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http: make Headers be source of truth

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Previously Request and Response had redundant fields for
Referer, UserAgent, and cookies which caused confusion and
bugs.  It also didn't allow us to expand the package over
time, since the way to access fields would be in the Headers
one day and promoted to a field the next day.  That would be
hard to gofix, especially with code ranging over Headers.

After a discussion on the mail package's design with a similar
problem, we've designed to make the Headers be the source of
truth and add accessors instead.

Request:
change: Referer -> Referer()
change: UserAgent -> UserAgent()
change: Cookie -> Cookies()
new: Cookie(name) *Cookie
new: AddCookie(*Cookie)

Response:
change: Cookie -> Cookies()

Cookie:
new: String() string

R=rsc
CC=golang-dev
https://golang.org/cl/4620049
This commit is contained in:
Brad Fitzpatrick 2011-06-16 13:02:28 -07:00
parent 7f3e109d2f
commit 6e9b1a78ff
18 changed files with 314 additions and 225 deletions
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4
src/pkg/http/reverseproxy_test.go
View file

@ -49,10 +49,10 @@ func TestReverseProxy(t *testing.T) {
if g, e := res.Header.Get("X-Foo"), "bar"; g != e {
t.Errorf("got X-Foo %q; expected %q", g, e)
}
if g, e := len(res.SetCookie), 1; g != e {
if g, e := len(res.Header["Set-Cookie"]), 1; g != e {
t.Fatalf("got %d SetCookies, want %d", g, e)
}
if cookie := res.SetCookie[0]; cookie.Name != "flavor" {
if cookie := res.Cookies()[0]; cookie.Name != "flavor" {
t.Errorf("unexpected cookie %q", cookie.Name)
}
bodyBytes, _ := ioutil.ReadAll(res.Body)