223f3cdc42
The journal-milter, until now a pure monitor, now refuses a message with a
4xx tempfail (RespTempFail/451) at MAIL FROM when a per-domain or per-
application limit is exceeded. Key is the client IP; the count is
COUNT(DISTINCT queue_id) over a sliding window reusing the send log; the
limit applies only when a non-empty IP binding matches the client (empty
binding => level-1 only, per spec 7.4). Enforcement is fail-open on the
milter's own errors — a limiter malfunction never blocks mail, and Postfix's
level-1 anvil limit stays the independent backstop. Refused messages are
recorded in send_log with status "rejected" for UI visibility.
- store/ratelimits.go: RateLimit type (+Active/AllowsIP), id-keyed get/set/
delete for the panel, name/login-keyed lookup + windowed distinct-message
count for the milter, DeleteRateLimitsForDomain. No migration — the
rate_limits table has existed since Phase 2.
- milter: enforce at MailFrom, fail-open helper overLimit, InsertRejected.
- web: server-side validated IP/ceiling/window forms on the domain page and
per application; routes POST /domains/{id}/ratelimit and
/applications/{aid}/ratelimit. Milter reads rows live, so no reload.
- domain/app services clear limits on deletion (rate_limits has no FK cascade).
Unit tests + container e2e (p8) green: refusal on both scopes, unregistered
IP ignored, fail-open with the panel stopped.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
187 lines
7.7 KiB
HTML
187 lines
7.7 KiB
HTML
{{define "content"}}
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<div class="topbar">
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<h1>{{.Domain.Name}}</h1>
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<div class="actions muted">
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<span>{{.User}}</span>
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<form class="inline" method="post" action="/logout">
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<button type="submit">Sign out</button>
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</form>
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</div>
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</div>
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<a class="back" href="/">← All domains</a>
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{{if .Flash}}<div class="flash">{{.Flash}}</div>{{end}}
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{{if .RateLimitErr}}<div class="flash error">{{.RateLimitErr}}</div>{{end}}
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{{if .NewCred}}
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<div class="card credential">
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<h2>New application password</h2>
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<p class="muted">This password is shown <strong>once only</strong> and is not
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stored. Copy it now — if it is lost, regenerate a new one.</p>
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<label>Login</label>
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<span class="code">{{.NewCred.Login}}</span>
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<label>Password</label>
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<span class="code">{{.NewCred.Password}}</span>
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</div>
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{{end}}
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<div class="card">
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<h2>DKIM DNS record</h2>
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<p class="muted">Publish this TXT record in the DNS for <strong>{{.Domain.Name}}</strong>.
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It is not a secret and can be viewed at any time.</p>
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<label>Host / name</label>
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<span class="code">{{.Record.Name}}</span>
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<label>Type</label>
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<span class="code">TXT</span>
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<label>Value</label>
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<span class="code">{{.Record.Value}}</span>
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<p class="muted">Also configure SPF and DMARC for the domain (see the
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documentation). Mail is signed with selector <strong>{{.Domain.DKIMSelector}}</strong>.</p>
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</div>
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<div class="card">
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<h2>Applications</h2>
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<p class="muted">Each application is a SASL login/password an app or script
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uses to send mail as this domain. A login may send from any address of the
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domain (<em>wildcard</em>) or only from a fixed list of addresses.</p>
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{{if .Apps}}
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<table>
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<thead>
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<tr><th>Login</th><th>Mode</th><th>Addresses</th><th></th></tr>
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</thead>
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<tbody>
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{{range .Apps}}
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<tr>
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<td class="code">{{.Login}}</td>
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<td>{{if eq .AddressMode $.Wildcard}}Any address (@{{$.Domain.Name}}){{else}}List{{end}}</td>
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<td class="muted">
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{{if eq .AddressMode $.Wildcard}}*@{{$.Domain.Name}}{{else}}
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{{range $i, $a := .Addresses}}{{if $i}}, {{end}}{{$a}}{{end}}
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{{end}}
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</td>
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<td class="actions">
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<details>
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<summary>Edit mode</summary>
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<form method="post" action="/applications/{{.ID}}/mode">
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<label>Address mode</label>
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<select name="mode">
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<option value="{{$.Wildcard}}" {{if eq .AddressMode $.Wildcard}}selected{{end}}>Any address of the domain</option>
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<option value="{{$.List}}" {{if eq .AddressMode $.List}}selected{{end}}>Specific addresses (list)</option>
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</select>
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<label>Addresses (for list mode; one per line or comma-separated)</label>
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<textarea name="addresses" rows="3" placeholder="alerts@{{$.Domain.Name}}">{{range $i, $a := .Addresses}}{{if $i}}
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{{end}}{{$a}}{{end}}</textarea>
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<button type="submit">Save mode</button>
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</form>
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</details>
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<details>
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<summary>Rate limit{{if .HasLimit}} (active){{end}}</summary>
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<form method="post" action="/applications/{{.ID}}/ratelimit">
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<label>Expected client IPs (one per line or comma-separated)</label>
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<textarea name="allowed_ips" rows="2" placeholder="203.0.113.10">{{.IPsText}}</textarea>
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<label>Message limit</label>
