We have a small utility program that removes ICC profile, and I'm trying to optimize it.
The current program uses roughly this method to remove an ICC profile:
foreach (var item in doc.ObjectSoup)
{
if (item != null && doc.GetInfo(item.ID, "/ColorSpace*[0]*:Name").Equals("ICCBased", StringComparison.InvariantCultureIgnoreCase))
{
int profileId = doc.GetInfoInt(item.ID, "/ColorSpace*[1]:Ref"); // note the [1]: why is it there?
if (profileId != 0)
{
doc.GetInfo(profileId, "Decompress");
string profileData = doc.GetInfo(profileId, "Stream");
// this outputs the ICC profile raw data, with the profile's name somewhere up top
Console.WriteLine(string.Format("ICC profile for object ID {0}: {1}", item.ID, profileData));
doc.SetInfo(profileId, "Stream", string.Empty);
doc.GetInfo(profileId, "Compress");
}
}
}
Now, I want to optimize it, to be able to remove only some profiles (depending on the names), or only RGB profiles for instance (and keep CMYK ones). So I wanted to use actual objects :
foreach (var item in doc.ObjectSoup)
{
if (doc.GetInfo(item.ID, "Type") == "jpeg") // only work on PixMaps
{
PixMap pm = (PixMap)item;
if (pm.ColorSpaceType == ColorSpaceType.ICCBased)
{
// pm.ColorSpace.IccProfile is always null so I can't really set it to null or Recolor() it because it would change noting
// Also, there should already be an ICC profile (ColorSpaceType = ICCBased) but ColorSpace.IccProfile creates one (which is by design if there is none)
Console.WriteLine(string.Format("ICC profile for object ID {0}: {1}", item.ID, pm.ColorSpace.IccProfile));
}
}
}
Here is a sample program that showcases the problem : https://github.com/tbroust-trepia/abcpdf8-icc-profiles
Am I doing something wrong ? Is there something weird going on with the provided images ?
I'm using ABCPdf 8.
Thanks for your help.
Related
I am creating a plugin that makes use of the code available from BCFier to select elements from an external server version of the file and highlight them in a Revit view, except the elements are clearly not found in Revit as all elements appear and none are highlighted. The specific pieces of code I am using are:
private void SelectElements(Viewpoint v)
{
var elementsToSelect = new List<ElementId>();
var elementsToHide = new List<ElementId>();
var elementsToShow = new List<ElementId>();
var visibleElems = new FilteredElementCollector(OpenPlugin.doc, OpenPlugin.doc.ActiveView.Id)
.WhereElementIsNotElementType()
.WhereElementIsViewIndependent()
.ToElementIds()
.Where(e => OpenPlugin.doc.GetElement(e).CanBeHidden(OpenPlugin.doc.ActiveView)); //might affect performance, but it's necessary
bool canSetVisibility = (v.Components.Visibility != null &&
v.Components.Visibility.DefaultVisibility &&
v.Components.Visibility.Exceptions.Any());
bool canSetSelection = (v.Components.Selection != null && v.Components.Selection.Any());
//loop elements
foreach (var e in visibleElems)
{
//string guid = ExportUtils.GetExportId(OpenPlugin.doc, e).ToString();
var guid = IfcGuid.ToIfcGuid(ExportUtils.GetExportId(OpenPlugin.doc, e));
Trace.WriteLine(guid.ToString());
if (canSetVisibility)
{
if (v.Components.Visibility.DefaultVisibility)
{
if (v.Components.Visibility.Exceptions.Any(x => x.IfcGuid == guid))
elementsToHide.Add(e);
}
else
{
if (v.Components.Visibility.Exceptions.Any(x => x.IfcGuid == guid))
elementsToShow.Add(e);
}
}
if (canSetSelection)
{
if (v.Components.Selection.Any(x => x.IfcGuid == guid))
elementsToSelect.Add(e);
}
}
try
{
OpenPlugin.HandlerSelect.elementsToSelect = elementsToSelect;
OpenPlugin.HandlerSelect.elementsToHide = elementsToHide;
OpenPlugin.HandlerSelect.elementsToShow = elementsToShow;
OpenPlugin.selectEvent.Raise();
} catch (System.Exception ex)
{
TaskDialog.Show("Exception", ex.Message);
}
}
Which is the section that should filter the lists, which it does do as it produces IDs that look like this:
3GB5RcUGnAzQe9amE4i4IN
3GB5RcUGnAzQe9amE4i4Ib
3GB5RcUGnAzQe9amE4i4J6
3GB5RcUGnAzQe9amE4i4JH
3GB5RcUGnAzQe9amE4i4Ji
3GB5RcUGnAzQe9amE4i4J$
3GB5RcUGnAzQe9amE4i4GD
3GB5RcUGnAzQe9amE4i4Gy
3GB5RcUGnAzQe9amE4i4HM
3GB5RcUGnAzQe9amE4i4HX
3GB5RcUGnAzQe9amE4i4Hf
068MKId$X7hf9uMEB2S_no
The trouble with this is, comparing it to the list of IDs in the IFC file that we imported it from reveals that these IDs do not appear in the IFC file, and looking at it in Revit I found that none of the Guids in Revit weren't in the list that appeared either. Almost all the objects also matched the same main part of the IDs as well, and I'm not experienced enough to know how likely that is.
