feat(server): API relay gateway backend M0-M4

Gin + GORM + pure-Go SQLite. Users/auth (JWT), API key management with quotas, proxy gateway with weighted channel failover and health checks, usage/billing ledger, cross-protocol conversion (Anthropic Messages / OpenAI Chat Completions / OpenAI Responses), and channel/model admin API. Channels declare native API formats and auto-convert the rest. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-15 21:05:02 +08:00
parent b0c7439c01
commit d0e31b198f
45 changed files with 6222 additions and 0 deletions
@@ -0,0 +1,62 @@
+package password
+
+import (
+	"crypto/rand"
+	"crypto/subtle"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"strings"
+
+	"golang.org/x/crypto/argon2"
+)
+
+const (
+	argonTime    = 3
+	argonMemory  = 64 * 1024
+	argonThreads = 2
+	argonKeyLen  = 32
+	argonSaltLen = 16
+)
+
+// Hash hashes a plaintext password with argon2id.
+func Hash(plain string) (string, error) {
+	salt := make([]byte, argonSaltLen)
+	if _, err := rand.Read(salt); err != nil {
+		return "", err
+	}
+	key := argon2.IDKey([]byte(plain), salt, argonTime, argonMemory, argonThreads, argonKeyLen)
+	enc := base64.RawStdEncoding
+	return fmt.Sprintf("$argon2id$v=%d$m=%d,t=%d,p=%d$%s$%s",
+		argon2.Version, argonMemory, argonTime, argonThreads,
+		enc.EncodeToString(salt), enc.EncodeToString(key)), nil
+}
+
+// Verify checks a plaintext password against an argon2id hash string.
+func Verify(plain, encoded string) (bool, error) {
+	parts := strings.Split(encoded, "$")
+	if len(parts) != 6 || parts[1] != "argon2id" {
+		return false, errors.New("malformed password hash")
+	}
+	var version int
+	var memory uint32
+	var time_ uint32
+	var threads uint8
+	if _, err := fmt.Sscanf(parts[2], "v=%d", &version); err != nil {
+		return false, err
+	}
+	if _, err := fmt.Sscanf(parts[3], "m=%d,t=%d,p=%d", &memory, &time_, &threads); err != nil {
+		return false, err
+	}
+	enc := base64.RawStdEncoding
+	salt, err := enc.DecodeString(parts[4])
+	if err != nil {
+		return false, err
+	}
+	want, err := enc.DecodeString(parts[5])
+	if err != nil {
+		return false, err
+	}
+	got := argon2.IDKey([]byte(plain), salt, time_, memory, threads, uint32(len(want)))
+	return subtle.ConstantTimeCompare(got, want) == 1, nil
+}