation;
return(true);
}
public bool ProcessConditionalHeader(ConditionalHeaders condHeaders, NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion, ConditionInformation outputCondition)
{
if (ConditionExtractor.ShouldThisVersionFailMultipleConditions(requestVersion))
{
return(false);
}
if (string.IsNullOrEmpty(condHeaders.IfRange))
{
return(false);
}
HttpRequestAccessorCommon.RemoveRangeHeaderValues(requestHeaders);
return(true);
}
public static ConditionInformation GetConditionInfoFromRequest(NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion)
{
ConditionalHeaders conditionalHeadersFromRequest = ConditionExtractor.GetConditionalHeadersFromRequest(requestHeaders);
if (conditionalHeadersFromRequest == null)
{
return(null);
}
IStringDataEventStream info = Logger <IRestProtocolHeadLogger> .Instance.Info;
object[] ifModifiedSince = new object[] { conditionalHeadersFromRequest.IfModifiedSince ?? "<null>", conditionalHeadersFromRequest.IfUnmodifiedSince ?? "<null>", conditionalHeadersFromRequest.IfMatch ?? "<null>", conditionalHeadersFromRequest.IfNoneMatch ?? "<null>", conditionalHeadersFromRequest.IfRange ?? "<null>", conditionalHeadersFromRequest.CopySourceIfModifiedSince ?? "<null>", conditionalHeadersFromRequest.CopySourceIfUnmodifiedSince ?? "<null>", conditionalHeadersFromRequest.CopySourceIfMatch ?? "<null>", conditionalHeadersFromRequest.CopySourceIfNoneMatch ?? "<null>" };
info.Log("Conditional Headers:[IfModifiedSince = {0}, IfUnmodifiedSince = {1}, IfMatch = {2}, IfNoneMatch = {3}, IfRange = {4}, CopySourceIfModifiedSince = {5}, CopySourceIfUnmodifiedSince = {6}, CopySourceIfMatch = {7}, CopySourceIfNoneMatch = {8}]", ifModifiedSince);
return(MultipleConditionExtractor.ExecuteExtractors(conditionalHeadersFromRequest, requestHeaders, operationType, requestVersion, MultipleConditionExtractor.Extractors));
}
public static bool IsRequestConditional(NameValueCollection requestHeaders)
{
return(ConditionExtractor.GetConditionalHeadersFromRequest(requestHeaders) != null);
}
protected override bool ProcessConditionalHeader(ConditionalHeaders condHeaders, NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion, out ConditionInformation outputCondition)
{
DateTime lastModifiedTimeFromETag;
DateTime?nullable = null;
if (!ConditionExtractor.ShouldThisVersionFailMultipleConditions(requestVersion))
{
if (!string.IsNullOrEmpty(condHeaders.IfRange))
{
outputCondition = null;
return(false);
}
if (string.IsNullOrEmpty(condHeaders.CopySourceIfMatch))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.CopySourceIfNoneMatch) || !string.IsNullOrEmpty(condHeaders.CopySourceIfModifiedSince))
{
outputCondition = null;
return(false);
}
if (Comparison.StringContains(condHeaders.CopySourceIfMatch, ","))
{
throw new InvalidHeaderProtocolException("x-ms-source-if-match", condHeaders.CopySourceIfMatch);
}
if (!string.IsNullOrEmpty(condHeaders.CopySourceIfUnmodifiedSince) && !HttpUtilities.TryGetDateTimeFromHttpString(condHeaders.CopySourceIfUnmodifiedSince, out nullable))
{
throw new InvalidHeaderProtocolException("x-ms-source-if-unmodified-since", condHeaders.CopySourceIfUnmodifiedSince);
}
}
else
{
if (string.IsNullOrEmpty(condHeaders.CopySourceIfMatch))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.CopySourceIfModifiedSince) || !string.IsNullOrEmpty(condHeaders.CopySourceIfNoneMatch))
{
throw new MultipleConditionHeaderProtocolException();
}
if (Comparison.StringContains(condHeaders.CopySourceIfMatch, ","))
{
throw new MultipleConditionHeaderProtocolException();
}
}
ConditionInformation conditionInformation = new ConditionInformation()
{
ConditionFailStatusCode = HttpStatusCode.PreconditionFailed
};
if (Comparison.StringEqualsIgnoreCase(condHeaders.CopySourceIfMatch, "*"))
{
outputCondition = null;
return(false);
}
try
{
lastModifiedTimeFromETag = BasicHttpProcessor.GetLastModifiedTimeFromETag(condHeaders.CopySourceIfMatch);
}
catch (InvalidHeaderProtocolException invalidHeaderProtocolException1)
{
