Michele Giuseppe Fadda Michele Giuseppe Fadda - 6 months ago 181
iOS Question

FBSDK secure network request failed iOS9

We were getting App Transport Security errors in the simulator (Xcode 7 running on OSX 10.10.5). We implemented FB guidelines for iOS9.

FB graph api invoked was that based on SDK v.3.24.

We had added the Facebook SDK, successfully compiled with Bit, after inserting the required App Transport Security exceptions into the App info.plist file.

The errors looked like those the Facebook documentation in lack of ATS info.plist configuration,
i. e.:

NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)
2015-09-21 15:25:20.862 flirtop[41983:2110078] FBSDKLog: WARNING: FBSDK secure network request failed. Please verify you have configured your app for Application Transport Security compatibility described at https://developers.facebook.com/docs/ios/ios9
2015-09-21 15:25:21.131 flirtop[41983:2110592] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)
2015-09-21 15:25:21.132 flirtop[41983:2110078] FBSDKLog: WARNING: FBSDK secure network request failed. Please verify you have configured your app for Application Transport Security compatibility described at https://developers.facebook.com/docs/ios/ios9
2015-09-21 15:25:21.135 flirtop[41983:2110078] Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo={NSURLErrorFailingURLPeerTrustErrorKey=, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, _kCFStreamErrorDomainKey=3, _kCFStreamErrorCodeKey=-9802, NSErrorPeerCertificateChainKey={type = immutable, count = 2, values = (
0 :
1 :
)}, NSUnderlyingError=0x7fec5d300b40 {Error Domain=kCFErrorDomainCFNetwork Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo={NSErrorFailingURLStringKey=https://graph.facebook.com/v2.4, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, _kCFNetworkCFStreamSSLErrorOriginalValue=-9802, kCFStreamPropertySSLPeerCertificates={type = immutable, count = 2, values = (
0 :
1 :
)}, _kCFStreamPropertySSLClientCertificateState=0, kCFStreamPropertySSLPeerTrust=, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., _kCFStreamErrorDomainKey=3, NSErrorFailingURLKey=https://graph.facebook.com/v2.4, _kCFStreamErrorCodeKey=-9802}}, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., --- SNIP --


our plist, with App Id omitted, was the following

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>com.fwlab.$(PRODUCT_NAME:rfc1034identifier)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>BNDL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>CFBundleURLTypes</key>
<array>
<dict>
<key>CFBundleURLSchemes</key>
<array>
<string>OMITTED</string>
</array>
</dict>
</array>
<key>FacebookAppID</key>
<string>OMITTED</string>
<key>FacebookDisplayName</key>
<string>Flirtop</string>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>graph.facebook.com</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
<key>NSExceptionRequiresForwardSecrecy</key>
<false/>
<key>NSExceptionAllowsInsecureHTTPLoads</key>
<true/>
</dict>
<key>facebook.com</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
<key>NSExceptionRequiresForwardSecrecy</key>
<false/>
<key>NSExceptionAllowsInsecureHTTPLoads</key>
<true/>
</dict>
<key>fbcdn.net</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
<key>NSExceptionRequiresForwardSecrecy</key>
<false/>
</dict>
<key>akamaihd.net</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
<key>NSExceptionRequiresForwardSecrecy</key>
<false/>
</dict>
</dict>
</dict>
<key>LSApplicationQueriesSchemes</key>
<array>
<string>fbapi</string>
<string>fbapi20130214</string>
<string>fbapi20130410</string>
<string>fbapi20130702</string>
<string>fbapi20131010</string>
<string>fbapi20131219</string>
<string>fbapi20140410</string>
<string>fbapi20140116</string>
<string>fbapi20150313</string>
<string>fbapi20150629</string>
<string>fbauth</string>
<string>fbauth2</string>
<string>fb-messenger-api20140430</string>
<string>fb-messenger-platform-20150128</string>
<string>fb-messenger-platform-20150218</string>
<string>fb-messenger-platform-20150305</string>
</array>
</dict>
</plist>

Answer

Solved. The info.plist which got copied into the App bundle was not the right one. This works without the graph.facebook.com entry, which is not necessary.

It became apparent when I tried using Facebook Login and it complained that the url fbauth2 was not present in the info.plist file.

Incidentally, the correct ending part of the Info.plist is the following, which includes the correct complete Facebook SDK setup. NSExceptionRequiresForwardSecrecy = False is enough for FB graph api to work.

As FB servers are not under my control, probably I should use NSThirdPartyException, however the following setup works.

-- SNIP --
<key>UIMainStoryboardFile</key>
    <string>Main</string>
    <key>UIRequiredDeviceCapabilities</key>
    <array>
        <string>armv7</string>
    </array>
    <key>UIStatusBarTintParameters</key>
    <dict>
        <key>UINavigationBar</key>
        <dict>
            <key>Style</key>
            <string>UIBarStyleDefault</string>
            <key>Translucent</key>
            <false/>
        </dict>
    </dict>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSExceptionDomains</key>
        <dict>
            <key>facebook.com</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSExceptionRequiresForwardSecrecy</key>
                <false/>
            </dict>
            <key>fbcdn.net</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSExceptionRequiresForwardSecrecy</key>
                <false/>
            </dict>
            <key>akamaihd.net</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSExceptionRequiresForwardSecrecy</key>
                <false/>
            </dict>
        </dict>
    </dict>
    <key>LSApplicationQueriesSchemes</key>
    <array>
        <string>fbapi</string>
        <string>fbapi20130214</string>
        <string>fbapi20130410</string>
        <string>fbapi20130702</string>
        <string>fbapi20131010</string>
        <string>fbapi20131219</string>
        <string>fbapi20140410</string>
        <string>fbapi20140116</string>
        <string>fbapi20150313</string>
        <string>fbapi20150629</string>
        <string>fbauth</string>
        <string>fbauth2</string>
        <string>fb-messenger-api20140430</string>
        <string>fb-messenger-platform-20150128</string>
        <string>fb-messenger-platform-20150218</string>
        <string>fb-messenger-platform-20150305</string>
    </array>
</dict>
</plist>
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