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annotate mod_pubsub_feeds/feeds.lib.lua @ 5420:aa068449b0b6

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mod_http_oauth2: Bail out of implicit flow on invalid or missing redirect Probably hasn't been tested, and maybe never will since it's disabled and more or less deprecated in OAuth 2.1
author Kim Alvefur <zash@zash.se>
date Sat, 06 May 2023 12:23:22 +0200
parents b328ca621ba6
children
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b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
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1 local st = require "util.stanza";
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2 -- RSS->Atom translator
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3 -- http://code.matthewwild.co.uk/lua-feeds/
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4
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5 -- Helpers to translate item child elements
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6 local rss2atom = {};
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7 function rss2atom.title(atom_entry, tag)
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8 atom_entry:tag("title"):text(tag:get_text()):up();
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9 end
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10
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11 function rss2atom.link(atom_entry, tag)
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12 atom_entry:tag("link", { href = tag:get_text() }):up();
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13 end
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14
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15 function rss2atom.enclosure(atom_entry, tag)
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16 atom_entry:tag("link", { rel = "enclosure", href = tag.attr.url, type = tag.attr.type, length = tag.attr.length }):up();
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17 end
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19 function rss2atom.author(atom_entry, tag)
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20 atom_entry:tag("author")
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21 :tag("email"):text(tag:get_text()):up()
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22 :up();
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23 end
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25 function rss2atom.guid(atom_entry, tag)
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26 atom_entry:tag("id"):text(tag:get_text()):up();
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27 end
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29 function rss2atom.category(atom_entry, tag)
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30 atom_entry:tag("category", { term = tag:get_text(), scheme = tag.attr.domain }):up();
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31 end
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33 function rss2atom.description(atom_entry, tag)
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34 atom_entry:tag("summary"):text(tag:get_text()):up();
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35 end
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37 local months = {
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38 jan = "01", feb = "02", mar = "03", apr = "04", may = "05", jun = "06";
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39 jul = "07", aug = "08", sep = "09", oct = "10", nov = "11", dec = "12";
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40 };
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42 function rss2atom.pubDate(atom_entry, tag)
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43 local pubdate = tag:get_text():gsub("^%a+,", ""):gsub("^%s*", "");
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44 local date, month, year, hour, minute, second, zone =
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45 pubdate:match("^(%d%d?) (%a+) (%d+) (%d+):(%d+):?(%d*) ?(.*)$");
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46 if not date then return; end
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47 if #date == 1 then
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48 date = "0"..date;
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49 end
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50 month = months[month:sub(1,3):lower()];
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51 if #year == 2 then -- GAH!
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52 if tonumber(year) > 80 then
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53 year = "19"..year;
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54 else
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55 year = "20"..year;
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56 end
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57 end
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58 if zone == "UT" or zone == "GMT" then zone = "Z"; end
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59 if #second == 0 then
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60 second = "00";
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61 end
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62 local date_string = string.format("%s-%s-%sT%s:%s:%s%s", year, month, date, hour, minute, second, zone);
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63 atom_entry:tag("published"):text(date_string):up();
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64 end
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65
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66 -- Translate a single item to atom
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67 local function translate_rss(rss_feed)
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68 local feed = st.stanza("feed", { xmlns = "http://www.w3.org/2005/Atom" });
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69 local channel = rss_feed:get_child("channel");
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70 -- TODO channel properties
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71 for item in channel:childtags("item") do
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72 feed:tag("entry");
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73 for tag in item:childtags() do
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74 local translator = rss2atom[tag.name];
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75 if translator then
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76 translator(feed, tag);
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77 end
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78 end
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79 -- Preserve Atom-namespaced items
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80 for atomtag in item:childtags(nil, "http://www.w3.org/2005/Atom") do
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81 feed:add_child(st.clone(atomtag));
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82 end
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83 feed:reset();
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84 end
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85 return feed;
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86 end
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87
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88 return { translate_rss = translate_rss }