public static string ToLocalSchemas(this string xml, string xsdFolder, QtiVersion newVersion)
{
var itemXsdLocation = GetBaseSchemaLocation(QtiResourceType.AssessmentItem, newVersion);
var manifestXsdLocation = GetBaseSchemaLocation(QtiResourceType.Manifest, newVersion);
xml = xml.Replace($"{itemXsdLocation}", $"{xsdFolder}/{Path.GetFileName(itemXsdLocation)}");
xml = xml.Replace($"{manifestXsdLocation}", $"{xsdFolder}/{Path.GetFileName(manifestXsdLocation)}");
return(xml);
}
protected BaseConverter(DirectoryInfo extractedPackageLocation,
QtiVersion currentVersion,
Func <string, string> beforeItem,
Func <string, string> beforeTest,
Func <string, string> beforeManifest)
{
Version = currentVersion;
_packageFolder = extractedPackageLocation;
Init(beforeItem, beforeTest, beforeManifest);
}
public static bool Validate(this XDocument xDoc, QtiVersion version)
{
var result = true;
// Set the validation settings.
using var sr = new StringReader(xDoc.ToString());
var reader = version == QtiVersion.Qti22
?
XmlReader.Create(sr, XsdHelper.GetXmlReaderSettingsQti22(ValidationEventHandler))
: version == QtiVersion.Qti30
? XmlReader.Create(sr, XsdHelper.GetXmlReaderSettingsQti30(ValidationEventHandler))
:
XmlReader.Create(sr, XsdHelper.GetXmlReaderSettingsQti21(ValidationEventHandler));
void ValidationEventHandler(object sender, ValidationEventArgs e)
{
result = false;
var orgColor = Console.ForegroundColor;
var type = e.Severity;
if (type == XmlSeverityType.Warning)
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(e.Message);
Console.ForegroundColor = orgColor;
}
if (type == XmlSeverityType.Error)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(e.Message);
Console.ForegroundColor = orgColor;
}
}
// Parse the file.
while (reader.Read())
{
;
}
return(result);
}
public static void AddLocalSchemasToPackage(this Manifest manifest, string packageLocation, QtiVersion newVersion)
{
var controlResources = manifest
.FindElementsByElementAndAttributeStartValue("resource", "type", "controlfile/xmlv1p0")
.FirstOrDefault();
if (controlResources == null)
{
var resources = manifest.FindElementByName("resources");
controlResources = XElement.Parse("<resource identifier=\"I_00001_CF\" type=\"controlfile/xmlv1p0\"></resource>");
resources?.Add(controlResources);
}
var xsdFolder = Path.Combine(packageLocation, "controlxsds");
if (!Directory.Exists(xsdFolder))
{
Directory.CreateDirectory(xsdFolder);
}
var applicationPath = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
var version = newVersion == QtiVersion.Qti21 ? "21" : newVersion == QtiVersion.Qti22 ? "22" : "30";
var schemaLocation = $"Xsds/schema_qti{version}.zip";
ZipFile.ExtractToDirectory(Path.Combine(applicationPath, schemaLocation), xsdFolder, Encoding.Default, true);
Directory.GetFiles(xsdFolder, "*.xsd").ToList().ForEach(xsdFile =>
{
controlResources?.Add(XElement.Parse($"<file href=\"controlxsds/{Path.GetFileName(xsdFile)}\" />"));
});
}
public static string ReplaceSchemas(this string xml, QtiResourceType resourceType, QtiVersion newVersion, QtiVersion oldVersion, bool localSchema)
{
var tagName = resourceType == QtiResourceType.AssessmentItem ? "assessmentItem" :
resourceType == QtiResourceType.AssessmentTest ? "assessmentTest" :
"manifest";
var baseScheme = GetBaseSchema(resourceType, newVersion);
