https support
Hi, we are currently using Xerces-C++ on Linux, Windows and MacOS for parsing XML inputs and validating it against schemas. The schemas (like https://sumo.dlr.de/xsd/routes_file.xsd) are on a public web server which enforces https and I have some questions about Xerces-C++ here. I understand that the https support depends on the net accessor used but it is not clear to me which accessor really supports it. Libcurl probably does (if built with ssl enabled), so we are fine under Linux because it is generally available? Winsock does not support https? Can I find out at runtime whether I am using a Xerces-C++ with https support (other than trial and error) to give at least a meaningful error message? I saw that there are libcurl implementations for Windows as well: https://stackoverflow.com/questions/53861300/how-do-you-properly-install-libcurl-for-use-in-visual-studio-2017 but the docs say libcurl does not work with Windows. Did nobody try yet or are there any major roadblocks? Thanks in advance for your answers. Best regards, Michael signature.asc Description: OpenPGP digital signature
Re: https support
On 17/08/2020 10:22, Michael Behrisch wrote: Hi, we are currently using Xerces-C++ on Linux, Windows and MacOS for parsing XML inputs and validating it against schemas. The schemas (like https://sumo.dlr.de/xsd/routes_file.xsd) are on a public web server which enforces https and I have some questions about Xerces-C++ here. I understand that the https support depends on the net accessor used but it is not clear to me which accessor really supports it. Libcurl probably does (if built with ssl enabled), so we are fine under Linux because it is generally available? Winsock does not support https? Can I find out at runtime whether I am using a Xerces-C++ with https support (other than trial and error) to give at least a meaningful error message? I saw that there are libcurl implementations for Windows as well: https://stackoverflow.com/questions/53861300/how-do-you-properly-install-libcurl-for-use-in-visual-studio-2017 but the docs say libcurl does not work with Windows. Did nobody try yet or are there any major roadblocks? Hi Michael, I think that CURL should work just fine on Windows. The socket/winsock options are plain sockets with no SSL support. Looking at how the netaccessor selection is done, it's completely compile-time and the setting is in config.h which isn't installed, so it's not possible to determine the netaccessor in use at runtime or compile time as an end-user of Xerces-C++. If the netaccessor symbols get exported you could possibly see if you can access the appropriate symbols, but it would be both hacky and fragile to do so. I did suggest a couple of months back that in the current day and age of HTTPS everywhere, we might want to consider removing the built-in socket support and only provide netaccessors which support HTTPS. This would guarantee working HTTPS support (the alternative being no network support at all). See https://issues.apache.org/jira/browse/XERCESC-2207 Kind regards, Roger - To unsubscribe, e-mail: c-dev-unsubscr...@xerces.apache.org For additional commands, e-mail: c-dev-h...@xerces.apache.org
Re: https support
Michael Behrisch writes: > I saw that there are libcurl implementations for Windows as well: > https://stackoverflow.com/questions/53861300/how-do-you-properly-install-libcurl-for-use-in-visual-studio-2017 > but the docs say libcurl does not work with Windows. Did nobody try yet > or are there any major roadblocks? libcurl works fine on Windows though for HTTPS support you will also need to build OpenSSL. For example, we build Xerces-C++ with libcurl/OpenSSL across all platforms/compilers: https://cppget.org/?builds=libxerces-c - To unsubscribe, e-mail: c-dev-unsubscr...@xerces.apache.org For additional commands, e-mail: c-dev-h...@xerces.apache.org
Re: https support
Am 2020-08-17 15:54, schrieb Boris Kolpackov: libcurl works fine on Windows though for HTTPS support you will also need to build OpenSSL. For example, we build Xerces-C++ with libcurl/OpenSSL across all platforms/compilers: https://cppget.org/?builds=libxerces-c Thanks, it seems I just learned about another package manager for Windows. vcpkg and conan build xerces-c without curl as far as I could tell. Best regards, Michael - To unsubscribe, e-mail: c-dev-unsubscr...@xerces.apache.org For additional commands, e-mail: c-dev-h...@xerces.apache.org
Re: https support
Am 2020-08-17 14:04, schrieb Roger Leigh: I think that CURL should work just fine on Windows. The socket/winsock options are plain sockets with no SSL support. OK, then curl seems to be the way forward. I did suggest a couple of months back that in the current day and age of HTTPS everywhere, we might want to consider removing the built-in socket support and only provide netaccessors which support HTTPS. This would guarantee working HTTPS support (the alternative being no network support at all). See https://issues.apache.org/jira/browse/XERCESC-2207 I support that idea. Best regards, Michael - To unsubscribe, e-mail: c-dev-unsubscr...@xerces.apache.org For additional commands, e-mail: c-dev-h...@xerces.apache.org