So my question is, is it something in this code that is an issue?
The IFC GUID is based on the Revit UniqueId but not identical. Please read about the Element Identifiers in RVT, IFC, NW and Forge to learn how they are connected.
I'm creating a file in Acumatica by calling an action from the API, so that I can retrieve the file in my application.
Is it possible to delete the file via API after I'm done with it? I'd rather not have it cluttering up my Acumatica database.
Failing this, is there a recommended cleanup approach for these files?
Found examples of how to delete a file from within Acumatica, as well as how to save a new version of an existing file! The below implementation saves a new version but has the deletion method commented out. Because I built this into my report generation process, I'm not later deleting the report via API, but it would be easy to translate a deletion into an action callable by the API.
private IEnumerable ExportReport(PXAdapter adapter, string reportID, Dictionary<String, String> parameters)
{
//Press save if the SO is not completed
if (Base.Document.Current.Completed == false)
{
Base.Save.Press();
}
PX.SM.FileInfo file = null;
using (Report report = PXReportTools.LoadReport(reportID, null))
{
if (report == null)
{
throw new Exception("Unable to access Acumatica report writer for specified report : " + reportID);
}
PXReportTools.InitReportParameters(report, parameters, PXSettingProvider.Instance.Default);
ReportNode reportNode = ReportProcessor.ProcessReport(report);
IRenderFilter renderFilter = ReportProcessor.GetRenderer(ReportProcessor.FilterPdf);
//Generate the PDF
byte[] data = PX.Reports.Mail.Message.GenerateReport(reportNode, ReportProcessor.FilterPdf).First();
file = new PX.SM.FileInfo(reportNode.ExportFileName + ".pdf", null, data);
//Save the PDF to the SO
UploadFileMaintenance graph = new UploadFileMaintenance();
//Check to see if a file with this name already exists
Guid[] files = PXNoteAttribute.GetFileNotes(Base.Document.Cache, Base.Document.Current);
foreach (Guid fileID in files)
{
FileInfo existingFile = graph.GetFileWithNoData(fileID);
if (existingFile.Name == reportNode.ExportFileName + ".pdf")
{
//If we later decide we want to delete previous versions instead of saving them, this can be changed to
//UploadFileMaintenance.DeleteFile(existingFile.UID);
//But in the meantime, for history purposes, set the UID of the new file to that of the existing file so we can save it as a new version.
file.UID = existingFile.UID;
}
}
//Save the file with the setting to create a new version if one already exists based on the UID
graph.SaveFile(file, FileExistsAction.CreateVersion);
//Save the note attribute so we can find it again.
PXNoteAttribute.AttachFile(Base.Document.Cache, Base.Document.Current, file);
}
//Return the info on the file
return adapter.Get();
}
The response from Acumatica:
S-b (Screen-base) API allows clean way of downloading report generated as file. C-b (Contract-base) simply does not have this feature added. I suggest you provided feedback here: feedback.acumatica.com (EDIT: Done! https://feedback.acumatica.com/ideas/ACU-I-1852)
I think couple of workaround are:
1) use s-b using login from c-b to generate report and get as file (see example below), or
2) create another method to delete the file once required report file is downloaded. For that, you will need to pass back FileID or something to identify for deletion.
