diff options
author | vitalyisaev <vitalyisaev@ydb.tech> | 2023-12-12 21:55:07 +0300 |
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committer | vitalyisaev <vitalyisaev@ydb.tech> | 2023-12-12 22:25:10 +0300 |
commit | 4967f99474a4040ba150eb04995de06342252718 (patch) | |
tree | c9c118836513a8fab6e9fcfb25be5d404338bca7 /vendor/github.com/aws/smithy-go/transport/http/host.go | |
parent | 2ce9cccb9b0bdd4cd7a3491dc5cbf8687cda51de (diff) | |
download | ydb-4967f99474a4040ba150eb04995de06342252718.tar.gz |
YQ Connector: prepare code base for S3 integration
1. Кодовая база Коннектора переписана с помощью Go дженериков так, чтобы добавление нового источника данных (в частности S3 + csv) максимально переиспользовало имеющийся код (чтобы сохранялась логика нарезания на блоки данных, учёт трафика и пр.)
2. API Connector расширено для работы с S3, но ещё пока не протестировано.
Diffstat (limited to 'vendor/github.com/aws/smithy-go/transport/http/host.go')
-rw-r--r-- | vendor/github.com/aws/smithy-go/transport/http/host.go | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/vendor/github.com/aws/smithy-go/transport/http/host.go b/vendor/github.com/aws/smithy-go/transport/http/host.go new file mode 100644 index 0000000000..6b290fec03 --- /dev/null +++ b/vendor/github.com/aws/smithy-go/transport/http/host.go @@ -0,0 +1,89 @@ +package http + +import ( + "fmt" + "net" + "strconv" + "strings" +) + +// ValidateEndpointHost validates that the host string passed in is a valid RFC +// 3986 host. Returns error if the host is not valid. +func ValidateEndpointHost(host string) error { + var errors strings.Builder + var hostname string + var port string + var err error + + if strings.Contains(host, ":") { + hostname, port, err = net.SplitHostPort(host) + if err != nil { + errors.WriteString(fmt.Sprintf("\n endpoint %v, failed to parse, got ", host)) + errors.WriteString(err.Error()) + } + + if !ValidPortNumber(port) { + errors.WriteString(fmt.Sprintf("port number should be in range [0-65535], got %v", port)) + } + } else { + hostname = host + } + + labels := strings.Split(hostname, ".") + for i, label := range labels { + if i == len(labels)-1 && len(label) == 0 { + // Allow trailing dot for FQDN hosts. + continue + } + + if !ValidHostLabel(label) { + errors.WriteString("\nendpoint host domain labels must match \"[a-zA-Z0-9-]{1,63}\", but found: ") + errors.WriteString(label) + } + } + + if len(hostname) == 0 && len(port) != 0 { + errors.WriteString("\nendpoint host with port must not be empty") + } + + if len(hostname) > 255 { + errors.WriteString(fmt.Sprintf("\nendpoint host must be less than 255 characters, but was %d", len(hostname))) + } + + if len(errors.String()) > 0 { + return fmt.Errorf("invalid endpoint host%s", errors.String()) + } + return nil +} + +// ValidPortNumber returns whether the port is valid RFC 3986 port. +func ValidPortNumber(port string) bool { + i, err := strconv.Atoi(port) + if err != nil { + return false + } + + if i < 0 || i > 65535 { + return false + } + return true +} + +// ValidHostLabel returns whether the label is a valid RFC 3986 host abel. +func ValidHostLabel(label string) bool { + if l := len(label); l == 0 || l > 63 { + return false + } + for _, r := range label { + switch { + case r >= '0' && r <= '9': + case r >= 'A' && r <= 'Z': + case r >= 'a' && r <= 'z': + case r == '-': + default: + return false + } + } + + return true +} |