forked from wrenn/wrenn
pptx704
84dd15d22b
Implement a channels system for notifying teams via external providers
(Discord, Slack, Teams, Google Chat, Telegram, Matrix, webhook) when
lifecycle events occur (capsule/template/host state changes).
- Channel CRUD API under /v1/channels (JWT-only auth)
- Test endpoint to verify config before saving (POST /v1/channels/test)
- Secret rotation endpoint (PUT /v1/channels/{id}/config)
- AES-256-GCM encryption for provider secrets (WRENN_ENCRYPTION_KEY)
- Redis stream event publishing from audit logger
- Background dispatcher with consumer group and retry (10s, 30s)
- Webhook delivery with HMAC-SHA256 signing (X-WRENN-SIGNATURE)
- shoutrrr integration for chat providers
- Secrets never exposed in API responses
187 lines
6.6 KiB
Go
187 lines
6.6 KiB
Go
package id
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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"math/big"
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"strings"
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"github.com/google/uuid"
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"github.com/jackc/pgx/v5/pgtype"
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)
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const (
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base36Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
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base36IDLen = 25 // ceil(128 * log2 / log36) = 25 chars for a full UUID
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)
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var base36Base = big.NewInt(36)
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// --- Generation ---
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// newUUID returns a new random (v4) UUID wrapped in pgtype.UUID for direct DB use.
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func newUUID() pgtype.UUID {
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return pgtype.UUID{Bytes: uuid.New(), Valid: true}
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}
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func NewSandboxID() pgtype.UUID { return newUUID() }
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func NewUserID() pgtype.UUID { return newUUID() }
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func NewTeamID() pgtype.UUID { return newUUID() }
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func NewAPIKeyID() pgtype.UUID { return newUUID() }
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func NewHostID() pgtype.UUID { return newUUID() }
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func NewHostTokenID() pgtype.UUID { return newUUID() }
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func NewRefreshTokenID() pgtype.UUID { return newUUID() }
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func NewAuditLogID() pgtype.UUID { return newUUID() }
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func NewBuildID() pgtype.UUID { return newUUID() }
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func NewAdminPermissionID() pgtype.UUID { return newUUID() }
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func NewChannelID() pgtype.UUID { return newUUID() }
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func NewTemplateID() pgtype.UUID { return newUUID() }
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// NewSnapshotName generates a snapshot name: "template-" + 8 hex chars.
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func NewSnapshotName() string {
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return "template-" + hex8()
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}
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// NewTeamSlug generates a unique team slug in the format "xxxxxx-yyyyyy".
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func NewTeamSlug() string {
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b := make([]byte, 6)
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if _, err := rand.Read(b); err != nil {
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panic(fmt.Sprintf("crypto/rand failed: %v", err))
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}
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return hex.EncodeToString(b[:3]) + "-" + hex.EncodeToString(b[3:])
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}
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// NewRegistrationToken generates a 64-char hex token (32 bytes of entropy).
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func NewRegistrationToken() string {
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return hexToken(32)
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}
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// NewRefreshToken generates a 64-char hex token (32 bytes of entropy).
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func NewRefreshToken() string {
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return hexToken(32)
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}
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// --- Formatting (pgtype.UUID → prefixed string for API/RPC output) ---
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const (
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PrefixSandbox = "cl-"
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PrefixUser = "usr-"
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PrefixTeam = "team-"
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PrefixAPIKey = "key-"
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PrefixHost = "host-"
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PrefixHostToken = "htok-"
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PrefixRefreshToken = "hrt-"
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PrefixAuditLog = "log-"
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PrefixBuild = "bld-"
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PrefixAdminPermission = "perm-"
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PrefixChannel = "ch-"
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)
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// UUIDToBase36 encodes 16 UUID bytes as a 25-char base36 string (0-9a-z).
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func UUIDToBase36(b [16]byte) string {
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n := new(big.Int).SetBytes(b[:])
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buf := make([]byte, base36IDLen)
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mod := new(big.Int)
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for i := base36IDLen - 1; i >= 0; i-- {
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n.DivMod(n, base36Base, mod)
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buf[i] = base36Alphabet[mod.Int64()]
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}
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return string(buf)
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}
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// base36ToUUID decodes a 25-char base36 string back to 16 UUID bytes.
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func base36ToUUID(s string) ([16]byte, error) {
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if len(s) != base36IDLen {
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return [16]byte{}, fmt.Errorf("expected %d-char base36 ID, got %d", base36IDLen, len(s))
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}
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n := new(big.Int)
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for _, c := range s {
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idx := strings.IndexRune(base36Alphabet, c)
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if idx < 0 {
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return [16]byte{}, fmt.Errorf("invalid base36 character: %c", c)
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}
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n.Mul(n, base36Base)
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n.Add(n, big.NewInt(int64(idx)))
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}
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b := n.Bytes()
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var out [16]byte
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// big.Int.Bytes() strips leading zeros; right-align into 16-byte array.
