/// <summary>
/// Gets document pages data, dimensions and rotation angles.
/// </summary>
/// <param name="postedData">Posted data with document guid.</param>
/// <param name="loadAllPages">Flag to load all pages.</param>
/// <returns>Document pages data, dimensions and rotation angles.</returns>
private static LoadDocumentEntity GetDocumentPages(PostedDataEntity postedData, bool loadAllPages, bool printVersion = false)
{
// get/set parameters
string documentGuid = postedData.guid;
string password = string.IsNullOrEmpty(postedData.password) ? null : postedData.password;
var fileFolderName = Path.GetFileName(documentGuid).Replace(".", "_");
string fileCacheSubFolder = Path.Combine(cachePath, fileFolderName);
if (!File.Exists(documentGuid))
{
throw new GroupDocsViewerException("File not found.");
}
IViewerCache cache = new FileViewerCache(cachePath, fileCacheSubFolder);
LoadDocumentEntity loadDocumentEntity;
if (globalConfiguration.GetViewerConfiguration().GetIsHtmlMode() && !printVersion)
{
using (HtmlViewer htmlViewer = new HtmlViewer(documentGuid, cache, GetLoadOptions(password)))
{
loadDocumentEntity = GetLoadDocumentEntity(loadAllPages, documentGuid, fileCacheSubFolder, htmlViewer, printVersion);
}
}
else
{
using (PngViewer pngViewer = new PngViewer(documentGuid, cache, GetLoadOptions(password)))
{
loadDocumentEntity = GetLoadDocumentEntity(loadAllPages, documentGuid, fileCacheSubFolder, pngViewer, printVersion);
}
}
return(loadDocumentEntity);
}
public HttpResponseMessage RotateDocumentPages(PostedDataEntity postedData)
{
try
{
var documentGuid = postedData.guid;
var pageNumber = postedData.pages[0];
string password = string.IsNullOrEmpty(postedData.password) ? null : postedData.password;
var fileFolderName = Path.GetFileName(documentGuid).Replace(".", "_");
string fileCacheSubFolder = Path.Combine(cachePath, fileFolderName);
// Delete page cache-files before regenerating with another angle.
var cacheFiles = Directory.GetFiles(fileCacheSubFolder).Where(f => Path.GetFileName(f).StartsWith($"p{pageNumber}"));
cacheFiles.ForEach(f => File.Delete(f));
// Getting new rotation angle value.
var currentAngle = GetCurrentAngle(pageNumber, Path.Combine(fileCacheSubFolder, "PagesInfo.xml"));
int newAngle = GetNewAngleValue(currentAngle, postedData.angle);
SaveChangedAngleInCache(fileCacheSubFolder, pageNumber, newAngle);
IViewerCache cache = new FileViewerCache(cachePath, fileCacheSubFolder);
PageDescriptionEntity page;
if (globalConfiguration.GetViewerConfiguration().GetIsHtmlMode())
{
using (HtmlViewer htmlViewer = new HtmlViewer(documentGuid, cache, GetLoadOptions(password), pageNumber, newAngle))
{
page = this.GetPageDescritpionEntity(htmlViewer, documentGuid, pageNumber, fileCacheSubFolder);
}
}
else
{
using (PngViewer pngViewer = new PngViewer(documentGuid, cache, GetLoadOptions(password), pageNumber, newAngle))
{
page = this.GetPageDescritpionEntity(pngViewer, documentGuid, pageNumber, fileCacheSubFolder);
}
}
return(this.Request.CreateResponse(HttpStatusCode.OK, page));
}
catch (Exception ex)
{
// set exception message
return(this.Request.CreateResponse(HttpStatusCode.InternalServerError, new Resources().GenerateException(ex)));
}
}
public HttpResponseMessage GetDocumentPage(PostedDataEntity postedData)
{
string password = string.Empty;
try
{
string documentGuid = postedData.guid;
int pageNumber = postedData.page;
password = string.IsNullOrEmpty(postedData.password) ? null : postedData.password;
var fileFolderName = Path.GetFileName(documentGuid).Replace(".", "_");
string fileCacheSubFolder = Path.Combine(cachePath, fileFolderName);
IViewerCache cache = new FileViewerCache(cachePath, fileCacheSubFolder);
PageDescriptionEntity page;
if (globalConfiguration.GetViewerConfiguration().GetIsHtmlMode())
{
using (HtmlViewer htmlViewer = new HtmlViewer(documentGuid, cache, GetLoadOptions(password)))
{
page = this.GetPageDescritpionEntity(htmlViewer, documentGuid, pageNumber, fileCacheSubFolder);
}
}
else
{
using (PngViewer pngViewer = new PngViewer(documentGuid, cache, GetLoadOptions(password)))
{
page = this.GetPageDescritpionEntity(pngViewer, documentGuid, pageNumber, fileCacheSubFolder);
}
}
return(this.Request.CreateResponse(HttpStatusCode.OK, page));
}
catch (Exception ex)
{
// set exception message
return(this.Request.CreateResponse(HttpStatusCode.Forbidden, new Resources().GenerateException(ex, password)));
}
}