Advanced .NET Remoting

422 Pages·2002·9.004 MB·English

by  Ingo Rammer (auth.)

Advanced Remoting
.NET
INGORAMMER
APress Media, LLC
Advanced .NET Remoting
Copyright ©2002 by Ingo Rammer
Originally published by Apress in 2002
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ISBN 978-1-59059-025-6 ISBN 978-1-4302-0833-4 (eBook)
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ToKatja
Bach day that starts with you being nearby can only turn out great.
Iloveyou.
Contents at a Glance
About the Author .....................................................x i
About the Technical Reviewer ......................................x i
Acknowledgments ....................................................x iii
Introduction .........................................................x v
Chapter 1 Introduction to Remoting ................ ~ .............. 1
Chapter 2 • NET Remoting Basics ...................................9
Chapter 3 Remoting in Action .................................... .27
Chapter 4 Configuration and Deployment .........................8 7
Chapter 5 Securing. NET Remoting ...............................1 25
Chapter 6 In-Depth .NET Remoting ............................... 135
Chapter 7 Inside the Framework .................................2 01
Chapter 8 Creation of Sinks .................................... .237
Chapter 9 Extending. NET Remoting ..............................2 49
Chapter 10 Developing a Transport Channel .....................3 17
Chapter 11 Context Matters .......................................3 75
Index ................................................................3 93
v
Contents
About the Author ................................................x i
About the Technical Reviewer ..............................x i
Acknowledgments ................................................x iii
Introduction .....................................................x v
Chapter 1 Introduction to Remoting .....................1
What 1s Remoting? ....................................................1
Scenarios for . NET Remoting ........................................2
Evolution of Remoting ...............................................3
Summary ................................................................ 7
Chapter 2 • NET Remoting Basics ...........................9
Advantages of • NET Remoting ........................................9
Your First Remoting Application ..................................1 4
Summary ...............................................................2 6
Chapter 3 Remoting in Action .............................
27
Types of Remoting ...................................................2 7
Types of 1nvocation ................................................5 2
Mul tiserver Configuration .........................................6 8
Shared Assemblies .................................................. .77
Summary ...............................................................8 6
Chapter 4 Configurat ion and Deployment ..............
87
Configuration Files ................................................8 8
Deployment ..........................................................1 11
Summary ..............................................................1 23
vii
Contents
Chapter 5 Securing. NET Remoting ......................
125
Deployment for Authenticated Use ................................ 125
Deployment for Encrypted Use ..................................... 133
Summary ..............................................................1 34
Chapter 6 In-Depth. NET Remoting .......................
135
Managing an Object s Li fetime .................................... 135
I
The Ins and Outs of Versioning .................................. 162
Using Asynchronous CaUs ......................................... 179
Remoting Events ....................................................1 85
Summary .............................................................. 199
Chapter 7 Inside the Framework ........................
.201
Looking at the Five Elements of Remoting .......................2 01
Client-Side Messaging .............................................2 14
Server-Side Messaging .............................................2 16
Al! About Asynchronous Messaging ................................2 22
Summary ..............................................................2 36
Chapter 8 Creat ion of Sinks .............................
237
Understanding Sink Providers .....................................2 37
Using Dynamic Sinks ...............................................2 46
Summary ..............................................................2 48
Chapter 9 Extending. NET Remoting ....................
249
Creating a Compression Sink ......................................2 50
Encrypting the Transfer .......................................... .269
Passing Runtime Information ......................................2 86
Changing the Programming Model ..................................2 99
Using a Custom proxy ..............................................3 08
Summary ..............................................................3 16
viii
Contents
Chapter 10 Developing a Transport Channel ..........3 17
Protocol Considerations ...........................................3 17
Encapsulating the Protocols .......................................3 23
Implementing the Client Channel .................................3 46
Implementing the Server Channel .................................3 55
Wrapping the Channel ..............................................3 66
Using the SMTPChannel .............................................3 69
Summary ..............................................................3 73
Chapter 11 Context Matters ..............................3 75
Working at the MetaData Level ....................................3 77
Creating a Context .................................................3 78
Checking Parameters in an IMessageSink .........................3 87
Summary ..............................................................3 91
Conclusion ..........................................................3 92
Index ................................................................
393
ix
About the Author
INGO RAMMER is CEa and cofounder of Sycom Software, an Austrian software con
sulting company. He started his professional career years ago with obscure
scripting languages such as Perl and Tcl/Tk on various versions of Unix. Shortly
after this he converted to the Windows platform and created some large-scale
distributed applications with Visual Basic and ASP. He implemented cross
platform remote procedure calls using XML and HTTP POST way before the
term "Web Services" had been coined for this technology, and he still focuses on
the integration of applications written in different programming languages
and platforms.
About the
Technical Reviewer
KENT SHARKEY is currently employed at Microsoft as a Technical Evangelist for the
.NET Framework and Visual Studio .NET. He roams the land striving to smite
the heretics, convert the heathens, and celebrate the faithful. In between he
sleeps (far too little), bangs his head against the .NET Framework (far too often,
with little result), and tries to help everyone however he can. He lives in
Redmond with the three women ofhis life: Margaret (the wife), Squirrel (the
warrior), and Cica (the princess).
xi
Acknowledgments
1 STARTED WRITJNG MY FIRST computer programs mostly due to my father, who was
interested in computers at a time when only a few people saw the potential in
this upcoming technology. His enthusiasm about computers made it possible for
me to play around with such weird devices as the Commodore Plus 4, the Sinclair
QL, and the Philips MSX-2 at about the age often or eleven. AlI ofthose comput
ers had one thing in common-as soon as they had been powered on, you landed
in the programming language, which of course was BASIC at that time (the real
one, when AUTO 10 was essential). Learning to program computers therefore has
been an almost natural activity for me. 1 reaUy want to thank both my mother
Helga and my father Willi for giving me agreat childhood and for providing me
with aU the support 1 needed to quench my thirst for knowledge at this time.
The person who shaped the greatest part of my professionallife was Juergen
Nitsche, who dared to employ me as the lead programmer for a series of custom
business applications when 1 was a 16-year-old high school boy. This part
nership turned out so well that about four years later we founded our own
company, of which we both are still CEOs and owners. Thanks for your trusting
me from the beginning.
1 also want to say thanks to my fellows at the NOVA framework team, espe
cially Christian "Gumbo" Wehrl and Harald Haefele, for bearing with myabsence
during the course of writing this book and for aU the great VB vs. Java vs. C++ vs .
.N ET discussions we had. Best wishes also to Robert "Stony" Steinfest, who has
the most interesting developer personality I've ever come across. Your unique,
friendly way of dealing with users, testers, and junior programmers alike reaUy is
legendary. You guys are brilliant!
As 1 sometimes get too obsessed about working with Microsoft technology,
kudos go out to Edgar Hucek and Markus Gaertner for reminding me that this
world is about choices. (That is, Ed is a real Open Source fan and Markus is the
best Java guru I've gotten to know.)
1 also want to thank Jay "Saurik" Freeman for creating the Anakrino MSIL
to-C# decompiler. This tool aUowed me to understand the .NET Remoting
Framework at a level that made it possible for me to write this book. !fyou also
want or need to understand one or another part of the .NET platform, be sure
to grab a free copy of this tool at http://www • ana krino. org.
Last but not least, this book would not have been possible without the great
Apress team who worked with me during the last months. This starts with Dan
Appleman and Gary Cornell, whogave me the opportunity to write for the best
publisher when it comes to .NET books. 1 also want to thank Kent Sharkey from
Microsoft for agreeing to tech review this book. My biggest thanks go out to Ami
xiii