What is the difference between:
Msxml2.DOMDocument
Msxml2.XMLHTTP
? And of course, the other question is which one will work best for my purpose as described below?
The context is this - I have code that makes many calls to retrieve web pages. I am looking for the most efficient object for this task. For example, something like this:
Dim oXmlHttp : Set oXmlHttp = CreateObject("MSXML2.XMLHTTP")
oXmlHttp.Open "GET", sUri, False
oXmlHttp.Send
If Err Then
getWebPage = "ERROR - could not get the source text of the webpage."
Exit Function
End If
sResponse = oXmlHttp.responseBody
This seems to work the same way if I create an object using:
Dim oXmlHttp : Set oXmlHttp = CreateObject("MSXML2.XMLHTTP")
Can anyone explain or point me to a reference that clearly outlines the differences (and intended usages) for each of those?
If you want to learn more about MSXML, these links may help:
http://msdn.microsoft.com/en-us/library/aa468547.aspx
http://msdn.microsoft.com/en-us/library/windows/desktop/ms766487(v=vs.85).aspx
In short, XMLHTTP is used to retrieve information, while DOMDocument is used to structure and parse it.
This page explains it better: http://msdn.microsoft.com/en-us/library/windows/desktop/ms760218(v=vs.85).aspx
DOMDocument "Represents the top node of the XML DOM tree." while XMLHTTP "Provides client-side protocol support for communication with HTTP servers."
Related
I want to examine http requests in an extension for firefox. To begin figuring out how to do what I want to do I figured I'd just log everything and see what comes up:
webRequest.onResponseStarted.addListener(
(stuff) => {console.log(stuff);},
{urls: [/^.*$/]}
);
The domain is insignificant, and I know the regex works, verified in the console. When running this code I get no logging. When I take out the filter parameter I get every request:
webRequest.onResponseStarted.addListener(
(stuff) => {console.log(stuff);}
);
Cool, I'm probably doing something wrong, but I can't see what.
Another approach is to manually filter on my own:
var webRequest = Components.utils.import("resource://gre/modules/WebRequest.jsm", {});
var makeRequest = function(type) {
webRequest[type].addListener(
(stuff) => {
console.log(!stuff.url.match(/google.com.*/));
if(!stuff.url.match(/google.com.*/))
return;
console.log(type);
console.log(stuff);
}
);
}
makeRequest("onBeforeRequest");
makeRequest("onBeforeSentHeaders");
makeRequest("onSendHeaders");
makeRequest("onHeadersReceived");
makeRequest("onResponseStarted");
makeRequest("onCompleted");
With the console.log above the if, I can see the regex returning true when I want it to and the code making it past the if. When I remove the console.log above the if the if no longer gets executed.
My question is then, how do I get the filtering parameter to work or if that is indeed broken, how can I get the code past the if to be executed? Obviously, this is a fire hose, and to begin searching for a solution I will need to reduce the data.
Thanks
urls must be a string or an array of match patterns. Regular expressions are not supported.
WebRequest.jsm uses resource://gre/modules/MatchPattern.jsm. Someone might get confused with the util/match-pattern add-on sdk api, which does support regular expressions.
I've searched for days looking into this issue but have yet to come up with something. We are migrating our analytics code over to DTM. We are using our own Library hosted at DTM. Everything works great except for some missing data collection parameters in the query string only when using the Adobe Analytics tool to assign variables.
Let me explain. When I use custom code in DTM in a rule to call analytics I get exactly the same query string parameters in the request that we were getting before.
var str = 'string';
s.linkTrackVars = 'prop61,eVar61';
s.linkTrackEvents = 'none';
s.prop61 = str;
s.eVar61 = str;
s.tl(this, 'o', str);
This works fine.
If I try to set eVar61 and prop61 with the Adobe Analytics tool inside a rule, five parameters are no longer in the query string. Specifically 'pev1', 'pid', 'pidt', 'oid' and 'ot'. Is there a way to get DTM to set those parameters or am I just to use custom code for all our rules?
Thanks
Those are clickmap query string parameters. Click on the gear icon to edit the global Analytics tool, and under Link Tracking, make sure 'Enable Clickmap' is checked. Alternatively, you can set s.trackInlineStats=true in your code, which effectively achieves the same effect.
If you ever see missing query string parameters in the future, you can determine what variables to define using the Data Collection Query Parameters in the Marketing Cloud documentation.
Salve! When I try Mozilla's Validator on my addon, it get the following error related to my treatment of clipboard usage:
nsITransferable has been changed in Gecko 16.
Warning: The nsITransferable interface has changed to better support
Private Browsing Mode. After instantiating the object, you should call
the init function on it before any other functions are called.
See https://developer.mozilla.org/en-US/docs/Using_the_Clipboard for more
information.
var trans = Components.classes["#mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
if ('init' in trans){ trans.init(null);};
I can't understand this.
Here is my code - I am clearly calling trans.init:
var clip = Components.classes["#mozilla.org/widget/clipboard;1"].getService(Components.interfaces.nsIClipboard);
if (!clip) return "";
var trans = Components.classes["#mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
if ('init' in trans){ trans.init(null);}; //<--IT DOESN'T LIKE THIS
if (!trans) return false;
trans.addDataFlavor("text/unicode");
I've also tried the Transferable function from Mozilla's example here, but get the same non-validation report.
One of the Mozilla AMO editors told me to write exactly this, and it still doesn't validate.
I've also tried, simply:
var trans = Components.classes["#mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
trans.init(null); //<---LOOK HERE
if (!trans) return false;
trans.addDataFlavor("text/unicode");
The Validator does not report any errors - just this warning. Everything works properly. Mozilla updated their Gecko engine, and they want devlopers to match up to the new standard.
