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annotate mod_pubsub_summary/mod_pubsub_summary.lua @ 4537:53ee391ca689

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mod_smacks: Fix traceback due to session being destroyed in send() Sending something can cause the OS to notice that the connection is dead and then the connection can be dead at this point. More likely if opportunistic_writes is enabled.
author Kim Alvefur <zash@zash.se>
date Thu, 01 Apr 2021 11:35:26 +0200
parents ade2064160e3
children 98864dffb231
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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4426
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- No, not trying to parse HTML here. It's an illusion. Just trying to read RSS feeds.
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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2 --
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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3 -- Compose a textual representation of Atom payloads
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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4 module:hook("pubsub-summary/http://www.w3.org/2005/Atom", function (event)
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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5 local payload = event.payload;
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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6 local title = payload:get_child_text("title");
4435
a620bf249e63 mod_pubsub_summary: Explain why it picks content or summary in a comment
Kim Alvefur <zash@zash.se>
parents: 4426
diff changeset
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
Kim Alvefur <zash@zash.se>
parents: 4426
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8 -- the interesting stuff was in the content and the summary was .. meh.
4426
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
Kim Alvefur <zash@zash.se>
parents: 4438
diff changeset
10 local content = content_tag and content_tag:get_text();
86a97e7572b2 mod_pubsub_summary: Fix traceback when <content> not included
Kim Alvefur <zash@zash.se>
parents: 4438
diff changeset
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
Kim Alvefur <zash@zash.se>
parents:
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12 content = content:gsub("\n*<p[^>]*>\n*(.-)\n*</p>\n*", "%1\n\n");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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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
Kim Alvefur <zash@zash.se>
parents: 4507
diff changeset
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
Kim Alvefur <zash@zash.se>
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15 content = content:gsub("<b>(.-)</b>", "*%1*");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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16 content = content:gsub("<strong>(.-)</strong>", "*%1*");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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17 content = content:gsub("<em>(.-)</em>", "*%1*");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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18 content = content:gsub("<i>(.-)</i>", "*%1*");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
parents:
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19 content = content:gsub("<img[^>]*src=[\"'](.-)[\"'][^>]*>", " %1 "); -- TODO alt= would have been nice to grab
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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20 content = content:gsub("<br[^>]*>", "\n");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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21 content = content:gsub("<[^>]+>", "");
4513
ade2064160e3 mod_pubsub_summary: Fix to not strip inline links
Kim Alvefur <zash@zash.se>
parents: 4507
diff changeset
22 content = content:gsub("\1(.-)\2(.-)\3", "%2 <%1>");
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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23 content = content:gsub("^%s*", ""):gsub("%s*$", "");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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24 content = content:gsub("\n\n\n+", "\n\n");
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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25 content = content:gsub("&(%w+);", {
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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26 apos = "'";
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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27 quot = '"';
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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28 lt = "<";
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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29 gt = ">";
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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30 amp = "&";
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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31 nbsp = utf8 and utf8.char(0xa0) or " ";
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Kim Alvefur <zash@zash.se>
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32 });
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Kim Alvefur <zash@zash.se>
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33 end
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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34 local summary;
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09657f758f53 mod_pubsub_summary: Skip adding title if already part of summary
Kim Alvefur <zash@zash.se>
parents: 4436
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35 if title and content and content:sub(1, #title) ~= title then
4438
2bb11055e4bb mod_pubsub_summary: Make titles *bold* to stand out more
Kim Alvefur <zash@zash.se>
parents: 4437
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36 summary = "*" .. title .. "*\n\n" .. content;
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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37 elseif title or content then
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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38 summary = content or title;
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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39 end
4436
07529dba102d mod_pubsub_summary: Include multiple links (e.g. podcast media)
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
40 for link in payload:childtags("link") do
07529dba102d mod_pubsub_summary: Include multiple links (e.g. podcast media)
Kim Alvefur <zash@zash.se>
parents: 4435
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41 if link and link.attr.href and link.attr.href ~= content then
07529dba102d mod_pubsub_summary: Include multiple links (e.g. podcast media)
Kim Alvefur <zash@zash.se>
parents: 4435
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42 summary = (summary and summary .. "\n" or "") .. link.attr.href;
07529dba102d mod_pubsub_summary: Include multiple links (e.g. podcast media)
Kim Alvefur <zash@zash.se>
parents: 4435
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43 if link.attr.rel then summary = summary .. " [" .. link.attr.rel .. "]" end
07529dba102d mod_pubsub_summary: Include multiple links (e.g. podcast media)
Kim Alvefur <zash@zash.se>
parents: 4435
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44 end
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3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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45 end
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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46 return summary;
3fe2c264aac4 mod_pubsub_summary: Mangle HTML payloads in Atom/RSS feeds
Kim Alvefur <zash@zash.se>
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47 end, 1);