public static XmlDocument Run(string[] processes, string Language)
{
StringBuilder retString = new StringBuilder();
retString.Append(Global.XmlHeader + "<wps:ProcessDescriptions " + Global.WPSServiceVersion + " xml:lang='" + Language + "' " + Global.WPSXmlSchemas + " " + Global.WPSDescribeProcessSchema + ">");
// On identifier is ALL, catch all the available processes
if (processes.Length == 1 && Utils.StrICmp(processes[0], "ALL"))
{
ProcessDescription[] processDescriptions = GetCapabilities.getAvailableProcesses();
foreach (ProcessDescription process in processDescriptions)
{
retString.Append(process.GetProcessDescriptionDocument());
}
}
else
{
ExceptionReport exception = null;
// Loop through all the processes and get process description
foreach (string processId in processes)
{
try
{
retString.Append(ProcessDescription.GetProcessDescription(processId).GetProcessDescriptionDocument());
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
if (exception != null)
{
throw exception;
}
}
retString.Append("</wps:ProcessDescriptions>");
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(retString.ToString());
HttpContext.Current.Response.StatusCode = 200;
return(doc);
}
catch (XmlException ex)
{
throw new ExceptionReport("Unable to generate the description document. Contact the administrator." + ex.ToString());
}
}
public static XmlDocument Run(string[] processes, string Language)
{
StringBuilder retString = new StringBuilder();
retString.Append(Global.XmlHeader + "<wps:ProcessDescriptions " + Global.WPSServiceVersion + " xml:lang='" + Language + "' " + Global.WPSXmlSchemas + " " + Global.WPSDescribeProcessSchema + ">");
// On identifier is ALL, catch all the available processes
if (processes.Length == 1 && Utils.StrICmp(processes[0], "ALL"))
{
ProcessDescription[] processDescriptions = GetCapabilities.getAvailableProcesses();
foreach (ProcessDescription process in processDescriptions)
retString.Append(process.GetProcessDescriptionDocument());
}
else
{
ExceptionReport exception = null;
// Loop through all the processes and get process description
foreach (string processId in processes)
{
try
{
retString.Append(ProcessDescription.GetProcessDescription(processId).GetProcessDescriptionDocument());
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
if (exception != null)
throw exception;
}
retString.Append("</wps:ProcessDescriptions>");
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(retString.ToString());
HttpContext.Current.Response.StatusCode = 200;
return doc;
}
catch(XmlException ex)
{
throw new ExceptionReport("Unable to generate the description document. Contact the administrator." + ex.ToString());
}
}
public XmlDocument RunFromHTTPGet()
{
string request = Utils.GetParameter("request");
string service = Utils.GetParameter("service");
string version = Utils.GetParameter("version");
string language = Utils.GetParameter("language", Global.DefaultLanguage);
ExceptionReport exception = null;
if (service != "WPS")
exception = new ExceptionReport(exception, "The service requested must be a WPS service.",
ExceptionCode.InvalidParameterValue, "service");
if (!Global.SupportedLanguages.Contains(language))
exception = new ExceptionReport(exception, "The language '" + language + "' is not supported by this WPS service. " +
"Use one of the followings: " + string.Join(", ", Global.SupportedLanguages.ToArray()),
ExceptionCode.InvalidParameterValue, "language");
if (string.IsNullOrEmpty(request))
exception = new ExceptionReport(exception, ExceptionCode.MissingParameterValue, "request");
if (exception != null)
throw exception;
// Execute an operation depending of the Request
// version attribute is not present in a GetCApabilities request
if (Utils.StrICmp(request, "GetCapabilities"))
return GetCapabilities.RunFromHTTPGet(language);
// TODO handle many versions is possible. Do it ?
if (string.IsNullOrEmpty(version))
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "version");
if (version != Global.WPSVersion)
throw new ExceptionReport("The requested version '" + version + "' is not supported by this WPS server.",
ExceptionCode.VersionNegotiationFailed, "version");
if (Utils.StrICmp(request, "DescribeProcess"))
return DescribeProcess.RunFromHTTPGet(language);
if (Utils.StrICmp(request, "Execute"))
return Execute.RunFromHTTPGet(language);
throw new ExceptionReport("The requested operation '" + request + "' is unknown.",
ExceptionCode.InvalidParameterValue, "request");
}
public override bool Parse(string str, ProcessDescription processDescription)
{
if (String.IsNullOrEmpty(str))
{
return(false);
}
string[] tokens = str.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
ExceptionReport exception = null;
foreach (string param in tokens)
{
string[] kv = param.Split(new char[] { '@' }, StringSplitOptions.RemoveEmptyEntries);
if (kv.Length > 0)
{
OutputData output = processDescription.GetProcessOutputParameter(kv[0]);
if (output != null)
{
OutputData myoutput = output.Clone();
try
{
myoutput.Parse(param);
Outputs.Add(myoutput);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
else
{
exception = new ExceptionReport(exception, "The output "
+ kv[0] + " is not a valid output for the process " + processDescription.Identifier,
ExceptionCode.InvalidParameterValue, "responseDocument");
}
}
}
if (exception != null)
{
throw exception;
}
return(tokens.Length != 0);
}
public ExceptionReport(ExceptionReport exception, ExceptionCode ExceptionCode, string Locator)
: this(exception, "", ExceptionCode, Locator)
{
}
public ExceptionReport(ExceptionReport exception, string Message)
: this(exception, Message, ExceptionCode.NoApplicableCode, "")
{
}
public XmlDocument RunFromHTTPPost()
{
