问题
In my app I have to send email to recipient who has umlauts in domain name. Example: "test@äöü.test.com"
I'm using cfmail tag and I'm getting such error: "invalid definition for attribute to at tag mail" "Invalid E-Mail Address definition (test@äöü.test.com)"
Is there any way to send email to such recipients in coldfusion?
回答1:
There is even a easier solution! Why not use Oracles built in class: http://download.oracle.com/javase/6/docs/api/java/net/IDN.html#toUnicode(java.lang.String)
Then you only have to do this (example shows from punycode to Unicode):
<cfset strUrl = "xn--land-poa.se" />
<!--- Create a Java URL. --->
<cfset jUrl = CreateObject( "java", "java.net.IDN" ).toUnicode(strUrl) />
<cfoutput>
#jUrl#
You don´t have to download anything!
回答2:
I'm no I18N expert but I was intrigued enough to investigate and come up with the following solution.
The problem is essentially how to send mail to Internationalised Domain Names (IDN), i.e. those which contain non-ASCII characters. IDNs are valid nowadays but not recognized by many systems including Java (and therefore ColdFusion, which uses the Java validation for CFMAIL address fields - hence the error you're seeing).
For a system to recognise an IDN it needs to be converted to an ASCII form called Punycode. For example müller.org needs to be converted to xn--mller-kva.org
LibIdn is an OS java library that will do this and the following code shows how you can hook it up to CF using Mark Mandel's JavaLoader.
<cffunction name="convertIdnToAscii" returntype="string" output="false">
<cfargument name="domain" type="string" required="true">
<cfscript>
var local = {};
// these paths assume the JavaLoader folder and the libidn-1.22.jar are in the same folder as the cfm template.
local.javaLoaderPath = "javaLoader.JavaLoader";
local.idnLibPath = ExpandPath( "libidn-1.22.jar" );
// convert the IDN lib path to an array which is what JavaLoader expects
local.libPathArray = [ local.idnLibPath ];
//load the IDN Lib
loader = CreateObject( "component",local.javaLoaderPath ).init( local.libPathArray );
// create an instance of the IDN lib
local.idn = loader.create( "gnu.inet.encoding.IDNA" ).init();
// convert the domain name
return local.idn.toASCII( arguments.domain );
</cfscript>
</cffunction>
<cffunction name="convertIdnAddress" returntype="string" output="false">
<cfargument name="address" type="string" required="true">
<cfscript>
var local = {};
local.domain = GetToken( arguments.address,2,"@" );
local.converted = convertIdnToAscii( local.domain );
return Replace( arguments.address,local.domain,local.converted );
</cfscript>
</cffunction>
<!--- Loop over a list of addresses and convert them if necessary --->
<cfset processedAddresses = []>
<cfloop list="test@äöü.test.com,test@example.com" index="address">
<cfif( NOT IsValid( "email",address ) )>
<cfset address = convertIdnAddress( address )>
</cfif>
<cfmail server="0.0.0.0" from="sender@mydomain.com" to="#address#" subject="test">Message</cfmail>
<cfset ArrayAppend( processedAddresses,address )>
</cfloop>
<cfdump var="#processedAddresses#">
This will send 2 emails (to a non-existent mailserver) and dump the converted addresses:
test@xn--4ca0bs.test.com
test@example.com
Notes:
- To get the libidn jar file, download and extract the tar and look for it in the Java directory
- The above assumes the libidn jar and JavaLoader package are located in the same folder as the template contain the CF code
- The above should work on CF8 and above, although I've only tested it on CF9.
- Be aware there's no error handling for addresses that might be invalid for reasons other than it containing an IDN.
来源:https://stackoverflow.com/questions/6356460/how-to-send-email-to-recipient-with-umlauts-in-domain-name