diff -r 000000000000 -r 6474c204b198 netwerk/protocol/http/nsHttp.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/protocol/http/nsHttp.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,299 @@
+/* -*- 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/. */
+
+// HttpLog.h should generally be included first
+#include "HttpLog.h"
+
+#include "nsHttp.h"
+#include "pldhash.h"
+#include "mozilla/Mutex.h"
+#include "mozilla/HashFunctions.h"
+#include "nsCRT.h"
+
+#if defined(PR_LOGGING)
+PRLogModuleInfo *gHttpLog = nullptr;
+#endif
+
+namespace mozilla {
+namespace net {
+
+// define storage for all atoms
+#define HTTP_ATOM(_name, _value) nsHttpAtom nsHttp::_name = { _value };
+#include "nsHttpAtomList.h"
+#undef HTTP_ATOM
+
+// find out how many atoms we have
+#define HTTP_ATOM(_name, _value) Unused_ ## _name,
+enum {
+#include "nsHttpAtomList.h"
+    NUM_HTTP_ATOMS
+};
+#undef HTTP_ATOM
+
+// we keep a linked list of atoms allocated on the heap for easy clean up when
+// the atom table is destroyed.  The structure and value string are allocated
+// as one contiguous block.
+
+struct HttpHeapAtom {
+    struct HttpHeapAtom *next;
+    char                 value[1];
+};
+
+static struct PLDHashTable  sAtomTable = {0};
+static struct HttpHeapAtom *sHeapAtoms = nullptr;
+static Mutex               *sLock = nullptr;
+
+HttpHeapAtom *
+NewHeapAtom(const char *value) {
+    int len = strlen(value);
+
+    HttpHeapAtom *a =
+        reinterpret_cast<HttpHeapAtom *>(malloc(sizeof(*a) + len));
+    if (!a)
+        return nullptr;
+    memcpy(a->value, value, len + 1);
+
+    // add this heap atom to the list of all heap atoms
+    a->next = sHeapAtoms;
+    sHeapAtoms = a;
+
+    return a;
+}
+
+// Hash string ignore case, based on PL_HashString
+static PLDHashNumber
+StringHash(PLDHashTable *table, const void *key)
+{
+    PLDHashNumber h = 0;
+    for (const char *s = reinterpret_cast<const char*>(key); *s; ++s)
+        h = AddToHash(h, nsCRT::ToLower(*s));
+    return h;
+}
+
+static bool
+StringCompare(PLDHashTable *table, const PLDHashEntryHdr *entry,
+              const void *testKey)
+{
+    const void *entryKey =
+            reinterpret_cast<const PLDHashEntryStub *>(entry)->key;
+
+    return PL_strcasecmp(reinterpret_cast<const char *>(entryKey),
+                         reinterpret_cast<const char *>(testKey)) == 0;
+}
+
+static const PLDHashTableOps ops = {
+    PL_DHashAllocTable,
+    PL_DHashFreeTable,
+    StringHash,
+    StringCompare,
+    PL_DHashMoveEntryStub,
+    PL_DHashClearEntryStub,
+    PL_DHashFinalizeStub,
+    nullptr
+};
+
+// We put the atoms in a hash table for speedy lookup.. see ResolveAtom.
+nsresult
+nsHttp::CreateAtomTable()
+{
+    MOZ_ASSERT(!sAtomTable.ops, "atom table already initialized");
+
+    if (!sLock) {
+        sLock = new Mutex("nsHttp.sLock");
+    }
+
+    // The capacity for this table is initialized to a value greater than the
+    // number of known atoms (NUM_HTTP_ATOMS) because we expect to encounter a
+    // few random headers right off the bat.
+    if (!PL_DHashTableInit(&sAtomTable, &ops, nullptr,
+                           sizeof(PLDHashEntryStub),
+                           NUM_HTTP_ATOMS + 10, fallible_t())) {
+        sAtomTable.ops = nullptr;
+        return NS_ERROR_OUT_OF_MEMORY;
+    }
+
+    // fill the table with our known atoms
+    const char *const atoms[] = {
+#define HTTP_ATOM(_name, _value) nsHttp::_name._val,
+#include "nsHttpAtomList.h"
+#undef HTTP_ATOM
+        nullptr
+    };
+
+    for (int i = 0; atoms[i]; ++i) {
+        PLDHashEntryStub *stub = reinterpret_cast<PLDHashEntryStub *>
+                                                 (PL_DHashTableOperate(&sAtomTable, atoms[i], PL_DHASH_ADD));
+        if (!stub)
+            return NS_ERROR_OUT_OF_MEMORY;
+
+        MOZ_ASSERT(!stub->key, "duplicate static atom");
+        stub->key = atoms[i];
+    }
+
+    return NS_OK;
+}
+
+void
+nsHttp::DestroyAtomTable()
+{
+    if (sAtomTable.ops) {
+        PL_DHashTableFinish(&sAtomTable);
+        sAtomTable.ops = nullptr;
+    }
+
+    while (sHeapAtoms) {
+        HttpHeapAtom *next = sHeapAtoms->next;
+        free(sHeapAtoms);
+        sHeapAtoms = next;
+    }
+
+    if (sLock) {
+        delete sLock;
+        sLock = nullptr;
+    }
+}
+
+Mutex *
+nsHttp::GetLock()
+{
+    return sLock;
+}
+
+// this function may be called from multiple threads
+nsHttpAtom
+nsHttp::ResolveAtom(const char *str)
+{
+    nsHttpAtom atom = { nullptr };
+
+    if (!str || !sAtomTable.ops)
+        return atom;
+
+    MutexAutoLock lock(*sLock);
+
+    PLDHashEntryStub *stub = reinterpret_cast<PLDHashEntryStub *>
+                                             (PL_DHashTableOperate(&sAtomTable, str, PL_DHASH_ADD));
+    if (!stub)
+        return atom;  // out of memory
+
+    if (stub->key) {
+        atom._val = reinterpret_cast<const char *>(stub->key);
+        return atom;
+    }
+
+    // if the atom could not be found in the atom table, then we'll go
+    // and allocate a new atom on the heap.
