Add EscapeURL to the ASCII escape methods.EscapeURL escapes all forbidden ascii characters in an URL and repalces spaces with '+'.

Test=Escape.EscapeUrl
BUG=23029
Review URL: http://codereview.chromium.org/244056

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27713 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 31 insertions, 1 deletions

diff --git a/net/base/escape.cc b/net/base/escape.cc
index f836afb6..18b2e0b 100644
--- a/net/base/escape.cc
+++ b/net/base/escape.cc
@@ -186,6 +186,16 @@ std::string EscapePath(const std::string& path) {
   return Escape(path, kPathCharmap, false);
 }
 
+// non-printable, non-7bit, and (including space) ?>=<;+'&%$#"![\]^`{|}
+static const Charmap kUrlEscape(
+  0xffffffffL, 0xf80008fdL, 0x78000001L, 0xb8000001L,
+  0xffffffffL, 0xffffffffL, 0xffffffffL, 0xffffffffL
+);
+
+std::string EscapeUrl(const std::string& path) {
+  return Escape(path, kUrlEscape, true);
+}
+
 // non-7bit
 static const Charmap kNonASCIICharmap(
   0x00000000L, 0x00000000L, 0x00000000L, 0x00000000L,
diff --git a/net/base/escape.h b/net/base/escape.h
index 17f8646..597755f 100644
--- a/net/base/escape.h
+++ b/net/base/escape.h
@@ -11,10 +11,15 @@
 
 // Escaping --------------------------------------------------------------------
 
-// Escape a file or url path.  This includes:
+// Escape a file.  This includes:
 // non-printable, non-7bit, and (including space)  "#%:<>?[\]^`{|}
 std::string EscapePath(const std::string& path);
 
+// Escape an url.  This includes:
+// non-printable, non-7bit, and (including space)  ?>=<;+'&%$#"![\]^`{|}
+// Space is escaped as + and other special characters as %XX (hex).
+std::string EscapeUrl(const std::string& path);
+
 // Escape all non-ASCII input.
 std::string EscapeNonASCII(const std::string& input);
 
diff --git a/net/base/escape_unittest.cc b/net/base/escape_unittest.cc
index 8c31d41..6601edc 100644
--- a/net/base/escape_unittest.cc
+++ b/net/base/escape_unittest.cc
@@ -107,6 +107,21 @@ TEST(Escape, EscapePath) {
     "%7B%7C%7D~%7F%80%FF");
 }
 
+TEST(Escape, EscapeUrl) {
+  ASSERT_EQ(
+    // Most of the character space we care about, un-escaped
+    EscapeUrl(
+      "\x02\n\x1d !\"#$%&'()*+,-./0123456789:;"
+      "<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+      "[\\]^_`abcdefghijklmnopqrstuvwxyz"
+      "{|}~\x7f\x80\xff"),
+    // Escaped
+    "%02%0A%1D+!%22%23%24%25%26%27()*%2B,-./0123456789:%3B"
+    "%3C%3D%3E%3F%40ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+    "%5B%5C%5D%5E_%60abcdefghijklmnopqrstuvwxyz"
+    "%7B%7C%7D~%7F%80%FF");
+}
+
 TEST(Escape, UnescapeURLComponent) {
   const UnescapeURLCase unescape_cases[] = {
     {"", UnescapeRule::NORMAL, ""},