My program needs to monitor all websites that are visited when the program runs.
I've been found some ways to do it and I'm wondering which way thats "best" (with best I mean, easiest to implement and offering the best performance). The program is to newer versions of windows only! It should work on both x86 and x64.
The browsers that I need to be able to monitor is IE, FireFox, Chrome and Opera.
I could watch the history files of each browser, but this would be a pretty bad way to do it (newer versions of the browser could make the code stop working etc)
I could check every window (HWND) and see if its a browser that visits a website... But is this really a good way to do it? If so how to I do it? Links or code snippets thanks :)
I could use a packet sniffer, but that would be kinda overkill if I just want the urls...
A proxy wouldn't be a good solution (Am I right?) because it would slow the browsing down (I think so at least)...
Or could I do it some other way thats better?
Since you need to handle multiple browsers, a proxy solution is going to be the most robust way to go about it - and if designed properly, shouldn't incur too much overhead. Packet sniffing is imho too complex.
You might be able to hack something specific togeher that supports your current versions of currently desired browsers, but do note theword "hack", and add in "maintenance nightmare" to the mix.
Also, you might want to rethink your tags - the qeustion doesn't really have much to do with .net, vc++ or vstudio - it's likely going to require the win32 api, though :)
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For some time now I've been tossing around what I think is am awesome idea: I want to write essentially a C++ phone server to handle all of my incoming calls on a land-line. I'll have a white-list (yay never having to worry about telemarketers ever again!), a black-list, and will be able to access my phone using my gaming headset, allowing me to make/answer calls while I'm gaming or whatever. In the future I'd also like to hook it up to a gui and make it have pop-ups and other cool features.
The problem is, I have no idea where to start. I'm familiar enough with C++, but have no idea how to go about doing anything with a phone-line. I can plug a phone-line into my computer, but I have no idea how to get my program to be able to use that connection. There's WinSock2 for being able to use my ethernet connection, is there something similar I'd be able to use to use the phone line? As it's using the same ethernet jack, I wonder if it's even possible to use WinSock2 to use the phone-line?
I saw this post, which wasn't particularly helpful: stackoverflow link , which points out Dual-tone multi-frequency signaling. I stumbled across this site: link, but isn't really going to help me get started.
So I was wondering, is there some sort of library out there that would allow me to tap into a phone-line that's connected to my computer? Is there a standard somewhere out there concerning phone-lines and what the different combinations of tone's mean? Can anyone here help get me started? I realize it's somewhat of a big undertaking, so any push in the right direction would be greatly appreciated. Thanks.
[Update:]
I found this question, which is a step in the right direction, but I'm not sure yet if it helps me (I need to go to bed, and will take a look at it in the morning). I did see mention of a Microsoft Telephony API though, I'll try doing more research on that tomorrow.
If working with MS products is not an absolute necessity, you might also consider taking a shot at Asterisk. This is an open-source PBX (in software) that allows development on Linux, Windows (emulated) and Mac. At the company where I work, we use it for implementing small-scale exchanges, about a 100 lines or so. It also interfaces well with VoIP and allows a whole host of protocols. I have developed scripts and programs in C++ that work on voice packets in real-time, and so far, my experience has been good. As for your stated use-case of blocking telemarketers etc., this would be a very good fit. Check out further details here.
After doing more research, having one link lead to another link, and coming up with new search terms, I stumbled across this site that looks like it could kick me off using the Windows Telephony API in C++: link. This link includes open source c++ samples showing how to do the basics of what this question asks, I'll just have to test to see if they actually still work.
This is only the beginning of my research, so I'll keep you posted on any other findings. If anyone else is knowledgeable in this area, please still feel free to drop me information on what I want to accomplish.
in the MFC application I am working on, I need to have an Internet Explorer (we are using the component CHtmlView) displayed, currently we are able to change the rendering mode the IE works in by using the FEATURE_BROWSER_EMULATION registry keys. However that only allows us to change the rendering mode of all the CHtmlView instances in the application, plus to apply that change, we must restart the application.
