I'm using CasperJS to download a file. I need to extract the filename from the HTTP Response headers (i.e. Content-disposition: attachment;filename="pronk.txt"). There is no way to determine the filename from the URL itself (points to a database hash) or the hyperlink (just says "click here").
CasperJS has a great built-in download() function, however it requires a user-supplied filename. This parameter is not optional, and the download fails without it.
Is there another way to go about this where I can get the file data AND the HTTP headers?
Related
In ColdFusion I have code to open or download a file:
<cfif FileExists('#session.exploc#/#attname#')>
<cfset typeatt = FilegetMimeType('#session.exploc#/#attname#')>
<cfheader name = "Content-Disposition" value="attachment;#session.exploc#/#attname#">
<cfcontent type="#typeatt#" file="#session.exploc#/#attname#">
</cfif>
This gives a standard open/download window.
I would prefer a window which just allows the user to open the file, and does not provide a download. Is there a way to do that?
Alternatively, I am happy to open the file in the browser, but since I don't know the filetype in advance I'm not sure how to do that.
This is not a function of <cfcontent> per-se. All <cfcontent> handles is the MIME-type of the response, the content of it (it can reset it for example), and a few other bits and pieces. It's all about the nature of the content returned by the CFML server.
This is all fairly clear in the docs for <cfcontent>:
Some file types, such as PDF documents, do not use executable code and can display directly in most browsers. To request the browser to display the file directly, use a cfheader tag similar to the following:
<cfheader name="Content-Disposition" value="inline; filename=name.ext">
IE: what you want to be doing is to set the Content-Disposition header with a value of inline to tell the browser to potentially inline the document, if if has the capabilities to do so.
I want to read the content of a .txt file from a URL.
The .txt file content is:
170000082.zip
I am currently using this:
Dim address As String = "http://linktotxt"
Dim client As WebClient = New WebClient()
Dim reader As StreamReader = New StreamReader(client.OpenRead(address))
Label1.Text = reader.ReadToEnd
But it set Label1.Text value to a HTML code and not the content of the txt file.
I do not want to download the txt file locally then read the text of it, I want to get it from the URL.
Any help would be appreciated!
EDIT: Here is the HTML file content:
<html><body><script type="text/javascript" src="/aes.js" ></script><script>function toNumbers(d){var e=[];d.replace(/(..)/g,function(d){e.push(parseInt(d,16))});return e}function toHex(){for(var d=[],d=1==arguments.length&&arguments[0].constructor==Array?arguments[0]:arguments,e="",f=0;f<d.length;f++)e+=(16>d[f]?"0":"")+d[f].toString(16);return e.toLowerCase()}var a=toNumbers("f655ba9d09a112d4968c63579db590b4"),b=toNumbers("98344c2eee86c3994890592585b49f80"),c=toNumbers("b8ff12f43c40961786132a275820f477");document.cookie="__test="+toHex(slowAES.decrypt(c,2,a,b))+"; expires=Thu, 31-Dec-37 23:55:55 GMT; path=/"; location.href="http://I_REMOVED_IT_SORRY/lastfilename.txt?i=1";</script><noscript>This site requires Javascript to work, please enable Javascript in your browser or use a browser with Javascript support</noscript></body></html>
Thanks! :-)
When you visit that address in your browser, the web server first returns html, not a text file. What you're seeing is exactly what you should see after downloading the contents of that address. This html then tells the browser to also download and run some additional javascript (aes.js). It's this javascript that will finally download your text file.
You need to look at the the javascript or monitor your session using your browser's dev tools and find the real address for the text file (possibly http://I_REMOVED_IT_SORRY/lastfilename.txt?i=1).
OK, The same code worked on my new server :-)
Everything is solved now, it was a server problem.
I have an MHT (Microsoft web archive) file that I have added to my project folder. I need this file to display in a WebView on a help page. I have set the file's build action to "Content," like this question reccomended. I then use this code in the page's Loaded event handler.