XmlDocument doc = new XmlDocument();
try
{
StreamReader MyStreamReader = new StreamReader(this.Context.Request.InputStream);
doc.LoadXml(MyStreamReader.ReadToEnd());
MyStreamReader.Close();
}
catch (Exception e)
{
throw new ExceptionReport("Error when reading posted data. The xml syntax seems incorrect:\n" + e.Message);
}
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(doc);
XmlNode requestNode = doc.DocumentElement;
string service = Utils.GetXmlAttributesValue(requestNode, "service");
string version = Utils.GetXmlAttributesValue(requestNode, "version");
string language = Utils.GetXmlAttributesValue(requestNode, "language", Global.DefaultLanguage);
ExceptionReport exception = null;
if (service != "WPS")
{
exception = new ExceptionReport("The service requested must be a WPS service.",
ExceptionCode.InvalidParameterValue, "service");
}
if (!Global.SupportedLanguages.Contains(language))
{
exception = new ExceptionReport(exception, "The language '" + language + "' is not supported by this WPS service. " +
"Use one of the followings: " + string.Join(", ", Global.SupportedLanguages.ToArray()),
ExceptionCode.InvalidParameterValue, "language");
}
if (string.IsNullOrEmpty(requestNode.Name))
{
exception = new ExceptionReport(exception, ExceptionCode.MissingParameterValue, "request");
}
if (exception != null)
{
throw exception;
}
if (doc.SelectSingleNode("/wps:GetCapabilities", nsmgr) == requestNode)
{
return(GetCapabilities.RunFromHTTPPost(requestNode, language));
}
if (string.IsNullOrEmpty(version))
{
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "version");
}
else if (version != Global.WPSVersion)
{
throw new ExceptionReport("The requested version '" + version + "' is not supported by this WPS server.",
ExceptionCode.VersionNegotiationFailed, "version");
}
else if (doc.SelectSingleNode("/wps:DescribeProcess", nsmgr) == requestNode)
{
return(DescribeProcess.RunFromHTTPPost(requestNode, language));
}
else if (doc.SelectSingleNode("/wps:Execute", nsmgr) == requestNode)
{
return(Execute.RunFromHTTPPost(requestNode, language));
}
throw new ExceptionReport("The requested operation '" + requestNode.Name + "' is unknown.",
ExceptionCode.InvalidParameterValue, "request");
}
public ExceptionReport(ExceptionReport exception, ExceptionCode ExceptionCode)
: this(exception, "", ExceptionCode, "")
{
}
public ExceptionReport(ExceptionReport exception, string Message)
: this(exception, Message, ExceptionCode.NoApplicableCode, "")
{
}
public ExceptionReport(ExceptionReport exception, string Message, ExceptionCode ExceptionCode, string Locator)
: base(Message, exception)
{
this.ExceptionCode = ExceptionCode;
this.Locator = Locator;
}
public static XmlDocument Run(ProcessDescription processDescription, List <InputData> inputParams, ResponseFormType responseForm)
{
/* error is unreachable because check (via throwing an exception) is done before
* if (processDescription == null)
* throw new ExceptionReport("The ows:Identifier tag of the process can't be found in the xml file. It must be placed under the root 'Execute' node.",
* ExceptionCode.MissingParameterValue);*/
string processId = processDescription.Identifier;
List <InputData> processInputParams = processDescription.GetProcessInputParameters();
List <OutputData> processOutputParams = processDescription.GetProcessOutputParameters();
ExceptionReport exception = null;
ProcessInputParams args = new ProcessInputParams();
// Get and check input parameters
foreach (InputData processInputParam in processInputParams)
{
int occurs = 0;
bool loop = processInputParam.MaxOccurs > 0 || processInputParam.MaxOccurs == -1;
List <InputData> iargs = new List <InputData>();
while (loop)
{
loop = false;
foreach (InputData input in inputParams)
{
if (input.Identifier != processInputParam.Identifier)
{
continue;
}
if (!input.IsValueAllowed())
{
exception = new ExceptionReport(exception, "The parameter "
+ input.Identifier + " has not a valid value!",
ExceptionCode.InvalidParameterValue, input.Identifier);
}
occurs++;
iargs.Add(input.Clone());
inputParams.Remove(input);
loop = true;
break;
}
}
if (occurs < processInputParam.MinOccurs || (occurs > processInputParam.MaxOccurs && processInputParam.MaxOccurs != -1))
{
exception = new ExceptionReport(exception, "The parameter "
+ processInputParam.Identifier + " has " + occurs
+ " occurrences but it should have at least " + processInputParam.MinOccurs
+ " and at most " + processInputParam.MaxOccurs + " occurrences.",
ExceptionCode.InvalidParameterValue, processInputParam.Identifier);
}
// default value for LiteralData
if (occurs == 0 && processInputParam.asLiteralInput() != null &&
!String.IsNullOrEmpty(processInputParam.asLiteralInput().Default))
{
iargs.Add(processInputParam);
}
args.parameters[processInputParam.Identifier] = iargs.ToArray();
}
if (exception != null)
{
throw exception;
}
ProcessReturnValue result = null;
try
{
processDescription = ProcessDescription.GetProcessDescription(processId);
if (responseForm.responseDocument != null && responseForm.responseDocument.status && responseForm.responseDocument.storeExecuteResponse)
{
result = processDescription.CallProcess(args, responseForm, true);
}
else
{
result = processDescription.CallProcess(args, responseForm, false);
}
}
catch (ExceptionReport e)
{
if (responseForm.responseDocument != null && responseForm.responseDocument.status)
{
exception = e;
}
else
{
throw;// new ExceptionReport(e, "Error during process...", ExceptionCode.NoApplicableCode);
}
}
int requestedOutputCount = result.GetOutputIdentifiers().Count;
int returnedOutputCount = result.returnValues.Count;
// Problem during the process (validity check is done before launching the process)!