The problem is, we would like to have more than one version of the IE displayed side-by-side in our application. I know that it is possible to get multiple IE versions on one computer, but I'm not sure, how to get them all in one application.
We have some ideas, how to solve this problem, but they are not really a trivial solutions, so I want to ask for your ideas. Anyway, here is what we've come up with:
Download the source code of the page, add the document compatibility tag, change all the addresses in the document to the absolute ones, and save this page to the disk. Then reload the page from the disc with the IE. This solution works only partially, because although it makes IE to use the correct rendering mode, the page fails to load some of the resources, because it is in the different location than the original - the addresses we had changed works well, but for example the JavaScript generated ones doesn't. And this solution is generally very messy, so we had dropped that.
Use multiple processes - each IE version would have it's own executable/dll library, we use the browser emulation feature on each executable, and then somehow glue this into one application (I admit, I have no idea how, as I've never used multiple processes with windows/MFC). But I don't know, if that solution would even work...
Create a proxy for our application, that will change the downloaded source code in a similar way as the solution 1 presents - it will add the document compatibility tag, to force the IE into the desired mode, but it can leave the addresses intact, as the IE would see the source as coming from the original location. This solution seems to me like the safest one, but like with the 2. solution, I don't know how to make a proxy layer for our application, and more importantly, how much time would it take.
So do you have any ideas on how else could this be solved? If the solution uses something other than CHtmlView, so be it, we can always change that.
As for the IE versions, we would like to have, it would be nice to support IE6, but it is not necessary, the lowest required version is IE7.
Thanks ahead for your time, any ideas would be appreciated.
In the end I have solved this by using
our own proxy server (implemented using boost asio), and modifying the http request/response headers to force IE into the correct compatibility mode.
several executables with unique names, with the compatibility mode set in the registry. Each browser version ran in a separate process.
As it turned out, the proxy server solution didn't always work as expected. The multi-process solution did work as intended, but in the end, the emulated browsers didn't always work as the real browsers, and the whole solution wasn't 100% reliable.
I hope this will help someone in the future.
I think I just realized how restrictive my web host is when they wouldn't let me use cfdump. This actually kind of angers me, cause really, what harm is dump going to do? Anyway my question is has anyone written a cfdump alternative that will kick out complex types of data or can link me to a site with a code example? Can't really used cfc's or udfs either cause guess what, they're blocked too. Anyway looking for something simple that I can just paste in my cfml and I will be happy. It's sad that I used to be able to do this, but have forgotten a lot of that skillset since I moved into Flex and AS.
oh and they're using cf7, so no cf8 or 9 tricks ;-)
Thanks in advance.
You probably don't want to hear "Change to another hosting company" but if they're that restrictive, you're really limited in what you can do. I've actually never heard of a host that blocks cfdump although I know of a few that still, stupidly, block createObject().
Depending on exactly what they've blocked, you may be able to copy WEB-INF/cftags/dump.cfm from your local ColdFusion installation to a folder inside your application and then invoke it with cfmodule:
<cfmodule template="dump.cfm" var="#something#"/>
#Sean Corfield is right -- switch hosts.
In the meantime, there was a custom tag called "cf_dump" from the era of CF4. I have no idea if it will work on 7, but you could always try to get it working.
cf_dump at Adobe
In case anyone else comes across this old thread as I have just done, do not blindly following to the advice of "change your host", as this is very poor advice. make the effort to speak with your host before jumping to conclusions.
The host have likely not blocked cfdump they have blocked Java, which is a good thing as this means they take security seriously. CFdump uses java, thus why it does not work.
Allowing Java in CF is a very serious security issue as it completely bypasses all security sandboxes and without giving too much away basically means that any other customer on the same server could hack your site and steal your data as well as hacking/crashing ColdFusion itself.