example of #1
using (DefaultSoapClient sc = new DefaultSoapClient("DefaultSoap1"))
{
string sharedCookie;
using (new OperationContextScope(sc.InnerChannel))
{
sc.Login("admin", "123", "Company", null, null);
var responseMessageProperty = (HttpResponseMessageProperty)
OperationContext.Current.IncomingMessageProperties[HttpResponseMessageProperty.Name];
sharedCookie = responseMessageProperty.Headers.Get("Set-Cookie");
}
try
{
Screen scr = new Screen(); // add reference to report e.g. http://localhost/Demo2018R2/Soap/SO641010.asmx
scr.CookieContainer = new System.Net.CookieContainer();
scr.CookieContainer.SetCookies(new Uri(scr.Url), sharedCookie);
var schema = scr.GetSchema();
var commands = new Command[]
{
new Value { LinkedCommand = schema.Parameters.OrderType, Value = "SO" },
new Value { LinkedCommand = schema.Parameters.OrderNumber, Value = "SO004425" },
schema.ReportResults.PdfContent
};
var data = scr.Submit(commands);
if(data != null && data.Length > 0)
{
System.IO.File.WriteAllBytes(#"c:\Temp\SalesOrder.pdf",
Convert.FromBase64String(data[0].ReportResults.PdfContent.Value));
}
}
finally
{
sc.Logout();
}
}
Hope this helps. Also, it would be great if you update the stackover post based on these suggestions.
Thanks
Nayan Mansinha
Lead - Developer Support | Acumatica
CakePHP Version 3.5.5
The id is visible in the address bar for view and edit which for my application creates a security risk. Any logged in user at the same company can change the id in the address bar and view or edit the details
of users they are not allowed to.
IE: https://localhost/crm/users/edit/1378 can be manually changed in the address bar to https://localhost/crm/users/edit/1215 and entered. This would display the details of user 1215 which is not allowed.
To overcome this I am selecting the ids which the user is allowed to edit and checking that the id from the url is one of these ids with the following code:
public function view($id = null)
{
if ($this->request->is('get')) {
// Select the permitted ids.
if (superuser) { // example to explain only
$query = $this->Users->find()
->where(['companyid' => $cid])
->andWhere(['status' => 1])
->toArray();
}
elseif (manager) { // example to explain only
$query = $this->Users->find()
->where(['areaid' => $areaid])
->andWhere(['status' => 1])
->toArray();
}
elseif (team leader) { // example to explain only
$query = $this->Users->find()
->where(['teamid' => $teamid])
->andWhere(['status' => 1])
->toArray();
}
// Check if the edit id is in the array of permitted ids.
$ids = array_column($query, 'id');
$foundKey = array_search($id, $ids);
// If the edit id is not in the array of permitted ids redirect to blank.
if (empty($foundKey)) {
// Handle error.
}
$user = $this->Users->get($id);
$this->set('user', $user);
$this->set('_serialize', ['user']);
}
else {
// Handle error.
}
}
My question: Is the above code the best cake way of achieving this or is there a better way to do it?
This code does work but because it's to do with security I'd appreciate any input which would improve it or point out it's weakness/es.
/////////////////////////////////////////////////////////////////////////////
As requested by cgTag please see below.
My app has superusers, managers, team leaders and users.
Managers manage one area which can contain many teams.
Team Leaders lead one team and must belong to an area.
Users are assigned to an area or a team.
For example:
Area is UK
Team is England
Team is Scotland
Team is Wales
Area is USA
Team is Florida
Team is California
Team is Texas
On index - superusers see all the superusers, managers, team leaders and users in the company.
On index - managers see themself and users in their area, team leaders in their area and users in the teams.
On index - team leaders see themself and users in their team
My problem is say the manager of area UK clicks edit on one of the records and that record is displayed with a url of https://localhost/crm/users/edit/1378
Then say this disgruntled manager makes a guess and changes the url to https://localhost/crm/users/edit/1215 and submits it then this record is displayed. (This record could be anyone, a superuser, another manager, a team leader who is not in their area or a user not in their area.
This manager could then change say the email address and submit this and it's this type of situation that I need to protect against.
My fix is to reiterate the find for the superuser, manager and team leader I've done on index in the view and edit class. This ensures that say a manager can only view or edit someone in their area.
Hopefully I've explained it well enough but if not just let me know and I'll have another go.
Thanks. Z.