if (requestedOutputCount != returnedOutputCount)
{
throw new ExceptionReport(String.Format("The process has generated {0} output{1} but {2} {3} requested. Contact the administrator to fix the process issue.",
returnedOutputCount, returnedOutputCount > 1 ? "s" : "",
requestedOutputCount, requestedOutputCount > 1 ? "were" : "was"),
ExceptionCode.NoApplicableCode);
}
if (responseForm.outputDefinition != null)
{
OutputData data = result.returnValues[0];
if (result.fileName == "")
{
result.fileName = processId + "RawDataOuput";
}
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.StatusCode = 200;
HttpContext.Current.Response.Buffer = true;
// not needed because rawdataoutput can only concern a ComplexOutput
//string mimeType = (data is ComplexOutput) ? ((ComplexOutput)data).format.mimeType : "text/plain";
string mimeType = data.asComplexOutput().Format.mimeType;
HttpContext.Current.Response.ContentType = mimeType;
string dispo = true ? "inline" : "attachment";
HttpContext.Current.Response.AddHeader("Content-Disposition", dispo + "; filename=" + System.Uri.EscapeDataString(result.fileName));
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");
byte[] content = data.ToByteArray();
HttpContext.Current.Response.AddHeader("Content-Length", "" + content.Length);
HttpContext.Current.Response.AddHeader("cache-control", "must-revalidate");
HttpContext.Current.Response.OutputStream.Write(content, 0, content.Length);
HttpContext.Current.Response.Flush();
HttpContext.Current.ApplicationInstance.CompleteRequest();
return(new XmlDocument());
}
else
{
s_processStartDate = DateTime.Now.ToString("yyyy_MM_dd_hh_mm_ss_ffff");
s_processArgs = args;
s_responseHeader = Global.XmlHeader + "<wps:ExecuteResponse " + Global.WPSServiceVersion
+ " xml:lang='" + processDescription.Language + "' serviceInstance='"
+ HttpContext.Current.Request.Url.AbsoluteUri.Split('?')[0]
+ "?service=WPS&Request=GetCapabilities' "
+ Global.WPSXmlSchemas + " " + Global.WPSExecuteSchema
/** In case of storeExecuteResponse==true : append the absolute url to the stored response file */
/**/ + (responseForm.responseDocument.storeExecuteResponse ? " statusLocation='"
/**/ + Utils.ResolveUrl(Global.StoredResponsesPath
/**/ + processDescription.processClass + "/response_"
/**/ + s_processStartDate + ".xml' ") : " ")
/************************************************************************************************/
+ ">" + Environment.NewLine
+ "<wps:Process wps:processVersion=\"" + processDescription.Version + "\"><ows:Identifier>" + processDescription.Identifier + "</ows:Identifier><ows:Title>"
+ processDescription.Title + "</ows:Title></wps:Process>"; //TODO: retiré 'wps:'
XmlDocument xmlResponse = FormatResponseMessage(processDescription, s_processArgs, responseForm, result, exception, s_responseHeader);
if (responseForm.responseDocument.storeExecuteResponse)
{
if (!Directory.Exists(Global.StoredResponsesPath + "/" + processDescription.processClass))
{
Directory.CreateDirectory(Global.StoredResponsesPath + "/" + processDescription.processClass);
}
xmlResponse.Save(Global.StoredResponsesPath + processDescription.processClass + "/response_" + s_processStartDate + ".xml");
}
HttpContext.Current.Response.StatusCode = 200;
return(xmlResponse);
}
}
private static XmlDocument FormatResponseMessage(ProcessDescription processDescription, ProcessInputParams args, ResponseFormType responseForm, ProcessReturnValue result, ExceptionReport exception, string xmlHeader = "")
{
// Format the response message
StringBuilder retString = new StringBuilder();
retString.Append(xmlHeader);
/*
if (responseForm.responseDocument.status)
{*/
retString.Append("<wps:Status creationTime=\"" + System.DateTime.Now.ToString("s") + "\">");
if (result.status == ProcessState.Succeeded)
{
retString.Append("<wps:ProcessSucceeded>" + (result.statusMessage != "" ? result.statusMessage : "Process completed successfully.") + "</wps:ProcessSucceeded>"); //TODO: retiré 'wps:'
}
else if (result.status == ProcessState.Accepted)
{
retString.Append("<wps:ProcessAccepted>" + (result.statusMessage != "" ? result.statusMessage : "Process has been accepted and is pending execution.") + "</wps:ProcessAccepted>"); //TODO: retiré 'wps:'
}
else if (result.status == ProcessState.Paused)
{
retString.Append("<wps:ProcessPaused percentCompleted=\""+result.percentageCompleted+"\" >" + (result.statusMessage != "" ? result.statusMessage : "Process is paused.") + "</wps:ProcessPaused>");
}
else if (result.status == ProcessState.Started)
{
retString.Append("<wps:ProcessStarted percentCompleted=\""+result.percentageCompleted+"\" >" + (result.statusMessage != "" ? result.statusMessage : "Process is running.") + "</wps:ProcessStarted>");
}
else if (result.status == ProcessState.Failed)
{
retString.Append("<wps:ProcessFailed>" + (exception != null ? exception.GetReport().InnerText + " - " + result.statusMessage
: new ExceptionReport("Failed to execute WPS process : "+result.statusMessage, ExceptionCode.NoApplicableCode).GetReport().InnerText)
+ "</wps:ProcessFailed>");
}
retString.Append("</wps:Status>");
// }
