How can I get the source of a webpage that is currently running in an instance of firefox using delphi ? I would like to do this without making firefox the active window first if that is possible but just grabbing the source is my primary question.
TIA,
Dave
This might help
How to embed a browser object, other than IE<n>, in a Delphi application
This is about embedding firefox (amongst others) but has lnks to other pages that shows methods that you can navigate the DOM with.
I'd look at using IE if possible it's fairly well documented how to do this in IE.
Obligatory "here's one way, but don't do it" from the ClipBoard guy....
One ugly hack I've seen is to send keystrokes to the app and force it to copy/paste the data to the clipboard. Don't go down this road. It will work, for you, in a controlled environment. It won't work for your users, who will experience compatibility issues, unexpected trashing of their clipboard data, and crashes from other apps that are monitoring the clipboard for updates.
And no, you cannot save/restore the clipboard without causing even more trouble.
Related
I have a Vue.js website with a PDF file which is included in my ultimate javascript bundle via webpack. (It's my CV.) The following build and delivery process has worked perfectly fine for me since 2017, but suddenly stopped working in iOS 14:
Build the PDF with LaTeX.
Use webpack's url-loader to include the PDF in my webpack bundle as a base64 data URI.
Load that URL into a vuex data store, and then just deliver it as a link when clicked.
For the last three years, this has worked fine: I've been able to click on the link and get a working PDF. It's been kind of random and platform-specific whether the PDF opens in-browser or shows up in a download folder, and whether it gets the filename I've asked it to get or not, but, well, that doesn't matter to me. And the core functionality of click the link and get the PDF has worked on every browser and every platform I've ever tried it on.
All of a sudden, with iOS 14, it's stopped working. Now, when I try to activate the PDF link in iOS Safari, nothing happens at all. When I do it in iOS Chrome, it produces a little popup claiming it downloaded a document, but nothing seems to actually be able to open the document. And when I do it in iOS DuckDuckGo, it just displays the base64 data URI in the address bar.
Interestingly, if I take the dataURI that DDG displays in the address bar and copy and paste it into Safari or Chrome on iOS, it actually displays my pdf. So the browsers still have the capacity to display a PDF from a data URI. It just doesn't want to do so from my link.
And my site still works as expected on the desktop. Including in Safari on the desktop. Also, it still works on my wife's phone (she's still on iOS 13). So this is clearly something Apple changed in iOS 14. But what? And how to get my site working again?
I'm guessing that Apple has changed the behavior of the renderer in iOS in some fashion to cause it to break across browsers but nowhere else (since browsers in iOS are all still required to rely on webkit, right?)
This is a pretty important feature to me. I made this decision deliberately for perceived performance---combined with pre-rendering, everything on my site, including the PDF, loads very close to instantly from the user perspective. So I'd really like to keep it.
I'm using Webpack 2.6.1 and Vue 2.3.3. This is a stable build that has been working flawlessly for three years, so I haven't felt the need to update anything except for security updates.
After searching around, I did find this Apple dev discussion which suggests that in iOS 14, Apple newly blocks redirects to data URIs. But I'm not doing a redirect, I'm actually navigating directly to the URI through a link. And the linked discussion suggests that the newly banned behavior just brings Apple in line with what other browsers already ban---but my code works in every other browser, so that can't be it.
Relevant code, to the extent it matters (though it's so basic and obvious that I doubt a simple code fix will be the answer here):
from my webpack.base.js:
{
test: /\.(pdf)$/,
loader: 'url-loader'
},
from my vuex store, in state.js
import cvURL from './assets/pdf/gowdercv.pdf';
from the component containing the link that points to PDF:
<p><a :href="cvURL" download="gowdercv.pdf"><img src="../../assets/icons/file-pdf.svg" class="cvicon"> Download in PDF</a></p>
which is loaded as a computed property to the component, i.e.,
computed: {
cvURL: function(){return this.$store.state.cvURL;},
Does anyone know how to get functionality back in iOS? Is there a workaround built in recent versions of webpack or vue for this? Thanks!
Update: after some help off SO, an acquaintance turned up this similar problem, which also came up with a solution: turning the base64 URI into a blob and passing that data url. Which also solves my problem. Though that SO doesn't have an accepted answer, so I can't vote to close my own question as a duplicate, alas.
i am faced with a huge problem. I have been developing a website since many days now. I have a style1.css which i use through dream weaver. today morning i was starting work on a new page and i by mistake linked an old style1.css from another website folder into my current HTML/JSP page(that i started work on today) and i continued everything. It got saved and the latest style1.css got replaced by the older one and got updated. This is screwed up eveything, and i dont have a backup because i never made such a blunder ever and the file that i linked was from an older backup. I didnt know. Now i have an old Reg.html(the proper one) page open in my Opera browser. What i want to do is copy the css and HTML from the browser itself from memory. Because if i view source and click on my linked CSS file, it shows the current(wrong one) and also the HTML source maybe wrong. I have replaced about 3-4 days of work, i cannot afford to rework, so if there any way i can extract html and css from an opened page from memory. (what i am saying is that if i refresh, my work is gone, so i havent refreshed it and carefully trying to extract out.) I tried recuva file recovery software locally, in my css folder, but it doesnt work. in windows previuos versions also there is nothing. In dreamweaver is there any backup mechanism from which i can restore it? I think my only option is to extract from opera. Is there any software or mechanism i can use to do that? or do i have to work again. The latter means that i have to do all the work again on multiple pages. Please help me! :(
I use TEmbeddedWB (internet explorer activex) in my projects.
