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Diffstat (limited to 'vendor/google.golang.org/grpc/internal/metadata/metadata.go')
-rw-r--r--vendor/google.golang.org/grpc/internal/metadata/metadata.go132
1 files changed, 0 insertions, 132 deletions
diff --git a/vendor/google.golang.org/grpc/internal/metadata/metadata.go b/vendor/google.golang.org/grpc/internal/metadata/metadata.go
deleted file mode 100644
index 900bfb716..000000000
--- a/vendor/google.golang.org/grpc/internal/metadata/metadata.go
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- *
- * Copyright 2020 gRPC authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-// Package metadata contains functions to set and get metadata from addresses.
-//
-// This package is experimental.
-package metadata
-
-import (
- "fmt"
- "strings"
-
- "google.golang.org/grpc/metadata"
- "google.golang.org/grpc/resolver"
-)
-
-type mdKeyType string
-
-const mdKey = mdKeyType("grpc.internal.address.metadata")
-
-type mdValue metadata.MD
-
-func (m mdValue) Equal(o any) bool {
- om, ok := o.(mdValue)
- if !ok {
- return false
- }
- if len(m) != len(om) {
- return false
- }
- for k, v := range m {
- ov := om[k]
- if len(ov) != len(v) {
- return false
- }
- for i, ve := range v {
- if ov[i] != ve {
- return false
- }
- }
- }
- return true
-}
-
-// Get returns the metadata of addr.
-func Get(addr resolver.Address) metadata.MD {
- attrs := addr.Attributes
- if attrs == nil {
- return nil
- }
- md, _ := attrs.Value(mdKey).(mdValue)
- return metadata.MD(md)
-}
-
-// Set sets (overrides) the metadata in addr.
-//
-// When a SubConn is created with this address, the RPCs sent on it will all
-// have this metadata.
-func Set(addr resolver.Address, md metadata.MD) resolver.Address {
- addr.Attributes = addr.Attributes.WithValue(mdKey, mdValue(md))
- return addr
-}
-
-// Validate validates every pair in md with ValidatePair.
-func Validate(md metadata.MD) error {
- for k, vals := range md {
- if err := ValidatePair(k, vals...); err != nil {
- return err
- }
- }
- return nil
-}
-
-// hasNotPrintable return true if msg contains any characters which are not in %x20-%x7E
-func hasNotPrintable(msg string) bool {
- // for i that saving a conversion if not using for range
- for i := 0; i < len(msg); i++ {
- if msg[i] < 0x20 || msg[i] > 0x7E {
- return true
- }
- }
- return false
-}
-
-// ValidatePair validate a key-value pair with the following rules (the pseudo-header will be skipped) :
-//
-// - key must contain one or more characters.
-// - the characters in the key must be contained in [0-9 a-z _ - .].
-// - if the key ends with a "-bin" suffix, no validation of the corresponding value is performed.
-// - the characters in the every value must be printable (in [%x20-%x7E]).
-func ValidatePair(key string, vals ...string) error {
- // key should not be empty
- if key == "" {
- return fmt.Errorf("there is an empty key in the header")
- }
- // pseudo-header will be ignored
- if key[0] == ':' {
- return nil
- }
- // check key, for i that saving a conversion if not using for range
- for i := 0; i < len(key); i++ {
- r := key[i]
- if !(r >= 'a' && r <= 'z') && !(r >= '0' && r <= '9') && r != '.' && r != '-' && r != '_' {
- return fmt.Errorf("header key %q contains illegal characters not in [0-9a-z-_.]", key)
- }
- }
- if strings.HasSuffix(key, "-bin") {
- return nil
- }
- // check value
- for _, val := range vals {
- if hasNotPrintable(val) {
- return fmt.Errorf("header key %q contains value with non-printable ASCII characters", key)
- }
- }
- return nil
-}