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copy(out[16-len(b):], b)
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return out, nil
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}
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func formatUUID(prefix string, id pgtype.UUID) string {
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return prefix + UUIDToBase36(id.Bytes)
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}
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func FormatSandboxID(id pgtype.UUID) string { return formatUUID(PrefixSandbox, id) }
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func FormatUserID(id pgtype.UUID) string { return formatUUID(PrefixUser, id) }
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func FormatTeamID(id pgtype.UUID) string { return formatUUID(PrefixTeam, id) }
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func FormatAPIKeyID(id pgtype.UUID) string { return formatUUID(PrefixAPIKey, id) }
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func FormatHostID(id pgtype.UUID) string { return formatUUID(PrefixHost, id) }
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func FormatHostTokenID(id pgtype.UUID) string { return formatUUID(PrefixHostToken, id) }
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func FormatRefreshTokenID(id pgtype.UUID) string { return formatUUID(PrefixRefreshToken, id) }
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func FormatAuditLogID(id pgtype.UUID) string { return formatUUID(PrefixAuditLog, id) }
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func FormatBuildID(id pgtype.UUID) string { return formatUUID(PrefixBuild, id) }
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func FormatChannelID(id pgtype.UUID) string { return formatUUID(PrefixChannel, id) }
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// --- Parsing (prefixed string from API/RPC input → pgtype.UUID) ---
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func parseUUID(prefix, s string) (pgtype.UUID, error) {
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if !strings.HasPrefix(s, prefix) {
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return pgtype.UUID{}, fmt.Errorf("invalid ID: expected %q prefix, got %q", prefix, s)
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}
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b, err := base36ToUUID(strings.TrimPrefix(s, prefix))
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if err != nil {
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return pgtype.UUID{}, fmt.Errorf("invalid ID %q: %w", s, err)
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}
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return pgtype.UUID{Bytes: b, Valid: true}, nil
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}
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func ParseSandboxID(s string) (pgtype.UUID, error) { return parseUUID(PrefixSandbox, s) }
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func ParseUserID(s string) (pgtype.UUID, error) { return parseUUID(PrefixUser, s) }
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func ParseTeamID(s string) (pgtype.UUID, error) { return parseUUID(PrefixTeam, s) }
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func ParseAPIKeyID(s string) (pgtype.UUID, error) { return parseUUID(PrefixAPIKey, s) }
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func ParseHostID(s string) (pgtype.UUID, error) { return parseUUID(PrefixHost, s) }
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func ParseHostTokenID(s string) (pgtype.UUID, error) { return parseUUID(PrefixHostToken, s) }
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func ParseAuditLogID(s string) (pgtype.UUID, error) { return parseUUID(PrefixAuditLog, s) }
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func ParseBuildID(s string) (pgtype.UUID, error) { return parseUUID(PrefixBuild, s) }
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func ParseChannelID(s string) (pgtype.UUID, error) { return parseUUID(PrefixChannel, s) }
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// --- Well-known IDs ---
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// PlatformTeamID is the all-zeros UUID reserved for platform-owned resources
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// (e.g. base templates, shared infrastructure).
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var PlatformTeamID = pgtype.UUID{Bytes: [16]byte{}, Valid: true}
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// MinimalTemplateID is the all-zeros UUID sentinel for the built-in "minimal"
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// template. When both team_id and template_id are zero, the host agent uses
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// the minimal rootfs at WRENN_DIR/images/minimal/.
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var MinimalTemplateID = pgtype.UUID{Bytes: [16]byte{}, Valid: true}
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// UUIDString converts a pgtype.UUID to a standard hyphenated UUID string
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// (e.g., "6ba7b810-9dad-11d1-80b4-00c04fd430c8"). Used for RPC wire format.
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func UUIDString(id pgtype.UUID) string {
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return uuid.UUID(id.Bytes).String()
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}
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// --- Helpers ---
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func hex8() string {
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b := make([]byte, 4)
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if _, err := rand.Read(b); err != nil {
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panic(fmt.Sprintf("crypto/rand failed: %v", err))
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}
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return hex.EncodeToString(b)
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}
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func hexToken(nBytes int) string {
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b := make([]byte, nBytes)
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if _, err := rand.Read(b); err != nil {
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panic(fmt.Sprintf("crypto/rand failed: %v", err))
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}
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return hex.EncodeToString(b)
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}
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