public void MediaUrl(dynamic Shape, dynamic Display, TextWriter Output, string Profile, string Path, ContentItem ContentItem, FilterRecord CustomFilter) {
try {
Shape.IgnoreShapeTracer = true;
Output.Write(_imageProfileManager.Value.GetImageProfileUrl(Path, Profile, CustomFilter, ContentItem));
}
catch (Exception ex) {
Logger.Error(ex, "An error occured while rendering shape {0} for image {1}", Profile, Path);
}
}
public void ResizeMediaUrl(dynamic Shape, dynamic Display, TextWriter Output, ContentItem ContentItem, string Path, int Width, int Height, string Mode, string Alignment, string PadColor) {
var state = new Dictionary<string, string> {
{"Width", Width.ToString(CultureInfo.InvariantCulture)},
{"Height", Height.ToString(CultureInfo.InvariantCulture)},
{"Mode", Mode},
{"Alignment", Alignment},
{"PadColor", PadColor},
};
var filter = new FilterRecord {
Category = "Transform",
Type = "Resize",
State = FormParametersHelper.ToString(state)
};
var profile = "Transform_Resize"
+ "_w_" + Convert.ToString(Width)
+ "_h_" + Convert.ToString(Height)
+ "_m_" + Convert.ToString(Mode)
+ "_a_" + Convert.ToString(Alignment)
+ "_c_" + Convert.ToString(PadColor);
MediaUrl(Shape, Display, Output, profile, Path, ContentItem, filter);
}
public ActionResult EditPost(int id, string category, string type, [DefaultValue(-1)] int filterId, FormCollection formCollection) {
var profile = _profileService.GetImageProfile(id);
var filter = _processingManager.DescribeFilters().SelectMany(x => x.Descriptors).FirstOrDefault(x => x.Category == category && x.Type == type);
var model = new FilterEditViewModel();
TryUpdateModel(model);
// validating form values
_formManager.Validate(new ValidatingContext {FormName = filter.Form, ModelState = ModelState, ValueProvider = ValueProvider});
if (ModelState.IsValid) {
var filterRecord = profile.Filters.FirstOrDefault(f => f.Id == filterId);
// add new filter record if it's a newly created filter
if (filterRecord == null) {
filterRecord = new FilterRecord {
Category = category,
Type = type,
Position = profile.Filters.Count
};
profile.Filters.Add(filterRecord);
}
var dictionary = formCollection.AllKeys.ToDictionary(key => key, formCollection.Get);
// save form parameters
filterRecord.State = FormParametersHelper.ToString(dictionary);
filterRecord.Description = model.Description;
// set profile as updated
profile.ModifiedUtc = DateTime.UtcNow;
profile.FileNames.Clear();
_signals.Trigger("MediaProcessing_" + profile.Name + "_Saved");
return RedirectToAction("Edit", "Admin", new {id});
}
// model is invalid, display it again
var form = _formManager.Build(filter.Form);
_formManager.Bind(form, formCollection);
var viewModel = new FilterEditViewModel {Id = id, Description = model.Description, Filter = filter, Form = form};
return View(viewModel);
}
public string GetImageProfileUrl(string path, string profileName, FilterRecord customFilter, ContentItem contentItem) {
// path is the publicUrl of the media, so it might contain url-encoded chars
// try to load the processed filename from cache
var filePath = _fileNameProvider.GetFileName(profileName, System.Web.HttpUtility.UrlDecode(path));
bool process = false;
//after reboot the app cache is empty so we reload the image in the cache if it exists in the _Profiles folder
if (string.IsNullOrEmpty(filePath)) {
var profileFilePath = _storageProvider.Combine("_Profiles", FormatProfilePath(profileName, System.Web.HttpUtility.UrlDecode(path)));
if (_storageProvider.FileExists(profileFilePath)) {
_fileNameProvider.UpdateFileName(profileName, System.Web.HttpUtility.UrlDecode(path), profileFilePath);
filePath = profileFilePath;
}
}
// if the filename is not cached, process it
if (string.IsNullOrEmpty(filePath)) {
Logger.Debug("FilePath is null, processing required, profile {0} for image {1}", profileName, path);
process = true;
}
// the processd file doesn't exist anymore, process it
else if (!_storageProvider.FileExists(filePath)) {
Logger.Debug("Processed file no longer exists, processing required, profile {0} for image {1}", profileName, path);
process = true;
}
// if the original file is more recent, process it
else {
DateTime pathLastUpdated;
if (TryGetImageLastUpdated(path, out pathLastUpdated)) {
var filePathLastUpdated = _storageProvider.GetFile(filePath).GetLastUpdated();
if (pathLastUpdated > filePathLastUpdated) {
Logger.Debug("Original file more recent, processing required, profile {0} for image {1}", profileName, path);
process = true;
}
}
}
// todo: regenerate the file if the profile is newer, by deleting the associated filename cache entries.
