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feat(moderation): add Tencent TMS as fallback for AI content moderation
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Add Tencent Cloud Text Moderation System (TMS) as a fallback moderation
service when OpenAI is unavailable or returns an error. The service
now checks OpenAI first, and falls back to Tencent TMS if it fails,
providing better reliability for content moderation.

Features:
- New Tencent TMS configuration in config.yaml with environment variable overrides
- New tencent package in internal/pkg/tencent/ with TMS client implementation
- PostAIService now uses dual moderation with OpenAI primary and Tencent fallback
- Strict mode configuration passed to PostAIService for consistent behavior

BREAKING CHANGE: NewPostAIService now requires tencentClient and strictMode
parameters - update wire configuration accordingly.
This commit is contained in:
lafay
2026-04-21 22:31:30 +08:00
parent 90495385cd
commit 38d628c696
10 changed files with 546 additions and 48 deletions
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14
internal/config/config.go
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@@ -23,6 +23,7 @@ type Config struct {
RateLimit RateLimitConfig `mapstructure:"rate_limit"`
Upload UploadConfig `mapstructure:"upload"`
OpenAI OpenAIConfig `mapstructure:"openai"`
TencentTMS TencentTMSConfig `mapstructure:"tencent_tms"`
Email EmailConfig `mapstructure:"email"`
ConversationCache ConversationCacheConfig `mapstructure:"conversation_cache"`
GRPC GRPCConfig `mapstructure:"grpc"`
@@ -111,6 +112,12 @@ func Load(configPath string) (*Config, error) {
viper.SetDefault("openai.moderation_max_images_per_request", 1)
viper.SetDefault("openai.request_timeout", 30)
viper.SetDefault("openai.strict_moderation", false)
viper.SetDefault("tencent_tms.enabled", false)
viper.SetDefault("tencent_tms.secret_id", "")
viper.SetDefault("tencent_tms.secret_key", "")
viper.SetDefault("tencent_tms.region", "ap-guangzhou")
viper.SetDefault("tencent_tms.biz_type", "")
viper.SetDefault("tencent_tms.timeout", 30)
viper.SetDefault("email.enabled", false)
viper.SetDefault("email.host", "")
viper.SetDefault("email.port", 587)
@@ -221,6 +228,13 @@ func Load(configPath string) (*Config, error) {
cfg.OpenAI.RequestTimeout, _ = strconv.Atoi(getEnvOrDefault("APP_OPENAI_REQUEST_TIMEOUT", fmt.Sprintf("%d", cfg.OpenAI.RequestTimeout)))
cfg.OpenAI.Enabled, _ = strconv.ParseBool(getEnvOrDefault("APP_OPENAI_ENABLED", fmt.Sprintf("%t", cfg.OpenAI.Enabled)))
cfg.OpenAI.StrictModeration, _ = strconv.ParseBool(getEnvOrDefault("APP_OPENAI_STRICT_MODERATION", fmt.Sprintf("%t", cfg.OpenAI.StrictModeration)))
// TencentTMS 环境变量覆盖
cfg.TencentTMS.Enabled, _ = strconv.ParseBool(getEnvOrDefault("APP_TENCENT_TMS_ENABLED", fmt.Sprintf("%t", cfg.TencentTMS.Enabled)))
cfg.TencentTMS.SecretID = getEnvOrDefault("APP_TENCENT_TMS_SECRET_ID", cfg.TencentTMS.SecretID)
cfg.TencentTMS.SecretKey = getEnvOrDefault("APP_TENCENT_TMS_SECRET_KEY", cfg.TencentTMS.SecretKey)
cfg.TencentTMS.Region = getEnvOrDefault("APP_TENCENT_TMS_REGION", cfg.TencentTMS.Region)
cfg.TencentTMS.BizType = getEnvOrDefault("APP_TENCENT_TMS_BIZ_TYPE", cfg.TencentTMS.BizType)
cfg.TencentTMS.Timeout, _ = strconv.Atoi(getEnvOrDefault("APP_TENCENT_TMS_TIMEOUT", fmt.Sprintf("%d", cfg.TencentTMS.Timeout)))
cfg.Email.Enabled, _ = strconv.ParseBool(getEnvOrDefault("APP_EMAIL_ENABLED", fmt.Sprintf("%t", cfg.Email.Enabled)))
cfg.Email.Host = getEnvOrDefault("APP_EMAIL_HOST", cfg.Email.Host)
cfg.Email.Port, _ = strconv.Atoi(getEnvOrDefault("APP_EMAIL_PORT", fmt.Sprintf("%d", cfg.Email.Port)))