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Redirect: Allow redirects to Special pages
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982cd2b848
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@ -32,40 +32,49 @@ public class Xow_page_mgr implements Gfo_invk {
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}
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private void Load_by_ns(Xoae_page rv, Xoa_url url, Xoa_ttl ttl, boolean called_from_msg) {
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rv.Url_(url); // NOTE: must update page.Url(); should combine with Xoae_page.New()
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Xow_ns ns = ttl.Ns();
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switch (ns.Id()) {
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case Xow_ns_.Tid__special: // Special pages are built (not loaded from db)
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wiki.Special_mgr().Special__gen(wiki.App(), wiki, rv, url, ttl);
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Xopg_redirect_itm redirect_itm = rv.Redirect_trail().Itms__get_at_nth_or_null();
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if (redirect_itm != null) {
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rv.Redirect_trail().Clear(); // clear needed; EX: Special:Random -> [[Redirected_page]] -> {must clear here} -> [[Page]]
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Load_by_ns(rv, redirect_itm.Url(), redirect_itm.Ttl(), called_from_msg);
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}
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return;
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case Xow_ns_.Tid__mediawiki: // MediaWiki msgs can either be loaded from memory, or from database
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if ( !called_from_msg // if called_from_msg, fall through to actual data retrieval below, else infinite loop; DATE:2014-05-09
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&& Xow_page_tid.Identify_by_ttl(ttl.Page_db()) == Xow_page_tid.Tid_wikitext // skip ".js" and ".css" pages in MediaWiki; DATE:2014-06-13
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) {
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Xol_lang_itm lang = wiki.Lang();
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byte[] msg_key = ttl.Page_db();
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Bry_bfr tmp_bfr = wiki.Utl__bfr_mkr().Get_b512();
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msg_key = lang.Case_mgr().Case_build_1st_lower(tmp_bfr, msg_key, 0, msg_key.length);
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byte[] msg_val = Xol_msg_mgr_.Get_msg_itm(tmp_bfr, wiki, wiki.Lang(), msg_key).Val(); // NOTE: do not change to Get_msg_val; Get_msg_val, also replaces $1 with values, and $1 needs to be preserved for callers;
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rv.Db().Text().Text_bry_(msg_val);
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tmp_bfr.Mkr_rls();
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// WORKAROUND: loop twice in order to allow redirects from regular page to special
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for (int i = 0; i < 2; i++) {
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Xow_ns ns = ttl.Ns();
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switch (ns.Id()) {
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case Xow_ns_.Tid__special: // Special pages are built (not loaded from db)
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wiki.Special_mgr().Special__gen(wiki.App(), wiki, rv, url, ttl);
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Xopg_redirect_itm redirect_itm = rv.Redirect_trail().Itms__get_at_nth_or_null();
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if (redirect_itm != null) {
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rv.Redirect_trail().Clear(); // clear needed; EX: Special:Random -> [[Redirected_page]] -> {must clear here} -> [[Page]]
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Load_by_ns(rv, redirect_itm.Url(), redirect_itm.Ttl(), called_from_msg);
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}
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return;
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}
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break;
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case Xow_ns_.Tid__mediawiki: // MediaWiki msgs can either be loaded from memory, or from database
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if ( !called_from_msg // if called_from_msg, fall through to actual data retrieval below, else infinite loop; DATE:2014-05-09
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&& Xow_page_tid.Identify_by_ttl(ttl.Page_db()) == Xow_page_tid.Tid_wikitext // skip ".js" and ".css" pages in MediaWiki; DATE:2014-06-13
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) {
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Xol_lang_itm lang = wiki.Lang();
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byte[] msg_key = ttl.Page_db();
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Bry_bfr tmp_bfr = wiki.Utl__bfr_mkr().Get_b512();
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msg_key = lang.Case_mgr().Case_build_1st_lower(tmp_bfr, msg_key, 0, msg_key.length);
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byte[] msg_val = Xol_msg_mgr_.Get_msg_itm(tmp_bfr, wiki, wiki.Lang(), msg_key).Val(); // NOTE: do not change to Get_msg_val; Get_msg_val, also replaces $1 with values, and $1 needs to be preserved for callers;
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rv.Db().Text().Text_bry_(msg_val);
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tmp_bfr.Mkr_rls();
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return;
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}
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break;
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}
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Xoa_ttl redirect_ttl = Load_from_db(rv, ns, ttl, url.Qargs_mgr().Match(Xoa_url_.Qarg__redirect, Xoa_url_.Qarg__redirect__no));
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if (redirect_ttl != null && redirect_ttl.Ns().Id_is_special()) {
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ttl = redirect_ttl;
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rv.Redirect_trail().Clear();
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rv.Db().Page().Exists_y_();
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}
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}
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Load_from_db(rv, ns, ttl, url.Qargs_mgr().Match(Xoa_url_.Qarg__redirect, Xoa_url_.Qarg__redirect__no));
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}
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public void Load_from_db(Xoae_page rv, Xow_ns ns, Xoa_ttl ttl, boolean redirect_force) {
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public Xoa_ttl Load_from_db(Xoae_page rv, Xow_ns ns, Xoa_ttl ttl, boolean redirect_force) {
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int redirects = 0;
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Xowd_page_itm page_row = Xowd_page_itm.new_tmp();
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while (true) { // loop until (a) no more redirects or (b) page not found
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// load from page table
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boolean exists = wiki.Db_mgr().Load_mgr().Load_by_ttl(page_row, ns, ttl.Page_db());
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if (!exists) {rv.Db().Page().Exists_n_(); return;}
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if (!exists) {rv.Db().Page().Exists_n_(); return ttl;}
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if (wiki.App().Mode().Tid_is_gui()) // NOTE: must check if gui, else will write during mass build; DATE:2014-05-03
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wiki.Appe().Usr_dlg().Prog_many("", "", "loading page for ~{0}", ttl.Raw());
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@ -76,20 +85,20 @@ public class Xow_page_mgr implements Gfo_invk {
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wiki.Db_mgr().Load_mgr().Load_page(page_row, ns);
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byte[] wtxt = page_row.Text();
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rv.Db().Text().Text_bry_(wtxt);
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if (redirect_force) return; // redirect_force passed; return page now, even if page is a redirect elsewhere; NOTE: only applies to WTXT, not HTML
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if (redirect_force) return ttl; // redirect_force passed; return page now, even if page is a redirect elsewhere; NOTE: only applies to WTXT, not HTML
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// handle redirects for html_dbs
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if ( page_row.Redirect_id() > 0 // redirect exists
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&& Bry_.Len_eq_0(wtxt)) { // wikitext is not found
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Redirect_to_html_page(rv, wiki, page_row);
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return;
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return ttl;
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}
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// handle redirects
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Xoa_ttl redirect_ttl = wiki.Redirect_mgr().Extract_redirect(wtxt);
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if ( redirect_ttl == null // not a redirect
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|| redirects++ > 4) // too many redirects; something went wrong
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return;
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return redirect_ttl;
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// redirect; do some bookkeeping and reset ns / ttl
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// NOTE: this adds the target ttl to redirect_mgr (#REDIRECT [[A]]); note that special redirects will add source ttl; DATE:2016-07-31
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