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<input name="max_messages" type="number" min="1" value="{{.MaxText}}" placeholder="500">
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<label>Window (seconds)</label>
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<input name="window_seconds" type="number" min="1" value="{{.WindowVal}}">
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<button type="submit">Save limit</button>
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</form>
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{{if .HasLimit}}
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<form class="inline" method="post" action="/applications/{{.ID}}/ratelimit"
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onsubmit="return confirm('Remove the rate limit for {{.Login}}? Only the global level-1 limit will apply.')">
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<input type="hidden" name="clear" value="1">
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<button type="submit" class="danger">Remove limit</button>
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</form>
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{{end}}
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</details>
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<form class="inline" method="post" action="/applications/{{.ID}}/password"
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onsubmit="return confirm('Regenerate the password for {{.Login}}? The current password stops working immediately.')">
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<button type="submit">New password</button>
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</form>
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<form class="inline" method="post" action="/applications/{{.ID}}/delete"
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onsubmit="return confirm('Delete application {{.Login}}? Its credentials stop working immediately.')">
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<button type="submit" class="danger">Delete</button>
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</form>
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</td>
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</tr>
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{{end}}
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</tbody>
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</table>
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{{else}}
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<p class="muted">No applications yet. Create one below.</p>
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{{end}}
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</div>
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<div class="card">
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<h2>Sending rate limit (domain)</h2>
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<p class="muted">Optional level-2 limit (spec 7.4): cap how many messages this
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domain may send from its expected client IP(s) within a time window, summed
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across all its applications. It counts messages — one message to many
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recipients counts once. Leave the IP list empty to disable it and rely only on
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the global level-1 limit. Applications that send from changing IPs should be
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left unbound here.</p>
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<p class="muted">Status:
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{{if .DomainHasRL}}<strong>active</strong>{{else}}inactive (level-1 only){{end}}.</p>
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<form method="post" action="/domains/{{.Domain.ID}}/ratelimit">
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<label for="d_ips">Expected client IPs (one per line or comma-separated)</label>
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<textarea id="d_ips" name="allowed_ips" rows="2"
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placeholder="203.0.113.10">{{.DomainRLIPs}}</textarea>
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<label for="d_max">Message limit</label>
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<input id="d_max" name="max_messages" type="number" min="1"
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value="{{.DomainRLMax}}" placeholder="1000">
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<label for="d_win">Window (seconds)</label>
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<input id="d_win" name="window_seconds" type="number" min="1" value="{{.DomainRLWin}}">
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<button type="submit">Save limit</button>
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</form>
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{{if .DomainHasRL}}
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<form class="inline" method="post" action="/domains/{{.Domain.ID}}/ratelimit"
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onsubmit="return confirm('Remove the domain rate limit? Only the global level-1 limit will apply.')">
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<input type="hidden" name="clear" value="1">
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<button type="submit" class="danger">Remove limit</button>
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</form>
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{{end}}
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</div>
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<div class="card">
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<h2>Add an application</h2>
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<form method="post" action="/domains/{{.Domain.ID}}/applications">
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<label for="login">Login</label>
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<input id="login" name="login" type="text" placeholder="prod-server"
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autocomplete="off" autocapitalize="none" spellcheck="false"
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value="{{.FormLogin}}" required>
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<label for="mode">Address mode</label>
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<select id="mode" name="mode">
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<option value="{{.Wildcard}}" {{if eq .FormMode .Wildcard}}selected{{end}}>Any address of the domain</option>
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<option value="{{.List}}" {{if eq .FormMode .List}}selected{{end}}>Specific addresses (list)</option>
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</select>
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<label for="addresses">Addresses (for list mode; one per line or comma-separated)</label>
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<textarea id="addresses" name="addresses" rows="3"
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placeholder="alerts@{{.Domain.Name}}">{{.FormAddrs}}</textarea>
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{{if .Error}}<p class="error">{{.Error}}</p>{{end}}
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<button type="submit">Create application</button>
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</form>
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<p class="muted">A strong password is generated and shown once. The login must
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be unique across all domains and may contain letters, digits, '.', '-' and '_'.</p>
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</div>
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<div class="card">
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<h2>Danger zone</h2>
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<p class="muted">Deleting this domain also deletes its DKIM key and every
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application bound to it.</p>
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<a class="danger" href="/domains/{{.Domain.ID}}/delete">Delete domain</a>
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</div>
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{{end}}
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