diff -r 000000000000 -r 6474c204b198 netwerk/protocol/http/nsHttp.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/netwerk/protocol/http/nsHttp.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,196 @@ +/* -*- 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 +#include "prtime.h" +#include "nsString.h" +#include "nsError.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_REMOVED = 2, + SPDY_VERSION_3 = 3, + SPDY_VERSION_31 = 4, + + // 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 also http/2-draft09 + HTTP2_VERSION_DRAFT10 = 27 + }; + +typedef uint8_t nsHttpVersion; + +#define NS_HTTP2_DRAFT_VERSION HTTP2_VERSION_DRAFT10 +#define NS_HTTP2_DRAFT_TOKEN "h2-10" + +//----------------------------------------------------------------------------- +// 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) + +// These flags allow a transaction to use TLS false start with +// weaker security profiles based on past history +#define NS_HTTP_ALLOW_RSA_FALSESTART (1<<9) + +//----------------------------------------------------------------------------- +// 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 nsCString &s) { + const char *start = s.get(); + return IsValidToken(start, start + s.Length()); + } + + // 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); + + // 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 "," + +} // namespace mozilla::net +} // namespace mozilla + +#endif // nsHttp_h__