/////////////////////////////////////////////////////////////////////////////
Thanks cgTag, I feel a lot more confident with this approach but I cannot use this code because you have correctly assumed that I am using an id to select all the companies results but I'm using a 40 char string. I do this so I can make my sql queries more robust.
It's impossible for you to help me unless you have all the info required so I have posted an accurate representation below:
public function view($id = null)
{
if(!$this->request->is('get') || !$id) {
//throw new ForbiddenException();
echo 'in request is NOT get or id NOT set ' . '<hr />';
}
$user_id = $this->Auth->user('id');
// regular users can never view other users.
if($user_id !== $id) {
//throw new ForbiddenException();
echo 'in $user_id !== $id ' . '<hr />';
}
// Declare client id 1.
if ($this->cid1() === false) {
echo 'in throw exception ' . '<hr />';
}
else {
$c1 = null;
$c1 = $this->cid1();
}
$company_ids = $this->getCompanyIds($c1);
$area_ids = $this->getAreaIds($user_id, $c1);
$team_ids = $this->getTeamIds($user_id, $c1);
// company_id does not exist which will cause an unknown column error.
// The column I select by is cid_1 so I have changed this column to cid_1 as shown below.
$user = $this->Users->find()
->where([
'id' => $id,
'cid_1 IN' => $company_ids,
'area_id IN' => $area_ids,
'team_id IN' => $team_ids,
'status' => 1
])
->firstOrFail();
$this->set(compact('user'));
}
The functions:
public function cid1()
{
$session = $this->request->session();
if ($session->check('Cid.one')) {
$c1 = null;
$c1 = $session->read('Cid.one');
if (!is_string($c1) || is_numeric($c1) || (strlen($c1) !== 40)) {
return false;
}
return $c1;
}
return false;
}
public function getCompanyIds($c1 = null)
{
$query = $this->Users->find()
->where(['status' => 1])
->andWhere(['cid_1' => $c1]);
return $query;
}
public function getAreaIds($c1 = null, $user_id = null)
{
$query = $this->Users->find()
->where(['status' => 1])
->andWhere(['cid_1' => $c1])
->andWhere(['area_id' => $user_id]);
return $query;
}
public function getTeamIds($c1 = null, $user_id = null)
{
$query = $this->Users->find()
->where(['status' => 1])
->andWhere(['cid_1' => $c1])
->andWhere(['team_id' => $user_id]);
return $query;
}
With this code I get the following error:
Error: SQLSTATE[21000]: Cardinality violation: 1241 Operand should contain 1 column(s)
I don't know if your example will work with this new information but at least you have all the information now.
If it can be ammended great but if not I really don't mind. And I do appreciate the time you've put aside to try to help.
Thanks Z
/////////////////////////////////////////////////////////////////////////////
#tarikul05 - Thanks for the input.
Your suggestion is very similar to my first effort at addressing this security issue but I went for security through obscurity and hid the id in a 80 char string, example below.
// In a cell
public function display($id = null)
{
// Encrypt the id to pass with view and edit links.
$idArray = str_split($id);
foreach($idArray as $arrkey => $arrVal) {
$id0 = "$idArray[0]";
$id1 = "$idArray[1]";
$id2 = "$idArray[2]";
$id3 = "$idArray[3]";
}
// Generate string for the id to be obscured in.
$enc1 = null;
$enc1 = sha1(uniqid(mt_rand(), true));
$enc2 = null;
$enc2 = sha1(uniqid(mt_rand(), true));
$encIdStr = $enc1 . $enc2;
// Split the string.
$encIdArray = null;
$encIdArray = str_split($encIdStr);
// Generate the coded sequence.
$codedSequence = null;
$codedSequence = array(9 => "$id0", 23 => "$id1", 54 => "$id2", 76 => "$id3");
// Replace the id in the random string.
$idTemp = null;
$idTemp = array_replace($encIdArray, $codedSequence);
// Implode the array.
$encryptedId = null;
$encryptedId = implode("",$idTemp);
// Send the encrypted id to the view.
$this->set('encryptedId', $encryptedId);
}
And then decrypted with
// In function in the app controller
public function decryptTheId($encryptedId = null)
{
$idArray = str_split($encryptedId);
foreach($idArray as $arrkey => $arrVal) {
$id0 = "$idArray[9]";
$id1 = "$idArray[23]";
$id2 = "$idArray[54]";
$id3 = "$idArray[76]";
}
$id = null;
$id = $id0.$id1.$id2.$id3;
return $id;
}
The problem with this was that when testing I managed to get the script to error which revealed the array positions which would of undermined the security by obscurity principle and made it a lot easier for a hacker.
