| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package sqladapter |
| 4 | |
| 5 | import ( |
| 6 | "fmt" |
| 7 | "net/url" |
| 8 | "strings" |
| 9 | |
| 10 | "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/cloudauth" |
| 11 | ) |
| 12 | |
| 13 | const ( |
| 14 | MSSQLDriverName = "sqlserver" |
| 15 | MSSQLAzureDriverName = "azuresql" |
| 16 | |
| 17 | mssqlFedAuthDefault = "ActiveDirectoryDefault" |
| 18 | mssqlFedAuthManagedIdentity = "ActiveDirectoryManagedIdentity" |
| 19 | mssqlFedAuthServicePrincipal = "ActiveDirectoryServicePrincipal" |
| 20 | ) |
| 21 | |
| 22 | func MSSQLDriver(cfg cloudauth.Config) string { |
| 23 | if cfg.IsProvider(cloudauth.ProviderAzureAD) { |
| 24 | return MSSQLAzureDriverName |
| 25 | } |
| 26 | return MSSQLDriverName |
| 27 | } |
| 28 | |
| 29 | func BuildMSSQLAzureADDSN(baseDSN string, cfg cloudauth.Config) (string, error) { |
| 30 | if err := cfg.Validate(); err != nil { |
| 31 | return "", err |
| 32 | } |
| 33 | if !cfg.IsProvider(cloudauth.ProviderAzureAD) { |
| 34 | return baseDSN, nil |
| 35 | } |
| 36 | |
| 37 | aadCfg := cloudauth.AzureADAuthConfig{} |
| 38 | if cfg.AzureAD != nil { |
| 39 | aadCfg = *cfg.AzureAD |
| 40 | } |
| 41 | |
| 42 | u, err := url.Parse(baseDSN) |
| 43 | if err != nil { |
| 44 | return "", fmt.Errorf("parsing SQL Server DSN: %w", err) |
| 45 | } |
| 46 | if !strings.EqualFold(u.Scheme, "sqlserver") { |
| 47 | return "", fmt.Errorf("cloud_auth.provider %q requires URL DSN with sqlserver scheme, got %q", cloudauth.ProviderAzureAD, u.Scheme) |
| 48 | } |
| 49 | |
| 50 | q := u.Query() |
| 51 | for key := range q { |
| 52 | switch strings.ToLower(key) { |
| 53 | case "fedauth", "user id", "password": |
| 54 | q.Del(key) |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | switch aadCfg.NormalizedMode() { |
| 59 | case cloudauth.AzureADAuthModeServicePrincipal: |
| 60 | sp := aadCfg.ModeServicePrincipal |
| 61 | if sp == nil { |
| 62 | return "", fmt.Errorf("unsupported cloud_auth.azure_ad.mode %q", aadCfg.Mode) |
| 63 | } |
| 64 | q.Set("fedauth", mssqlFedAuthServicePrincipal) |
| 65 | clientID := strings.TrimSpace(sp.ClientID) |
| 66 | clientSecret := strings.TrimSpace(sp.ClientSecret) |
| 67 | userID := clientID |
| 68 | if tenantID := strings.TrimSpace(sp.TenantID); tenantID != "" { |
| 69 | userID = userID + "@" + tenantID |
| 70 | } |
| 71 | u.User = url.UserPassword(userID, clientSecret) |
| 72 | case cloudauth.AzureADAuthModeManagedIdentity: |
| 73 | mi := aadCfg.ModeManagedIdentity |
| 74 | q.Set("fedauth", mssqlFedAuthManagedIdentity) |
| 75 | u.User = nil |
| 76 | if mi != nil && strings.TrimSpace(mi.ClientID) != "" { |
| 77 | id := strings.TrimSpace(mi.ClientID) |
| 78 | q.Set("user id", id) |
| 79 | } |
| 80 | case cloudauth.AzureADAuthModeDefault: |
| 81 | q.Set("fedauth", mssqlFedAuthDefault) |
| 82 | u.User = nil |
| 83 | default: |
| 84 | return "", fmt.Errorf("unsupported cloud_auth.azure_ad.mode %q", aadCfg.Mode) |
| 85 | } |
| 86 | |
| 87 | u.RawQuery = q.Encode() |
| 88 | |
| 89 | return u.String(), nil |
| 90 | } |