(* COCANWIKI - a wiki written in Objective CAML.
* Written by Richard W.M. Jones <rich@merjis.com>.
* Copyright (C) 2004 Merjis Ltd.
- * $Id: page.ml,v 1.45 2006/03/28 16:24:07 rich Exp $
+ * $Id: page.ml,v 1.59 2006/12/06 09:46:57 rich Exp $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
open Cocanwiki_date
open Cocanwiki_server_settings
open Cocanwiki_links
+open Cocanwiki_extensions
+open Cocanwiki_strings
-type fp_status = FPOK of int32 * string * string * Calendar.t * bool
- | FPInternalRedirect of string
- | FPExternalRedirect of string
- | FPNotFound
+type fp_status =
+ | FPOK of int32 * string * string * string option * Calendar.t * bool
+ * bool option
+ | FPInternalRedirect of string
+ | FPExternalRedirect of string
+ | FPNotFound
(* Referer strings which help us decide if the user came from
* a search engine and highlight terms in the page appropriately.
*)
let template_page_header =
- get_template ~page dbh hostid "page_header.html" in
- let template_page = get_template ~page dbh hostid "page.html" in
+ get_template ~page r dbh hostid "page_header.html" in
+ let template_page = get_template ~page r dbh hostid "page.html" in
(* This is the simpler template for 404 pages. *)
- let template_404 = get_template dbh hostid "page_404.html" in
+ let template_404_header = get_template r dbh hostid "page_404_header.html" in
+ let template_404 = get_template r dbh hostid "page_404.html" in
(* Host-specific fields. *)
- let rows = PGSQL(dbh)
- "select css is not null, feedback_email is not null, mailing_list, navigation
- from hosts where id = $hostid" in
- let has_host_css, has_feedback_email, mailing_list, navigation =
+ let rows =
+ PGSQL(dbh)
+ "select feedback_email is not null, mailing_list, navigation
+ from hosts where id = $hostid" in
+ let has_feedback_email, mailing_list, navigation =
match rows with
- | [Some has_host_css, Some has_feedback_email,
- mailing_list, navigation] ->
- has_host_css, has_feedback_email, mailing_list, navigation
+ | [Some has_feedback_email, mailing_list, navigation] ->
+ has_feedback_email, mailing_list, navigation
| _ -> assert false in
(* User permissions. *)
) in
Some (List.assoc name !extensions)
with
- Not_found | ExtList.List.Empty_list -> None
+ Not_found | ExtList.List.Empty_list | Failure "hd" -> None
in
(* This code generates ordinary pages. *)
- let make_page title description pageid last_modified_date has_page_css
+ let make_page title description keywords
+ pageid last_modified_date has_page_css noodp
version page page' extension =
let t = template_page in
let th = template_page_header in
- t#set "title" title;
+ (*t#set "title" title; - nothing uses ::title:: on page.html - removed *)
+
+ (* Page title, h1 and superdirs (if any). *)
th#set "title" title;
+
+ let superdirs, h1 =
+ match String.nsplit title "/" with
+ | [] -> [], ""
+ | [h1] -> [], h1
+ | xs ->
+ let xs = List.rev xs in
+ let h1 = List.hd xs in
+ let superdirs = List.rev (List.tl xs) in
+
+ (* Check the superdirs are reasonable, then convert them
+ * into paths or redlinks.
+ * If any of this fails, then there are no superdirs.
+ *)
+ try
+ let pathsofar = ref "" in
+ let superdirs =
+ List.mapi (
+ fun i name ->
+ (* Path will be something like "Dir1/Dir2". We want
+ * a URL like "dir1/dir2".
+ *)
+ let path =
+ if i = 0 then name else !pathsofar ^ "/" ^ name in
+ (* Path so far reasonable? *)
+ let url, redlink =
+ match Wikilib.generate_url_of_title r dbh hostid path with
+ | Wikilib.GenURL_Duplicate url -> url, None
+ | Wikilib.GenURL_OK url ->
+ (* Is it an extension page? *)
+ (match get_extension url with
+ | Some _ -> url, None (* extension page *)
+ | None -> url, Some path (* redlink *))
+ | Wikilib.GenURL_BadURL | Wikilib.GenURL_TooShort ->
+ raise Exit in
+ pathsofar := path;
+ name, url, redlink
+ ) superdirs in
+ superdirs, h1
+ with
+ Exit -> [], title in
+
+ let superdirs = List.map (
+ fun (name, url, redlink) ->
+ let is_redlink, redlink_title =
+ match redlink with
+ | None -> false, ""
+ | Some title -> true, title in
+ [ "url", Template.VarString url;
+ "name", Template.VarString name;
+ "is_redlink", Template.VarConditional is_redlink;
+ "redlink_title", Template.VarString redlink_title ]
+ ) superdirs in
+
+ th#conditional "has_superdirs" (superdirs <> []);
+ th#table "superdirs" superdirs;
+ th#set "h1" h1;
+
t#set "last_modified_date" last_modified_date;
(match description with
th#conditional "has_description" true;
th#set "description" description);
+ (match keywords with
+ None -> th#conditional "has_keywords" false
+ | Some keywords ->
+ th#conditional "has_keywords" true;
+ th#set "keywords" keywords);
+
if page <> page' then (* redirection *) (
t#set "page" page';
th#set "page" page';
t#conditional "redirected" false
);
- th#conditional "has_host_css" has_host_css;
th#conditional "has_page_css" has_page_css;
+ (* If the per-page noodp is not null, set the noodp flag here. Otherwise
+ * we will use the default (from hosts.global_noodp) which was set
+ * in Cocanwiki_template.
