Append to subject line when auto-forwarding ExchangeService emails - asp.net

I have a script which sets up rules on users' outlooks which autoforward their emails to marked recipients, should they be out of the office.
I wish to alter the subject before sending, ideally prefixing it with "AUTFORWARD: The subject".
I cannot see how to do this, if it is possible at all.
Dim oRule As New Rule()
oRule.DisplayName = "Forwarder"
oRule.Actions.ForwardToRecipients.Add("me#address.com")
Dim oCreateNewRule As New CreateRuleOperation(oRule)
oExchangeService.UpdateInboxRules(New RuleOperation() {oCreateNewRule}, True)
oCreateNewRule = Nothing
oRule = Nothing

There is no Action in EWS that will allow you to set the subject with a Rule (or any property other then the importance or categories). You could look at using a Transport Rule instead which allows a lot more Actions http://technet.microsoft.com/en-us/library/aa998315(v=exchg.150).aspx. Eg one thing you can do with a Transport Rule is detect if a message is AutoForwarded using the conditions and then use the prepend subject action to achieve what you want. The only problem with this is it would affect all users who are forwarding messages which may or may not be a problem. Other then that you could write a Transport Agent which would give you full flexibility.
Cheers
Glen

Related

GELScript - Email to multiple recipients

How can I send a gel:email to multiple recipients? I have records with 3 email addresses in each and I want to send the same email to all 3.
This is my current code:
<core:forEach items="${getDetails.rows}" var="row">
<core:set value="${row.Manager_Email}" var="manager" />
<core:set value="${row.Delivery_Manager_Email}" var="deliveryManager" />
<core:set value="${row.Director_Email}" var="director" />
<core:choose>
<core:when test="${status == 1}">
<gel:email from="Clarity_Do-Not-Reply#gov.nl.ca" fromName="Clarity Administrator" to="${manager};${deliveryManager};${director}" subject="Notification: Project is due to finish within 7 days">
I've tried that and:
to="${manager;deliveryManager;director}"
Neither seem to work. The doc says they can be split with the ; but it doesn't seem to be working. What am I doing wrong?
Does it work with just one of them? I would start and establish that the mail server works in this environment. Choose one of those variables and print it out. If it's not what you are expecting then fix your query or wherever you are getting those bound variables. If it is correct then remove the other two recipients and establish that you can send an email successfully to just one of the recipients. If that works then continue troubleshooting.
If it doesn't work then you may discover that your mail server does not allow relaying, unauthenticated services or sending mail from a non-existent email account. You can start checking those things.
One of the issues with both the GEL email tag and the CORE email tag is that it doesn't support including the same email address twice. If you check your project you might find that the same resource is listed as both delivery manager and manager or director, etc. This is a problem for the tag.
You can get around this by placing all recipients into a data structure that doesn't allow duplicates (like a hash map/set) and then iterate them out back into a semi colon delimited String.
There are probably lots of examples of this type of thing on regoXchange, a huge repository of free GEL scripts and Clarity related customizations and development.
This approach that was in your original script example is the correct way to do it: to="${manager};${deliveryManager};${director}"
That is, using a single delimiter type (semi-colon in this case) to separate each evaluated variable value.
The style from your second attempt definitely will not work as ${manager;deliveryManager;director} is not a valid JEXL expression.
There are additional points to be aware of, such as:
Each of the values in the to attribute should not have anything else that can be mistaken for another delimiter type (e.g. no spaces or commas), as you may not mix and match.
Only use the email address directly, meaning some.one#somedomain.com and don't use forms like "One, Some" <some.one#somedomain.com>
Make sure none of the email addresses are duplicated in the list. Every address must be unique. As mentioned in the answer provided by #coda, you can filter duplicates out with some extra GEL or you can put the logic into your query (the row source) to de-duplicate.
If this is running in a SaaS environment, make sure none of the user addresses you are picking up are among the defaults for some built-in user accounts like username#mailserver.com or similar, as they have resulted in emails being filtered out before sending.

