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Angus Robertson

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Everything posted by Angus Robertson

  1. Angus Robertson

    Detect Windows shutdown?

    Angus Robertson replied to Ian Branch's topic in General Help

    Power broadcasts give warnings when the system is about to close down, while designed for battery powered kit, they do work on desktops, my PCs have USB connection to the APC UPS so can close down early. Can not say specifically under what circumstances these messages appear, but belt and braces when saving data... PBT_APMBATTERYLOW: mess := 'Battery power is low' ; PBT_APMQUERYSUSPEND: mess := 'Request for permission to suspend' ; PBT_APMSUSPEND: mess := 'System is suspending operation' ; Angus
  2. Angus Robertson

    Detect Windows shutdown?

    Angus Robertson replied to Ian Branch's topic in General Help

    You should also listen for WM_POWERBROADCAST, but this has to be set-up to work, WM_ENDSESSION and WM_QUIT, lots of ways of closing down. Angus
  3. Angus Robertson
    Thanks, will be fixed today. Angus
  4. Angus Robertson
    You should be repeating RestRequest and not using DoRequestAsync so the request is properly initialised, missed that, other problems may occur attempting to make this a class. Angus
  5. Angus Robertson
    Many thanks, also fixed EVP_DigestVarifyInit. That may get be closer to finding an ECDSA signing bug I've been looking for on and off for a couple of years, its shown up another error in code that was bypassed previously. Are you using the signing functions and finding problems, is that why you are finding all my API conversion errors? Angus
  6. Angus Robertson
    You should be using the onHttpRestProg event with DebugLeve=DebugBody so you can actually see any error messages and what is really happening. But please don't post long logs here, no more than a few pertinent lines. Angus
  7. Angus Robertson
    As I said, you are recursively starting a new HTTP request from the within an event called by that request, you need to start the next request outside the event, either from a timer as I suggested, or by sending a message to a function that starts the next request. Sleep stops messages being processed so defeats the concept of event driven programming, it should only generally only be used in threads that don't do anything else. Angus
  8. Angus Robertson
    Not looked closely at your code, only got as far as sleep in an event handler which is very bad design. You are also recursively starting a new request from the event, which calls the event again... To use async functionality properly, you should use a timer and triggers. ICS provides such functions in OverbyteIcsUtils, ie IcsGetTrgSecs, IcsGetTrgMins, IcsTestTrgTick which are used in OverbyteIcsSslMultiWebServ1.pas as an example. You set a trigger in the event to how every many seconds you want to wait, then test it in a timer triggering once a second or slower, then start the next request. Angus
  9. Angus Robertson
    Also use TSslHttpRest instead of TSslHttpCli since this avoids you needing to use an SslContext in your application, look at the OverbyteIcsHttpRest sample. Angus
  10. Angus Robertson

    IdThread and THttpCli

    Angus Robertson replied to APAPE's topic in ICS - Internet Component Suite

    From that extra information, I assume the first POST attempt succeeded, you then had a time out due to a bad connection and it died., This goes back to what I said yesterday, Windows keeps trying to open a TCP connection and you can not stop it early with a timeout, only by freeing the socket and starting again with a new socket. This is nothing to do with threads, just standard TCP connections. And why we recommend using a array of several hundred dynamically created THttpCli components all using async methods running in parallel sharing the same events for testing lots of remote sites. No threads necessary. Angus
  11. Angus Robertson

    IdThread and THttpCli

    Angus Robertson replied to APAPE's topic in ICS - Internet Component Suite

    Sorry, no idea. When used correctly, THttpCli just works. You ned to add some logging to see what you are not sending for what responses you are receiving. Angus
  12. Angus Robertson

    IdThread and THttpCli

    Angus Robertson replied to APAPE's topic in ICS - Internet Component Suite

    TIdThread is not an ICS component, probably Indy, which may mean you have mixed two libraries. May or may not be relevant to your problem. The only benefit of using threads with ICS to download multiple URLs is where the host is unavailable and Windows waits up to 30 seconds attempting to connect, blocking other actions. Apart from that, ICS will do several hundreds downloads in parallel. The most important issue if you really need to use threads is to make sure the ICS message pump is called in a solid loop if using async methods. Angus
  13. Angus Robertson

