public LocalizedString DisplayFilter(FilterContext context) {
string mode = context.State.Mode;
switch (mode) {
case "pad": return T("Pad to {0}x{1}", context.State.Height, context.State.Width);
case "crop": return T("Crop to {0}x{1}", context.State.Height, context.State.Width);
case "stretch": return T("Stretch to {0}x{1}", context.State.Height, context.State.Width);
default: return T("Resize to {0}x{1}", context.State.Height, context.State.Width);
}
}
public void ApplyFilter(FilterContext context) {
int witdh = context.State.Width;
int height = context.State.Height;
string mode = context.State.Mode;
string alignment = context.State.Alignment;
string padcolor = context.State.PadColor;
var settings = new ResizeSettings {
Mode = FitMode.Max,
Height = height,
Width = witdh
};
switch (mode) {
case "max": settings.Mode = FitMode.Max; break;
case "pad":
settings.Mode = FitMode.Pad;
settings.Scale = ScaleMode.Both;
break;
case "crop": settings.Mode = FitMode.Crop; break;
case "stretch": settings.Mode = FitMode.Stretch; break;
}
switch (alignment) {
case "topleft": settings.Anchor = ContentAlignment.TopLeft; break;
case "topcenter": settings.Anchor = ContentAlignment.TopCenter; break;
case "topright": settings.Anchor = ContentAlignment.TopRight; break;
case "middleleft": settings.Anchor = ContentAlignment.MiddleLeft; break;
case "middlecenter": settings.Anchor = ContentAlignment.MiddleCenter; break;
case "middleright": settings.Anchor = ContentAlignment.MiddleRight; break;
case "bottomleft": settings.Anchor = ContentAlignment.BottomLeft; break;
case "bottomcenter": settings.Anchor = ContentAlignment.BottomCenter; break;
case "bottomright": settings.Anchor = ContentAlignment.BottomRight; break;
}
if (!String.IsNullOrWhiteSpace(padcolor)) {
if (padcolor.StartsWith("#")) {
settings.BackgroundColor = ColorTranslator.FromHtml(padcolor);
}
else {
settings.BackgroundColor = Color.FromName(padcolor);
}
}
var result = new MemoryStream();
if (context.Media.CanSeek) {
context.Media.Seek(0, SeekOrigin.Begin);
}
ImageBuilder.Current.Build(context.Media, result, settings, true);
context.Media = result;
}
public void ApplyFilter(FilterContext context) {
string format = context.State.Format;
int quality = context.State.Quality;
var settings = new ResizeSettings {
Quality = quality,
Format = format
};
var result = new MemoryStream();
if (context.Media.CanSeek) {
context.Media.Seek(0, SeekOrigin.Begin);
}
ImageBuilder.Current.Build(context.Media, result, settings);
context.FilePath = Path.ChangeExtension(context.FilePath, format);
context.Media = result;
}
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 LocalizedString DisplayFilter(FilterContext context) {
string mode = context.State.Mode;
switch (mode) {
case "pad": return T("Format to {0} and Pad to {1}x{2}", context.State.Format, context.State.Height, context.State.Width);
case "crop": return T("Format to {0} and Crop to {1}x{2}", context.State.Format, context.State.Height, context.State.Width);
case "stretch": return T("Format to {0} and Stretch to {1}x{2}", context.State.Format, context.State.Height, context.State.Width);
default: return T("Format to {0} and resize to Max {1}x{2}", context.State.Format, context.State.Height, context.State.Width);
}
}
public void ApplyFilter(FilterContext context) {
int width = context.State.Width;
int height = context.State.Height;
string mode = context.State.Mode;
string alignment = context.State.Alignment;
string padcolor = context.State.PadColor;
int quality = context.State.Quality;
string format = context.State.Format;
// Set the format and extension correctly
// ImageResizer automagically changes the format from tiff to jpeg
if (string.Compare(format, "(any)", true) == 0)
if (string.Compare(Path.GetExtension(context.FilePath), ".tif", true) == 0)
format = "jpg";
else
format = Path.GetExtension(context.FilePath);
context.FilePath = Path.ChangeExtension(context.FilePath, format);
var settings = new ResizeSettings {
Mode = FitMode.Max,
Height = height,
Width = width,
Format = format,
Quality = quality
};
switch (mode) {
case "max": settings.Mode = FitMode.Max; break;
case "pad": settings.Mode = FitMode.Pad; break;
case "crop": settings.Mode = FitMode.Crop; break;
case "stretch": settings.Mode = FitMode.Stretch; break;
}
switch (alignment) {
case "topleft": settings.Anchor = ContentAlignment.TopLeft; break;
case "topcenter": settings.Anchor = ContentAlignment.TopCenter; break;
case "topright": settings.Anchor = ContentAlignment.TopRight; break;
case "middleleft": settings.Anchor = ContentAlignment.MiddleLeft; break;
case "middlecenter": settings.Anchor = ContentAlignment.MiddleCenter; break;
case "middleright": settings.Anchor = ContentAlignment.MiddleRight; break;
case "bottomleft": settings.Anchor = ContentAlignment.BottomLeft; break;
case "bottomcenter": settings.Anchor = ContentAlignment.BottomCenter; break;
case "bottomright": settings.Anchor = ContentAlignment.BottomRight; break;
}
if (!String.IsNullOrWhiteSpace(padcolor)) {
if (padcolor.StartsWith("#")) {
settings.BackgroundColor = ColorTranslator.FromHtml(padcolor);
}
else {
settings.BackgroundColor = Color.FromName(padcolor);
}
}
var result = new MemoryStream();
if (context.Media.CanSeek) {
context.Media.Seek(0, SeekOrigin.Begin);
}
ImageBuilder.Current.Build(context.Media, result, settings);
context.Media = result;
}
public LocalizedString DisplayFilter(FilterContext context) {
return T("Format the image to {0}", (string)context.State.Format);
}
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);
}