if (responseForm.responseDocument.lineage)
{
retString.Append("<wps:DataInputs>");
foreach (KeyValuePair<string, InputData[]> ent in args.parameters)
foreach (InputData processInputParam in ent.Value)
retString.Append(processInputParam.GetXmlValue());
retString.Append("</wps:DataInputs>");
retString.Append("<wps:OutputDefinitions>");
// TODO do not retrieve output from return values (may not be the same as request)
//foreach (OutputData processOutputParam in result.returnValues)
foreach (OutputData processOutputParam in responseForm.responseDocument.Outputs)
retString.Append(processOutputParam.GetXmlDescription());
retString.Append("</wps:OutputDefinitions>");
}
if (result.returnValues.Count > 0)
{
retString.Append("<wps:ProcessOutputs>");
foreach (OutputData outputData in result.returnValues)
retString.Append(outputData.GetXmlValue());
retString.Append("</wps:ProcessOutputs>");
}
retString.Append("</wps:ExecuteResponse>");
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(retString.ToString());
return doc;
}
catch (Exception e)
{
throw new ExceptionReport("The service execution has encountered an error while formatting the result stream. Check the parameters values.\n" + e.ToString());
}
}
public static XmlDocument RunFromHTTPPost(XmlNode requestNode, string language)
{
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(requestNode.OwnerDocument);
XmlNode processNode = requestNode.SelectSingleNode("ows:Identifier", nsmgr);
if (processNode == null || string.IsNullOrEmpty(processNode.InnerText))
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "ows:Identifier");
string processId = processNode.InnerText;
//List<InputData> processInputParams = null;
//List<OutputData> processOutputParams = null;
ProcessDescription processDescription = null;
processDescription = ProcessDescription.GetProcessDescription(processId);
//processInputParams = processDescription.GetProcessInputParameters();
//processOutputParams = processDescription.GetProcessOutputParameters();
List<InputData> inputParams = new List<InputData>();
ExceptionReport exception = null;
XmlNodeList inputs = requestNode.SelectNodes("wps:DataInputs/wps:Input", nsmgr);
foreach (XmlNode node in inputs)
{
XmlNode nodeid = node.SelectSingleNode("ows:Identifier", nsmgr);
if (nodeid == null)
{
exception = new ExceptionReport(exception, "The parameter <ows:Identifier> is missing!",
ExceptionCode.MissingParameterValue, "ows:Identifier");
continue;
}
InputData input = processDescription.GetProcessInputParameter(nodeid.InnerText);
if (input == null)
{
exception = new ExceptionReport(exception, "The parameter " + nodeid.InnerText +
" is not a valid parameter for this execute request!",
ExceptionCode.InvalidParameterValue, nodeid.InnerText);
continue;
}
InputData myinput = input.Clone();
try
{
myinput.ParseValue(node);
inputParams.Add(myinput);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
if (exception != null)
throw exception;
ResponseFormType responseForm = new ResponseFormType("wps:ResponseForm");
XmlNode responseFormNode = requestNode.SelectSingleNode("wps:ResponseForm", nsmgr);
responseForm.Parse(responseFormNode, processDescription);
return Execute.Run(processDescription, inputParams, responseForm);
}
public static XmlDocument RunFromHTTPGet(string language)
{
ResponseFormType responseForm = new ResponseFormType("wps:ResponseForm");
string processId = Utils.GetParameter("Identifier");
if (string.IsNullOrEmpty(processId))
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "Identifier");
List<InputData> processInputParams = null;
List<OutputData> processOutputParams = null;
ProcessDescription processDescription = null;
processDescription = ProcessDescription.GetProcessDescription(processId);
processInputParams = processDescription.GetProcessInputParameters();
processOutputParams = processDescription.GetProcessOutputParameters();
List<InputData> inputParams = new List<InputData>();
//string p = Utils.DecodeURI(Utils.GetParameter("DataInputs"));
string p = Utils.GetParameter("DataInputs");
ExceptionReport exception = null;
if (!String.IsNullOrEmpty(p))
{
string[] tokens = p.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string param in tokens)
{
string[] kv = param.Split(new char[] { '=' }, 2, StringSplitOptions.RemoveEmptyEntries);
if (kv.Length == 2)
{
InputData input = processDescription.GetProcessInputParameter(kv[0]);
if (input != null)
{
InputData myinput = input.Clone();
try
{
myinput.ParseValue(kv[1]);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
inputParams.Add(myinput);
}
else
{
exception = new ExceptionReport(exception, "The parameter " + kv[0] +
" is not a valid parameter for this execute request!", ExceptionCode.InvalidParameterValue, kv[0]);
}
}
}
}
if (exception != null)
throw exception;
//List<string> outputIds = new List<string>();
responseForm.Parse(processDescription);
return Run(processDescription, inputParams, responseForm);
}
public override bool Parse(XmlNode node, ProcessDescription processDescription)
{
if (node == null)
{
return(false);
}
// Create an XmlNamespaceManager for resolving namespaces.
