I am new in javascript. What I am trying to do is:
write a script which will read an php or txt file, take the info (a number), and replace it on the page like a banner. It will be something like a rating, and the number of this rating will be taking on the local machine.
I need some script which will work with most of browsers.
Thank you for your help!!!
Only Internet Explorer supports this via ActiveXObject. You can access the file system using ActiveXObject and then read the file.
See http://msdn.microsoft.com/en-us/library/2z9ffy99(v=vs.84).aspx
Sample Code:
function ReadFiles()
{
var fso, f1, ts, s;
var ForReading = 1;
fso = new ActiveXObject("Scripting.FileSystemObject");
f1 = fso.CreateTextFile("c:\\testfile.txt", true);
// Write a line.
Response.Write("Writing file <br>");
f1.WriteLine("Hello World");
f1.WriteBlankLines(1);
f1.Close();
// Read the contents of the file.
Response.Write("Reading file <br>");
ts = fso.OpenTextFile("c:\\testfile.txt", ForReading);
s = ts.ReadLine();
Response.Write("File contents = '" + s + "'");
ts.Close();
}
Related
I have been looking for an example of how to call a trusted function in acroforms and havent found any. I am trying to build a form for my company that will allow users to click a button and automatically have the form save to a folder on our server (eg: //SERVER1/Forms/). I found this code to test with and placed it in C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Javascripts
//SaveAs Function1
var date = new Date();
var day = date.getDate();
var month = date.getMonth()+1;
var year = date.getFullYear();
var dateSigned = String(month) + String(day) + String(year);
var mySaveDoc = app.trustedFunction(function(doc,fileNamÂe){
app.beginPriv();
var myPath = "C/test/" + fileName + "Agreement " + dateSigned + ".pdf";
//saveAs is the only privileged code that needs to be enclosed
doc.saveAs({cPath: myPath, bCopy: true, bPromptToOverwrite: false});
//doc.close();
app.endPriv();
});
Any help on making this work is greatly appreciated!!
I think the location of the application level script is correct; check whether you have other files in that folder; one of them would be a precompiled one, coming from Adobe.
Now, for calling the trusted function, well…, call it as you would call any other function:
mySaveDoc(this, fileName) ;
and that should do it.
However, there are a few issues I don't like that much in the application-level script:
The dateSigned variable and its bits and pieces will be defined and initialized when the application starts, and then keep their value. In other words, if you keep Reader running all the time, the date will not be updated. To get the current date all the time, you'd have to initialize the dateSigned variable within the function. AND, as you are in Acrobat JavaScript, you can use the util object for assembling the string.
Your script would then look like this:
var mySaveDoc = app.trustedFunction(function(doc, fileName){
app.beginPriv() ;
var dateSigned = util.printd("MMDDYYYY", new Date() ;
var myPath = "/C/test" + filename + "Agreement " + dateSigned + ".pdf" ;
doc.saveAs({cPath: myPath, bCopy: true, bPromptToOverwrite: false}) ;
app.endPriv() ;
}) ;
Note that there is als a slash at the beginning of the path (although I may be wrong on that; as I don't have access to a Windows machine, I can not verify it; if someone else would use Acrobat, open any file, and then run this.path() from the Console, then he could confirm the slash (or not)).
I have create an HTML application located on my computer, I use it with Firefox.
I need that this Html page reads and write on a simple txt file on my computer.
Preferably using only html/JS
Here's a definite solution
var txtFile = "c:/test.txt";
var file = new File(txtFile);
var str = "My string of text";
file.open("w"); // open file with write access
file.writeln("First line of text");
file.writeln("Second line of text " + str);
file.write(str);
file.close();
You may want to check out this documentation:
http://www.roseindia.net/javascript/javascriptexamples/javascript-write-to-text-file.shtml
That should help you get started.
I was looking all over the web how i can get the file size on the client side
so i found a few examples
the first example was
$(this)[0].files[0].fileSize
but unfortunately it does not working in ie
so i found this example
function getSize(){
var myFSO = new ActiveXObject("Scripting.FileSystemObject");
var filepath = document.upload.file.value;
var thefile = myFSO.getFile(filepath);
var size = thefile.size;
alert(size + " bytes");
}
which is suppose to work in ie but i heard it has security problems and i don't know if it work in all browsers..
so , i need to know what i can use in javascript client side to get the file size..
e.g : file from input type file
thank you for helping.
JavaScript cannot access any information about local files. This is done deliberately for security reasons.
ActiveXObject("Scripting.FileSystemObject"); is an IE-only construct and will not work across browsers.