    QUIC and HTTP/3

    Angus Robertson replied to pcplayer99's topic in Network, Cloud and Web

    And Microsoft says Windows will ship with MsQuic in the kernel, https://techcommunity.microsoft.com/t5/networking-blog/msquic-is-open-source/ba-p/1345441 Angus
  14. Angus Robertson

    QUIC and HTTP/3

    Angus Robertson replied to pcplayer99's topic in Network, Cloud and Web

    Clouldfare supports QUIC/HTTP/3 now, so it's not just Google and has published speed comparisons. https://blog.cloudflare.com/http-3-vs-http-2/ We don;t expect any problem updating ICS to support OpenSSL 3.0, but won't do it until the API is stable with the first beta release in a month or two. OpenSSL plans QUIC/HTTP/3 for the release after 3.0, six to 12 months away. Hard to know how hard it will be to implement in ICS, but we'll certainly have a go. Supporting LibreSSL in ICS is possible, the API interface library is designed to support different OpenSSL versions dynamically, the main issue is LibreSSL has 'improved' some of the OpenSSL APIs, many macros are now function calls instead (good thing), So quite a lot of effort required to support LibreSSL with no obvious improvements to end user applications,
  15. Angus Robertson

    QUIC and HTTP/3

    Angus Robertson replied to pcplayer99's topic in Network, Cloud and Web

    OpenSSL plans to add QUIC but not until stardardisation is closer, Google has been pushing this for 10 years or so and no standard yet. https://www.openssl.org/blog/blog/2020/02/17/QUIC-and-OpenSSL/ Angus
  16. Angus Robertson

    Links to OpenSSL 1.0.2u Windows binaries are broken

    Angus Robertson replied to Silmor Senedlen's topic in ICS - Internet Component Suite

    Sorry about that, must have forgotten to upload the 1.0.2u files to the wiki server, done now. However both 1.0.2t files come up as downloadable, not tried doing so. Angus
  17. Angus Robertson

    Delphi 10.3 Rio on Windows Server 2008 R2

    Angus Robertson replied to Tallys's topic in Delphi IDE and APIs

    Windows Server 2008 R2 (aka Windows 7) support ceased earlier this year. Windows Servers usually install very basic display drivers which is probably your problem. Angus
  18. Angus Robertson
    Those old files have gone from my local SVN and the zip list, easy to find errors when building project groups, but not things never in the group. But not in/out of the public SVN yet, lot of interconnected units still being tested. Angus
  19. Angus Robertson

    Memory leak in OverbyteIcsWSocket.pas

    Angus Robertson replied to Ralf Junker's topic in ICS - Internet Component Suite

    Thanks, I did see an exception recently rebuilding stacks of root certificates to check chains, the quick solution was to avoid rebuilding stacks (which was also more efficient), but this is probably the root cause, will fix it. Angus
  20. Angus Robertson
    Thanks, will fix. Angus
  21. Angus Robertson
    That is an obsolete sample never updated for modern compilers and not in the project group, but the files are still there for some reason, but not for much longer. The current sample is OverbyteIcsSslWebServ,dpr. Angus
  22. Angus Robertson
    Technically it's wrong, but the actual callback does not attempt to return anything, it's really just for logging. Angus
  23. Angus Robertson
    Thanks, will fix but that function is never used by ICS. Angus
  24. Angus Robertson
    Thanks, that was added recently to SVN and is not yet used due to the warning 'not working yet ' will fix it. Angus
  25. Angus Robertson
    Which specific FTP command causes the floating point error? Are you using a version of ICS from the last year? There have been issues in the distant past calculating the speed of downloads when they take zero seconds, but that is the only calculation that takes place. Angus
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