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implement imap quota extension (rfc 9208)

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we only have a "storage" limit. for total disk usage. we don't have a limit on
messages (count) or mailboxes (count). also not on total annotation size, but
we don't have support annotations at all at the moment.

we don't implement setquota. with rfc 9208 that's allowed. with the previous
quota rfc 2087 it wasn't.

the status command can now return "DELETED-STORAGE". which should be the disk
space that can be reclaimed by removing messages with the \Deleted flags.
however, it's not very likely clients set the \Deleted flag without expunging
the message immediately. we don't want to go through all messages to calculate
the sum of message sizes with the deleted flag. we also don't currently track
that in MailboxCount. so we just respond with "0". not compliant, but let's
wait until someone complains.

when returning quota information, it is not possible to give the current usage
when no limit is configured. clients implementing rfc 9208 should probably
conclude from the presence of QUOTA=RES-* capabilities (only in rfc 9208, not
in 2087) and the absence of those limits in quota responses (or the absence of
an untagged quota response at all) that a resource type doesn't have a limit.
thunderbird will claim there is no quota information when no limit was
configured, so we can probably conclude that it implements rfc 2087, but not
rfc 9208.

we now also show the usage & limit on the account page.

for issue #115 by pmarini
This commit is contained in:
Mechiel Lukkien
2024-03-11 14:02:35 +01:00
parent 6c92949f13
commit 4dea2de343
17 changed files with 428 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
webadmin/admin.js
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@ -622,7 +622,7 @@ var api;
async Account(account) {
const fn = "Account";
const paramTypes = [["string"]];
const returnTypes = [["{}", "any"]];
const returnTypes = [["{}", "any"], ["int64"]];
const params = [account];
return await _sherpaCall(this.baseURL, this.authState, { ...this.options }, paramTypes, returnTypes, fn, params);
}
@ -1766,8 +1766,26 @@ const accounts = async () => {
accountModified = true;
})), ' ', dom.submitbutton('Add account', attr.title('The account will be added and the config reloaded.')))));
};
const formatQuotaSize = (v) => {
if (v === 0) {
return '0';
}
const m = 1024 * 1024;
const g = m * 1024;
const t = g * 1024;
if (Math.floor(v / t) * t === v) {
return '' + (v / t) + 't';
}
else if (Math.floor(v / g) * g === v) {
return '' + (v / g) + 'g';
}
else if (Math.floor(v / m) * m === v) {
return '' + (v / m) + 'm';
}
return '' + v;
};
const account = async (name) => {
const [config, domains] = await Promise.all([
const [[config, diskUsage], domains] = await Promise.all([
client.Account(name),
client.Domains(),
]);
@ -1803,30 +1821,11 @@ const account = async (name) => {
s = s.substring(0, s.length - 1);
}
let v = parseInt(s);
console.log('x', s, v, mult, formatQuotaSize(v * mult));
if (isNaN(v) || origs !== formatQuotaSize(v * mult)) {
throw new Error('invalid number');
}
return v * mult;
};
const formatQuotaSize = (v) => {
if (v === 0) {
return '0';
}
const m = 1024 * 1024;
const g = m * 1024;
const t = g * 1024;
if (Math.floor(v / t) * t === v) {
return '' + (v / t) + 't';
}
else if (Math.floor(v / g) * g === v) {
return '' + (v / g) + 'g';
}
else if (Math.floor(v / m) * m === v) {
return '' + (v / m) + 'm';
}
return '' + v;
};
dom._kids(page, crumbs(crumblink('Mox Admin', '#'), crumblink('Accounts', '#accounts'), name), dom.div('Default domain: ', config.Domain ? dom.a(config.Domain, attr.href('#domains/' + config.Domain)) : '(none)'), dom.br(), dom.h2('Addresses'), dom.table(dom.thead(dom.tr(dom.th('Address'), dom.th('Action'))), dom.tbody(Object.keys(config.Destinations || {}).length === 0 ? dom.tr(dom.td(attr.colspan('2'), '(None, login disabled)')) : [], Object.keys(config.Destinations || {}).map(k => {
let v = k;
const t = k.split('@');
@ -1883,7 +1882,7 @@ const account = async (name) => {
}
form.reset();
window.location.reload(); // todo: only reload the destinations
