Duplicate send entries when opening URI from command line #17025

1. 
   Sjors commented at 4:12 pm on October 2, 2019: member

   Opening a URI like bitcoin:bcrt1qu7nl0nxfqwhrrf6v0t60asvq3dympgqdhg03rn?amount=0.00010000 from Chrome on macOS still works as it should.

   But opening it through the console, e.g. /Applications/Bitcoin-Qt.app/Contents/MacOS/Bitcoin-Qt bitcoin:bcrt1qu7nl0nxfqwhrrf6v0t60asvq3dympgqdhg03rn?amount=0.00010000 leads to a duplicate entry on the send screen.

   So on macOS it’s annoying when debugging the send screen, but otherwise harmless. But we should test the URI handler on different platforms.

   Introduced by #16578.

2. Sjors added the label Bug on Oct 2, 2019
3. 
   laanwj commented at 4:40 pm on October 2, 2019: member

   I don’t understand how not passing the arguments to qt can result in a duplicate entry. Are you sure it’s caused by that? Any idea why?
4. 
   Sjors commented at 5:13 pm on October 2, 2019: member

   I tried before and after that commit, so pretty sure it’s the one that introduced it. I don’t understand why either. It sounds like the URI gets passed in twice. cc @achow101
5. 
   laanwj commented at 5:20 pm on October 2, 2019: member

   What are the values of argc and argv[...]?
6. 
   jonasschnelli commented at 5:28 pm on October 2, 2019: contributor

   I can’t reproduce that. ./src/qt/bitcoin-qt --regtest "bitcoin:bcrt1qu7nl0nxfqwhrrf6v0t60asvq3dympgqdhg03rn?amount=0.00010000" results in a single entry in the send screen (macOS 10.14.6).
7. MarcoFalke added this to the milestone 0.19.0 on Oct 2, 2019
8. 
   luke-jr commented at 5:36 pm on October 2, 2019: member

   Did you clear the one you opened from the browser, before trying to open it at the command line?

   IIRC, opening multiple links in succession adds them to the same send as new recipients…

9. 
   promag commented at 5:39 pm on October 2, 2019: member

   I can reproduce with @jonasschnelli command.
10. 
    promag commented at 5:43 pm on October 2, 2019: member

    Adding a breakpoint at parseBitcoinURI I get two interruptions:

    0  * frame [#0](/bitcoin-bitcoin/0/): 0x0000000100029e83 bitcoin-qt`GUIUtil::parseBitcoinURI(uri=QString @ 0x00007ffeefbff4b8, out=0x00007ffeefbff4c0) at guiutil.cpp:173:10 [opt]
    1    frame [#1](/bitcoin-bitcoin/1/): 0x00000001000911c2 bitcoin-qt`PaymentServer::ipcParseCommandLine(node=0x0000000102cd4b90, argc=<unavailable>, argv=0x00007ffeefbff7f0) at paymentserver.cpp:113:17 [opt]
    2    frame [#2](/bitcoin-bitcoin/2/): 0x000000010000d61d bitcoin-qt`GuiMain(argc=6, argv=0x00007ffeefbff7f0) at bitcoin.cpp:529:5 [opt]
    

    and

    0  * frame [#0](/bitcoin-bitcoin/0/): 0x0000000100029e83 bitcoin-qt`GUIUtil::parseBitcoinURI(uri=QString @ 0x00007ffeefbfd7d8, out=0x00007ffeefbfd7e0) at guiutil.cpp:173:10 [opt]
    1    frame [#1](/bitcoin-bitcoin/1/): 0x0000000100092355 bitcoin-qt`PaymentServer::handleURIOrFile(this=0x0000000102e41920, s=0x0000000102e55090) at paymentserver.cpp:325:17 [opt]
    2    frame [#2](/bitcoin-bitcoin/2/): 0x0000000100092e5c bitcoin-qt`PaymentServer::uiReady(this=0x0000000102e41920) at paymentserver.cpp:274:9 [opt]
    

    Tested with f4a0d27e85.

11. 
    achow101 commented at 6:04 pm on October 2, 2019: member

    I don’t have a mac so I can’t debug this. @Sjors @promag Before and after #16578, what do you see for argc and argv after BitcoinApplication has been constructed?
12. fanquake closed this on Oct 4, 2019

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Contributors
Sjors laanwj jonasschnelli luke-jr promag achow101

Labels
Bug

Milestone
0.19.0