head	1.27;
access;
symbols;
locks; strict;
comment	@# @;


1.27
date	2007.06.21.08.41.52;	author openpkg;	state Exp;
branches;
next	1.26;
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1.26
date	2007.02.08.12.26.58;	author rse;	state Exp;
branches;
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1.25
date	2006.03.27.15.34.25;	author rse;	state Exp;
branches;
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1.24
date	2006.03.14.21.40.30;	author rse;	state Exp;
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1.23
date	2006.03.13.22.26.39;	author rse;	state Exp;
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1.22
date	2006.03.13.15.02.13;	author rse;	state Exp;
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1.21
date	2006.03.13.12.06.25;	author rse;	state Exp;
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1.20
date	2006.03.12.19.16.36;	author rse;	state Exp;
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1.19
date	2006.03.12.18.58.39;	author rse;	state Exp;
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1.18
date	2006.03.12.18.36.58;	author rse;	state Exp;
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1.17
date	2006.03.11.16.38.45;	author rse;	state Exp;
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1.16
date	2006.03.11.16.32.59;	author rse;	state Exp;
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1.15
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1.14
date	2006.03.09.21.01.35;	author rse;	state Exp;
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1.13
date	2006.03.09.19.12.10;	author rse;	state Exp;
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1.12
date	2006.02.20.08.34.35;	author rse;	state Exp;
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1.11
date	2005.11.27.19.02.19;	author rse;	state Exp;
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1.10
date	2005.11.27.17.46.22;	author rse;	state Exp;
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1.9
date	2005.11.27.13.30.59;	author rse;	state Exp;
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1.8
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1.5
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1.4
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1.3
date	2005.11.25.16.16.07;	author rse;	state Exp;
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1.2
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1.1
date	2005.11.25.13.13.34;	author rse;	state Exp;
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desc
@@


1.27
log
@flush and save current state of CVS controlled data
@
text
@<script language="php">
##
##  Copyright (c) 2005-2006 OpenPKG Foundation e.V. <http://openpkg.net/>
##  Copyright (c) 2005-2006 Ralf S. Engelschall <http://engelschall.com/>
##
##  Permission to use, copy, modify, and distribute this software for
##  any purpose with or without fee is hereby granted, provided that
##  the above copyright notice and this permission notice appear in all
##  copies.
##
##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
##  SUCH DAMAGE.
##
##  canvas.php: canvas rendering driver
##

##  url    ::= "http://meta.openpkg.org/" . option*
##  option ::= # content dispatching (internal)
##             ("type=" . ("html"|"css"|"js"))
##           | # content embedding
##             ("embed=" . ("css"|"js") . (",".("css"|"js"))?)
##           | # content path selection
##             ("path=" . site.(".".area.(".".page.(".".part)?)?)?
##           | # content layouting
##             ("pane=" . ("1"|"2"))
##           | # x-axis streching
##             ("stretch=" . ("canvas"|"margin"))
##           | # root URL type
##             ("root=" . ("absolute"|"relative"))

#   create global variables
$hdr = array();   # request header
$opt = array();   # request options
$cfg = array();   # configuration

#   determine HTTP request headers
if (isset($_SERVER["SERVER_VERSION"]))
    $hdr = apache_request_headers();

#   determine URL input parameters
$opt["type"]    = isset($_GET["type"])    ? $_GET["type"]    : "html";
$opt["embed"]   = isset($_GET["embed"])   ? $_GET["embed"]   : "";
$opt["path"]    = isset($_GET["path"])    ? $_GET["path"]    : "project";
$opt["pane"]    = isset($_GET["pane"])    ? $_GET["pane"]    : "2";
$opt["stretch"] = isset($_GET["stretch"]) ? $_GET["stretch"] : "margin";
$opt["root"]    = isset($_GET["root"])    ? $_GET["root"]    : "relative";
$opt["debug"]   = isset($_GET["debug"])   ? $_GET["debug"]   : "no";

#   sanity check parameters
#if (preg_match('/^(html|css|js)$/', $opt["type"]))
#    die;

#   parse path into parts
$x = explode(".", $opt["path"]);
$opt["path.site"] = $x[0];
$opt["path.area"] = $x[1];
$opt["path.page"] = $x[2];
$opt["path.part"] = $x[3];
unset($x);

#   parse embedding specification
$x = explode(",", $opt["embed"]);
$opt["embed.css"] = 0;
$opt["embed.js"]  = 0;
foreach ($x as $name) {
    $opt["embed.$name"] = 1;
}
unset($x);