+ *)
+ (match noodp with
+ | None -> ()
+ | Some b -> th#conditional "noodp" b);
+
(* Are we showing an old version of the page? If so, warn. *)
(match version with
None ->
t#set "old_version" (Int32.to_string pageid);
th#set "old_version" (Int32.to_string pageid));
+ (* Just before we show the header, call any registered pre-page
+ * handlers. They might want to send cookies.
+ *)
+ List.iter (fun handler ->
+ handler r q dbh hostid page') !pre_page_handlers;
+
(* At this point, we can print out the header and flush it back to
* the user, allowing the browser to start fetching stylesheets
* and background images while we compose the page.
None -> []
| Some pageid ->
let rows = PGSQL(dbh)
- "select ordering, sectionname, content, divname
+ "select ordering, sectionname, content, divname, divclass, jsgo
from contents where pageid = $pageid order by ordering" in
List.map
- (fun (ordering, sectionname, content, divname) ->
+ (fun (ordering, sectionname, content, divname, divclass, jsgo) ->
let divname, has_divname =
match divname with
| None -> "", false
| Some divname -> divname, true in
+ let divclass, has_divclass =
+ match divclass with
+ | None -> "", false
+ | Some divclass -> divclass, true in
+ let jsgo, has_jsgo =
+ match jsgo with
+ | None -> "", false
+ | Some jsgo -> jsgo, true in
+
+ let has_divclass, divclass =
+ if has_jsgo then
+ (true,
+ if divclass = "" then "jsgo_div"
+ else divclass ^ " jsgo_div")
+ else
+ has_divclass, divclass in
+ let has_div = has_divname || has_divclass in
+
let sectionname, has_sectionname =
match sectionname with
| None -> "", false
"linkname", Template.VarString linkname;
"content",
Template.VarString
- (Wikilib.xhtml_of_content dbh hostid content);
+ (Wikilib.xhtml_of_content r dbh hostid content);
"has_divname", Template.VarConditional has_divname;
- "divname", Template.VarString divname ]) rows in
+ "divname", Template.VarString divname;
+ "has_divclass", Template.VarConditional has_divclass;
+ "divclass", Template.VarString divclass;
+ "has_div", Template.VarConditional has_div;
+ "has_jsgo", Template.VarConditional has_jsgo;
+ "jsgo", Template.VarString jsgo ]) rows in
(* Call an extension to generate the first section in this page? *)
let sections =
match extension with
None -> sections
| Some extension ->
- let content = extension dbh hostid page' in
+ let content = extension r dbh hostid page' in
let section = [
"ordering", Template.VarString "0";
"has_sectionname", Template.VarConditional false;
"content", Template.VarString content;
"has_divname", Template.VarConditional true;
"divname", Template.VarString "form_div";
+ "has_divclass", Template.VarConditional false;
+ "divclass", Template.VarString "";
+ "has_div", Template.VarConditional true;
+ "has_jsgo", Template.VarConditional false;
+ "jsgo", Template.VarString "";
] in
section :: sections in
t#conditional "user_logged_in" true;
t#set "username" username);
+ (* Can anonymous users create accounts? If not them we don't
+ * want to offer to create accounts for them.