I want to prevent people from uploading files:
ex: goto gmail.com and then attch a file: Internet explorer opens the upload file windows that allows people to access local disk.
Is there a simple way to prevent this windows from being displayed ?
Regards
It sounds like you are trying to "sandbox" your app so that your users cannot access the local file system. Perhaps you're building an app that is hosted on Citrix with multiple users, and if one of them "breaks out" of the app, they can run rampant through the file system on the server.
I don't know if there is a simple answer to this particular question, but I recommend that you look at the total problem before trying to solve the individual issues, as you may find that there are just too many. For instance, in the browser ActiveX, you can also "view source". That probably opens Notepad on the server. From there, you can run rampant. Do you have CHM help? From the help window, you can also access the "open file" dialog. Do you allow the user to open/save files through your regular menus? Same issue. How about hyperlinks? If your About box has a hyperlink, that's an easy way to pop open a browser. Can the user enter an address for browsing in your embedded ActiveX? If so, can they enter things like: C:\WINDOWS\system32\cmd.exe
You could decouple the navigation, do it yourself, sanitize the HTML then display the sanitized version. Unfortunately you would have to do this for ALL resources and would need to handle the numerous JavaScript libraries. For basic HTML, look for <input type="file". This would at least catch the basic usage, but not the more advanced usage.
A simpler solution might be to limit what URL's the browser can navigate too and only allow URL's you know are safe.
Assuming you don't want them to browse the local machine, if you solve the "open file" problem the same issue exists if you have a "save file" dialog. You may have to close those loops by replacing the browser popup menu with one that does not have any "Save x As..." options.
I am trying to create an application to print documents over the web. I have created my document, and made a web page with a meta refresh tag, along the lines of this:
<meta http-equiv="refresh" content="3;http://example.com/download.epl2" />
I specify that the document has a content-type of application/x-epl2, and I have associated .epl2 files on my computer with a program that silently sends them to the printer.
I have put the website into my trusted sites zone.
Currently Internet Explorer pops up the "Open, Save, Cancel" dialog box with no option to automatically open the file.
Is there a setting in IE6/7/8 that I can use to have IE just open the file without prompting?
EDIT
The actual content of the file will differ based on the job, but essentially it is text that follows the Eltron Programming Language.
EDIT
I have accomplished this in both Chrome and Firefox by choosing "Automatically Open Files Of This Type From Now On"
EDIT
The machines this program will be used on will effectively be kiosks that are limited to only accessing my website from their web browsers, so I'm not worried about rogue websites sending documents to my printers.
EDIT
I am using PHP to generate the documents and HTML on the server side, though I expect the solution to be language agnostic.
I would expect that not to be possible, because then you could stumble onto a site that automatically loads and prints a 5000 page document or something, which would not be good.
If you always had a secret desire to develop a custom URL protocol (I know I do), this might be a good excuse to do it. ;-)
http://msdn.microsoft.com/en-us/library/aa767914%28VS.85%29.aspx
There are 1-2 prompts when opening such a link for the first time in IE, but you can choose to automatically open them after that.
I would use javascript to make this happen.
Javascript Window Open
EDIT
Since you have control of the windows box you could use an automate script process to interact with the print window.
autoit3: ControlClick
Write a small utility program that does nothing but send the file passed to it on the command-line to the default system printer.
Then, edit the registry under HKEY_CLASSES_ROOT to associate this program with the .epl2 filetype.
I don't have time to investigate it for You, but there were lots of exploits that could be helpful. Using ie6 without certain fixes seems helpful.
Also there should be an option called "Automatic prompting for file downloads". I use Linux nowadays so I can't chceck if it helps. I found it in some docs.
I'm on a Mac at the moment, but if this is possible in IE I would imagine this page holds the answer to it (or at least hints at it) http://support.microsoft.com/kb/883255
I believe what you're looking for is a setting in Windows, not IE:
Microsoft Support: Not Prompted to Specify Download Folder for File
Try using an older version of IE. Security was looser in the older versions and since it's a non-issue, this could be the quickest solution.
I have this idea for a imageshack style photo uploading service where you can paste a printscreen and then crop it in your browser. Is it possible to take the image from the clipboard into the browser?
I don't believe it is.
By default, most browsers do not allow Javascript to access the clipboard -- for instance, what if you pasted in your password to log in to a site, then someone injected a script that read the same password you use on all your sites?
Trephine is a library for browser clipboard access, and even they claim to only grab text. Moreover, I'm halfway sure that the OS decides whether to paste anything into a given application (you can't paste a screenshot into Notepad AFAIK).
So like that link in the comments above, you might have to go Java or Flash for this. It looks like AIR might let you read images from the clipboard?
No, to my knowledge it is not possible to access bitmaps from the clipbpoard. That's why at Aviary.com we built or own Firefox and Chrome extension called "Talon" to allow this kind of access: http://aviary.com/launch/talon - our Flash applications can talk via Javascript to the extension and get access to the bitmaps.