Your suggestion is neater than my obscurity method but I believe md5 has been cracked therefore it should not be used.
I'm no security expert but in my opinion checking the view and edit id against an array of permitted ids is the most secure way to address this.
Maybe I'm wrong but if I do it this way there's is no way a hacker no matter what they try in the address bar can see or edit data they are not meant to and it keeps the url cleaner.
What I was originally looking/hoping for was a Cake method/function which addressed this but I couldn't find anything in the cookbook.
Thanks anyway. Z.
I would simplify your code so that the SQL that fetches the user record only finds that record if the current user has permissions. When you're dependent upon associated data for those conditions. Follow this approach even if you have to use joins.
You create the SQL conditions and then call firstOrFail() on the query. This throws a NotFoundException if there is no match for the record.
public function view($id = null) {
if(!$this->request->is('get') || !$id) {
throw new ForbiddenException();
}
$user_id = $this->Auth->user('id');
// regular users can never view other users.
if($user_id !== $id) {
throw new ForbiddenException();
}
$company_ids = $this->getCompanyIds($user_id);
$area_ids = $this->getAreaIds($user_id);
$team_ids = $this->getTeamIds($user_id);
$user = $this->Users->find()
->where([
'id' => $id
'company_id IN' => $company_ids,
'area_id IN' => $area_ids,
'team_id IN' => $team_ids,
'status' => 1
])
->firstOrFail();
$this->set(compact('user'));
}
The above logic should be sound when a user belongsTo a hierarchical structure of data. Where by, they can view many users but only if those users belong to one of the upper associations they have access too.
It works because of the IN clause of the where conditions.
Note: The IN operator throws an error if the array is empty. When you have users who can see all "teams" just exclude that where condition instead of using an empty array.
The key here is to have functions which return an array of allowed parent associations such as; getCompanyIds($user_id) would return just the company IDs the current user is allowed access too.
I think if you implement it this way then the logic is easy to understand, the security is solid and a simple firstOrFail() prevents access.
I am working with the D3.js force graph but I am not able to find out the element id from the element position (which I know).
I am using Leap motion. I need to simulate a mouse event (a click, a move, a drag, etc.) without a mouse. And, if I am right, in order to be able to do this, I need to find out what is the the element id from the coordinates x and y (these coordinates I know from the Leap motion pointer). So from what you wrote above, I need to find out the ('.node’).
Here is what I already tried but it did not work:
Is it possible to use non-mouse, non-touch events to interact with a D3.js graph? If so, what is the most efficient way to go about it?
So I used this function (see below), but I need to know the element id to make it work correctly:
//graph.simulate(document.getElementById("r_1"), 'dblclick', {pointerX: posX, pointerY: posY});
//here id r_1 is hardcoded, but I need to find out id from x and y coordinates.
this.simulate = function (element, eventName) {
function extend(destination, source) {
for (var property in source)
destination[property] = source[property];
return destination;
}
var eventMatchers = {
'HTMLEvents': /^(?:load|unload|abort|error|select|change|submit|reset|focus|blur|resize|scroll)$/,
'MouseEvents': /^(?:click|dblclick|mouse(?:down|up|over|move|out))$/
};
var defaultOptions = {
pointerX: 0,
pointerY: 0,
button: 0,
ctrlKey: false,
altKey: false,
shiftKey: false,
metaKey: false,
bubbles: true,
cancelable: true
};
var options = extend(defaultOptions, arguments[2] || {});
var oEvent, eventType = null;
for (var name in eventMatchers) {
if (eventMatchers[name].test(eventName)) {
eventType = name;
break;
}
}
if (!eventType)
throw new SyntaxError('Only HTMLEvents and MouseEvents interfaces are supported');
if (document.createEvent) {
oEvent = document.createEvent(eventType);
if (eventType == 'HTMLEvents') {
oEvent.initEvent(eventName, options.bubbles, options.cancelable);
}
else {
oEvent.initMouseEvent(eventName, options.bubbles, options.cancelable, document.defaultView,
options.button, options.pointerX, options.pointerY, options.pointerX, options.pointerY,
options.ctrlKey, options.altKey, options.shiftKey, options.metaKey, options.button, element);
}
element.dispatchEvent(oEvent);
}
else {
options.clientX = options.pointerX;
options.clientY = options.pointerY;
var evt = document.createEventObject();
oEvent = extend(evt, options);
element.fireEvent('on' + eventName, oEvent);
}
return element;
}
Many thanks for your help and ideas.