+ *)
+ t#conditional "create_account_anon" host.create_account_anon;
+
(* If logged in, we want to update the recently_visited table. *)
if pageid <> None then (
match user with
| User (userid, _, _, _) ->
- PGSQL(dbh)
- "delete from recently_visited
- where hostid = $hostid and userid = $userid and url = $page'";
- PGSQL(dbh)
- "insert into recently_visited (hostid, userid, url)
- values ($hostid, $userid, $page')";
- PGOCaml.commit dbh;
+ (try
+ PGSQL(dbh)
+ "delete from recently_visited
+ where hostid = $hostid and userid = $userid
+ and url = $page'";
+ PGSQL(dbh)
+ "insert into recently_visited (hostid, userid, url)
+ values ($hostid, $userid, $page')";
+ PGOCaml.commit dbh;
+ with
+ exn ->
+ (* Exceptions here are non-fatal. Just print them. *)
+ prerr_endline "exception updating recently_visited:";
+ prerr_endline (Printexc.to_string exn);
+ PGOCaml.rollback dbh;
+ );
PGOCaml.begin_work dbh;
| _ -> ()
);
let make_404 () =
Request.set_status r 404; (* Return a 404 error code. *)
- let t = template_404 in
- t#set "page" page;
+ let th = template_404_header in
+ th#set "page" page;
let search_terms =
String.map
('a'..'z' | 'A'..'Z' | '0'..'9') as c -> c
| _ -> ' ') page in
- t#set "search_terms" search_terms;
+ th#set "search_terms" search_terms;
- t#conditional "can_edit" can_edit;
- t#conditional "can_manage_users" can_manage_users;
- t#conditional "has_stats" has_stats;
+ (* Flush out the header while we start the search. *)
+ q#header ();
+ ignore (print_string r th#to_string);
+ ignore (Request.rflush r);
+
+ let t = template_404 in
+ t#set "query" search_terms;
+ t#set "canonical_hostname" host.canonical_hostname;
+
+ (* This is a simplified version of the code in search.ml. *)
+ let have_results =
+ (* Get the keywords from the query string. *)
+ let keywords = Pcre.split ~rex:split_words search_terms in
+ let keywords =
+ List.filter (fun s -> not (string_is_whitespace s)) keywords in
+ let keywords = List.map lowercase keywords in
+
+ (* Turn the keywords into a tsearch2 ts_query string. *)
+ let tsquery = String.concat "&" keywords in
+
+ (* Search the titles first. *)
+ let rows =
+ PGSQL(dbh)
+ "select url, title, last_modified_date,
+ (lower (title) = lower ($search_terms)) as exact
+ from pages
+ where hostid = $hostid
+ and url is not null
+ and redirect is null
+ and title_description_fti @@ to_tsquery ('default', $tsquery)
+ order by exact desc, last_modified_date desc, title" in
+
+ let titles =
+ List.map (function
+ | (Some url, title, last_modified, _) ->
+ url, title, last_modified
+ | _ -> assert false) rows in
+
+ let have_titles = titles <> [] in
+ t#conditional "have_titles" have_titles;
+
+ (* Search the contents. *)
+ let rows =
+ PGSQL(dbh)
+ "select c.id, p.url, p.title, p.last_modified_date
+ from contents c, pages p
+ where c.pageid = p.id
+ and p.hostid = $hostid
+ and url is not null
+ and p.redirect is null
+ and c.content_fti @@ to_tsquery ('default', $tsquery)
+ order by p.last_modified_date desc, p.title
+ limit 50" in
+
+ let contents =
+ List.map (function
+ | (contentid, Some url, title, last_modified) ->
+ contentid, url, title, last_modified
+ | _ -> assert false) rows in
+
+ let have_contents = contents <> [] in
+ t#conditional "have_contents" have_contents;
+
+ (* Pull out the actual text which matched so we can generate a summary.
+ * XXX tsearch2 can actually do better than this by emboldening
+ * the text which maps.