#   determine base URL
if ($opt["root"] == "absolute") {
    #   advantage:    faster
    #   disadvantage: IE fails to load javascript, HTTPS complains
    $cfg["url.base"] = "http://meta.openpkg.org/";
}
else if ($opt["root"] == "relative") {
    #   advantage:    IE loads javascript, HTTPS seamless integration
    #   disadvantage: slower
    $cfg["url.base"] = "/meta/";
}
else {
    #   default (doesn't really work)
    $cfg["url.base"] = "";
}

#   determine last-modification and
#   short circuit processing if HTTP If-Modified-Since applies
$gmtime = gmdate("D, d M Y H:i:s", filemtime($_SERVER["SCRIPT_FILENAME"])) . " UTC";
header(sprintf("Last-Modified: %s", $gmtime));
$if_modified_since = preg_replace('/;.*$/', '', $hdr["If-Modified-Since"]);
if ($if_modified_since == $gmtime) {
    header("HTTP/1.1 304 Not Modified");
    exit(0);
}
unset($gmtime, $if_modified_since);

#   determine content-type and expiry time
$spec = array(
    "html" => array(type => "text/html",        maxage => 0),
    "css"  => array(type => "text/css",         maxage => 0),
    "js"   => array(type => "text/javascript",  maxage => 0),
);
header(sprintf("Content-type: %s", $spec[$opt["type"]]["type"]));
header(sprintf("Cache-Control: max-age=%d, must-revalidate", $spec[$opt["type"]]["maxage"]));
unset($spec);

#   load content generation parts
include("canvas-php.php");
divert("/dev/null");
include("canvas-js.php");
include("global-polling.php");
include("canvas-style.php");
include("canvas-nav.php");
include("canvas-nav-title.php");
include("canvas-nav-tab.php");
include("canvas-nav-path.php");
include("canvas-nav-bar.php");
include("canvas-nav-xref.php");
include("canvas-nav2.php");
include("canvas-nav-menu.php");
include("canvas-ase.php");
include("canvas-foot.php");
include("canvas-layout.php");
include("canvas-html.php");

#   generate content
divert_end();
$content = undivert($opt["type"]);
header(sprintf("Content-Length: %d", strlen($content)));
print $content;

</script>
@


1.26
log
@flush all pending changes to meta.openpkg.org
@
text
@d129 3
@


1.25
log
@add trivial debug support for RSE internal hacking
@
text
@d59 4
d121 1
@


1.24
log
@first cut for page cross-referencing support
@
text
@d57 1
@


1.23
log
@fix URLs
@
text
@d114 1
d122 1
@


1.22
log
@polish the positioning of title, navigation path and headline; split footer stuff into own file
@
text
@d84 1
a84 1
    $cfg["url.base"] = "/openpkg-meta/";
@


1.21
log
@cleanup navigation bar style
@
text
@d119 3
a121 4
if ($opt["pane"] == "1")
    include("canvas-nav-path.php");
else if ($opt["pane"] == "2")
    include("canvas-nav-bar.php");
@


1.20
log
@code cosmetics
@
text
@d112 1
a112 1
#   load scripting parts
d115 1
a115 2

#   load navigation parts
a122 3

#   load content generation parts
include("canvas-style.php");
@


1.19
log
@cleanup includes
@
text
@d28 1
a28 1
##  option ::= # content dispatching (internal) 
d34 2
a35 2
##           | # content layouting 
##             ("pane=" . ("1"|"2"))                          
d83 1
a83 1
    #   disadvantage: slower  
@


1.18
log
@move diversion stuff into canvas-php.php and HTML template into a new canvas-html.php
@
text
@d112 1
a112 1
#   load content generation parts
d114 3
d124 2
a126 1
include("canvas-js.php");
@


1.17
log
@align style and reduce more global variables
@
text
@a111 35
#   diversion support
$div = array();
$div["name"] = "";
$div["data"] = array();
function divert_start ($name) {
    global $div;
    $div["name"] = $name;
    if (!isset($div["data"][$diversion_name])) {
        $div["data"][$diversion_name] = "";
    }
    ob_start();
}
function divert_end () {
    global $div;
    if ($div["name"] != "") {
        $div["data"][$div["name"]] .= ob_get_contents();
        ob_end_clean();
    }
}
function divert ($name) {
    global $div;
    if ($div["name"] != $name) {
        divert_end();
        divert_start($name);
    }
}
function undivert ($name) {
    global $div;
    if ($div["name"] == $name) {
        $div["data"][$div["name"]] .= ob_get_contents();
        ob_clean();
    }
    return $div["data"][$name];
}

d113 1
a113 1
divert("/dev/null");
a122 1
include("canvas-php.php");
d124 1
d126 5
a130 27
#   divert into HTML diversion by default
#   and start generating the HTML document
divert("html");
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
    <head>
        <meta name="Copyright" content="2005-2006 OpenPKG Foundation e.V."/>
        <meta name="Copyright" content="2005-2006 Ralf S. Engelschall"/>
        <script language="php">
            #   the standard HTML head element
            echo undivert("html-head");

