Preface 1
Chapter 1: Introduction to CherryPy 7
Overview 7
History of CherryPy 8
The Community 9
CherryPy Project Strengths 10
Beyond CherryPy 11
Through the Book 11
Summary 12
Chapter 2: Download and Install CherryPy 13
Requirements 13
Overview 14
Installation from a Tarball 16
Installation through Easy Install 18
Installation from Subversion 20
Testing your Installation 23
Keeping CherryPy Up to Date 23
Summary 24
Chapter 3: Overview of CherryPy 25
Vocabulary 25
Basic Example 26
Built-In HTTP Server 32
Internal Engine 32
Configuration 33
Object Publisher Engine 36
Library 38
The Autoreload Feature 39
The Caching Module 39
Table of Contents
[ ii ]
The Coverage Module 39
The Encoding/Decoding Module 40
The HTTP Module 40
The Httpauth Module 40
The Profiler Module 40
The Sessions Module 41
The Static Module 42
The Tidy Module 42
The Wsgiapp Module 42
The XML-RPC Module 42
Tools 43
Error and Exception Handling 44
Summary 49
Chapter 4: CherryPy in Depth 51
HTTP Compliance 51
Multiple HTTP Servers 52
Multi-Threaded Application Server 54
URI Dispatching 55
HTTP Method Dispatcher 55
Routes Dispatcher 57
Virtual Host Dispatcher 58
Hook into CherryPy's Core Engine 59
CherryPy Toolbox 61
Basic Authentication Tool 62
Caching Tool 63
Decoding Tool 64
Digest Authentication Tool 65
Encode Tool 66
Error Redirect Tool 67
Etag Tool 67
Gzip Tool 69
Ignore Headers Tool 69
Log Headers Tool 70
Log Tracebacks Tool 71
Proxy Tool 72
Referer Tool 73
Response Headers Tool 74
Trailing Slash Tool 75
XML-RPC Tool 76
Toolbox 77
Creating a Tool 77
Table of Contents
[ iii ]
Static Resource Serving 81
Using the Staticfile Tool to Serve a Single File 81
Using the Staticdir Tool to Serve a Complete Directory 83
Bypassing Static Tools to Serve Static Content 85
WSGI Support 86
Hosting a WSGI Application within the CherryPy WSGI Server 87
Hosting a CherryPy WSGI Application within a
Third-Party WSGI Server 89
Summary 90
Chapter 5: A Photoblog Application 91
A Photoblog Application 91
Photoblog Entities 92
Vocabulary 94
DBMSes Overview 95
Relational Database Management System (RDBMS) 95
Object-Oriented Database Management System (OODBMS) 96
XML Database Management System (XMLDBMS) 97
Object-Relational Mapping 97
Python Object-Relational Mappers 98
Photoblog Application Entity Modeling 108
Mapping Entities 109
Units and UnitProperties 111
Associating Units 112
The Sandbox Interface 112
Querying Units 113
Extending the Data Access Layer 114
Summary 117
Chapter 6: Web Services 119
Traditional Web Development 119
Separation of Concerns 121
REST 122
Uniform Resource Identifier 123
HTTP Methods 124
Putting it Together 128
REST Interface through CherryPy 130
Atom Publishing Protocol 131
Atom XML-Document Format 132
APP Implementation 134
Summary 136
Table of Contents
[ iv ]
Chapter 7: The Presentation Layer 137
HTML 137
XML 138
XHTML 138
CSS 139
DHTML 141
Templating 142
Kid—The Templating Engine 142
Overview 142
Kid's Attributes 144
XML-Based Templating Language 144
Variable Substitution 144
Conditional Statement 144
Looping Mechanism 145
Extensibility 146
Other Attributes 147
Photoblog Design Preparation 147
Targetting the User Agent 147
Tools 148
Global Design Goals 148
Design Directory Layout 149
CherryPy—Encapsulating the Template Rendering Process 149
Photoblog Design in Detail 151
Basic Structure 151
Mochikit 156
Developing the Photoblog Design 157
HTML Code 157
Adding a Link 158
Handling the End-User Actions 158
Amending the Template 159
Amending the CSS 159
Let's be More Flexible... 160
Summary 161
Chapter 8: Ajax 163
Rise of the Rich-Client Applications 163
Ajax 164
Ajax—Advantages and Drawbacks 165
Behind the Scene: XMLHttpRequest 166
Performing a GET Request 167
Performing a Content-Negotiated GET Request 168
Performing a POST Request 169
Performing PUT, HEAD, or DELETE Requests 170
Table of Contents
Cookies 170
Authentication using Digest or Basic Schemes 170
JSON 176
Applying Ajax to our Application 178
Defining the Required Namespaces 178
Implementing Namespaces 179
Adding Methods to the Classes 179
Method to Create a New Album 183
Method to Update an Existing Album 190
Method to Delete an Existing Album 190
Summary 191
Chapter 9: Testing 193
Why Testing 193
Planning a Test 194
Common Testing Approach 195
Unit Testing 195
unittest 196
doctest 201
Unit Testing Web Applications 205
Performance and Load Testing 213
Functional Testing 218
Application under Test 219
Selenium Core 222
Selenium IDE 227
Selenium Remote Control 231
Summary 233
Chapter 10: Deployment 235
Configuration 235
CherryPy—Web and Engine Configuration System 235
Photoblog Application Configuration System 238
Deployment 240
Apache with mod_rewrite Module 241
Lighttpd with mod_proxy Module 243
Apache with mod_python Module 244
mod_python with WSGI Application 246
SSL 246
Creating a Certificate and a Private Key 247
Using the CherryPy SSL Support 248
Using the lighttpd SSL Support 250
Using the Apache mod_ssl Support 251
Summary 251
Index 253
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