In my usage, we want to be able to use the contents of the clipboard that was probably gotten from outside the application, too, so we do want to call the init function with null instead of window.
Any advice would be wonderful!
trans.init(null) is valid in some circumstances, such as yours. It can also cause privacy leaks if used in the wrong circumstances, so the validator flags all uses of it as potentially requiring changing. Therefore, it is a warning that you can ignore in this case.
I'm Extremely new to this and I've been trying to get the title of each unique forum page (or topic) here is the code I have so far:
function GraalGet() {
//parses forums for ALL posts one by one, extract <title> from HTML webpage
var sheet = SpreadsheetApp.getActiveSheet();
var i = 31
var url = "http://www.graalians.com/forums/showthread.php?p="+i;
//var params = {method : "post"}; can this be used at all?
//The aim: loop this once you can get 1 result.
var geturl = UrlFetchApp.fetch(url).getContentText(); //maybe .getContentText should be elsewhere?
var parseurl = Xml.parse(geturl, true); //confirmed - this is true because it wont parse HTML if false
var titleinfo = parseurl.getElement().getElement("html"); //.getElement('body');//.getElements("title");
sheet.appendRow([titleinfo, i]);
}
In addition the script would write down the topic number in the adjoining cell.
There's a lot of answered questions about extracting XML data, and this example is about parsing HTML but I couldn't pull up any results - I'm honestly stumped and any help about finding and extracting the tag will be appreciated. (If you have the time, please feel free to explain as well, but I'll be thankful for any help really.)
For reference I have used these:
Google's Kevin Bacon Script
The authors comments on bugs with the script & some explanation
I'm sorry if I'm being pedantic, this is my first post & I don't want to anger anyone, please do tell me if I've broken any rules, I'll do my best to fix them. I've left the comments I made for myself for your perusal too.
You can use Logger.log to print out debugging information. I did this with your function and figured out that the title tag is embedded within the tag. So you should use something like this. Also, getElement returns an XmlElement object which you should convert to String using getText().
var titleinfo = parseurl.getElement().getElement('head').getElement('title');
sheet.appendRow([titleinfo.getText(), i]);
I have a set of data that I need to store at design-time to construct the contents of a group of components at run-time.
Something like this:
type
TVulnerabilityData = record
Vulnerability: TVulnerability;
Name: string;
Description: string;
ErrorMessage: string;
end;
What's the best way of storing this data at design-time for later retrieval at run-time? I'll have about 20 records for which I know all the contents of each "record" but I'm stuck on what's the best way of storing the data.
The only semi-elegant idea I've come up with is "construct" each record on the unit's initialization like this:
var
VulnerabilityData: array[Low(TVulnerability)..High(TVulnerability)] of TVulnerabilityData;
....
initialization
VulnerabilityData[0].Vulnerability := vVulnerability1;
VulnerabilityData[0].Name := 'Name of Vulnerability1';
VulnerabilityData[0].Description := 'Description of Vulnerability1';
VulnerabilityData[0].ErrorMessage := 'Error Message of Vulnerability1';
VulnerabilityData[1]......
.....
VulnerabilityData[20]......
Is there a better and/or more elegant solution than this?
Thanks for reading and for any insights you might provide.
You can also declare your array as consts and initialize it...
const
VulnerabilityData: array[Low(TVulnerability)..High(TVulnerability)] of TVulnerabilityData =
(
(Vulnerability : vVulnerability1; Name : Name1; Description : Description1; ErrorMessage : ErrorMessage1),
(Vulnerability : vVulnerability2; Name : Name2; Description : Description2; ErrorMessage : ErrorMessage2),
[...]
(Vulnerability : vVulnerabilityX; Name : NameX; Description : DescriptionX; ErrorMessage : ErrorMessageX)
)
);
I don't have an IDE on this computer to double check the syntax... might be a comma or two missing. But this is how you should do it I think.
not an answer but may be a clue: design-time controls can have images and other binary data associated with it, why not write your data to a resource file and read from there? iterating of course, to make it simpler, extensible and more elegant
The typical way would be a file, either properties style (a=b\n on each line) cdf, xml, yaml (preferred if you have a parser for it) or a database.
If you must specify it in code as in your example, you should start by putting it in something you can parse into a simple format then iterate over it. For instance, in Java I'd instantiate an array:
String[] vals=new String[]{
"Name of Vulnerability1", "Description of Vulnerability1", "Error Message of Vulnerability1",
"Name of Vulnerability2", ...
}
This puts all your data into one place and the loop that reads it can easily be changed to read it from a file.
I use this pattern all the time to create menus and for other string-intensive initialization.
Don't forget that you can throw some logic in there too! For instance, with menus I will sometimes create them using data like this:
"^File", "Open", "Close", "^Edit", "Copy", "Paste"
As I'm reading this in I scan for the ^ which tells the code to make this entry a top level item. I also use "+Item" to create a sub-group and "-Item" to go back up to the previous group.
Since you are completely specifying the format you can add power later. For instance, if you coded menus using the above system, you might decide at first that you could use the first letter of each item as an accelerator key. Later you find out that File/Close conflicts with another "C" item, you can just change the protocol to allow "Close*e" to specify that E should be the accelerator. You could even include ctrl-x with a different character. (If you do shorthand data entry tricks like this, document it with comments!)
Don't be afraid to write little tools like this, in the long run they will help you immensely, and I can turn out a parser like this and copy/paste the values into my code faster than you can mold a text file to fit your example.