If you want access to the element, it's implicit in D3's iterators via this.
d3.selectAll('.node').each(function(d) {
console.log(this); // Logs the element attached to d.
});
If you really need access to the id, you can get it with selection.attr():
d3.selectAll('.node').each(function() {
console.log(d3.select(this).attr('id')); // Logs the id attribute.
});
You don't have to use each. Any of the iterators, such as attr or style, etc., have 'this' as the bound element:
d3.selectAll('.node').style('opacity', function(d) {
console.log(this);// Logs the element attached to d.
});
If you want the x and y coordinates of a node, it's part of the data:
d3.selectAll('.node').each(function(d) {
console.log(d.x, d.y); // Logs the x and y position of the datum.
});
If you really need the node attributes themselves, you can use the attr accessor.
d3.selectAll('.node').each(function(d) {
// Logs the cx and cy attributes of a node.
console.log(d3.select(this).attr('cx'), d3.select(this).attr('cy'));
});
EDIT: It looks like you need an element reference, but the only thing you know about the node in context is its position. One solution is to search through all nodes for a node with matching coordinates.
// Brute force search of all nodes.
function search(root, x, y) {
var found;
function recurse(node) {
if (node.x === x && node.y === y)
found = node;
!found && node.children && node.children.forEach(function(child) {
recurse(child);
});
}
recurse(root);
return found;
}
However this only gives you the node object, not the element itself. You will likely need to store the element references on the nodes:
// Give each node a reference to its dom element.
d3.selectAll('.node').each(function(d) {
d.element = this;
});
With that in place, you should be able to access the element and get its id.
var id, node = search(root, x, y);
if (node) {
id = node.element.getAttribute('id');
}
The brute-force search is fine for a small number of nodes, but if you're pushing a large number of nodes you might want to use D3's quadtree (example) to speed up the search.
Use d3.select('#yourElementId')
For more info check this out: https://github.com/mbostock/d3/wiki/Selections
Is there any way to get text(or any other) layer shadow params in Adobe Photoshop CS5 using ExtendScript for further convertion to CSS3 like text string?
Thanks!
There is a way.
You have to use the ActionManager:
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
var desc = executeActionGet(ref).getObjectValue(stringIDToTypeID('layerEffects')).getObjectValue(stringIDToTypeID('dropShadow'));
desc.getUnitDoubleValue(stringIDToTypeID('distance'))
Where "dropShadow" is the layereffect you want to read and for example "distance" is the parameter that will be returned. Other layereffects and parameters are only known as eventids. Look in the documentation (bad documented) if you need other eventids.
The next AM-Code will check if there is a layerstyle shadow.
var res = false;
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
var hasFX = executeActionGet(ref).hasKey(stringIDToTypeID('layerEffects'));
if ( hasFX ){
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
res = executeActionGet(ref).getObjectValue(stringIDToTypeID('layerEffects')).hasKey(stringIDToTypeID('dropShadow'));
}
return res;
This will explain http://forums.adobe.com/thread/714406 more.
If you find a way to SET the shadow, without setting other params, let me know...
Probably not the answer you're looking for but there is really no way to access the individual properties of layer styles from extendscript. The only method in the API (as of CS6) that references layer styles is ArtLayer.applyStyle(name). You actually have to create a style in Photoshop and save to the palette by name in order to use this.
The only thing I can think of is to actually parse the .asl files found in adobe/Adobe Photoshop/presets/styles/ using C/C++. These files contain several layer styles saved in a proprietary format. I haven't found any libraries to parse these files but they may exist.
If you have Photoshop CS6.1 (or later), you can check out the implementation of the "Copy CSS to Clipboard" feature to see how to access the drop shadow parameters.
On Windows, the source code for this is in
Adobe Photoshop CS6\Required\CopyCSSToClipboard.jsx
On the Mac, the source code is in:
Adobe Photoshop CS6/Adobe Photoshop CS6.app/Contents/Required/CopyCSSToClipboard.jsx
(if you're looking in the Finder on the Mac, you'll need to control-click on the Photoshop app icon and select "Show Package Contents" to get to the Contents/Required folder).