Unfortunately blocking java does disable quite a lot of useful features and breaks most frameworks, so it is a toss up between functionality or security, so bear this in mind before you decide to go and find a host that enables everything and has no security.
At the end of the day if you want access to all of ColdFusion's functionality then you need your own server or VPS.
I've actually been looking for this for some time and today I actually stumbled across the solution. Unfortunately, I didn't come up with this. Thanks and credit goes to John Whish.
http://www.aliaspooryorik.com/blog/index.cfm/e/posts.details/post/using-onerror-method-of-application-cfc-47
Basically he's figured out most of the CFDump data can be called in the Application.cfc onError function.
What is best way for making a draw panel in a web page. I would like to know how to develop something very simple,for example little panel where users can draw a signature.
This is great example drawhere.com, but I need something way simpler.
Thanks
Whilst Zifre's answer is valid in one sense, I would be very weary of the <canvas> tag, at least at the moment, due to there not being fantastic support for it (as many browsers don't yet fully support HTML5).
Some browsers support it (most notably Firefox and anything running on Webkit), but swathes of others don't (especially older browsers). It's perhaps better to go for a more universal solution (though, by no means completely universal), and use something like Flash.
The easiest way to do this is probably with the <canvas> tag and some JavaScript. Here is a really simple example to get you started. You can add more functions for things like circles, boxes, etc.
I'm sure somebody has already made something like this that you could use, but I couldn't find any.
So I understand that there are a few options available as far as parsing straight XML goes: NSXMLParser, TouchXML from TouchCode, etc. That's all fine, and seems to work fine for me.
The real problem here is that there are dozens of small variations in RSS feeds (and Atom feeds too), so supporting all possible permutations of feeds available out on the Internet gets very difficult to manage. I searched around for a library that would handle all of these low-level details for me, but came out without anything.
Since one could link to an external C/C++ library in Objective-C, I was wondering if there is a library out there that would be best suited for this task? Someone must have already created something like this, it's just difficult to find the "right" option from the thousands of results in Google.
Anyway, what's the best way to parse RSS/Atom feeds in an iPhone application?
I've just released an open source RSS/Atom Parser for iPhone and hopefully it might be of some use.
I'd love to hear your thoughts on it too!
"Best" is relative. The best performance you'll need to go the SAX route and implement the handlers. I don't know of anything out there open source available (start a google code project and release it for the rest of us to use!)
Whatever you do, it's probably a really bad idea to try and load the whole XML file into memory and act on it like a DOM. Chances are you'll get feeds that are much larger than you can handle on the device leading to frequent memory warnings and crashes.
I'm currently trying out the MWFeedParser #Michael Waterfall is developing.
Quite easy to set up and use (I'm a beginner iPhone developer).
His sample code for using MWFeedParser to populate a UITableViewController implementation is helpful as well.
take a look at apple's XML Performance sample -- which points to using libXML directly -- for performance and quicker updates to the display. Which may be important if you are working with very large feeds.
Check out my library for parsing Atom feeds, (BSAtomParser) at GitHub. It doesn't care about validating the feed, it does its best at returning whatever is valid. The parser covers most of RFC 4287, even extensions.
Here's my solution: a really simple yet powerful RSS parsing library: https://github.com/H2CO3/RSSKit
Have you looked at TouchCode yet? I don't think it has an RSS processor, but it might give you a start.
http://code.google.com/p/touchcode/
I came accross igasus project on sourceforge today. I haven't used it or really checked it, but perhaps it might help.
From their site:
igagus is a web service for the iPhone that allows aggregation of RSS to be delivered in an iPhone friendly format.
Actually, I was trying to suggest you ask on the TouchCode discussion board, because I remember someone was trying to expand it to support RSS. That might be a decent starting point. But I was being rushed by my wife.
But I see now that TouchCode doesn't have a discussion board. I'd still ask the author, though, he might know what came of that effort.
This might be a reasonable starting point for you. Atom support isn't there yet, but you could help out?