Imported Upstream version 1.4upstream/1.4

1 files changed, 0 insertions, 105 deletions

diff --git a/src/pkg/html/template/url.go b/src/pkg/html/template/url.go
deleted file mode 100644
index 2ca76bf38..000000000
--- a/src/pkg/html/template/url.go
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package template
-
-import (
-	"bytes"
-	"fmt"
-	"strings"
-)
-
-// urlFilter returns its input unless it contains an unsafe protocol in which
-// case it defangs the entire URL.
-func urlFilter(args ...interface{}) string {
-	s, t := stringify(args...)
-	if t == contentTypeURL {
-		return s
-	}
-	if i := strings.IndexRune(s, ':'); i >= 0 && strings.IndexRune(s[:i], '/') < 0 {
-		protocol := strings.ToLower(s[:i])
-		if protocol != "http" && protocol != "https" && protocol != "mailto" {
-			return "#" + filterFailsafe
-		}
-	}
-	return s
-}
-
-// urlEscaper produces an output that can be embedded in a URL query.
-// The output can be embedded in an HTML attribute without further escaping.
-func urlEscaper(args ...interface{}) string {
-	return urlProcessor(false, args...)
-}
-
-// urlEscaper normalizes URL content so it can be embedded in a quote-delimited
-// string or parenthesis delimited url(...).
-// The normalizer does not encode all HTML specials. Specifically, it does not
-// encode '&' so correct embedding in an HTML attribute requires escaping of
-// '&' to '&amp;'.
-func urlNormalizer(args ...interface{}) string {
-	return urlProcessor(true, args...)
-}
-
-// urlProcessor normalizes (when norm is true) or escapes its input to produce
-// a valid hierarchical or opaque URL part.
-func urlProcessor(norm bool, args ...interface{}) string {
-	s, t := stringify(args...)
-	if t == contentTypeURL {
-		norm = true
-	}
-	var b bytes.Buffer
-	written := 0
-	// The byte loop below assumes that all URLs use UTF-8 as the
-	// content-encoding. This is similar to the URI to IRI encoding scheme
-	// defined in section 3.1 of  RFC 3987, and behaves the same as the
-	// EcmaScript builtin encodeURIComponent.
-	// It should not cause any misencoding of URLs in pages with
-	// Content-type: text/html;charset=UTF-8.
-	for i, n := 0, len(s); i < n; i++ {
-		c := s[i]
-		switch c {
-		// Single quote and parens are sub-delims in RFC 3986, but we
-		// escape them so the output can be embedded in single
-		// quoted attributes and unquoted CSS url(...) constructs.
-		// Single quotes are reserved in URLs, but are only used in
-		// the obsolete "mark" rule in an appendix in RFC 3986
-		// so can be safely encoded.
-		case '!', '#', '$', '&', '*', '+', ',', '/', ':', ';', '=', '?', '@', '[', ']':
-			if norm {
-				continue
-			}
-		// Unreserved according to RFC 3986 sec 2.3
-		// "For consistency, percent-encoded octets in the ranges of
-		// ALPHA (%41-%5A and %61-%7A), DIGIT (%30-%39), hyphen (%2D),
-		// period (%2E), underscore (%5F), or tilde (%7E) should not be
-		// created by URI producers
-		case '-', '.', '_', '~':
-			continue
-		case '%':
-			// When normalizing do not re-encode valid escapes.
-			if norm && i+2 < len(s) && isHex(s[i+1]) && isHex(s[i+2]) {
-				continue
-			}
-		default:
-			// Unreserved according to RFC 3986 sec 2.3
-			if 'a' <= c && c <= 'z' {
-				continue
-			}
-			if 'A' <= c && c <= 'Z' {
-				continue
-			}
-			if '0' <= c && c <= '9' {
-				continue
-			}
-		}
-		b.WriteString(s[written:i])
-		fmt.Fprintf(&b, "%%%02x", c)
-		written = i + 1
-	}
-	if written == 0 {
-		return s
-	}
-	b.WriteString(s[written:])
-	return b.String()
-}