This file is indexed.

/usr/include/firefox/nsHttpResponseHead.h is in firefox-dev 11.0+build1-0ubuntu4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Darin Fisher <darin@netscape.com> (original author)
 *
 * 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 nsHttpResponseHead_h__
#define nsHttpResponseHead_h__

#include "nsHttpHeaderArray.h"
#include "nsHttp.h"
#include "nsString.h"

//-----------------------------------------------------------------------------
// nsHttpResponseHead represents the status line and headers from an HTTP
// response.
//-----------------------------------------------------------------------------

class nsHttpResponseHead
{
public:
    nsHttpResponseHead() : mVersion(NS_HTTP_VERSION_1_1)
                         , mStatus(200)
                         , mContentLength(LL_MAXUINT)
                         , mCacheControlNoStore(false)
                         , mCacheControlNoCache(false)
                         , mPragmaNoCache(false) {}
    ~nsHttpResponseHead() 
    {
        Reset();
    }
    
    nsHttpHeaderArray    &Headers()        { return mHeaders; }
    nsHttpVersion         Version()        { return mVersion; }
    PRUint16              Status()         { return mStatus; }
    const nsAFlatCString &StatusText()     { return mStatusText; }
    PRInt64               ContentLength()  { return mContentLength; }
    const nsAFlatCString &ContentType()    { return mContentType; }
    const nsAFlatCString &ContentCharset() { return mContentCharset; }
    bool                  NoStore()        { return mCacheControlNoStore; }
    bool                  NoCache()        { return (mCacheControlNoCache || mPragmaNoCache); }
    /**
     * Full length of the entity. For byte-range requests, this may be larger
     * than ContentLength(), which will only represent the requested part of the
     * entity.
     */
    PRInt64               TotalEntitySize();

    const char *PeekHeader(nsHttpAtom h)            { return mHeaders.PeekHeader(h); }
    nsresult SetHeader(nsHttpAtom h, const nsACString &v, bool m=false);
    nsresult GetHeader(nsHttpAtom h, nsACString &v) { return mHeaders.GetHeader(h, v); }
    void     ClearHeader(nsHttpAtom h)              { mHeaders.ClearHeader(h); }
    void     ClearHeaders()                         { mHeaders.Clear(); }

    const char *FindHeaderValue(nsHttpAtom h, const char *v) { return mHeaders.FindHeaderValue(h, v); }
    bool        HasHeaderValue(nsHttpAtom h, const char *v) { return mHeaders.HasHeaderValue(h, v); }

    void     SetContentType(const nsACString &s)    { mContentType = s; }
    void     SetContentCharset(const nsACString &s) { mContentCharset = s; }
    void     SetContentLength(PRInt64);

    // write out the response status line and headers as a single text block,
    // optionally pruning out transient headers (ie. headers that only make
    // sense the first time the response is handled).
    void     Flatten(nsACString &, bool pruneTransients);

    // parse flattened response head. block must be null terminated. parsing is
    // destructive.
    nsresult Parse(char *block);

    // parse the status line. line must be null terminated.
    void     ParseStatusLine(const char *line);

    // parse a header line. line must be null terminated. parsing is destructive.
    nsresult ParseHeaderLine(const char *line);

    // cache validation support methods
    nsresult ComputeFreshnessLifetime(PRUint32 *);
    nsresult ComputeCurrentAge(PRUint32 now, PRUint32 requestTime, PRUint32 *result);
    bool     MustValidate();
    bool     MustValidateIfExpired();

    // returns true if the server appears to support byte range requests.
    bool     IsResumable();

    // returns true if the Expires header has a value in the past relative to the
    // value of the Date header.
    bool     ExpiresInPast();

    // update headers...
    nsresult UpdateHeaders(nsHttpHeaderArray &headers); 

    // reset the response head to it's initial state
    void     Reset();

    // these return failure if the header does not exist.
    nsresult ParseDateHeader(nsHttpAtom header, PRUint32 *result);
    nsresult GetAgeValue(PRUint32 *result);
    nsresult GetMaxAgeValue(PRUint32 *result);
    nsresult GetDateValue(PRUint32 *result)         { return ParseDateHeader(nsHttp::Date, result); }
    nsresult GetExpiresValue(PRUint32 *result);
    nsresult GetLastModifiedValue(PRUint32 *result) { return ParseDateHeader(nsHttp::Last_Modified, result); }

private:
    void     ParseVersion(const char *);
    void     ParseCacheControl(const char *);
    void     ParsePragma(const char *);

private:
    nsHttpHeaderArray mHeaders;
    nsHttpVersion     mVersion;
    PRUint16          mStatus;
    nsCString         mStatusText;
    PRInt64           mContentLength;
    nsCString         mContentType;
    nsCString         mContentCharset;
    bool              mCacheControlNoStore;
    bool              mCacheControlNoCache;
    bool              mPragmaNoCache;

    friend struct IPC::ParamTraits<nsHttpResponseHead>;
};

#endif // nsHttpResponseHead_h__