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improvements to PageCompiler (new precondition page attribute)

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This commit is contained in:
Guenter Obiltschnig 2008-06-10 15:21:44 +00:00
parent 9f751f5e9a
commit ecefa6121c
3 changed files with 730 additions and 677 deletions
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50
PageCompiler/doc/PageCompilerUserGuide.page
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@ -2,7 +2,8 @@ POCO C++ Server Page Compiler User Guide
PageCompiler
!!!Introduction
PageCompiler is a command line tool that translates HTML files (and other kinds of files), into
PageCompiler is a command line tool that translates HTML files (and other kinds of files, such as
cascading style sheet files), into
C++ code, more precisely, subclasses of Poco::Net::HTTPRequestHandler.
The source files can contain special directives that allow it to include C++ code into
the source file. The syntax of this directives is based on the syntax used for
@ -179,6 +180,53 @@ Allows you to specify whether the response is sent using chunked transfer encodi
Defaults to <[true]>.
Set the value to <[false]> to disable chunked transfer encoding.
!precondition
Allows the specification of a precondition, which must be a C++ expression
valid in the context of the request handler. This can be used to implement
authentication.
Example:
<%@ page
class="AuthSamplePage"
precondition="checkCredentials(request, response)"
%>
<%!
bool checkCredentials(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response)
{
bool isAuthenticated = false;
if (request.hasCredentials())
{
std::string scheme;
std::string authInfo;
request.getCredentials(scheme, authInfo);
if (scheme == Poco::Net::HTTPBasicCredentials::SCHEME)
{
Poco::Net::HTTPBasicCredentials cred(request);
isAuthenticated = (cred.getUsername() == "joeuser" && cred.getPassword() == "s3cr3t");
}
}
if (!isAuthenticated)
{
response.requireAuthentication("Restricted Area");
response.send();
}
return isAuthenticated;
}
%>
<html>
<head>
<title>Restricted Area</title>
</head>
<body>
<h1>Restricted Area</h1>
</body>
</html>
----
!session (OSP only)
For use with the POCO Open Service Platform only.

7
PageCompiler/src/CodeWriter.cpp
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@ -1,7 +1,7 @@
//
// CodeWriter.cpp
//
// $Id: //poco/Main/PageCompiler/src/CodeWriter.cpp#1 $
// $Id: //poco/1.3/PageCompiler/src/CodeWriter.cpp#1 $
//
// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
@ -234,6 +234,10 @@ void CodeWriter::writeHandler(std::ostream& ostr)
{
ostr << "void " << _class << "::handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response)\n";
ostr << "{\n";
if (_page.has("page.precondition"))
{
ostr << "\tif (!(" << _page.get("page.precondition") << ")) return;\n\n";
}
writeSession(ostr);
writeForm(ostr);
writeRequest(ostr);
@ -289,4 +293,5 @@ void CodeWriter::writeRequest(std::ostream& ostr)
ostr << "\tresponse.setContentType(\"" << contentType << "\");\n";
ostr << "\n";
ostr << "\tstd::ostream& ostr = response.send();\n";
ostr << "\tif (request.getMethod() == Poco::Net::HTTPRequest::HTTP_HEAD) return;\n";
}

4
PageCompiler/src/CodeWriter.h
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@ -1,7 +1,7 @@
//
// CodeWriter.h
//
// $Id: //poco/Main/PageCompiler/src/CodeWriter.h#1 $
// $Id: //poco/1.3/PageCompiler/src/CodeWriter.h#1 $
//
// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
@ -50,7 +50,7 @@ public:
CodeWriter(const Page& page, const std::string& clazz);
/// Creates the CodeWriter, using the given Page.
~CodeWriter();
virtual ~CodeWriter();
/// Destroys the PageReader.
virtual void writeHeader(std::ostream& ostr, const std::string& headerFileName);