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(node.OwnerDocument);
lineage = Boolean.Parse(Utils.GetXmlAttributesValue(node, "lineage", "false"));
status = Boolean.Parse(Utils.GetXmlAttributesValue(node, "status", "false"));
storeExecuteResponse = Boolean.Parse(Utils.GetXmlAttributesValue(node, "storeExecuteResponse", "false"));
XmlNodeList outputs = node.SelectNodes("wps:Output", nsmgr);
if (outputs.Count == 0)
{
throw new ExceptionReport(String.Format("No 'wps:Output' node was found inside the 'wps:ResponseDocument' node for the process '{0}'. Please check your request.",
processDescription.Identifier),
ExceptionCode.MissingParameterValue, processDescription.Identifier);
}
ExceptionReport exception = null;
foreach (XmlNode output in outputs)
{
XmlNode id = output.SelectSingleNode("ows:Identifier", nsmgr);
XmlNode abst = output.SelectSingleNode("ows:Abstract", nsmgr);
XmlNode title = output.SelectSingleNode("ows:Title", nsmgr);
string identifier = id.InnerText;
string titleStr = title != null ? title.InnerText : "";
string abstStr = abst != null ? abst.InnerText : "";
OutputData processOutput = processDescription.GetProcessOutputParameter(identifier);
if (processOutput != null)
{
OutputData myoutput = processOutput.Clone();
myoutput.Title = titleStr;
myoutput.Abstract = abstStr;
myoutput.asReference = Boolean.Parse(Utils.GetXmlAttributesValue(output, "asReference", "false"));
if (myoutput.asReference && !processDescription.storeSupported)
{
exception = new ExceptionReport(exception,
String.Format("The storage of response is not supported for the process {0} but is requested for the output {1}.",
processDescription.Identifier, identifier),
ExceptionCode.StorageNotSupported);
}
try
{
myoutput.Parse(output);
Outputs.Add(myoutput);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
else
{
exception = new ExceptionReport(exception, String.Format("The output {0} is not a valid output for the process {1}",
identifier, processDescription.Identifier), ExceptionCode.InvalidParameterValue, "responseDocument");
}
}
if (exception != null)
{
throw exception;
}
return(true);
}
public XmlDocument RunFromHTTPPost()
{
XmlDocument doc = new XmlDocument();
try
{
StreamReader MyStreamReader = new StreamReader(this.Context.Request.InputStream);
doc.LoadXml(MyStreamReader.ReadToEnd());
MyStreamReader.Close();
}
catch (Exception e)
{
throw new ExceptionReport("Error when reading posted data. The xml syntax seems incorrect:\n" + e.Message);
}
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(doc);
XmlNode requestNode = doc.DocumentElement;
string service = Utils.GetXmlAttributesValue(requestNode, "service");
string version = Utils.GetXmlAttributesValue(requestNode, "version");
string language = Utils.GetXmlAttributesValue(requestNode, "language", Global.DefaultLanguage);
ExceptionReport exception = null;
if (service != "WPS")
exception = new ExceptionReport("The service requested must be a WPS service.",
ExceptionCode.InvalidParameterValue, "service");
if (!Global.SupportedLanguages.Contains(language))
exception = new ExceptionReport(exception, "The language '" + language + "' is not supported by this WPS service. " +
"Use one of the followings: " + string.Join(", ", Global.SupportedLanguages.ToArray()),
ExceptionCode.InvalidParameterValue, "language");
if (string.IsNullOrEmpty(requestNode.Name))
exception = new ExceptionReport(exception, ExceptionCode.MissingParameterValue, "request");
if (exception != null)
throw exception;
if (doc.SelectSingleNode("/wps:GetCapabilities", nsmgr) == requestNode)
return GetCapabilities.RunFromHTTPPost(requestNode, language);
if (string.IsNullOrEmpty(version))
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "version");
else if (version != Global.WPSVersion)
throw new ExceptionReport("The requested version '" + version + "' is not supported by this WPS server.",
ExceptionCode.VersionNegotiationFailed, "version");
else if (doc.SelectSingleNode("/wps:DescribeProcess", nsmgr) == requestNode)
return DescribeProcess.RunFromHTTPPost(requestNode, language);
else if (doc.SelectSingleNode("/wps:Execute", nsmgr) == requestNode)
return Execute.RunFromHTTPPost(requestNode, language);
throw new ExceptionReport("The requested operation '" + requestNode.Name + "' is unknown.",
ExceptionCode.InvalidParameterValue, "request");
}
public ExceptionReport(ExceptionReport exception, ExceptionCode ExceptionCode)
: this(exception, "", ExceptionCode, "")
{
}
private static XmlDocument FormatResponseMessage(ProcessDescription processDescription, ProcessInputParams args, ResponseFormType responseForm, ProcessReturnValue result, ExceptionReport exception, string xmlHeader = "")
{
// Format the response message
StringBuilder retString = new StringBuilder();
retString.Append(xmlHeader);
/*
* if (responseForm.responseDocument.status)
* {*/
retString.Append("<wps:Status creationTime=\"" + System.DateTime.Now.ToString("s") + "\">");
if (result.status == ProcessState.Succeeded)
{
retString.Append("<wps:ProcessSucceeded>" + (result.statusMessage != "" ? result.statusMessage : "Process completed successfully.") + "</wps:ProcessSucceeded>"); //TODO: retiré 'wps:'
}
else if (result.status == ProcessState.Accepted)
{