            #   Cascading Style Sheet (CSS)
            if ($opt["embed"]["css"]) {
                #   internally embedded 
                echo "<style type=\"text/css\">\n";
                echo undivert("css");
                echo "</style>\n";
            }
            else {
                #   externally linked
                #   (path intentionally left out for caching because functionally unimportant)
                echo "<link rel=\"stylesheet\" type=\"text/css\"";
                echo " href=\"".$cfg["url.base"]."?type=css&amp;pane=".$opt["pane"]."&amp;stretch=".$opt["stretch"]."\"/>\n";
            }
a131 25
            #   JavaScript (JS)
            if ($opt["embed"]["js"]) {
                #   internally embedded
                echo "<script language=\"javascript\" type=\"text/javascript\">\n";
                echo undivert("js");
                echo "</script>\n";
            }
            else {
                #   externally linked
                #   (path intentionally included because functionally important)
                echo "<script type=\"text/javascript\"";
                echo " src=\"".$cfg["url.base"]."?type=js&amp;pane=".$opt["pane"]."&amp;path=".$opt["path"]."\"></script>\n";
            }
        </script>
    </head>
    <body>
        <script language="php">echo undivert("html-body");</script>
    </body>
</html>
<script language="php">
    #   generate content
    divert_end();
    $content = undivert($opt["type"]);
    header(sprintf("Content-Length: %d", strlen($content)));
    print $content;
@


1.16
log
@switch to global configuration array variables instead of a dozend individual variables
@
text
@d94 1
a94 1
header("Last-Modified: $gmtime");
d113 3
a115 2
$diversion_name = "";
$diversion_data = array();
d117 4
a120 5
    global $diversion_name;
    global $diversion_data;
    $diversion_name = $name;
    if (!isset($diversion_data[$diversion_name])) {
        $diversion_data[$diversion_name] = "";
d125 3
a127 4
    global $diversion_name;
    global $diversion_data;
    if ($diversion_name != "") {
        $diversion_data[$diversion_name] .= ob_get_contents();
d132 2
a133 2
    global $diversion_name;
    if ($diversion_name != $name) {
d139 3
a141 4
    global $diversion_name;
    global $diversion_data;
    if ($diversion_name == $name) {
        $diversion_data[$diversion_name] .= ob_get_contents();
d144 1
a144 1
    return $diversion_data[$name];
@


1.15
log
@add missing semicolon
@
text
@d41 16
a56 7
#   determine input parameters
$type    = isset($_GET["type"])    ? $_GET["type"]    : "html";
$embed   = isset($_GET["embed"])   ? $_GET["embed"]   : "";
$path    = isset($_GET["path"])    ? $_GET["path"]    : "project";
$pane    = isset($_GET["pane"])    ? $_GET["pane"]    : "2";
$stretch = isset($_GET["stretch"]) ? $_GET["stretch"] : "margin";
$root    = isset($_GET["root"])    ? $_GET["root"]    : "relative";
d59 6
a64 6
$x = explode(".", $path);
$this = array();
$this["site"] = $x[0];
$this["area"] = $x[1];
$this["page"] = $x[2];
$this["part"] = $x[3];
d67 3
a69 2
$x = explode(",", $embed);
$embed = Array("css" => 0, "js" => 0);
d71 1
a71 1
    $embed[$name] = 1;
d73 1
d75 2
a76 2
#   determine root URL
if ($root == "absolute") {
d79 1
a79 1
    $rooturl = "http://meta.openpkg.org/";
d81 1
a81 1
else {
d84 5
a88 1
    $rooturl = "/openpkg-meta/";
d91 2
a92 1
#   determine last-modification
d94 5
a98 7
$headers = isset($_SERVER["SERVER_VERSION"]) ? apache_request_headers() : array();
$if_modified_since = preg_replace('/;.*$/', '', $headers["If-Modified-Since"]);
if ($if_modified_since) {
    if ($if_modified_since == $gmtime) {
        header("HTTP/1.1 304 Not Modified");
        exit(0);
    }
d100 1
a100 1
header("Last-Modified: $gmtime");
d108 3
a110 2
header(sprintf("Content-type: %s", $spec[$type]["type"]));
header(sprintf("Cache-Control: max-age=%d, must-revalidate", $spec[$type]["maxage"]));
d154 1
a154 1
if ($pane == "1")
d156 1
a156 1
else if ($pane == "2")
d178 1
a178 1
            if ($embed["css"]) {
d188 1
a188 1
                echo " href=\"$rooturl?type=css&amp;pane=$pane&amp;stretch=$stretch\"/>\n";
d192 1
a192 1
            if ($embed["js"]) {
d202 1
a202 1
                echo " src=\"$rooturl?type=js&amp;pane=$pane&amp;path=$path\"></script>\n";
d213 1
a213 1
    $content = undivert($type);
@


