diff options
Diffstat (limited to 'headers/headers.go')
| -rw-r--r-- | headers/headers.go | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/headers/headers.go b/headers/headers.go deleted file mode 100644 index 33127a8..0000000 --- a/headers/headers.go +++ /dev/null @@ -1,91 +0,0 @@ -/****************************************************************************** -* -* Copyright 2018 Stefan Majewsky <majewsky@gmx.net> -* -* 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 headers contains helper types for the type-safe representation of -//headers on Swift accounts/containers/objects. -package headers - -import ( - "net/http" - "net/textproto" -) - -//Headers works like http.Header, but does not allow multiple values per key. -// -//If you write the map directly, without using the provided methods, you must -//normalize all keys with textproto.CanonicalMIMEHeaderKey(). Otherwise, the -//results are undefined. -type Headers map[string]string - -//Clear sets the value for the specified header to the empty string. When the -//Headers instance is then sent to the server with Update(), the server will -//delete the value for that header; cf. Del(). -func (h Headers) Clear(key string) { - h.Set(key, "") -} - -//Del deletes a key from the Headers instance. When the Headers instance -//is then sent to the server with Update(), Del() has different effects -//depending on context because of Swift's inconsistent API: -// -//For most writable attributes, a key which has been deleted with Del() will -//remain unchanged on the server. To remove the key on the server, use Clear() -//instead. -// -//For object metadata (but not other object attributes), deleting a key will -//cause that key to be deleted on the server. Del() is identical to Clear() in -//this case. -func (h Headers) Del(key string) { - k := textproto.CanonicalMIMEHeaderKey(key) - delete(h, k) -} - -//Get returns the value for the specified header. -func (h Headers) Get(key string) string { - if h == nil { - return "" - } - k := textproto.CanonicalMIMEHeaderKey(key) - return h[k] -} - -//Set sets a new value for the specified header, possibly overwriting a -//previous value. -func (h Headers) Set(key, value string) { - k := textproto.CanonicalMIMEHeaderKey(key) - h[k] = value -} - -//ToHTTP converts this map into a http.Header. -func (h Headers) ToHTTP() http.Header { - dest := make(http.Header, len(h)) - for k, v := range h { - dest.Set(k, v) - } - return dest -} - -//FromHTTP populates this map with the headers in the given http.Header. When a -//header has multiple values, every value but the first one will be discarded. -func (h Headers) FromHTTP(src http.Header) { - for k, v := range src { - if len(v) > 0 { - h.Set(k, v[0]) - } - } -} |
