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internationalized domain names (DNS, web, CSRs, normalize to Unicode in database, prohibit non-ASCII characters in user account names)

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* For non-ASCII domain names, we will keep the Unicode encoding in our users/aliases table. This is nice for the user and also simplifies things like sorting domain names (using Unicode lexicographic order is good, using ASCII lexicogrpahic order on IDNA is confusing).
* Write nsd config, nsd zone files, nginx config, and SSL CSRs with domains in IDNA-encoded ASCII.
* When checking SSL certificates, treat the CN and SANs as IDNA.
* Since Chrome has an interesting feature of converting Unicode to IDNA in <input type="email"> form fields, we'll also forcibly convert IDNA to Unicode in the domain part of email addresses before saving email addresses in the users/aliases tables so that the table is normalized to Unicode.
* Don't allow non-ASCII characters in user account email addresses. Dovecot gets confused when querying the Sqlite database (which we observed even for non-word ASCII characters too, so it may not be related to the character encoding).
This commit is contained in:
Joshua Tauberer
2015-01-17 13:41:53 +00:00
parent d155aa8745
commit 1bf8f1991f
7 changed files with 87 additions and 18 deletions
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management/templates/aliases.html
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@@ -27,6 +27,7 @@
<label for="addaliasEmail" class="col-sm-1 control-label">Alias</label>
<div class="col-sm-10">
<input type="email" class="form-control" id="addaliasEmail">
<div style="margin-top: 3px; padding-left: 3px; font-size: 90%" class="text-muted">You may use international (non-ASCII) characters, but this has not yet been well tested.</div>
</div>
</div>
<div class="form-group">