if (process) {
Logger.Debug("Processing profile {0} for image {1}", profileName, path);
ImageProfilePart profilePart;
if (customFilter == null) {
profilePart = _profileService.GetImageProfileByName(profileName);
if (profilePart == null)
return String.Empty;
}
else {
profilePart = _services.ContentManager.New<ImageProfilePart>("ImageProfile");
profilePart.Name = profileName;
profilePart.Filters.Add(customFilter);
}
// prevent two requests from processing the same file at the same time
// this is only thread safe at the machine level, so there is a try/catch later
// to handle cross machines concurrency
lock (String.Intern(path)) {
using (var image = GetImage(path)) {
var filterContext = new FilterContext { Media = image, FilePath = _storageProvider.Combine("_Profiles", FormatProfilePath(profileName, System.Web.HttpUtility.UrlDecode(path))) };
if (image == null) {
return filterContext.FilePath;
}
var tokens = new Dictionary<string, object>();
// if a content item is provided, use it while tokenizing
if (contentItem != null) {
tokens.Add("Content", contentItem);
}
foreach (var filter in profilePart.Filters.OrderBy(f => f.Position)) {
var descriptor = _processingManager.DescribeFilters().SelectMany(x => x.Descriptors).FirstOrDefault(x => x.Category == filter.Category && x.Type == filter.Type);
if (descriptor == null)
continue;
var tokenized = _tokenizer.Replace(filter.State, tokens);
filterContext.State = FormParametersHelper.ToDynamic(tokenized);
descriptor.Filter(filterContext);
}
_fileNameProvider.UpdateFileName(profileName, System.Web.HttpUtility.UrlDecode(path), filterContext.FilePath);
if (!filterContext.Saved) {
try {
var newFile = _storageProvider.OpenOrCreate(filterContext.FilePath);
using (var imageStream = newFile.OpenWrite()) {
using (var sw = new BinaryWriter(imageStream)) {
if (filterContext.Media.CanSeek) {
filterContext.Media.Seek(0, SeekOrigin.Begin);
}
using (var sr = new BinaryReader(filterContext.Media)) {
int count;
var buffer = new byte[8192];
while ((count = sr.Read(buffer, 0, buffer.Length)) != 0) {
sw.Write(buffer, 0, count);
}
}
}
}
}
catch(Exception e) {
Logger.Error(e, "A profile could not be processed: " + path);
}
}
filterContext.Media.Dispose();
filePath = filterContext.FilePath;
}
}
}
// generate a timestamped url to force client caches to update if the file has changed
var publicUrl = _storageProvider.GetPublicUrl(filePath);
var timestamp = _storageProvider.GetFile(filePath).GetLastUpdated().Ticks;
return publicUrl + "?v=" + timestamp.ToString(CultureInfo.InvariantCulture);
}
public string GetImageProfileUrl(string path, string profileName, FilterRecord customFilter) {
return GetImageProfileUrl(path, profileName, customFilter, null);
}
public string GetImageProfileUrl(string path, string profileName, FilterRecord customFilter, ContentItem contentItem) {
// try to load the processed filename from cache
var filePath = _fileNameProvider.GetFileName(profileName, path);
bool process = false;
// if the filename is not cached, process it
if (string.IsNullOrEmpty(filePath)) {
Logger.Debug("FilePath is null, processing required, profile {0} for image {1}", profileName, path);
process = true;
}
// the processd file doesn't exist anymore, process it
else if (!_storageProvider.FileExists(filePath)) {
Logger.Debug("Processed file no longer exists, processing required, profile {0} for image {1}", profileName, path);
process = true;
}
// if the original file is more recent, process it
else {
DateTime pathLastUpdated;
if (TryGetImageLastUpdated(path, out pathLastUpdated)) {
var filePathLastUpdated = _storageProvider.GetFile(filePath).GetLastUpdated();
if (pathLastUpdated > filePathLastUpdated) {
Logger.Debug("Original file more recent, processing required, profile {0} for image {1}", profileName, path);
process = true;
}
}
}
// todo: regenerate the file if the profile is newer, by deleting the associated filename cache entries.
