Modifying the contents of a message

Kent James kent at
Thu Jan 26 17:23:02 UTC 2012

On 1/26/2012 9:17 AM, David Bienvenu wrote:
> On 1/26/2012 7:19 AM, Jonathan Protzenko wrote:
>> Hi everyone,
>> Ever since I started reading the and 
>> newsgroups, a recurring question about 
>> Thunderbird has been "how can I modify the contents of a message" 
>> from an addon? I recently (less than 7 days ago) replied to this 
>> question twice, and my answer was basically:
>> - inject a message in a local folder,
>> - copy it to the destination folder,
>> - remove the old message.
>> I'm not sure there's a better way, but I guess not. My question is: 
>> could we make that easier by implementing, say, in C++, 
>> nsIMsgFolder::InjectMessageFromStream, making it of course 
>> scriptable? The arguments are:
>> - this is something an addon will want to do, and it seems legitimate 
>> that they should want to do so,
>> - it's better to provide a function for that than to have someone do 
>> it real, real wrong.
> Yes, it would be great to provide an easy way for extensions to do 
> this, because extensions often forget about things like IMAP, and 
> going forward, things like pluggable stores. 

And "going forward", both extensions AND core code often forget about 
the concept that the universe of messaging types is not limited to imap, 
news, rss, and pop3.


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