Using Datazen in an iframe with external authentication

I was able to successfully use external authentication with datazen via HTTPWEBREQUEST from code-behind with VB.NET, but I am unclear how to use this with an iframe or even a div. I'm thinking maybe the authorization cookies/token isn't following the iframe around? The datazen starts to load correctly, but then it redirects back to the login page as if it's not being authenticated. Not sure how to do that part, this stuff is pretty new to me and any help would be greatly appreciated!!
Web page errors include:
-OPTIONS url send # jquery.min.js:19b.extend.ajax # jquery.min.js:19Viewer.Controls.List.ajax # Scripts?page=list:35Viewer.Controls.List.load # Scripts?page=list:35h.callback # Scripts?page=list:35
VM11664 about:srcdoc:1
XMLHttpRequest cannot load http://datazenserver.com/viewer/jsondata. Response for preflight has invalid HTTP status code 405Scripts?page=list:35
load(): Failed to load JSON data. V…r.C…s.List {version: "2.0", description: "KPI & dashboard list loader & controller", url: "/viewer/jsondata", index: "/viewer/", json: null…}(anonymous function) # Scripts?page=list:35c # jquery.min.js:4p.fireWith # jquery.min.js:4k # jquery.min.js:19r # jquery.min.js:19
Scripts?page=list:35
GET http://datazenserver.com/viewer/login 403 (Forbidden)(anonymous function) # Scripts?page=list:35c # jquery.min.js:4p.fireWith # jquery.min.js:4k # jquery.min.js:19r # jquery.min.js:19
' ''//////////////////////////////////
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create("http://datazenserver.com/"), HttpWebRequest)
myHttpWebRequest.CookieContainer = New System.Net.CookieContainer()
Dim authInfo As String = Session("Email")
myHttpWebRequest.AllowAutoRedirect = False
myHttpWebRequest.Headers.Add("headerkey", authInfo)
myHttpWebRequest.Headers.Add("Access-Control-Allow-Origin", "*")
myHttpWebRequest.Headers.Add("Access-Control-Allow-Headers", "Accept, Content-Type, Origin")
myHttpWebRequest.Headers.Add("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
Response.AppendHeader("Access-Control-Allow-Origin", "*")
' Create a new 'HttpWebRequest' Object to the mentioned URL.
' Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
Dim streamResponse As Stream = myHttpWebResponse.GetResponseStream()
Dim streamRead As New StreamReader(streamResponse)
frame1.Page.Response.AppendHeader("Access-Control-Allow-Origin", "*")
frame1.Page.Response.AppendHeader("headerkey", authInfo)
frame1.Attributes("srcdoc") = "<head><base href='http://datazenserver.com/viewer/' target='_blank'/></head>" & streamRead.ReadToEnd()
You might have to do more of this client-side, and I don't know whether you'll be able to because of security concerns.
External authentication in Datazen looks something like this:
User-Agent | Proxy | Server
-------------------|----------------------|------------------------------------
1. /viewer/home --> 2. Append header --> 3. Check cookie (not present)
<-- 5. Forward <-- 4. Redirect to /viewer/login
6. /viewer/login --> 7. Append header --> 8. Append cookie
<-- 10. Forward <-- 9. Redirect to /viewer/home
11. /viewer/home --> 12. Append header --> 13. Check cookie (valid)
<-- 15. Forward <-- 14. Give content
16. .................. Whatever the user wanted ..........................
So even though you're working off a proxy with a header, you're still getting a cookie back that it uses.
Now, that's just context.
My guess, from your description of the symptoms, is that myHttpWebResponse should have a cookie set (DATAZEN_AUTH_TOKEN, I believe), but it's essentially getting thrown out--you aren't using it anywhere.
You would need to tell your browser client to append that cookie to any subsequent (iframe-based) requests to the domain of your Datazen server, but I don't believe that's possible due to security restrictions. I don't know a whole lot about CORS, though, so there might be a way to permit it.
I don't know whether there's any good way to do what you're looking to do here. At best, I can maybe think of a start to a hack that would work, but I can't even find a good way to make that work, and you really wouldn't want to go there.
Essentially, if you're looking to embed Datazen in an iframe, I would shy away from external authentication. I'd shy away from it regardless, but especially there.
But, if you're absolutely sure you need it over something like ADFS, you'll need some way to get that cookie into your iframe requests.
The only way I can think to make this work would be to put everything on the same domain:
www.example.com
datazen.example.com (which is probably your proxy)
You could then set a cookie from your response that stores some encrypted (and likely expiring) form of Session("Email"), and passes it back down in your html.
That makes your iframe relatively simple, because you can just tell it to load the viewer home. Something to the effect of:
<iframe src="//datazen.example.com/viewer/home"></iframe>
In your proxy, you'll detect the cookie set by your web server, decrypt the email token, ensure it isn't expired, then set a header on the subsequent request onto the Datazen server.
This could be simplified at a couple places, but this should hold as true as possible to your original implementation, as long as you can mess with DNS settings.
I suppose another version of this could involve passing a parameter to your proxy, and sharing some common encryption key. That would get you past having to be on the same domain.
So if you had something like:
var emailEncrypted = encrypt(Session("Email") + ":somesalt:" + DateTime.UtcNow.ToString("O"));
Then used whatever templating language you want to set your iframe up with:
<iframe src="//{{ customDomain }}/viewer/home?emailkey={{ emailEncrypted }}"></iframe>
Then your proxy detected that emailkey parameter, decrypted it, and checked for expiration, that could work.
Now you'd have a choice to make on how to handle this, because Datazen will give you a 302 to /viewer/login to get a cookie, and you need to make sure to pass the correct emailkey on through that.
What I would do, you could accept that emailkey parameter in your proxy, set a completely new cookie yourself, then watch for that cookie on subsequent requests.
Although at that point, it would probably be reasonable to switch your external authentication mode to just use cookies. That's probably a better version of this anyway, assuming this is the only place you use Datazen, and you'd be safe to change something so fundamental. That would substantially reduce your business logic.
But, you wouldn't have to. If you didn't want to change that, you could just check for the cookie, and turn it into a header.
You should do (1), but just for good measure, one thing I'm not sure on, is whether you can pass users directly to /viewer/login to get a cookie from Datazen. Normally you wouldn't, but it seems like you should be able to.
Assuming it works as expected, you could just swap that URL out for that. As far as I know (although I'd have to double-check this), the header is actually only necessary once, to set up the cookie. So if you did that, you should get the cookie, then not need the URL parameter anymore, so the forced navigation would be no concern.
You'll, of course, want to make sure you've got a good form of encryption there, and the expiration pattern is important. But you should be able to secure that if you do it right.
I ended up just grabbing the username and password fields and entering them in with javascript. But this piece helped me a ton. You have to make sure you set the
document.domain ='basedomain.com';
in javascript on both sites in order to access the iframe contents else you'll run into the cross-domain issues.