Look for the routine cssToClip.addDropShadow for an example of how to extract the information. If you want to use routines from CopyCSSToClipboard.jsx in your own code, add the following snippet to your JSX file:
runCopyCSSFromScript = true;
if (typeof cssToClip == "undefined")
$.evalFile( app.path + "/" + localize("$$$/ScriptingSupport/Required=Required") + "/CopyCSSToClipboard.jsx" );
Also, at the bottom of CopyCSSToClipboard.jsx, there are sample calls to cssToClip.dumpLayerAttr. This is a useful way to explore parameters you may want to access from your scripts that aren't accessible from the Photoshop DOM.
Be forewarned that code in the Required folder is subject to change in future versions.
I was able to make an ActionPrinter method that dumps out a tree of all the data in an action using C# and the photoshop COM wrapper.
The PrintCurrentLayer method will dump all the data in a layer, including all of the Layer Effects data.
static void PrintCurrentLayer(Application ps)
{
var action = new ActionReference();
action.PutEnumerated(ps.CharIDToTypeID("Lyr "), ps.CharIDToTypeID("Ordn"), ps.CharIDToTypeID("Trgt"));
var desc = ps.ExecuteActionGet(action);//.GetObjectValue(ps.StringIDToTypeID("layerEffects"));//.getObjectValue(ps.StringIDToTypeID('dropShadow'));
ActionPrinter(desc);
}
static void ActionPrinter(ActionDescriptor action)
{
for (int i = 0; i < action.Count; i++)
{
var key = action.GetKey(i);
if (action.HasKey(key))
{
//var charId = action.Application.TypeIDToCharID((int)key);
//Debug.WriteLine(charId);
switch (action.GetType(key))
{
case PsDescValueType.psIntegerType:
Debug.WriteLine("{0}: {1}", (PSConstants)key, action.GetInteger(key));
break;
case PsDescValueType.psStringType:
Debug.WriteLine("{0}: \"{1}\"", (PSConstants)key, action.GetString(key));
break;
case PsDescValueType.psBooleanType:
Debug.WriteLine("{0}: {1}", (PSConstants)key, action.GetBoolean(key));
break;
case PsDescValueType.psDoubleType:
Debug.WriteLine("{0}: {1}", (PSConstants)key, action.GetDouble(key));
break;
case PsDescValueType.psUnitDoubleType:
Debug.WriteLine("{0}: {1} {2}", (PSConstants)key, action.GetUnitDoubleValue(key), (PSConstants)action.GetUnitDoubleType(key));
break;
case PsDescValueType.psEnumeratedType:
Debug.WriteLine("{0}: {1} {2}", (PSConstants)key, (PSConstants)action.GetEnumerationType(key), (PSConstants)action.GetEnumerationValue(key));
break;
case PsDescValueType.psObjectType:
Debug.WriteLine($"{(PSConstants)key}: {(PSConstants)action.GetObjectType(key)} ");
Debug.Indent();
ActionPrinter(action.GetObjectValue(key));
Debug.Unindent();
break;
case PsDescValueType.psListType:
var list = action.GetList(key);
Debug.WriteLine($"{(PSConstants)key}: List of {list.Count} Items");
Debug.Indent();
for (int count = 0; count < list.Count; count++)
{
var type = list.GetType(count);
Debug.WriteLine($"{count}: {type} ");
Debug.Indent();
switch (type)
{
case PsDescValueType.psObjectType:
ActionPrinter(list.GetObjectValue(count));
break;
case PsDescValueType.psReferenceType:
var reference = list.GetReference(count);
Debug.WriteLine(" Reference to a {0}", (PSConstants)reference.GetDesiredClass());
break;
case PsDescValueType.psEnumeratedType:
Debug.WriteLine(" {0} {1}", (PSConstants)list.GetEnumerationType(count), (PSConstants)list.GetEnumerationValue(count));
break;
default:
Debug.WriteLine($"UNHANDLED LIST TYPE {type}");
break;
}
Debug.Unindent();
}
Debug.Unindent();
break;
default:
Debug.WriteLine($"{(PSConstants)key} UNHANDLED TYPE {action.GetType(key)}");
break;
}
}
}
}