CFNetwork crash on proxy auto-discovery with iOS 10.2
| Originator: | rocco.zanni | ||
| Number: | rdar://29948303 | Date Originated: | 2017/01/10 |
| Status: | Open | Resolved: | |
| Product: | iOS + SDK | Product Version: | 10.2 |
| Classification: | Reproducible: | Sometimes |
Area:
CFNetwork Framework
Summary:
When using CFNetwork to make an HTTP request in order to have a controllable readable stream, if the stream is configured to use system proxy settings, opening the stream leads to application crash. Example code:
// Create http request
let message = CFHTTPMessageCreateRequest(kCFAllocatorDefault, "GET", self.url, kCFHTTPVersion1_1).takeRetainedValue()
// Create stream
let readStream = CFReadStreamCreateForHTTPRequest(kCFAllocatorDefault, message).takeRetainedValue()
// Set stream properties
CFReadStreamSetProperty(readStream, NSStreamNetworkServiceTypeBackground, NSStreamNetworkServiceTypeBackground)
CFReadStreamSetProperty(readStream, kCFStreamPropertyHTTPShouldAutoredirect, kCFBooleanTrue)
// Configure proxy
if let proxySettings = CFNetworkCopySystemProxySettings()?.takeRetainedValue() {
CFReadStreamSetProperty(readStream, kCFStreamPropertyHTTPProxy, proxySettings)
}
Steps to Reproduce:
1. Configure proxy auto-discovery url in iOS settings
2. Configure a CFReadStream to use system proxy settings
3. Open the stream
Comments
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