MailMessage won't send to more than 2 recipients?

In ASP.NET I am sending a MailMessage but it won't go through. The code I am using is
message.To.Add(email1 + ", " + email2 + ", " + email3);
When I do this I never receive my mail. However if I use this code:
message.To.Add(email1 + ", " + email2);
It sends just fine every time. Anybody know what is going on here? All 3 emails are the same (for testing purposes) and have been verified to be correct while debugging. I tried inserting a different email address for the third and still nothing went through. I may be missing something obvious...
EDIT:
Everyone is telling me to add them individually which may well be good advice if everyone agrees upon it. The reason I didn't do this previously and I just tried it again with three seperate addresses and none of them were sent. Maybe I have another issue entirely if that is supposed to work?
EDIT: For anyone with the same problem in the future here is what I did. When creating the MailMessage I didn't create it with any parameters and instead specified the From parameter seperately. I wrapped the From and all To emails in new MailAddress() and the combination of all those changes appeared to work.
Just call Add multiple times.
The To property of MailMessage is a collection, so you should call
message.To.Add 3 times if want to send to 3 email addresses.
Instead of contencating mail addressed into a single Add statement, you should be adding them one at a time:
message.To.Add(email1);
message.To.Add(email2);
message.To.Add(email3);
Since you're adding to a collection.
Also, if the addresses are the same, the function usually doesn't add it twice in my experience. This may be a behavior of the Mailmessage.To.Add function, or it could be that when it gets to me Outlook has stripped out duplicates, but it looks to me like it filters out duplicates. You may be seeing the same on your system.
Try
message.to.add(email1);
message.to.add(email2);
message.to.add(email3);
message.to.add(email4);
Hope this helps
Harvey Sather
I store message recipients in the web.config file and then handle it like this
string lstrDistributitionList = ConfigurationSettings.AppSettings["SMTP_DISTRIBUTION_LIST"];
string[] lastrDistributitionList = lstrDistributitionList.Split(';');
for (Int32 loopCounter = 0; loopCounter < lastrDistributitionList.Length; loopCounter++)
{
msg.To.Add(lastrDistributitionList[loopCounter]);
}
Harvey Sather