var baseSchemeLocation = GetBaseSchemaLocation(resourceType, newVersion);
var qtiParentTag = Regex.Match(xml, $"<{tagName}(.*?)>").Value;
var qtiParentOrg = qtiParentTag;
var schemaPrefix = Regex.Match(qtiParentTag, " (.*?)schemaLocation")
.Value.Replace(":schemaLocation", "").Trim();
schemaPrefix = schemaPrefix.Substring(schemaPrefix.LastIndexOf(" ", StringComparison.Ordinal), schemaPrefix.Length - schemaPrefix.LastIndexOf(" ", StringComparison.Ordinal)).Trim();
var schemaLocations = Regex.Match(qtiParentTag, @$ "{schemaPrefix}:schemaLocation=" "(.*?)" "").Value;
var extensionSchemas = RemoveSchemaFromLocation(schemaLocations, GetBaseSchema(resourceType, oldVersion));
if (resourceType == QtiResourceType.Manifest)
{
extensionSchemas = RemoveSchemaFromLocation(extensionSchemas, GetBaseSchema(QtiResourceType.AssessmentItem, oldVersion));
extensionSchemas = extensionSchemas +
$" {GetBaseSchema(QtiResourceType.AssessmentItem, newVersion)} {GetBaseSchemaLocation(QtiResourceType.AssessmentItem, newVersion)}";
}
qtiParentTag = Regex.Replace(qtiParentTag, @$ "{schemaPrefix}:schemaLocation=" "(.*?)" "", "");
qtiParentTag = Regex.Replace(qtiParentTag, @$ "xmlns:{schemaPrefix}=" "(.*?)" "", "");
qtiParentTag = Regex.Replace(qtiParentTag, @$ "xmlns:xsi=" "(.*?)" "", "");
qtiParentTag = Regex.Replace(qtiParentTag, @"xmlns=""(.*?)""", "");
if (localSchema)
{
var prefix = resourceType == QtiResourceType.Manifest ? "/" : "../";
baseSchemeLocation = $"{prefix}controlxsds/{Path.GetFileName(baseSchemeLocation)}";
}
var schemaLocation = $"xsi:schemaLocation=\"{baseScheme} {baseSchemeLocation} ";
qtiParentTag = qtiParentTag.Replace($"{tagName} ",
$@"{tagName} xmlns=""{baseScheme}"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" " +
schemaLocation + " " + extensionSchemas + @""" "
);
xml = xml.Replace(qtiParentOrg, qtiParentTag);
if (schemaPrefix != "xsi")
{
xml = xml.Replace($":{schemaPrefix}", ":xsi");
xml = xml.Replace($"{schemaPrefix}:", "xsi:");
}
return(xml);
}
public static string GetBaseSchemaLocation(QtiResourceType resourceType, QtiVersion version)
=> XsdHelper.BaseSchemaLocations[$"{resourceType.ToString()}-{version.ToString()}"];
private static string GetBaseSchema(QtiResourceType resourceType, QtiVersion version)
=> XsdHelper.BaseSchemas[$"{resourceType}-{version}"];
public Manifest(DirectoryInfo packageLocation, QtiVersion version, Func <string, string> beforeManifest) :
base(Parse(beforeManifest(File.ReadAllText(Path.Combine(packageLocation.FullName, "imsmanifest.xml")))))
{
_packageLocation = packageLocation;
_version = version;
}
protected BaseConverter(DirectoryInfo extractedPackageLocation, QtiVersion currentVersion) : this(extractedPackageLocation, currentVersion, x => x, x => x, x => x)
{
}
public Qti30Converter(DirectoryInfo extractedPackageLocation, bool localSchema, QtiVersion fromVersion) : base(
extractedPackageLocation, xml => xml
.ReplaceRunsTabsAndLineBraks()
.ReplaceSchemas(QtiResourceType.AssessmentItem, QtiVersion.Qti30, fromVersion, localSchema),
testXml => testXml
.ReplaceRunsTabsAndLineBraks()
.ReplaceSchemas(QtiResourceType.AssessmentTest, QtiVersion.Qti30, fromVersion, localSchema),
manifestXml => manifestXml
.ReplaceRunsTabsAndLineBraks()
.ReplaceSchemas(QtiResourceType.Manifest, QtiVersion.Qti30, fromVersion, localSchema)
)
{
}
