XSF logo jdev - 2019-10-30


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  3. tom how much memory would be needed to implement basic XMPP texting functionality as well as the battery saving (low activity mode) XEP?
  4. tom Is there an existing library I could use out there in C that could run with 16K of ram?
  5. tom that I could offload cryptography to a dedicated IC
  6. tom over an SPI bus or something
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  9. tom I'm not set on 16K and can go up if needed, I just had a particular low power TI microcontroller in mind
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  12. guus.der.kinderen tom: the only library that I know (which does not mean anything, there might be millions more) of that's used on embedded devices is Gloox. I have no idea about its resource consumption. See https://camaya.net/gloox/
  13. tom c++ not see but thanks
  14. tom thank you guus.der.kinderen this helps a lot
  15. guus.der.kinderen It's all I have to offer, sorry 😉
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  30. jonas’ 16k sounds really constraining
  31. jonas’ I heard that there is a embedded-geared XMPP library which will zero-copy-ish parse the XML stream, but I have forgotten the name
  32. jonas’ that was probably five years ago
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  54. MattJ I used to use libstrophe when I did embedded (it's C)
  55. MattJ It's been unmaintained for a long while, which doesn't mean it won't work
  56. MattJ But it's also very low level (gloox is high level, C++, and likely uses a bunch more resources)
  57. MattJ I actively used and contributed to both, and then wrote my own XMPP stack in Lua and never looked back ;)
  58. jonas’ isn’t libstrophe used by profanity?
  59. jonas’ and there are commits in there
  60. jonas’ are you confusing libstrophe and libcouplet?
  61. MattJ Is it? That's nice
  62. jonas’ https://github.com/strophe/libstrophe
  63. MattJ That's great news :)
  64. MattJ docs/ was last touched 12 years ago :)
  65. jonas’ https://github.com/profanity-im/profanity/blob/master/configure.ac#L127
  66. jonas’ https://github.com/profanity-im/libmesode
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  71. zinid I just read about advancing vcard4 to draft
  72. zinid does anyone have an idea why we need vcard4?
  73. Link Mauve zinid, permissions is the main argument AFAIK.
  74. Link Mauve Being based on PubSub, etc.
  75. zinid ah, it's PEP based?
  76. zinid which can be done with vcard-temp
  77. zinid but we like to break everything, yeah
  78. Link Mauve Also it’s based on a standard for vCard serialisation to XML.
  79. Link Mauve So might be easier for interoperability with software outside of XMPP.
  80. zinid 🙂
  81. zinid no comments 😀
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  83. zinid breaking backward compatibility with such moot arguments... *shrugs*
  84. Link Mauve There is no backwards compatibility once you change the protocol anyway.
  85. Link Mauve Not with the previous protocol I mean.
  86. zinid > The Last Call ends on 2019-02-19 lol 😉
  87. zinid Link Mauve, a server still has to maintain both versions
  88. Link Mauve Or convert on the fly.
  89. Link Mauve Same for bookmarks2, or 0084/0153 avatar.
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  127. lovetox can a jid be case sensitive?
  128. lovetox like A@domain.com != a@domain.com?
  129. Zash No
  130. lovetox ok thanks, i assumed, but i didnt found the part in the rfc
  131. Zash It's in an RFC of its own
  132. Zash Or three
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  135. lovetox ah the precis profile does the case mapping to lower case
  136. Zash In theory it would be possible to only do the normalization for comparisons, but leave the casing as-is on the wire.
  137. Zash Probably not something we want to do tho
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