Professional iOS network programming : connecting the enterprise to the iPhone and iPad

The iPhone and iPad have made a powerful impact on the business world. Developers creating iOS apps for the enterprise face unique challenges involving networking, system integration, security, and device management. This Wrox guide provides everything you need to know to write iOS apps that integrate with enterprise network resources, providing options for networking iOS devices to enterprise systems and to each other.

Offers a complete compendium of methods and techniques for networked communication between iOS applications and other platforms and devices Includes instruction on incorporating synchronous and asynchronous HTTP requests, security, communication issues, and more Covers payload handling, network security, GameKit and Bonjour communications, and low-level network communications

Professional iOS Network Programming focuses on the networking aspects of iOS and its relationship to remote data sources, offering a truly unique approach.

Author Notes

Jack Cox is a Director at CapTech Ventures with broad experience designing complex systems, managing project teams, and collaborating with business executives to develop innovative applications.
Nathan Jones has experience in enterprise-wide system integration and mobility including strategy definition, application development, and post-development release management.
John Szumski is an enterprise software developer with experience ranging from middleware web services to mobile development on all major platforms.
Wrox Professional guides are planned and written by working programmers to meet the real-world needs of programmers, developers, and IT professionals. Focused and relevant, they address the issues technology professionals face every day. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.

Introduction	p. xix
Part I Understanding IOS and Enterprise Networking
Chapter 1 Introducing IOS Networking Capabilities	p. 3
Understanding the Networking Frameworks	p. 3
iOS Networking APIs	p. 4
NSURL Connection	p. 5
Game Kit	p. 5
Bonjour	p. 5
NSStream	p. 6
CFNetwork	p. 6
BSD Sockets	p. 6
Run Loops	p. 7
Run Loop Modes	p. 8
Summary	p. 8
Chapter 2 Designing Your Service Architecture	p. 9
Remote Façade Pattern	p. 10
Example Façade Services	p. 12
Example Façade Clients	p. 15
Service Versioning	p. 17
Example Versioned Services	p. 18
Example Client Using Versioned Services	p. 19
Service Locators	p. 20
Summary	p. 24
Part II HTTP Requests: The Workhorse of IOS Networking
Chapter 3 Making Requests	p. 27
Introducing HTTP	p. 28
Understanding HTTP Requests and Responses	p. 29
URL Structure	p. 30
Request Contents	p. 31
Response Contents	p. 33
High-Level iOS HTTP APIs	p. 35
Objects Common to All Request Types	p. 35
Synchronous Requests	p. 39
Queued Asynchronous Requests	p. 42
Asynchronous Requests	p. 45
Advanced HTTP Manipulation	p. 53
Using Request Methods	p. 53
Cookie Manipulation	p. 54
Advanced Headers	p. 60
Summary	p. 63
Chapter 4 Generating and Digesting Payloads	p. 65
Web Service Protocols and Styles	p. 66
Simple Object Access Protocol (SOAP)	p. 66
Representational State Transfer (REST)	p. 68
Choosing an Approach	p. 69
Payloads	p. 70
Introducing Payload Data Formats	p. 70
Digesting Response Payloads	p. 73
Generating Request Payloads	p. 86
Summary	p. 92
Chapter 5 Handling Errors	p. 93
Understanding Error Sources	p. 93
Operating System Errors	p. 95
HTTP Errors	p. 101
Application Errors	p. 102
Rules of Thumb for Handling Errors	p. 103
Include Error Handling in the Interface Contract	p. 103
Error Statuses Lie	p. 104
Validate the Payload	p. 104
Separate Errors from Normal Business Conditions	p. 104
Always Check HTTP Status	p. 105
Always Check NSError	p. 105
Develop a Consistent Method for Handling Errors	p. 105
Always Set a Timeout	p. 105
Gracefully Handling Network Errors	p. 105
Design Pattern Description	p. 106
Command Dispatch Pattern Example	p. 111
Summary	p. 116
Part III Advanced Networking Techniques
Chapter 6 Securing Network Traffic	p. 119
Verifying Server Communication	p. 120
Authenticating with HTTP	p. 124
HTTP Basic, HTTP Digest, and NTLM Authentication	p. 125
Client-Certificate Authentication	p. 127
Message Integrity with Hashing and Encryption	p. 131
Hashing	p. 132
Message Authentication Codes	p. 136
Encryption	p. 139
Storing Credentials Securely on the Device	p. 151
Summary	p. 155
Chapter 7 Optimizing Request Performance	p. 157
Measuring Network Performance	p. 158
Network Bandwidth	p. 158
Network Latency	p. 159
Device Power	p. 160
Optimizing Network Operations	p. 161
Reducing Request Bandwidth	p. 161
Reducing Request Latency	p. 168
Avoid Network Requests	p. 170
Summary	p. 173
Chapter 8 Low-Level Networking	p. 175
BSD Sokets	p. 176
Configuring a Socket Server	p. 177
Connecting as a Socket Client	p. 178
CFNetwork	p. 182
NSStream	p. 186
Summary	p. 190
Chapter 9 Testing and Manipulating Network Traffic	p. 191
Observing Network Traffic	p. 192
Sniffing Hardware	p. 192
Sniffing Software	p. 193
Manipulating Network Traffic	p. 200
Setting Up Charles	p. 202
HTTP Breakpoints	p. 205
Rewrite Rules	p. 207
Simulating Real-World Network Conditions	p. 209
Summary	p. 211
Chapter 10 Using Push Notifications	p. 213
Scheduling Local Notifications	p. 214
Creating Local Notifications	p. 214
Canceling Local Notifications	p. 218
Handling the Arrival of Local Notifications	p. 219
Registering and Responding to Remote Notifications	p. 223
Configuring Remote Notifications	p. 224
Registering for Remote Notifications	p. 229
Remote Notification Playloads	p. 234
Sending Remote Notifications	p. 236
Responding to Remote Notifications	p. 240
Understanding Notification Best Practices	p. 243
Summary	p. 244
Part IV Networking App to App
Chapter 11 Inter-App Communication	p. 247
URL Schemes	p. 248
Implementing a Custom URL Scheme	p. 248
Sensing the presence of Other Apps	p. 251
Advanced Communication	p. 252
Shared Keychains	p. 257
Enterprise SSO	p. 257
Detecting Previous Installations	p. 264
Summary	p. 266
Chapter 12 Device-to-Device Communication with Game Kit	p. 267
Game Kit Basics	p. 268
Peer-to-Peer Networking	p. 271
Connecting to a Session	p. 272
Sending Data to Peers	p. 274
Client-Server Communication	p. 279
Summary	p. 280
Chapter 13 Ad-Hoc Networking with Bonjour	p. 281
Zeroconf Overview	p. 282
Addresses	p. 282
Resolution	p. 283
Discovery	p. 283
Bonjour Overview	p. 284
Publishing a Service	p. 284
Browsing for Services	p. 290
Resolving a Services	p. 293
Communicating with a Service	p. 295
Implementing Bonjour-Based Applications	p. 299
Employee Application	p. 301
Customer Application	p. 309
Summary	p. 317
Index	p. 319

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