A co-worker of mine has 600,000+ .EML files which contain some UTF-8 encoded text. Here's a sample:
To: =?utf-8?B?Q2FuY2VsbGF0aW9uIDxDYW5jZWxsYXRpb25Abm9ydmVyZ2VuY2UuY29t
+Pg==?=
CC: =?utf-8?B?VGltIEhpbGtlIChSVlApIDx0aW0uaGlsa2VAbm9ydmVyZ2VuY2UuY29t
+PiwgQmVybmFyZCBDb3lsZSBNVlAgb2
YgREMgPGJlcm5hcmQuY295bGVAbm9ydmVyZ2VuY2UuY29tPiwgRGF2aWQgQnV0bGVyIChB
+VlApIDxkYXZpZC5idXRsZXJAbm9ydm
VyZ2VuY2UuY29tPiwgVGltb3RoeSBDYXNleSA8dGltb3RoeS5jYXNleUBub3J2ZXJnZW5j
+ZS5jb20+?=
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Thu, 24 Jun 2004 13:47:45 -0400
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content-class: urn:content-classes:message
MIME-Version: 1.0
Subject: SOME EMAIL SUBJECT
Date: Thu, 24 Jun 2004 13:47:44 -0400
Message-ID: <F237EF3B2E3F5E47BAA4F33B79DB0AB502764A95@SERVER.REMOVED>
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Thread-Topic: SOME THREAD TOPIC
Thread-Index: AcRaE1qu8p4j/zoYQ4WJdDsPJbcodg==
From: "NAME REMOVED" <NAME.REMOVED@EMAIL.REMOVED
Return-Path: NAME.REMOVED@EMAIL.REMOVED
He'd like to decode the To: and Cc: lines. What tools are necessary to do this?
Update: Upon examining MIME::Parser, I've tracked down the necessary code in MIME::Words. My solution is: #!/usr/bin/perl
use MIME::Words 'decode_mimewords';
use strict;
use warnings;
my @files = @ARGV;
for my $file (@files) {
local @ARGV = ($file);
local $^I = ".bak";
local $/;
print scalar decode_mimewords($_) while <>;
}
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