annotate mod_pubsub_summary/mod_pubsub_summary.lua @ 4895:2542fd80cd15

mod_turn_external: Fix type of config option (thanks mirux) There was a separate boolean option to enable TLS before, but it was merged with the port number option and it seems the typed API interface got confused. Backport of trunk rev aa7a8aa64d3f
author Kim Alvefur <zash@zash.se>
date Tue, 15 Feb 2022 21:51:52 +0100
parents fcfe691d6322
children cde38b7de04a
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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1 -- No, not trying to parse HTML here. It's an illusion. Just trying to read RSS feeds.
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2 --
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3 -- Compose a textual representation of Atom payloads
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4 module:hook("pubsub-summary/http://www.w3.org/2005/Atom", function (event)
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5 local payload = event.payload;
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6 local title = payload:get_child_text("title");
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a620bf249e63 mod_pubsub_summary: Explain why it picks content or summary in a comment
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7 -- Note: This prefers content over summary, it was made for a news feed where
a620bf249e63 mod_pubsub_summary: Explain why it picks content or summary in a comment
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8 -- the interesting stuff was in the content and the summary was .. meh.
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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9 local content_tag = payload:get_child("content") or payload:get_child("summary");
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86a97e7572b2 mod_pubsub_summary: Fix traceback when <content> not included
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10 local content = content_tag and content_tag:get_text();
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11 if content and content_tag.attr.type == "html" then
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
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12 content = content:gsub("\n*<p[^>]*>\n*(.-)\n*</p>\n*", "%1\n\n");
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13 content = content:gsub("<li>(.-)</li>\n", "* %1\n");
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ade2064160e3 mod_pubsub_summary: Fix to not strip inline links
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14 content = content:gsub("<a[^>]*href=[\"'](.-)[\"'][^>]*>(.-)</a>", "\1%1\2%2\3");
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
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15 content = content:gsub("<b>(.-)</b>", "*%1*");
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16 content = content:gsub("<strong>(.-)</strong>", "*%1*");
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98864dffb231 mod_pubsub_summary: Fix conversion of emphasis _like this_ per XEP-0393
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17 content = content:gsub("<em>(.-)</em>", "_%1_");
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18 content = content:gsub("<i>(.-)</i>", "_%1_");
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19 content = content:gsub("<img[^>]*src=[\"'](.-)[\"'][^>]*>", " %1 "); -- TODO alt= would have been nice to grab
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20 content = content:gsub("<br[^>]*>", "\n");
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21 content = content:gsub("<[^>]+>", "");
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ade2064160e3 mod_pubsub_summary: Fix to not strip inline links
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22 content = content:gsub("\1(.-)\2(.-)\3", "%2 <%1>");
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23 content = content:gsub("^%s*", ""):gsub("%s*$", "");
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24 content = content:gsub("\n\n\n+", "\n\n");
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25 content = content:gsub("&(%w+);", {
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26 apos = "'";
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27 quot = '"';
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28 lt = "<";
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29 gt = ">";
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30 amp = "&";
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fcfe691d6322 mod_pubsub_summary: Use pre-escaped UTF-8 sequence for compat
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31 nbsp = "\194\160"; -- U+00A0
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32 });
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33 end
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34 local summary;
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09657f758f53 mod_pubsub_summary: Skip adding title if already part of summary
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35 if title and content and content:sub(1, #title) ~= title then
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2bb11055e4bb mod_pubsub_summary: Make titles *bold* to stand out more
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36 summary = "*" .. title .. "*\n\n" .. content;
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37 elseif title or content then
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38 summary = content or title;
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39 end
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07529dba102d mod_pubsub_summary: Include multiple links (e.g. podcast media)
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40 for link in payload:childtags("link") do
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41 if link and link.attr.href and link.attr.href ~= content then
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42 summary = (summary and summary .. "\n" or "") .. link.attr.href;
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43 if link.attr.rel then summary = summary .. " [" .. link.attr.rel .. "]" end
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44 end
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45 end
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46 return summary;
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47 end, 1);