retString.Append("<wps:ProcessAccepted>" + (result.statusMessage != "" ? result.statusMessage : "Process has been accepted and is pending execution.") + "</wps:ProcessAccepted>"); //TODO: retiré 'wps:'
}
else if (result.status == ProcessState.Paused)
{
retString.Append("<wps:ProcessPaused percentCompleted=\"" + result.percentageCompleted + "\" >" + (result.statusMessage != "" ? result.statusMessage : "Process is paused.") + "</wps:ProcessPaused>");
}
else if (result.status == ProcessState.Started)
{
retString.Append("<wps:ProcessStarted percentCompleted=\"" + result.percentageCompleted + "\" >" + (result.statusMessage != "" ? result.statusMessage : "Process is running.") + "</wps:ProcessStarted>");
}
else if (result.status == ProcessState.Failed)
{
retString.Append("<wps:ProcessFailed>" + (exception != null ? exception.GetReport().InnerText + " - " + result.statusMessage
: new ExceptionReport("Failed to execute WPS process : " + result.statusMessage, ExceptionCode.NoApplicableCode).GetReport().InnerText)
+ "</wps:ProcessFailed>");
}
retString.Append("</wps:Status>");
// }
if (responseForm.responseDocument.lineage)
{
retString.Append("<wps:DataInputs>");
foreach (KeyValuePair <string, InputData[]> ent in args.parameters)
{
foreach (InputData processInputParam in ent.Value)
{
retString.Append(processInputParam.GetXmlValue());
}
}
retString.Append("</wps:DataInputs>");
retString.Append("<wps:OutputDefinitions>");
// TODO do not retrieve output from return values (may not be the same as request)
//foreach (OutputData processOutputParam in result.returnValues)
foreach (OutputData processOutputParam in responseForm.responseDocument.Outputs)
{
retString.Append(processOutputParam.GetXmlDescription());
}
retString.Append("</wps:OutputDefinitions>");
}
if (result.returnValues.Count > 0)
{
retString.Append("<wps:ProcessOutputs>");
foreach (OutputData outputData in result.returnValues)
{
retString.Append(outputData.GetXmlValue());
}
retString.Append("</wps:ProcessOutputs>");
}
retString.Append("</wps:ExecuteResponse>");
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(retString.ToString());
return(doc);
}
catch (Exception e)
{
throw new ExceptionReport("The service execution has encountered an error while formatting the result stream. Check the parameters values.\n" + e.ToString());
}
}
public static XmlDocument Run(ProcessDescription processDescription, List<InputData> inputParams, ResponseFormType responseForm)
{
/* error is unreachable because check (via throwing an exception) is done before
if (processDescription == null)
throw new ExceptionReport("The ows:Identifier tag of the process can't be found in the xml file. It must be placed under the root 'Execute' node.",
ExceptionCode.MissingParameterValue);*/
string processId = processDescription.Identifier;
List<InputData> processInputParams = processDescription.GetProcessInputParameters();
List<OutputData> processOutputParams = processDescription.GetProcessOutputParameters();
ExceptionReport exception = null;
ProcessInputParams args = new ProcessInputParams();
// Get and check input parameters
foreach (InputData processInputParam in processInputParams)
{
int occurs = 0;
bool loop = processInputParam.MaxOccurs > 0 || processInputParam.MaxOccurs == -1;
List<InputData> iargs = new List<InputData>();
while (loop)
{
loop = false;
foreach (InputData input in inputParams)
{
if (input.Identifier != processInputParam.Identifier) continue;
if (!input.IsValueAllowed())
exception = new ExceptionReport(exception, "The parameter "
+ input.Identifier + " has not a valid value!",
ExceptionCode.InvalidParameterValue, input.Identifier);
occurs++;
iargs.Add(input.Clone());
inputParams.Remove(input);
loop = true;
break;
}
}
if (occurs < processInputParam.MinOccurs || (occurs > processInputParam.MaxOccurs && processInputParam.MaxOccurs != -1))
exception = new ExceptionReport(exception, "The parameter "
+ processInputParam.Identifier + " has " + occurs
+ " occurrences but it should have at least " + processInputParam.MinOccurs
+ " and at most " + processInputParam.MaxOccurs + " occurrences.",
ExceptionCode.InvalidParameterValue, processInputParam.Identifier);
// default value for LiteralData
if (occurs == 0 && processInputParam.asLiteralInput() != null
&& !String.IsNullOrEmpty(processInputParam.asLiteralInput().Default))
iargs.Add(processInputParam);
args.parameters[processInputParam.Identifier] = iargs.ToArray();
}
if (exception != null)
throw exception;
ProcessReturnValue result = null;
try
{
processDescription = ProcessDescription.GetProcessDescription(processId);
if (responseForm.responseDocument != null && responseForm.responseDocument.status && responseForm.responseDocument.storeExecuteResponse)
{
result = processDescription.CallProcess(args, responseForm, true);
}
else
result = processDescription.CallProcess(args, responseForm, false);
}
catch (ExceptionReport e)
{
if (responseForm.responseDocument != null && responseForm.responseDocument.status)
exception = e;
else
throw;// new ExceptionReport(e, "Error during process...", ExceptionCode.NoApplicableCode);
}
int requestedOutputCount = result.GetOutputIdentifiers().Count;
int returnedOutputCount = result.returnValues.Count;
// Problem during the process (validity check is done before launching the process)!