EDIT: I'm trying to read all the files in a specific folder and list the files in there, not read the content of a specific file. I just tried to simply create an FileSystemObject and it doesn't do anything either. I show an alert (which pops up) beforfe making the FileSystemObject, and one after it (which isn't shown). So the problem is in simply creating the object.
Original:
I am trying to read all the files in a folder by using JavaScript.
It is a local HTML file, and it will not be on a server, so I can't use PHP I guess.
Now I'm trying to read all the files in a specific given folder, but it doesn't do anything on the point I make a FileSystemObject
Here is the code I use, The alert shows until 2, then it stops.
alert('1');
var myObject, afolder, date;
alert('2');
myObject = new ActiveXObject("Scripting.FileSystemObject");
alert('3');
afolder = myObject.GetFolder("c:\\tmp");
alert('4');
date = afolder.DateLastAccessed;
alert("The folder"+name+" is a temporary folder.");
Am I doing this the right way?
Thanks!
The method I found with a Google search uses HTML5 so if you are using a modern browser you should be good. Also the tutorial page seems to check if the browser you are using supports the features. If so you should be good to follow the tutorial which seems pretty thorough.
http://www.html5rocks.com/en/tutorials/file/dndfiles/
This solution only works on IE11 or older since it is MS based
<script type="text/javascript">
var fso = new ActiveXObject("Scripting.FileSystemObject");
function showFolderFileList(folderspec) {
var s = "";
var f = fso.GetFolder(folderspec);
// recurse subfolders
var subfolders = new Enumerator(f.SubFolders);
for(; !subfolders.atEnd(); subfolders.moveNext()) {
s += ShowFolderFileList((subfolders.item()).path);
}
// display all file path names.
var fc = new Enumerator(f.files);
for (; !fc.atEnd(); fc.moveNext()) {
s += fc.item() + "<br>";
}
return s;
}
function listFiles() {
document.getElementById('files').innerHTML = showFolderFileList('C:');
}
</script>
<input type='button' onclick='listFiles()' value='List Files' />
<div id="files" />
I have a script CustomAction (Yes, I know all about the opinions that say don't use script CustomActions. I have a different opinion.)
I'd like to run a command, and capture the output. I can do this using the WScript.Shell COM object, then invoking shell.Exec(). But, this flashes a visible console window for the executed command.
To avoid that, I understand I can use the shell.Run() call, and specify "hidden" for the window appearance. But .Run() doesn't give me access to the StdOut of the executed process, so that means I'd need to create a temporary file and redirect the exe output to the temp file, then later read that temp file in script.
Some questions:
is this gonna work?
How do I generate a name for the temporary file? In .NET I could use a static method in the System.IO namespace, but I am using script here. I need to insure that the use has RW access, and also that no anti-virus program is going to puke on this.
Better ideas? I am trying very hard to avoid C/C++.
I could avoid all this if there were a way to query websites in IIS7 from script, without resorting to the IIS6 Compatibility pack, without using .NET (Microsoft.Web.Administration.ServerManager), and without execing a process (appcmd list sites).
I already asked a separate question on that topic; any suggestions on that would also be appreciated.
Answering my own question...
yes, this is going to work.
Use the Scripting.FileSystemObject thing within Javascript. There's a GetTempName() method that produces a file name suitable for temporary use, and a GetSpecialFolder() method that gets the location of the temp folder. There's even a BuildPath() method to combine them.
so far I don't have any better ideas.
Here's the code I used:
function GetWebSites_IIS7_B()
{
var ParseOneLine = function(oneLine) {
...regex parsing of output...
};
LogMessage("GetWebSites_IIS7_B() ENTER");
var shell = new ActiveXObject("WScript.Shell");
var fso = new ActiveXObject("Scripting.FileSystemObject");
var tmpdir = fso.GetSpecialFolder(SpecialFolders.TemporaryFolder);
var tmpFileName = fso.BuildPath(tmpdir, fso.GetTempName());
var windir = fso.GetSpecialFolder(SpecialFolders.WindowsFolder);
var appcmd = fso.BuildPath(windir,"system32\\inetsrv\\appcmd.exe") + " list sites";
// use cmd.exe to redirect the output
var rc = shell.Run("%comspec% /c " + appcmd + "> " + tmpFileName, WindowStyle.Hidden, true);
// WindowStyle.Hidden == 0
var ts = fso.OpenTextFile(tmpFileName, OpenMode.ForReading);
var sites = [];
// Read from the file and parse the results.
while (!ts.AtEndOfStream) {
var oneLine = ts.ReadLine();
var line = ParseOneLine(oneLine);
LogMessage(" site: " + line.name);
sites.push(line);
}
ts.Close();
fso.DeleteFile(tmpFileName);
return sites;
}