1 files changed, 276 insertions, 0 deletions
diff --git a/netwerk/protocol/http/nsHttp.h b/netwerk/protocol/http/nsHttp.h
new file mode 100644
index 0000000000..a20637808a
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+++ b/netwerk/protocol/http/nsHttp.h
@@ -0,0 +1,276 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set ts=4 sw=4 sts=4 et cin: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsHttp_h__
+#define nsHttp_h__
+
+#include <stdint.h>
+#include "prtime.h"
+#include "nsAutoPtr.h"
+#include "nsString.h"
+#include "nsError.h"
+#include "nsTArray.h"
+#include "mozilla/UniquePtr.h"
+
+// http version codes
+#define NS_HTTP_VERSION_UNKNOWN  0
+#define NS_HTTP_VERSION_0_9      9
+#define NS_HTTP_VERSION_1_0     10
+#define NS_HTTP_VERSION_1_1     11
+#define NS_HTTP_VERSION_2_0     20
+
+namespace mozilla {
+
+class Mutex;
+
+namespace net {
+    enum {
+        // SPDY_VERSION_2 = 2, REMOVED
+        // SPDY_VERSION_3 = 3, REMOVED
+        // SPDY_VERSION_31 = 4, REMOVED
+        HTTP_VERSION_2 = 5
+
+        // leave room for official versions. telem goes to 48
+        // 24 was a internal spdy/3.1
+        // 25 was spdy/4a2
+        // 26 was http/2-draft08 and http/2-draft07 (they were the same)
+        // 27 was http/2-draft09, h2-10, and h2-11
+        // 28 was http/2-draft12
+        // 29 was http/2-draft13
+        // 30 was h2-14 and h2-15
+        // 31 was h2-16
+    };
+
+typedef uint8_t nsHttpVersion;
+
+//-----------------------------------------------------------------------------
+// http connection capabilities
+//-----------------------------------------------------------------------------
+
+#define NS_HTTP_ALLOW_KEEPALIVE      (1<<0)
+#define NS_HTTP_ALLOW_PIPELINING     (1<<1)
+
+// a transaction with this caps flag will continue to own the connection,
+// preventing it from being reclaimed, even after the transaction completes.
+#define NS_HTTP_STICKY_CONNECTION    (1<<2)
+
+// a transaction with this caps flag will, upon opening a new connection,
+// bypass the local DNS cache
+#define NS_HTTP_REFRESH_DNS          (1<<3)
+
+// a transaction with this caps flag will not pass SSL client-certificates
+// to the server (see bug #466080), but is may also be used for other things
+#define NS_HTTP_LOAD_ANONYMOUS       (1<<4)
+
+// a transaction with this caps flag keeps timing information
+#define NS_HTTP_TIMING_ENABLED       (1<<5)
+
+// a transaction with this flag blocks the initiation of other transactons
+// in the same load group until it is complete
+#define NS_HTTP_LOAD_AS_BLOCKING     (1<<6)
+
+// Disallow the use of the SPDY protocol. This is meant for the contexts
+// such as HTTP upgrade which are nonsensical for SPDY, it is not the
+// SPDY configuration variable.
+#define NS_HTTP_DISALLOW_SPDY        (1<<7)
+
+// a transaction with this flag loads without respect to whether the load
+// group is currently blocking on some resources
+#define NS_HTTP_LOAD_UNBLOCKED       (1<<8)
+
+// This flag indicates the transaction should accept associated pushes
+#define NS_HTTP_ONPUSH_LISTENER      (1<<9)
+
+// Transactions with this flag should react to errors without side effects
+// First user is to prevent clearing of alt-svc cache on failed probe
+#define NS_HTTP_ERROR_SOFTLY         (1<<10)
+
+// This corresponds to nsIHttpChannelInternal.beConservative
+// it disables any cutting edge features that we are worried might result in
+// interop problems with critical infrastructure
+#define NS_HTTP_BE_CONSERVATIVE      (1<<11)
+
+// (1<<12) is used for NS_HTTP_URGENT_START on a newer branch
+
+// A sticky connection of the transaction is explicitly allowed to be restarted
+// on ERROR_NET_RESET.
+#define NS_HTTP_CONNECTION_RESTARTABLE  (1<<13)
+
+//-----------------------------------------------------------------------------
+// some default values
+//-----------------------------------------------------------------------------
+
+#define NS_HTTP_DEFAULT_PORT  80
+#define NS_HTTPS_DEFAULT_PORT 443
+
+#define NS_HTTP_HEADER_SEPS ", \t"
+
+//-----------------------------------------------------------------------------
+// http atoms...