InvalidHeaderProtocolException invalidHeaderProtocolException = invalidHeaderProtocolException1;
if (!VersioningHelper.IsPreSeptember09OrInvalidVersion(requestVersion))
{
throw new UnrecognizedIfMatchConditionException(new bool?(true), invalidHeaderProtocolException);
}
throw;
}
if (!VersioningHelper.IsPreSeptember09OrInvalidVersion(requestVersion))
{
conditionInformation.CopySourceIfMatch = new DateTime?(lastModifiedTimeFromETag);
}
else
{
conditionInformation.CopySourceIfNotModifiedSince = new DateTime?(lastModifiedTimeFromETag);
}
if (nullable.HasValue && !HttpUtilities.DateTimesEqualsUpToSeconds(nullable.Value, lastModifiedTimeFromETag))
{
outputCondition = null;
return(false);
}
outputCondition = conditionInformation;
return(true);
}
protected override bool ProcessConditionalHeader(ConditionalHeaders condHeaders, NameValueCollection requestHeaders, OperationTypeForConditionParsing operationType, string requestVersion, out ConditionInformation outputCondition)
{
DateTime lastModifiedTimeFromETag;
bool? nullable;
DateTime?nullable1 = null;
if (!ConditionExtractor.ShouldThisVersionFailMultipleConditions(requestVersion))
{
if (!string.IsNullOrEmpty(condHeaders.IfRange))
{
outputCondition = null;
return(false);
}
if (string.IsNullOrEmpty(condHeaders.IfMatch))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.IfNoneMatch) || !string.IsNullOrEmpty(condHeaders.IfModifiedSince))
{
outputCondition = null;
return(false);
}
if (Comparison.StringContains(condHeaders.IfMatch, ","))
{
throw new InvalidHeaderProtocolException("If-Match", condHeaders.IfMatch);
}
if (!string.IsNullOrEmpty(condHeaders.IfUnmodifiedSince) && !HttpUtilities.TryGetDateTimeFromHttpString(condHeaders.IfUnmodifiedSince, out nullable1))
{
throw new InvalidHeaderProtocolException("If-Unmodified-Since", condHeaders.IfUnmodifiedSince);
}
}
else
{
if (string.IsNullOrEmpty(condHeaders.IfMatch))
{
outputCondition = null;
return(false);
}
if (!string.IsNullOrEmpty(condHeaders.IfModifiedSince) || !string.IsNullOrEmpty(condHeaders.IfNoneMatch))
{
throw new MultipleConditionHeaderProtocolException();
}
if (Comparison.StringContains(condHeaders.IfMatch, ","))
{
throw new MultipleConditionHeaderProtocolException();
}
}
ConditionInformation conditionInformation = new ConditionInformation()
{
ConditionFailStatusCode = HttpStatusCode.PreconditionFailed,
ResourceExistsCondition = new ResourceExistenceCondition?(ResourceExistenceCondition.MustExist)
};
if (!Comparison.StringEqualsIgnoreCase(condHeaders.IfMatch, "*"))
{
try
{
lastModifiedTimeFromETag = BasicHttpProcessor.GetLastModifiedTimeFromETag(condHeaders.IfMatch);
}
catch (InvalidHeaderProtocolException invalidHeaderProtocolException1)
{
InvalidHeaderProtocolException invalidHeaderProtocolException = invalidHeaderProtocolException1;
if (!VersioningHelper.IsPreSeptember09OrInvalidVersion(requestVersion))
{
if (operationType == OperationTypeForConditionParsing.CopyOperation)
{
nullable = new bool?(false);
}
else
{
nullable = null;
}
throw new UnrecognizedIfMatchConditionException(nullable, invalidHeaderProtocolException);
}
throw;
}
if (!VersioningHelper.IsPreSeptember09OrInvalidVersion(requestVersion))
{
conditionInformation.IfMatch = new DateTime[] { lastModifiedTimeFromETag };
}
else
{
conditionInformation.IfNotModifiedSince = new DateTime?(lastModifiedTimeFromETag);
conditionInformation.ResourceExistsCondition = new ResourceExistenceCondition?(ResourceExistenceCondition.MayExist);
}
if (nullable1.HasValue && !HttpUtilities.DateTimesEqualsUpToSeconds(nullable1.Value, lastModifiedTimeFromETag))
{
outputCondition = null;
return(false);
}
}
else
{
if (operationType == OperationTypeForConditionParsing.ReadOperation)
{
outputCondition = null;
return(false);
}
if (nullable1.HasValue)
{
conditionInformation.IfNotModifiedSince = new DateTime?((nullable1.Value < DateTime.MaxValue.AddSeconds(-1) ? nullable1.Value.AddSeconds(1) : nullable1.Value));
}
}
outputCondition = conditionInformation;
return(true);
}