}, fieldset = dom.fieldset(dom.label(style({ display: 'inline-block' }), dom.span('Localpart', attr.title('The localpart is the part before the "@"-sign of an email address. If empty, a catchall address is configured for the domain.')), dom.br(), localpart = dom.input()), '@', dom.label(style({ display: 'inline-block' }), dom.span('Domain'), dom.br(), domain = dom.select((domains || []).map(d => dom.option(domainName(d), domainName(d) === config.Domain ? attr.selected('') : [])))), ' ', dom.submitbutton('Add address'))), dom.br(), dom.h2('Limits'), dom.form(fieldsetLimits = dom.fieldset(dom.label(style({ display: 'block', marginBottom: '.5ex' }), dom.span('Maximum outgoing messages per day', attr.title('Maximum number of outgoing messages for this account in a 24 hour window. This limits the damage to recipients and the reputation of this mail server in case of account compromise. Default 1000. MaxOutgoingMessagesPerDay in configuration file.')), dom.br(), maxOutgoingMessagesPerDay = dom.input(attr.type('number'), attr.required(''), attr.value(config.MaxOutgoingMessagesPerDay || 1000))), dom.label(style({ display: 'block', marginBottom: '.5ex' }), dom.span('Maximum first-time recipients per day', attr.title('Maximum number of first-time recipients in outgoing messages for this account in a 24 hour window. This limits the damage to recipients and the reputation of this mail server in case of account compromise. Default 200. MaxFirstTimeRecipientsPerDay in configuration file.')), dom.br(), maxFirstTimeRecipientsPerDay = dom.input(attr.type('number'), attr.required(''), attr.value(config.MaxFirstTimeRecipientsPerDay || 200))), dom.label(style({ display: 'block', marginBottom: '.5ex' }), dom.span('Disk usage quota: Maximum total message size ', attr.title('Default maximum total message size in bytes for the account, overriding any globally configured default maximum size if non-zero. A negative value can be used to have no limit in case there is a limit by default. Attempting to add new messages to an account beyond its maximum total size will result in an error. Useful to prevent a single account from filling storage.')), dom.br(), quotaMessageSize = dom.input(attr.value(formatQuotaSize(config.QuotaMessageSize)))), dom.submitbutton('Save')), async function submit(e) {
}, fieldset = dom.fieldset(dom.label(style({ display: 'inline-block' }), dom.span('Localpart', attr.title('The localpart is the part before the "@"-sign of an email address. If empty, a catchall address is configured for the domain.')), dom.br(), localpart = dom.input()), '@', dom.label(style({ display: 'inline-block' }), dom.span('Domain'), dom.br(), domain = dom.select((domains || []).map(d => dom.option(domainName(d), domainName(d) === config.Domain ? attr.selected('') : [])))), ' ', dom.submitbutton('Add address'))), dom.br(), dom.h2('Limits'), dom.form(fieldsetLimits = dom.fieldset(dom.label(style({ display: 'block', marginBottom: '.5ex' }), dom.span('Maximum outgoing messages per day', attr.title('Maximum number of outgoing messages for this account in a 24 hour window. This limits the damage to recipients and the reputation of this mail server in case of account compromise. Default 1000. MaxOutgoingMessagesPerDay in configuration file.')), dom.br(), maxOutgoingMessagesPerDay = dom.input(attr.type('number'), attr.required(''), attr.value(config.MaxOutgoingMessagesPerDay || 1000))), dom.label(style({ display: 'block', marginBottom: '.5ex' }), dom.span('Maximum first-time recipients per day', attr.title('Maximum number of first-time recipients in outgoing messages for this account in a 24 hour window. This limits the damage to recipients and the reputation of this mail server in case of account compromise. Default 200. MaxFirstTimeRecipientsPerDay in configuration file.')), dom.br(), maxFirstTimeRecipientsPerDay = dom.input(attr.type('number'), attr.required(''), attr.value(config.MaxFirstTimeRecipientsPerDay || 200))), dom.label(style({ display: 'block', marginBottom: '.5ex' }), dom.span('Disk usage quota: Maximum total message size ', attr.title('Default maximum total message size in bytes for the account, overriding any globally configured default maximum size if non-zero. A negative value can be used to have no limit in case there is a limit by default. Attempting to add new messages to an account beyond its maximum total size will result in an error. Useful to prevent a single account from filling storage.')), dom.br(), quotaMessageSize = dom.input(attr.value(formatQuotaSize(config.QuotaMessageSize))), ' Current usage is ', formatQuotaSize(Math.floor(diskUsage / (1024 * 1024)) * 1024 * 1024), '.'), dom.submitbutton('Save')), async function submit(e) {
e.stopPropagation();
e.preventDefault();
fieldsetLimits.disabled = true;