Try
Dim strHelpNavigate = Path.Combine(Windows.ApplicationModel.Package.Current.InstalledLocation.ToString(), "\MyAppsHelp.mht")
webHelp.Navigate(New Uri(strHelpNavigate))
Catch ex As Exception
webHelp.NavigateToString("<html><head><style>body {font-family: segoe ui; color: white; background-color: black;}</style></head><body><h2>Sorry, the help page is currently unavailable.</h2></body></html>")
End Try
This code produces an exception: {"Invalid URI: The format of the URI could not be determined."}
I have also tried passing "\MyAppsHelp.mht" to the Navigate method like this question reccomended, but this produces the same exception, and I see from the Local window that the string passed to the Navigate method is the same either way.
Does anyone have any advice on how to display this file in the WebView?
WebView does not natively support HTML archive files, but you can do the work convert these files to html + images if you're so inclined.
Open the .mht file in notepad, and you'll see that there are separate sections for each part of the HTML file - you can parse these sections to get the HTML out, then the base64 encoded images, then save them in your local app folder and use WebView.NavigateToLocalStreamUri to load them. See http://blogs.msdn.com/b/wsdevsol/archive/2014/06/20/a-primer-on-webview-navigatetolocalstreamuri.aspx for details on how to use this method.
OF course, if it's a static file that you will be using all of the time, it would be far easier to just convert it before packaging the app.
I have a form with a file input:
<input type="file" id="uploadFile" name="uploadFile" />
I submit the form using the ajaxForm method of the JQuery form plugin.
Then, in the code to handle the post, I read and process the file. I use cfspreadsheet to read the file directly from the file input field:
<cfspreadsheet
action="read"
src="#form.uploadFile#"
sheet="1"
query="spreadsheetData"
headerRow="1"
excludeHeaderRow="true"
>
This all works correctly.
I decided that I want to email the spreadsheet to the administrator as well. I thought I could accomplish this simply with a cfmail tag that includes the following cfmailparam tag:
<cfmail to="myEmailAddress#email.com"
from="fromEmail#email.com"
subject="Upload File" type="HTML">
<cfmailparam file="#form.uploadFile#" />
File processed successfully
</cfmail>
However, this is not working correctly - the email is not sent. What am I doing wrong?
Leigh's solution works well and you have probably already implemented in your code. I thought I'd put my 0.02 cents in about why this is a problem to begin with.
When you upload a file the file is placed in a temp folder location. If you do nothing with the file to put it in a final destination the file is deleted - probably at the end of your request.
Meanwhile the cfmailparam does not actually attach the file at runtime. It leaves it to the spooler process to do that. If you take a look in your ColdFusion installs "mail/spool" directory you will see a file with .cfmail extension. If you can't "catch" one before delivery check your undeliverable folder - there's bound to be a few hanging around in there.
The .cfmail file serves as an instruction to the spooler service which sends the mail. It has a subject, from, to, server address, body etc.
If you attach a file you will see something at the bottom of this file that looks like this:
file: D:\jrun\temp\blah.tmp
file-type: application/octet-stream; name="I am the file you uploaded.tmp"
file-disposition: attachment
remove: false
At runtime CF grabs this file and does what Leigh is suggesting - places it as binary with a mailpart (base64 encoded) into the main body of the message. So what is happening is that by the time the spooler service gets around to attempting to open and attach this file the file is long gone because the request has ended. I also think that the file exists with a ".tmp" extension in this temporary directory - which is obviously not what you want to attach (but that could be a previous version of CF).
To fix it, first use cffile with the "upload" action to put the file in a real (instead of temporary) folder on the disk. Then use cfmailparam to attach the file. NOTE: The "remove" attribute set to yes will cause CF to delete the file once it has successfully sent the mail - which is the effect I believe you are looking for.
I have a selenium test I am creating. The application creates a pdf for the user. I want to know how to test that a url returns a pdf file. I don't really care what is in the pdf, just that one got created.
FYI - The url does not container .pdf
http://www.url.com/printp/something.php?pld=b8eiub9w6ar2am1i
Alternatively, make a HEAD request first to check if the url is created, then inspect content_length header, which should be nonzero size, or whatever is reasonable minimum size in your case.
Can you test if //meta[contains(#http-equiv,Content-Type)][contains(#content,pdf)] exists!
I did not test !