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util/xml.lua @ 11503:7adda14945ad
mod_http_file_share: Include expiry time of the upload itself in token
Lets an external upload service know this so it can do expiry itself.
Could possibly have been calculated based on the token expiry or
issuance time, explicit > implicit.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 05 Apr 2021 17:21:18 +0200 |
parent | 11127:1d9cd1abc660 |
child | 12121:2162e86029b6 |
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local st = require "util.stanza"; local lxp = require "lxp"; local t_insert = table.insert; local t_remove = table.remove; local _ENV = nil; -- luacheck: std none local parse_xml = (function() local ns_prefixes = { ["http://www.w3.org/XML/1998/namespace"] = "xml"; }; local ns_separator = "\1"; local ns_pattern = "^([^"..ns_separator.."]*)"..ns_separator.."?(.*)$"; return function(xml) --luacheck: ignore 212/self local handler = {}; local stanza = st.stanza("root"); local namespaces = {}; local prefixes = {}; function handler:StartNamespaceDecl(prefix, url) if prefix ~= nil then t_insert(namespaces, url); t_insert(prefixes, prefix); end end function handler:EndNamespaceDecl(prefix) if prefix ~= nil then -- we depend on each StartNamespaceDecl having a paired EndNamespaceDecl t_remove(namespaces); t_remove(prefixes); end end function handler:StartElement(tagname, attr) local curr_ns,name = tagname:match(ns_pattern); if name == "" then curr_ns, name = "", curr_ns; end if curr_ns ~= "" then attr.xmlns = curr_ns; end for i=1,#attr do local k = attr[i]; attr[i] = nil; local ns, nm = k:match(ns_pattern); if nm ~= "" then ns = ns_prefixes[ns]; if ns then attr[ns..":"..nm] = attr[k]; attr[k] = nil; end end end local n = {} for i=1,#namespaces do n[prefixes[i]] = namespaces[i]; end stanza:tag(name, attr, n); end function handler:CharacterData(data) stanza:text(data); end function handler:EndElement() stanza:up(); end local parser = lxp.new(handler, "\1"); local ok, err, line, col = parser:parse(xml); if ok then ok, err, line, col = parser:parse(); end --parser:close(); if ok then return stanza.tags[1]; else return ok, ("%s (line %d, col %d))"):format(err, line, col); end end; end)(); return { parse = parse_xml; };