if (requestedOutputCount != returnedOutputCount)
throw new ExceptionReport(String.Format("The process has generated {0} output{1} but {2} {3} requested. Contact the administrator to fix the process issue.",
returnedOutputCount, returnedOutputCount > 1 ? "s" : "",
requestedOutputCount, requestedOutputCount > 1 ? "were" : "was"),
ExceptionCode.NoApplicableCode);
if (responseForm.outputDefinition != null)
{
OutputData data = result.returnValues[0];
if (result.fileName == "") result.fileName = processId + "RawDataOuput";
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.StatusCode = 200;
HttpContext.Current.Response.Buffer = true;
// not needed because rawdataoutput can only concern a ComplexOutput
//string mimeType = (data is ComplexOutput) ? ((ComplexOutput)data).format.mimeType : "text/plain";
string mimeType = data.asComplexOutput().Format.mimeType;
HttpContext.Current.Response.ContentType = mimeType;
string dispo = true ? "inline" : "attachment";
HttpContext.Current.Response.AddHeader("Content-Disposition", dispo + "; filename=" + System.Uri.EscapeDataString(result.fileName));
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");
byte[] content = data.ToByteArray();
HttpContext.Current.Response.AddHeader("Content-Length", "" + content.Length);
HttpContext.Current.Response.AddHeader("cache-control", "must-revalidate");
HttpContext.Current.Response.OutputStream.Write(content, 0, content.Length);
HttpContext.Current.Response.Flush();
HttpContext.Current.ApplicationInstance.CompleteRequest();
return new XmlDocument();
}
else
{
s_processStartDate = DateTime.Now.ToString("yyyy_MM_dd_hh_mm_ss_ffff");
s_processArgs = args;
s_responseHeader = Global.XmlHeader + "<wps:ExecuteResponse " + Global.WPSServiceVersion
+ " xml:lang='" + processDescription.Language + "' serviceInstance='"
+ HttpContext.Current.Request.Url.AbsoluteUri.Split('?')[0]
+ "?service=WPS&Request=GetCapabilities' "
+ Global.WPSXmlSchemas + " " + Global.WPSExecuteSchema
/** In case of storeExecuteResponse==true : append the absolute url to the stored response file */
/**/ + (responseForm.responseDocument.storeExecuteResponse ? " statusLocation='"
/**/ + Utils.ResolveUrl(Global.StoredResponsesPath
/**/ + processDescription.processClass + "/response_"
/**/ + s_processStartDate + ".xml' ") : " ")
/************************************************************************************************/
+ ">" + Environment.NewLine
+ "<wps:Process wps:processVersion=\""+processDescription.Version+"\"><ows:Identifier>" + processDescription.Identifier + "</ows:Identifier><ows:Title>"
+ processDescription.Title + "</ows:Title></wps:Process>"; //TODO: retiré 'wps:'
XmlDocument xmlResponse = FormatResponseMessage(processDescription, s_processArgs, responseForm, result, exception, s_responseHeader);
if (responseForm.responseDocument.storeExecuteResponse)
{
if (!Directory.Exists(Global.StoredResponsesPath + "/" + processDescription.processClass))
Directory.CreateDirectory(Global.StoredResponsesPath + "/" + processDescription.processClass);
xmlResponse.Save(Global.StoredResponsesPath + processDescription.processClass + "/response_" + s_processStartDate + ".xml");
}
HttpContext.Current.Response.StatusCode = 200;
return xmlResponse;
}
}
public XmlDocument RunFromHTTPGet()
{
string request = Utils.GetParameter("request");
string service = Utils.GetParameter("service");
string version = Utils.GetParameter("version");
string language = Utils.GetParameter("language", Global.DefaultLanguage);
ExceptionReport exception = null;
if (service != "WPS")
{
exception = new ExceptionReport(exception, "The service requested must be a WPS service.",
ExceptionCode.InvalidParameterValue, "service");
}
if (!Global.SupportedLanguages.Contains(language))
{
exception = new ExceptionReport(exception, "The language '" + language + "' is not supported by this WPS service. " +
"Use one of the followings: " + string.Join(", ", Global.SupportedLanguages.ToArray()),
ExceptionCode.InvalidParameterValue, "language");
}
if (string.IsNullOrEmpty(request))
{
exception = new ExceptionReport(exception, ExceptionCode.MissingParameterValue, "request");
}
if (exception != null)
{
throw exception;
}
// Execute an operation depending of the Request
// version attribute is not present in a GetCApabilities request
if (Utils.StrICmp(request, "GetCapabilities"))
{
return(GetCapabilities.RunFromHTTPGet(language));
}
// TODO handle many versions is possible. Do it ?
if (string.IsNullOrEmpty(version))
{
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "version");
}
if (version != Global.WPSVersion)
{
throw new ExceptionReport("The requested version '" + version + "' is not supported by this WPS server.",
ExceptionCode.VersionNegotiationFailed, "version");
}
if (Utils.StrICmp(request, "DescribeProcess"))
{
return(DescribeProcess.RunFromHTTPGet(language));
}
if (Utils.StrICmp(request, "Execute"))
{
return(Execute.RunFromHTTPGet(language));
}
throw new ExceptionReport("The requested operation '" + request + "' is unknown.",
ExceptionCode.InvalidParameterValue, "request");
}
public static XmlDocument RunFromHTTPGet(string language)
{
ResponseFormType responseForm = new ResponseFormType("wps:ResponseForm");
string processId = Utils.GetParameter("Identifier");
if (string.IsNullOrEmpty(processId))
{
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "Identifier");
}
List <InputData> processInputParams = null;
List <OutputData> processOutputParams = null;
ProcessDescription processDescription = null;
processDescription = ProcessDescription.GetProcessDescription(processId);
processInputParams = processDescription.GetProcessInputParameters();
processOutputParams = processDescription.GetProcessOutputParameters();
List <InputData> inputParams = new List <InputData>();
//string p = Utils.DecodeURI(Utils.GetParameter("DataInputs"));
string p = Utils.GetParameter("DataInputs");
ExceptionReport exception = null;
if (!String.IsNullOrEmpty(p))
{
string[] tokens = p.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string param in tokens)
{
string[] kv = param.Split(new char[] { '=' }, 2, StringSplitOptions.RemoveEmptyEntries);
if (kv.Length == 2)
{
InputData input = processDescription.GetProcessInputParameter(kv[0]);
if (input != null)
{
InputData myinput = input.Clone();
try
{
myinput.ParseValue(kv[1]);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
inputParams.Add(myinput);
}
else
{
exception = new ExceptionReport(exception, "The parameter " + kv[0] +
" is not a valid parameter for this execute request!", ExceptionCode.InvalidParameterValue, kv[0]);
}
}
}
}
if (exception != null)
{
throw exception;
}
//List<string> outputIds = new List<string>();
responseForm.Parse(processDescription);
return(Run(processDescription, inputParams, responseForm));
}
public override bool Parse(XmlNode node, ProcessDescription processDescription)
{
if (node == null) return false;
// Create an XmlNamespaceManager for resolving namespaces.