ASP.NET MVC 2 EditModel include Id? Securing Id is not tampered with

I am looking for some best practices when is comes to creating EditMoels and updating data in an ASP.NET MVC app. Lets say I have a Url like so /Post/Edit?Id=25
I am ensuring the user has permissions to edit the specific post by Id on the Get request and the same for my Post in the controller. I am using the ValidateAntiForgeryToken.
Questions: Should I include the Id property in my EditModel? If so, Should I encrypt it?
The problem is I can use FireBug to edit the Id hiddedinput and edit a different post as long as I have permission to do so. This is not horrible, but seems wrong.
Any help would be great!
There are several ways to prevent this.
The first - don't send sensitive data to the client at all. Keep the post id in session variables, so the user can never edit it. This may or may not be an option depending on your architecture.
The next approach is to convert the direct reference to an indirect one. For example, instead of sending postids = {23452, 57232, 91031} to the client to render a drop-down list, you should send an opaque list {1,2,3}. The server alone knows that 1 means 23452, 2 means 57232 and so on. This way, the user can't modify any parameter you don't want him to.
The last approach is including some kind of hash value that adds as an integrity check. For example, suppose you have 3 hidden fields in a html page - {userId=13223, postId=923, role=author}. You first sort the field names and then concatenate the values to get a string like postId=923&userId=13223&role=author. Then, append a server secret to this string, and hash (SHA-1 or MD5) the entire string. For eg. SHA-1('postId=923&userId=13223&role=author&MySuperSecretKey'). Finally add this hashed value as a hidden parameter. You may also want to add another hidden field called ProtectedParameters=userId,postId,role.
When the next request is made, redo the entire process. If the hash differs, balk the process.
Security wise, I have listed the options in decreasing order. At the same time, its probably in the increasing order of convenience. You have to pick the right mix for your application.
I don't think you should worry with that, if the user does what you said, i suppose that you'll know who edited what, so if he edits the wrong post, doing as you said, you can always remove his edition rights...
If you can't thrist your users, don't let them edit anything...

Can I read Captcha data from JavaScript in a secure way?

We use Captcha control in a registration form that we make full client validation for all fields in JavaScript ( JQuery ) beside server validation ..
I tried a lot of ways but all will write the Captcha value in JavaScript that can be accessed by anyone :(
I search if is there any way that allow me validate Captcha value in client side using JQuery in secure way or it can't be done ?
It cannot be done.
Javascript is client-side, as you know, and any code client-side has to be treated as potentially compromised as you don't have control over it.
At best, you could resort to sending up a salted hash of the value along with the salt, but even that in itself could be used to test guess values before actually submitting it.
Everything else relies on calls to the server.
As per comment request, here's the general idea:
Firstly, on the server, calculate a random string to be used as the salt. This should be roughly unique every request. The purpose of this string is to prevent rainbow table attacks.
Now, saving this string separately, but also create another string that is the concatenation of random string and the Captcha answer. Of this new combined string you generate the hash (for example, SHA-1) of it.
using System.Web.Security;
...
string hashVal = FormsAuthentication.HashPasswordForStoringInConfigFile(combined, "SHA1");
Both the random string and the hash value need to be placed in the page for the javascript to be able to read.
On the client side, when a user answers the Captcha, take the random string and concatenate it with the answer (getting the idea here?). Taking this string, you can use something like the SHA-1 JQuery plugin to hash it and compare it with the pre-computed hash you sent up.
hashVal = $.sha1(combinedString)
If it matches, it is (almost) certainly the correct answer. If it doesn't, then it is 100% the wrong answer.
you could use ajax to post the current value to the server, which would respond true or false. that would keep you from doing a real post and also from giving away the catpcha's value in html.
My solution )) Every time when page shows captcha to the user, you can dynamically generate obfuscated JavaScript functions(i think the best way 5 or 10).
For example, one function(or 3)) ) can set cookies with pregenerated hash(server returns it)(from real value of the captcha), other functions must realize server side algorithm to check value which user's typed. I can say that it works for 100%, because it is very hard to parse dynamically javascript + we set user cookies on client side(It is very hard for Bots's to find out where and how you set and check cookies), by using JavaScript.

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