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POCan't connect to Mobile Safari in iOS Simulator using Node
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copied!<p>I'm trying to emulate the message exchange between Safari & Mobile Safari when remote debugging (using Node).</p> <p>I've sniffed the traffic between the two; they're exchanging binary plists over TCP. I've managed to replicated the packets up to the point where a particular tab is chosen for debugging ("socket setup"), but after this Mobile Safari ignores my plist instructions and instead sends back a listing.</p> <p>Here's the raw tcpdump of the socket setup packet Safari is sending, and a JSON representation of the plist it contains:</p> <pre><code>10:36:42.318662 IP6 localhost.58028 > localhost.27753: Flags [P.], seq 1601:1930, ack 803, win 9125, options [nop,nop,TS val 69074378 ecr 69074378], length 329 0x0000: 6000 0000 0169 0640 0000 0000 0000 0000 `....i.@........ 0x0010: 0000 0000 0000 0001 0000 0000 0000 0000 ................ 0x0020: 0000 0000 0000 0001 e2ac 6c69 344e 2443 ..........li4N$C 0x0030: 4e32 497b 8018 23a5 0171 0000 0101 080a N2I{..#..q...... 0x0040: 041d fdca 041d fdca 6270 6c69 7374 3030 ........bplist00 0x0050: d201 0203 0c5a 5f5f 6172 6775 6d65 6e74 .....Z__argument 0x0060: 5a5f 5f73 656c 6563 746f 72d4 0405 0607 Z__selector..... 0x0070: 0809 0a0b 5f10 1b57 4952 4170 706c 6963 ...._..WIRApplic 0x0080: 6174 696f 6e49 6465 6e74 6966 6965 724b ationIdentifierK 0x0090: 6579 5f10 1a57 4952 436f 6e6e 6563 7469 ey_..WIRConnecti 0x00a0: 6f6e 4964 656e 7469 6669 6572 4b65 795c onIdentifierKey\ 0x00b0: 5749 5253 656e 6465 724b 6579 5f10 1457 WIRSenderKey_..W 0x00c0: 4952 5061 6765 4964 656e 7469 6669 6572 IRPageIdentifier 0x00d0: 4b65 795f 1016 636f 6d2e 6170 706c 652e Key_..com.apple. 0x00e0: 6d6f 6269 6c65 7361 6661 7269 5f10 2441 mobilesafari_.$A 0x00f0: 3535 3134 3645 372d 3244 4544 2d34 3832 55146E7-2DED-482 0x0100: 412d 3839 3133 2d31 3033 3337 4537 4634 A-8913-10337E7F4 0x0110: 3330 465f 1024 3230 3041 3935 3146 2d30 30F_.$200A951F-0 0x0120: 3839 432d 3445 3741 2d41 3642 322d 3331 89C-4E7A-A6B2-31 0x0130: 4235 4432 3737 4341 3635 1001 5f10 185f B5D277CA65.._.._ 0x0140: 7270 635f 666f 7277 6172 6453 6f63 6b65 rpc_forwardSocke 0x0150: 7453 6574 7570 3a00 0800 0d00 1800 2300 tSetup:.......#. 0x0160: 2c00 4a00 6700 7400 8b00 a400 cb00 f200 ,.J.g.t......... 0x0170: f400 0000 0000 0002 0100 0000 0000 0000 ................ 0x0180: 0d00 0000 0000 0000 0000 0000 0000 0001 ................ 0x0190: 0f . { __argument: { WIRApplicationIdentifierKey: 'com.apple.mobilesafari', WIRConnectionIdentifierKey: 'A55146E7-2DED-482A-8913-10337E7F430F', WIRSenderKey: '200A951F-089C-4E7A-A6B2-31B5D277CA65', WIRPageIdentifierKey: 1 }, __selector: '_rpc_forwardSocketSetup:' } </code></pre> <p>And what I'm sending with JSON plist:</p> <pre><code>16:39:18.669088 IP6 localhost.63836 > localhost.27753: Flags [P.], seq 413:742, ack 1, win 9175, options [nop,nop,TS val 89654016 ecr 89654016], length 329 0x0000: 6000 0000 0169 0640 0000 0000 0000 0000 `....i.@........ 