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(node.OwnerDocument);
lineage = Boolean.Parse(Utils.GetXmlAttributesValue(node, "lineage", "false"));
status = Boolean.Parse(Utils.GetXmlAttributesValue(node, "status", "false"));
storeExecuteResponse = Boolean.Parse(Utils.GetXmlAttributesValue(node, "storeExecuteResponse", "false"));
XmlNodeList outputs = node.SelectNodes("wps:Output", nsmgr);
if (outputs.Count == 0)
throw new ExceptionReport(String.Format("No 'wps:Output' node was found inside the 'wps:ResponseDocument' node for the process '{0}'. Please check your request.",
processDescription.Identifier),
ExceptionCode.MissingParameterValue, processDescription.Identifier);
ExceptionReport exception = null;
foreach (XmlNode output in outputs)
{
XmlNode id = output.SelectSingleNode("ows:Identifier", nsmgr);
XmlNode abst = output.SelectSingleNode("ows:Abstract", nsmgr);
XmlNode title = output.SelectSingleNode("ows:Title", nsmgr);
string identifier = id.InnerText;
string titleStr = title != null ? title.InnerText : "";
string abstStr = abst != null ? abst.InnerText : "";
OutputData processOutput = processDescription.GetProcessOutputParameter(identifier);
if (processOutput != null)
{
OutputData myoutput = processOutput.Clone();
myoutput.Title = titleStr;
myoutput.Abstract = abstStr;
myoutput.asReference = Boolean.Parse(Utils.GetXmlAttributesValue(output, "asReference", "false"));
if (myoutput.asReference && !processDescription.storeSupported)
exception = new ExceptionReport(exception,
String.Format("The storage of response is not supported for the process {0} but is requested for the output {1}.",
processDescription.Identifier, identifier),
ExceptionCode.StorageNotSupported);
try
{
myoutput.Parse(output);
Outputs.Add(myoutput);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
else
{
exception = new ExceptionReport(exception, String.Format("The output {0} is not a valid output for the process {1}",
identifier, processDescription.Identifier), ExceptionCode.InvalidParameterValue, "responseDocument");
}
}
if (exception != null) throw exception;
return true;
}
public static XmlDocument RunFromHTTPPost(XmlNode requestNode, string language)
{
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(requestNode.OwnerDocument);
XmlNode processNode = requestNode.SelectSingleNode("ows:Identifier", nsmgr);
if (processNode == null || string.IsNullOrEmpty(processNode.InnerText))
{
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "ows:Identifier");
}
string processId = processNode.InnerText;
//List<InputData> processInputParams = null;
//List<OutputData> processOutputParams = null;
ProcessDescription processDescription = null;
processDescription = ProcessDescription.GetProcessDescription(processId);
//processInputParams = processDescription.GetProcessInputParameters();
//processOutputParams = processDescription.GetProcessOutputParameters();
List <InputData> inputParams = new List <InputData>();
ExceptionReport exception = null;
XmlNodeList inputs = requestNode.SelectNodes("wps:DataInputs/wps:Input", nsmgr);
foreach (XmlNode node in inputs)
{
XmlNode nodeid = node.SelectSingleNode("ows:Identifier", nsmgr);
if (nodeid == null)
{
exception = new ExceptionReport(exception, "The parameter <ows:Identifier> is missing!",
ExceptionCode.MissingParameterValue, "ows:Identifier");
continue;
}
InputData input = processDescription.GetProcessInputParameter(nodeid.InnerText);
if (input == null)
{
exception = new ExceptionReport(exception, "The parameter " + nodeid.InnerText +
" is not a valid parameter for this execute request!",
ExceptionCode.InvalidParameterValue, nodeid.InnerText);
continue;
}
InputData myinput = input.Clone();
try
{
myinput.ParseValue(node);
inputParams.Add(myinput);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
if (exception != null)
{
throw exception;
}
ResponseFormType responseForm = new ResponseFormType("wps:ResponseForm");
XmlNode responseFormNode = requestNode.SelectSingleNode("wps:ResponseForm", nsmgr);
responseForm.Parse(responseFormNode, processDescription);
return(Execute.Run(processDescription, inputParams, responseForm));
}
public override bool Parse(string str, ProcessDescription processDescription)
{
if (String.IsNullOrEmpty(str)) return false;
string[] tokens = str.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
ExceptionReport exception = null;
foreach (string param in tokens)
{
string[] kv = param.Split(new char[] { '@' }, StringSplitOptions.RemoveEmptyEntries);
if (kv.Length > 0)
{
OutputData output = processDescription.GetProcessOutputParameter(kv[0]);
if (output != null)
{
OutputData myoutput = output.Clone();
try
{
myoutput.Parse(param);
Outputs.Add(myoutput);
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
else
{
exception = new ExceptionReport(exception, "The output "
+ kv[0] + " is not a valid output for the process " + processDescription.Identifier,
ExceptionCode.InvalidParameterValue, "responseDocument");
}
}
}
if (exception != null) throw exception;
return tokens.Length != 0;
}
public ExceptionReport(ExceptionReport exception, string Message, ExceptionCode ExceptionCode)
: base(Message, exception)
{
}
public ExceptionReport(ExceptionReport exception, ExceptionReport innerException)
: this(innerException, exception.Message, exception.ExceptionCode, exception.Locator)
{
}
public ExceptionReport(ExceptionReport exception, ExceptionCode ExceptionCode, string Locator)
: this(exception, "", ExceptionCode, Locator)
{
}
public ExceptionReport(ExceptionReport exception, string Message, ExceptionCode ExceptionCode, string Locator)
: base(Message, exception)
{
this.ExceptionCode = ExceptionCode;
this.Locator = Locator;
}
public ExceptionReport(ExceptionReport exception, ExceptionReport innerException)
: this(innerException, exception.Message, exception.ExceptionCode, exception.Locator)
{
}
public ExceptionReport(ExceptionReport exception, string Message, ExceptionCode ExceptionCode)
: base(Message, exception)
{
}