if (process) {
Logger.Debug("Processing profile {0} for image {1}", profileName, path);
ImageProfilePart profilePart;
if (customFilter == null) {
profilePart = _profileService.GetImageProfileByName(profileName);
if (profilePart == null)
return String.Empty;
}
else {
profilePart = _services.ContentManager.New<ImageProfilePart>("ImageProfile");
profilePart.Name = profileName;
profilePart.Filters.Add(customFilter);
}
using (var image = GetImage(path)) {
var filterContext = new FilterContext { Media = image, FilePath = _storageProvider.Combine("_Profiles", _storageProvider.Combine(profileName, CreateDefaultFileName(path))) };
var tokens = new Dictionary<string, object>();
// if a content item is provided, use it while tokenizing
if (contentItem != null) {
tokens.Add("Content", contentItem);
}
foreach (var filter in profilePart.Filters.OrderBy(f => f.Position)) {
var descriptor = _processingManager.DescribeFilters().SelectMany(x => x.Descriptors).FirstOrDefault(x => x.Category == filter.Category && x.Type == filter.Type);
if (descriptor == null)
continue;
var tokenized = _tokenizer.Replace(filter.State, tokens);
filterContext.State = FormParametersHelper.ToDynamic(tokenized);
descriptor.Filter(filterContext);
}
_fileNameProvider.UpdateFileName(profileName, path, filterContext.FilePath);
if (!filterContext.Saved) {
_storageProvider.TryCreateFolder(_storageProvider.Combine("_Profiles", profilePart.Name));
var newFile = _storageProvider.OpenOrCreate(filterContext.FilePath);
using (var imageStream = newFile.OpenWrite()) {
using (var sw = new BinaryWriter(imageStream)) {
if (filterContext.Media.CanSeek) {
filterContext.Media.Seek(0, SeekOrigin.Begin);
}
using (var sr = new BinaryReader(filterContext.Media)) {
int count;
var buffer = new byte[8192];
while ((count = sr.Read(buffer, 0, buffer.Length)) != 0) {
sw.Write(buffer, 0, count);
}
}
}
}
}
filterContext.Media.Dispose();
filePath = filterContext.FilePath;
}
}
// generate a timestamped url to force client caches to update if the file has changed
var publicUrl = _storageProvider.GetPublicUrl(filePath);
var timestamp = _storageProvider.GetFile(filePath).GetLastUpdated().Ticks;
return publicUrl + "?v=" + timestamp.ToString(CultureInfo.InvariantCulture);
}
public string GetImageProfileUrl(string path, string profileName, FilterRecord customFilter, ContentItem contentItem) {
return GetImageProfileUrl(path, profileName, contentItem, customFilter);
}
public string GetImageProfileUrl(string path, string profileName, FilterRecord customFilter, ContentItem contentItem) {
var customFilters = customFilter != null ? new FilterRecord[] { customFilter } : null;
return GetImageProfileUrl(path, profileName, contentItem, customFilters);
}