1.14
log
@pass stretching information down to JavaScript code and for now (while I'm hacking) expire the content immediately
@
text
@d150 1
a150 1
divert("html")
@


1.13
log
@flush all other pending changes to improve the website layout
@
text
@d90 3
a92 3
    "html" => array(type => "text/html",        maxage => 10),
    "css"  => array(type => "text/css",         maxage => 10),
    "js"   => array(type => "text/javascript",  maxage => 10),
d173 1
a173 1
                echo " href=\"$rooturl?type=css&amp;pane=$pane\"/>\n";
@


1.12
log
@cleanups for 2006
@
text
@d27 14
d42 6
a47 5
$type  = isset($_GET["type"])  ? $_GET["type"]  : "html";
$path  = isset($_GET["path"])  ? $_GET["path"]  : "project";
$embed = isset($_GET["embed"]) ? $_GET["embed"] : "";
$pane  = isset($_GET["pane"])  ? $_GET["pane"]  : "2";
$root  = isset($_GET["root"])  ? $_GET["root"]  : "relative";
a133 5
#   page epilog processing
function canvas_output () {
    global $type;
}

d144 2
a145 1
include("canvas-hack.php");
d149 1
a150 1

d159 4
d164 1
d170 2
d175 2
d178 1
d184 2
a189 1
        <script language="php">echo undivert("html-head");</script>
@


1.11
log
@support absolute and relative root URL (default is now relative to circumvent IE Javascript loading problems)
@
text
@d3 2
a4 2
##  Copyright (c) 2005 OpenPKG Foundation e.V. <http://openpkg.net/>
##  Copyright (c) 2005 Ralf S. Engelschall <http://engelschall.com/>
d52 1
a52 1
    #   disadvantage: IE fails to load javascript, HTTPs complains
d58 1
a58 1
    $rooturl = "/meta/";
d145 2
a146 1
        <meta name="Copyright" content="OpenPKG Foundation e.V."/>
a156 2
        </script>
        <script language="php">
@


1.10
log
@generate the title automatically, too
@
text
@d32 1
d50 10
a59 1
$rooturl = "http://meta.openpkg.org/";
@


1.9
log
@more cleanups and bugfixes
@
text
@d117 1
@


1.8
log
@be more XHTML/Strict complaint
@
text
@d154 1
a154 1
                echo " src=\"$rooturl?type=js&amp;pane=$pane\"></script>\n";
@


1.7
log
@allow browsers to cache the stylesheet and javascript functions
@
text
@d143 1
a143 1
                echo " href=\"$rooturl?type=css&pane=$pane\"/>\n";
d153 2
a154 2
                echo "<script language=\"javascript\" type=\"text/javascript\"";
                echo " src=\"$rooturl?type=js&pane=$pane\"></script>\n";
@


1.6
log
@ops, fix root URL
@
text
@d143 1
a143 1
                echo " href=\"$rooturl?type=css&pane=$pane&path=$path\"/>\n";
d154 1
a154 1
                echo " src=\"$rooturl?type=js&pane=$pane&path=$path\"></script>\n";
@


1.5
log
@rename files to be more pretty on the shell ;-)
@
text
@d49 1
a49 1
$rooturl = "http://en1.home.engelschall.com/openpkg-meta/";
@


1.4
log
@pass pane through
@
text
@d117 1
a117 1
include("canvas-navtab.php");
d119 1
a119 1
    include("canvas-navpath.php");
d121 1
a121 1
    include("canvas-navbar.php");
@


1.3
log
@add support for one and two pane layouts: one pane for applications like cvstrac which need the full browser width, and two pane for regular web pages
@
text
@d143 1
a143 1
                echo " href=\"$rooturl?type=css&path=$path\"/>\n";
d154 1
a154 1
                echo " src=\"$rooturl?type=js&path=$path\"></script>\n";
@


1.2
log
@polish canvas optic with latest images
@
text
@d31 1
d116 1
d118 4
a121 1
include("canvas-navbar.php");
@


1.1
log
@first cut for new meta.openpkg.org canvas rendering framework
@
text
@d48 1
a48 1
$rooturl = "http://meta.openpkg.org/";
@