Parse HPKP report-uri and persist in TransportSecurityPersister

This CL parses the report-uri attribute on HPKP headers and stores them
in TransportSecurityPersister.

This is CL #1.
CL #2: crrev.com/1212973002 (add net::CertificateReportSender)
CL #3: crrev.com/1212613004 (build and send HPKP reports)

BUG=445793

Committed: https://crrev.com/1320e36d908427d615357df1630348bfb38cb5c4
Cr-Commit-Position: refs/heads/master@{#339667}

Review URL: https://codereview.chromium.org/1211363005

Cr-Commit-Position: refs/heads/master@{#340490}

1 files changed, 19 insertions, 8 deletions

diff --git a/net/http/http_util.h b/net/http/http_util.h
index 79a41ac..1bb3c93 100644
--- a/net/http/http_util.h
+++ b/net/http/http_util.h
@@ -29,14 +29,6 @@ class NET_EXPORT HttpUtil {
   // is stripped (username, password, reference).
   static std::string SpecForRequest(const GURL& url);
 
-  // Locates the next occurance of delimiter in line, skipping over quoted
-  // strings (e.g., commas will not be treated as delimiters if they appear
-  // within a quoted string).  Returns the offset of the found delimiter or
-  // line.size() if no delimiter was found.
-  static size_t FindDelimiter(const std::string& line,
-                              size_t search_start,
-                              char delimiter);
-
   // Parses the value of a Content-Type header.  The resulting mime_type and
   // charset values are normalized to lowercase.  The mime_type and charset
   // output values are only modified if the content_type_str contains a mime
@@ -323,9 +315,22 @@ class NET_EXPORT HttpUtil {
   // calls to GetNext() or after the NameValuePairsIterator is destroyed.
   class NET_EXPORT NameValuePairsIterator {
    public:
+    // Whether or not values are optional. VALUES_OPTIONAL allows
+    // e.g. name1=value1;name2;name3=value3, whereas VALUES_NOT_OPTIONAL
+    // will treat it as a parse error because name2 does not have a
+    // corresponding equals sign.
+    enum OptionalValues { VALUES_OPTIONAL, VALUES_NOT_OPTIONAL };
+
+    NameValuePairsIterator(std::string::const_iterator begin,
+                           std::string::const_iterator end,
+                           char delimiter,
+                           OptionalValues optional_values);
+
+    // Treats values as not optional by default (VALUES_NOT_OPTIONAL).
     NameValuePairsIterator(std::string::const_iterator begin,
                            std::string::const_iterator end,
                            char delimiter);
+
     ~NameValuePairsIterator();
 
     // Advances the iterator to the next pair, if any.  Returns true if there
@@ -353,6 +358,8 @@ class NET_EXPORT HttpUtil {
                                                               value_end_);
     }
 
+    bool value_is_quoted() const { return value_is_quoted_; }
+
     // The value before unquoting (if any).
     std::string raw_value() const { return std::string(value_begin_,
                                                        value_end_); }
@@ -373,6 +380,10 @@ class NET_EXPORT HttpUtil {
     std::string unquoted_value_;
 
     bool value_is_quoted_;
+
+    // True if values are required for each name/value pair; false if a
+    // name is permitted to appear without a corresponding value.
+    bool values_optional_;
   };
 };