0x0010: 0000 0000 0000 0001 0000 0000 0000 0000 ................ 0x0020: 0000 0000 0000 0001 f95c 6c69 0226 fab5 .........\li.&.. 0x0030: 6fff d8d3 8018 23d7 0171 0000 0101 080a o.....#..q...... 0x0040: 0558 0300 0558 0300 6270 6c69 7374 3030 .X...X..bplist00 0x0050: d201 0203 0c5a 5f5f 6172 6775 6d65 6e74 .....Z__argument 0x0060: 5a5f 5f73 656c 6563 746f 72d4 0405 0607 Z__selector..... 0x0070: 0809 0a0b 5f10 1b57 4952 4170 706c 6963 ...._..WIRApplic 0x0080: 6174 696f 6e49 6465 6e74 6966 6965 724b ationIdentifierK 0x0090: 6579 5f10 1a57 4952 436f 6e6e 6563 7469 ey_..WIRConnecti 0x00a0: 6f6e 4964 656e 7469 6669 6572 4b65 795c onIdentifierKey\ 0x00b0: 5749 5253 656e 6465 724b 6579 5f10 1457 WIRSenderKey_..W 0x00c0: 4952 5061 6765 4964 656e 7469 6669 6572 IRPageIdentifier 0x00d0: 4b65 795f 1016 636f 6d2e 6170 706c 652e Key_..com.apple. 0x00e0: 6d6f 6269 6c65 7361 6661 7269 5f10 2465 mobilesafari_.$E 0x00f0: 3962 6431 6564 312d 6164 3161 2d34 6266 9BD1ED1-AD1A-4BF 0x0100: 302d 6238 3066 2d61 3331 3136 3962 6434 0-B80F-A31169BD4 0x0110: 3431 315f 1024 6630 3538 6663 3761 2d63 411_.$F058FC7A-C 0x0120: 6232 332d 3465 3339 2d61 6535 312d 3734 B23-4E39-AE51-74 0x0130: 6363 3730 6333 6262 3033 1001 5f10 185f CC70C3BB03.._.._ 0x0140: 7270 635f 666f 7277 6172 6453 6f63 6b65 rpc_forwardSocke 0x0150: 7453 6574 7570 3a00 0800 0d00 1800 2300 tSetup:.......#. 0x0160: 2c00 4a00 6700 7400 8b00 a400 cb00 f200 ,.J.g.t......... 0x0170: f400 0000 0000 0002 0100 0000 0000 0000 ................ 0x0180: 0d00 0000 0000 0000 0000 0000 0000 0001 ................ 0x0190: 0f . { __argument: { WIRApplicationIdentifierKey: 'com.apple.mobilesafari', WIRConnectionIdentifierKey: 'E9BD1ED1-AD1A-4BF0-B80F-A31169BD4411', WIRSenderKey: 'F058FC7A-CB23-4E39-AE51-74CC70C3BB03', WIRPageIdentifierKey: 1 }, __selector: '_rpc_forwardSocketSetup:' } </code></pre> <p>Apart from the keys (which, from my experiments, don't seem make any difference – I've tried keys that Safari's used to no avail) the two are byte-for-byte identical and produce identical plists. I can compare the traffic between Safari & Mobile Safari and my code & Mobile Safari side by side, and they only diverge at this point.</p> <p>I don't know what the problem is, but there are a few possibilites as far as I can see:</p> <ul> <li>The packets aren't identical and I've spelt something wrong/screwed something else up</li> <li>The keys aren't ok (perhaps the Sender Key needs to be generated from the Connection ID Key)</li> <li>There's data being passed between the two elsewhere</li> </ul> <p>Just to clear up some avenues that I've investigated:</p> <ul> <li>It's not time sensitive (another project — not mine — can successfully connect but sends all connection packets at once)</li> <li>I've checked to see if there's (tcp) data being passed over another port – there isn't as far as I can tell</li> </ul> <p>What could be going wrong? Why is Mobile Safari refusing my connection?</p> <p>The project is <a href="https://github.com/leftlogic/remote-debug" rel="nofollow noreferrer">on Github</a>. </p>

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