+    HttpHeapAtom *heapAtom = NewHeapAtom(str);
+    if (!heapAtom)
+        return atom;  // out of memory
+
+    stub->key = atom._val = heapAtom->value;
+    return atom;
+}
+
+//
+// From section 2.2 of RFC 2616, a token is defined as:
+//
+//   token          = 1*<any CHAR except CTLs or separators>
+//   CHAR           = <any US-ASCII character (octets 0 - 127)>
+//   separators     = "(" | ")" | "<" | ">" | "@"
+//                  | "," | ";" | ":" | "\" | <">
+//                  | "/" | "[" | "]" | "?" | "="
+//                  | "{" | "}" | SP | HT
+//   CTL            = <any US-ASCII control character
+//                    (octets 0 - 31) and DEL (127)>
+//   SP             = <US-ASCII SP, space (32)>
+//   HT             = <US-ASCII HT, horizontal-tab (9)>
+//
+static const char kValidTokenMap[128] = {
+    0, 0, 0, 0, 0, 0, 0, 0, //   0
+    0, 0, 0, 0, 0, 0, 0, 0, //   8
+    0, 0, 0, 0, 0, 0, 0, 0, //  16
+    0, 0, 0, 0, 0, 0, 0, 0, //  24
+
+    0, 1, 0, 1, 1, 1, 1, 1, //  32
+    0, 0, 1, 1, 0, 1, 1, 0, //  40
+    1, 1, 1, 1, 1, 1, 1, 1, //  48
+    1, 1, 0, 0, 0, 0, 0, 0, //  56
+
+    0, 1, 1, 1, 1, 1, 1, 1, //  64
+    1, 1, 1, 1, 1, 1, 1, 1, //  72
+    1, 1, 1, 1, 1, 1, 1, 1, //  80
+    1, 1, 1, 0, 0, 0, 1, 1, //  88
+
+    1, 1, 1, 1, 1, 1, 1, 1, //  96
+    1, 1, 1, 1, 1, 1, 1, 1, // 104
+    1, 1, 1, 1, 1, 1, 1, 1, // 112
+    1, 1, 1, 0, 1, 0, 1, 0  // 120
+};
+bool
+nsHttp::IsValidToken(const char *start, const char *end)
+{
+    if (start == end)
+        return false;
+
+    for (; start != end; ++start) {
+        const unsigned char idx = *start;
+        if (idx > 127 || !kValidTokenMap[idx])
+            return false;
+    }
+
+    return true;
+}
+
+const char *
+nsHttp::FindToken(const char *input, const char *token, const char *seps)
+{
+    if (!input)
+        return nullptr;
+
+    int inputLen = strlen(input);
+    int tokenLen = strlen(token);
+
+    if (inputLen < tokenLen)
+        return nullptr;
+
+    const char *inputTop = input;
+    const char *inputEnd = input + inputLen - tokenLen;
+    for (; input <= inputEnd; ++input) {
+        if (PL_strncasecmp(input, token, tokenLen) == 0) {
+            if (input > inputTop && !strchr(seps, *(input - 1)))
+                continue;
+            if (input < inputEnd && !strchr(seps, *(input + tokenLen)))
+                continue;
+            return input;
+        }
+    }
+
+    return nullptr;
+}
+
+bool
+nsHttp::ParseInt64(const char *input, const char **next, int64_t *r)
+{
+    const char *start = input;
+    *r = 0;
+    while (*input >= '0' && *input <= '9') {
+        int64_t next = 10 * (*r) + (*input - '0');
+        if (next < *r) // overflow?
+            return false;
+        *r = next;
+        ++input;
+    }
+    if (input == start) // nothing parsed?
+        return false;
+    if (next)
+        *next = input;
+    return true;
+}
+
+bool
+nsHttp::IsPermanentRedirect(uint32_t httpStatus)
+{
+  return httpStatus == 301 || httpStatus == 308;
+}
+
+} // namespace mozilla::net
+} // namespace mozilla