pjs/netwerk/protocol/http/nsHttpAuthCache.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Gagan Saksena <gagan@netscape.com> (original author)
* Darin Fisher <darin@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsHttpAuthCache_h__
#define nsHttpAuthCache_h__
#include "nsHttp.h"
#include "nsError.h"
#include "nsTArray.h"
#include "nsAutoPtr.h"
#include "nsAString.h"
#include "nsString.h"
#include "nsCOMPtr.h"
#include "plhash.h"
#include "nsCRT.h"
struct nsHttpAuthPath {
struct nsHttpAuthPath *mNext;
char mPath[1];
};
//-----------------------------------------------------------------------------
// nsHttpAuthIdentity
//-----------------------------------------------------------------------------
class nsHttpAuthIdentity
{
public:
nsHttpAuthIdentity()
: mUser(nsnull)
, mPass(nsnull)
, mDomain(nsnull)
{
}
nsHttpAuthIdentity(const PRUnichar *domain,
const PRUnichar *user,
const PRUnichar *password)
: mUser(nsnull)
{
Set(domain, user, password);
}
~nsHttpAuthIdentity()
{
Clear();
}
const PRUnichar *Domain() const { return mDomain; }
const PRUnichar *User() const { return mUser; }
const PRUnichar *Password() const { return mPass; }
nsresult Set(const PRUnichar *domain,
const PRUnichar *user,
const PRUnichar *password);
nsresult Set(const nsHttpAuthIdentity &other) { return Set(other.mDomain, other.mUser, other.mPass); }
void Clear();
PRBool Equals(const nsHttpAuthIdentity &other) const;
PRBool IsEmpty() const { return !mUser; }
private:
// allocated as one contiguous blob, starting at mUser.
PRUnichar *mUser;
PRUnichar *mPass;
PRUnichar *mDomain;
};
//-----------------------------------------------------------------------------
// nsHttpAuthEntry
//-----------------------------------------------------------------------------
class nsHttpAuthEntry
{
public:
const char *Realm() const { return mRealm; }
const char *Creds() const { return mCreds; }
const char *Challenge() const { return mChallenge; }
const PRUnichar *Domain() const { return mIdent.Domain(); }
const PRUnichar *User() const { return mIdent.User(); }
const PRUnichar *Pass() const { return mIdent.Password(); }
nsHttpAuthPath *RootPath() { return mRoot; }
const nsHttpAuthIdentity &Identity() const { return mIdent; }
nsresult AddPath(const char *aPath);
nsCOMPtr<nsISupports> mMetaData;
private:
nsHttpAuthEntry(const char *path,
const char *realm,
const char *creds,
const char *challenge,
const nsHttpAuthIdentity *ident,
nsISupports *metadata)
: mRoot(nsnull)
, mTail(nsnull)
, mRealm(nsnull)
{
Set(path, realm, creds, challenge, ident, metadata);
}
~nsHttpAuthEntry();
nsresult Set(const char *path,
const char *realm,
const char *creds,
const char *challenge,
const nsHttpAuthIdentity *ident,
nsISupports *metadata);
nsHttpAuthIdentity mIdent;
nsHttpAuthPath *mRoot; //root pointer
nsHttpAuthPath *mTail; //tail pointer
// allocated together in one blob, starting with mRealm.
char *mRealm;
char *mCreds;
char *mChallenge;
friend class nsHttpAuthNode;
friend class nsHttpAuthCache;
friend class nsAutoPtr<nsHttpAuthEntry>; // needs to call the destructor
};
//-----------------------------------------------------------------------------
// nsHttpAuthNode
//-----------------------------------------------------------------------------
class nsHttpAuthNode
{
private:
nsHttpAuthNode();
~nsHttpAuthNode();
// path can be null, in which case we'll search for an entry
// with a null path.
nsHttpAuthEntry *LookupEntryByPath(const char *path);
// realm must not be null
nsHttpAuthEntry *LookupEntryByRealm(const char *realm);
// if a matching entry is found, then credentials will be changed.
nsresult SetAuthEntry(const char *path,
const char *realm,
const char *credentials,
const char *challenge,
const nsHttpAuthIdentity *ident,
nsISupports *metadata);
void ClearAuthEntry(const char *realm);
PRUint32 EntryCount() { return mList.Length(); }
private:
nsTArray<nsAutoPtr<nsHttpAuthEntry> > mList;
friend class nsHttpAuthCache;
};
//-----------------------------------------------------------------------------
// nsHttpAuthCache
// (holds a hash table from host:port to nsHttpAuthNode)
//-----------------------------------------------------------------------------
class nsHttpAuthCache
{
public:
nsHttpAuthCache();
~nsHttpAuthCache();
nsresult Init();
// |scheme|, |host|, and |port| are required
// |path| can be null
// |entry| is either null or a weak reference
nsresult GetAuthEntryForPath(const char *scheme,
const char *host,
PRInt32 port,
const char *path,
nsHttpAuthEntry **entry);
// |scheme|, |host|, and |port| are required
// |realm| must not be null
// |entry| is either null or a weak reference
nsresult GetAuthEntryForDomain(const char *scheme,
const char *host,
PRInt32 port,
const char *realm,
nsHttpAuthEntry **entry);
// |scheme|, |host|, and |port| are required
// |path| can be null
// |realm| must not be null
// if |credentials|, |user|, |pass|, and |challenge| are each
// null, then the entry is deleted.
nsresult SetAuthEntry(const char *scheme,
const char *host,
PRInt32 port,
const char *directory,
const char *realm,
const char *credentials,
const char *challenge,
const nsHttpAuthIdentity *ident,
nsISupports *metadata);
void ClearAuthEntry(const char *scheme,
const char *host,
PRInt32 port,
const char *realm);
// expire all existing auth list entries including proxy auths.
nsresult ClearAll();
private:
nsHttpAuthNode *LookupAuthNode(const char *scheme,
const char *host,
PRInt32 port,
nsCString &key);
// hash table allocation functions
static void* AllocTable(void *, PRSize size);
static void FreeTable(void *, void *item);
static PLHashEntry* AllocEntry(void *, const void *key);
static void FreeEntry(void *, PLHashEntry *he, PRUintn flag);
static PLHashAllocOps gHashAllocOps;
private:
PLHashTable *mDB; // "host:port" --> nsHttpAuthNode
};
#endif // nsHttpAuthCache_h__