69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
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package api
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import (
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"fmt"
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"github.com/gin-gonic/gin"
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"log"
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"net/http"
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"os"
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"strings"
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"time"
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)
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func Auth() gin.HandlerFunc {
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basicAuth, hasBasicAuth := os.LookupEnv("BASIC_AUTH_CREDENTIALS")
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var apiAuths []string
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if list, hasApiAuth := os.LookupEnv("API_CREDENTIALS"); hasApiAuth {
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apiAuths = strings.Split(list, ",")
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}
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return func(c *gin.Context) {
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authHeader := c.GetHeader("Authorization")
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if strings.HasPrefix(authHeader, "Basic ") && hasBasicAuth {
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if strings.TrimPrefix(authHeader, "Basic ") == basicAuth {
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c.Set("secure", "basic")
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return
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}
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}
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if strings.HasPrefix(authHeader, "Api ") && hasBasicAuth {
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key := strings.TrimPrefix(authHeader, "Api ")
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if hasValidApiKey(apiAuths, key) {
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c.Set("secure", "api")
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return
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}
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}
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abort(c, nil, http.StatusUnauthorized, "missing auth")
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}
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}
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func Secure(types ...string) gin.HandlerFunc {
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return func(c *gin.Context) {
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value, exists := c.Get("secure")
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if !exists {
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abort(c, nil, http.StatusUnauthorized, "missing auth")
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} else {
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securityType := value.(string)
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for _, t := range types {
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if t == securityType {
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return
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}
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}
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abort(c, nil, http.StatusUnauthorized, fmt.Sprintf("bad security: received %s type", securityType))
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}
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}
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}
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func hasValidApiKey(auths []string, key string) bool {
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for _, a := range auths {
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if a == key {
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return true
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}
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}
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return false
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}
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func abort(c *gin.Context, err error, statusCode int, message string) {
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log.Printf("Aborted: %v", err.Error())
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c.AbortWithStatusJSON(statusCode, gin.H{"status": statusCode, "created": time.Now(), "message": message})
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}
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