+//-----------------------------------------------------------------------------
+
+struct nsHttpAtom
+{
+    operator const char *() const { return _val; }
+    const char *get() const { return _val; }
+
+    void operator=(const char *v) { _val = v; }
+    void operator=(const nsHttpAtom &a) { _val = a._val; }
+
+    // private
+    const char *_val;
+};
+
+struct nsHttp
+{
+    static nsresult CreateAtomTable();
+    static void DestroyAtomTable();
+
+    // The mutex is valid any time the Atom Table is valid
+    // This mutex is used in the unusual case that the network thread and
+    // main thread might access the same data
+    static Mutex *GetLock();
+
+    // will dynamically add atoms to the table if they don't already exist
+    static nsHttpAtom ResolveAtom(const char *);
+    static nsHttpAtom ResolveAtom(const nsACString &s)
+    {
+        return ResolveAtom(PromiseFlatCString(s).get());
+    }
+
+    // returns true if the specified token [start,end) is valid per RFC 2616
+    // section 2.2
+    static bool IsValidToken(const char *start, const char *end);
+
+    static inline bool IsValidToken(const nsACString &s) {
+        return IsValidToken(s.BeginReading(), s.EndReading());
+    }
+
+    // Returns true if the specified value is reasonable given the defintion
+    // in RFC 2616 section 4.2.  Full strict validation is not performed
+    // currently as it would require full parsing of the value.
+    static bool IsReasonableHeaderValue(const nsACString &s);
+
+    // find the first instance (case-insensitive comparison) of the given
+    // |token| in the |input| string.  the |token| is bounded by elements of
+    // |separators| and may appear at the beginning or end of the |input|
+    // string.  null is returned if the |token| is not found.  |input| may be
+    // null, in which case null is returned.
+    static const char *FindToken(const char *input, const char *token,
+                                 const char *separators);
+
+    // This function parses a string containing a decimal-valued, non-negative
+    // 64-bit integer.  If the value would exceed INT64_MAX, then false is
+    // returned.  Otherwise, this function returns true and stores the
+    // parsed value in |result|.  The next unparsed character in |input| is
+    // optionally returned via |next| if |next| is non-null.
+    //
+    // TODO(darin): Replace this with something generic.
+    //
+    static bool ParseInt64(const char *input, const char **next,
+                             int64_t *result);
+
+    // Variant on ParseInt64 that expects the input string to contain nothing
+    // more than the value being parsed.
+    static inline bool ParseInt64(const char *input, int64_t *result) {
+        const char *next;
+        return ParseInt64(input, &next, result) && *next == '\0';
+    }
+
+    // Return whether the HTTP status code represents a permanent redirect
+    static bool IsPermanentRedirect(uint32_t httpStatus);
+
+    // Returns the APLN token which represents the used protocol version.
+    static const char* GetProtocolVersion(uint32_t pv);
+
+    // Declare all atoms
+    //
+    // The atom names and values are stored in nsHttpAtomList.h and are brought
+    // to you by the magic of C preprocessing.  Add new atoms to nsHttpAtomList
+    // and all support logic will be auto-generated.
+    //
+#define HTTP_ATOM(_name, _value) static nsHttpAtom _name;
+#include "nsHttpAtomList.h"
+#undef HTTP_ATOM
+};
+
+//-----------------------------------------------------------------------------
+// utilities...
+//-----------------------------------------------------------------------------
+
+static inline uint32_t
+PRTimeToSeconds(PRTime t_usec)
+{
+    return uint32_t( t_usec / PR_USEC_PER_SEC );
+}
+
+#define NowInSeconds() PRTimeToSeconds(PR_Now())
+
+// Round q-value to 2 decimal places; return 2 most significant digits as uint.
+#define QVAL_TO_UINT(q) ((unsigned int) ((q + 0.005) * 100.0))
+
+#define HTTP_LWS " \t"
+#define HTTP_HEADER_VALUE_SEPS HTTP_LWS ","
+
+void EnsureBuffer(UniquePtr<char[]> &buf, uint32_t newSize,
+                  uint32_t preserve, uint32_t &objSize);
+void EnsureBuffer(UniquePtr<uint8_t[]> &buf, uint32_t newSize,
+                  uint32_t preserve, uint32_t &objSize);
+
+// h2=":443"; ma=60; single
+// results in 3 mValues = {{h2, :443}, {ma, 60}, {single}}
+
+class ParsedHeaderPair
+{
+public:
+    ParsedHeaderPair(const char *name, int32_t nameLen,
+                     const char *val, int32_t valLen)
+    {
+        if (nameLen > 0) {
+            mName.Rebind(name, name + nameLen);
+        }
+        if (valLen > 0) {
+            mValue.Rebind(val, val + valLen);
+        }
+    }
+
+    ParsedHeaderPair(ParsedHeaderPair const &copy)
+        : mName(copy.mName)
+        , mValue(copy.mValue)
+    {
+    }
+
+    nsDependentCSubstring mName;
+    nsDependentCSubstring mValue;
+};
+
+class ParsedHeaderValueList
+{
+public:
+    ParsedHeaderValueList(char *t, uint32_t len);
+    nsTArray<ParsedHeaderPair> mValues;
+
+private:
+    void ParsePair(char *t, uint32_t len);
+    void Tokenize(char *input, uint32_t inputLen, char **token,
+                  uint32_t *tokenLen, bool *foundEquals, char **next);
+};
+
+class ParsedHeaderValueListList
+{
+public:
+    explicit ParsedHeaderValueListList(const nsCString &txt);
+    nsTArray<ParsedHeaderValueList> mValues;
+
+private:
+    nsCString mFull;
+};
+
+
+} // namespace net
+} // namespace mozilla
+
+#endif // nsHttp_h__