+ *)
+ let content_map =
+ if contents = [] then []
+ else (
+ let rows =
+ let contentids =
+ List.map (fun (contentid, _,_,_) -> contentid) contents in
+ PGSQL(dbh)
+ "select id, sectionname, content from contents
+ where id in $@contentids" in
+ List.map (fun (id, sectionname, content) ->
+ id, (sectionname, content)) rows
+ ) in
- q#template t
+ (* Generate the final tables. *)
+ let table =
+ List.map (fun (url, title, last_modified) ->
+ let last_modified = printable_date last_modified in
+ [ "url", Template.VarString url;
+ "title", Template.VarString title;
+ "last_modified", Template.VarString last_modified ]
+ ) titles in
+ t#table "titles" table;
+
+ let table =
+ List.map
+ (fun (contentid, url, title, last_modified) ->
+ let sectionname, content = List.assoc contentid content_map in
+ let have_sectionname, sectionname =
+ match sectionname with
+ None -> false, ""
+ | Some sectionname -> true, sectionname in
+ let content =
+ truncate 160
+ (Wikilib.text_of_xhtml
+ (Wikilib.xhtml_of_content r dbh hostid content)) in
+ let linkname = linkname_of_sectionname sectionname in
+ let last_modified = printable_date last_modified in
+ [ "url", Template.VarString url;
+ "title", Template.VarString title;
+ "have_sectionname", Template.VarConditional have_sectionname;
+ "sectionname", Template.VarString sectionname;
+ "linkname", Template.VarString linkname;
+ "content", Template.VarString content;
+ "last_modified", Template.VarString last_modified ]
+ ) contents in
+ t#table "contents" table;
+
+ (* Do we have any results? *)
+ let have_results = have_titles || have_contents in
+ have_results in
+ t#conditional "have_results" have_results;
+
+ (* Deliver the rest of the page. *)
+ ignore (print_string r t#to_string)
in
(* Fetch a page by name. This function can give three answers:
| None ->
if allow_redirect then (
let rows = PGSQL(dbh)
- "select url, redirect, id, title, description,
- last_modified_date, css is not null
+ "select url, redirect, id, title, description, keywords,
+ last_modified_date, css is not null, noodp
from pages
where hostid = $hostid and lower (url) = lower ($page)" in
match rows with
- | [Some page', _, _, _, _, _, _]
+ | [Some page', _, _, _, _, _, _, _, _]
when page <> page' -> (* different case *)
FPExternalRedirect page'
- | [ _, None, id, title, description,
- last_modified_date, has_page_css ] ->
+ | [ _, None, id, title, description, keywords,
+ last_modified_date, has_page_css, noodp ] ->
let has_page_css = Option.get has_page_css in
- FPOK (id, title, description, last_modified_date,
- has_page_css)
- | [_, Some redirect, _, _, _, _, _] ->
+ FPOK (id, title, description, keywords, last_modified_date,
+ has_page_css, noodp)
+ | [_, Some redirect, _, _, _, _, _, _, _] ->
FPInternalRedirect redirect
| [] -> FPNotFound
| _ -> assert false
) else (* redirects not allowed ... *) (
let rows = PGSQL(dbh)
- "select id, title, description, last_modified_date,
- css is not null
+ "select id, title, description, keywords, last_modified_date,
+ css is not null, noodp
from pages where hostid = $hostid and url = $page" in
match rows with
- | [ id, title, description,
- last_modified_date, has_page_css ] ->
+ | [ id, title, description, keywords,
+ last_modified_date, has_page_css, noodp ] ->
let has_page_css = Option.get has_page_css in
- FPOK (id, title, description, last_modified_date,
- has_page_css)
+ FPOK (id, title, description, keywords, last_modified_date,
+ has_page_css, noodp)
| [] -> FPNotFound
| _ -> assert false
)
| Some version ->
let rows = PGSQL(dbh)
- "select id, title, description, last_modified_date,
- css is not null
+ "select id, title, description, keywords, last_modified_date,
+ css is not null, noodp
from pages
where hostid = $hostid and id = $version and
(url = $page or url_deleted = $page)" in
match rows with
- | [ id, title, description,
- last_modified_date, has_page_css ] ->
+ | [ id, title, description, keywords,
+ last_modified_date, has_page_css, noodp ] ->
let has_page_css = Option.get has_page_css in
- FPOK (id, title, description, last_modified_date,
- has_page_css)
+ FPOK (id, title, description, keywords, last_modified_date,
+ has_page_css, noodp)
| [] -> FPNotFound
| _ -> assert false
in
let rec loop page' i =
if i > max_redirect then (
error ~title:"Too many redirections" ~back_button:true
- dbh hostid q
+ r dbh hostid q
("Too many redirects between pages. This may happen because " ^
"of a cycle of redirections.");
return ()
) else
match fetch_page page' version allow_redirect with
- | FPOK (pageid, title, description, last_modified_date, has_page_css)->
+ | FPOK (pageid, title, description, keywords,
+ last_modified_date, has_page_css, noodp)->
(* Check if the page is also a template. *)
let extension = get_extension page' in
- make_page title (Some description) (Some pageid)
- (printable_date last_modified_date) has_page_css
+ make_page title (Some description) keywords (Some pageid)
+ (printable_date last_modified_date) has_page_css noodp
version page page' extension
| FPInternalRedirect page' ->
loop page' (i+1)
| FPExternalRedirect page' ->
- (* This normally happens when a user has request an uppercase
+ (* This normally happens when a user has requested an uppercase
* page name. We redirect to the true (lowercase) version.
*)
- q#redirect ("http://" ^ host.hostname ^ "/" ^ page');
- return ()
+ q#redirect ("http://" ^ host.hostname ^ "/" ^ page')
| FPNotFound ->
(* Might be a templated page with no content in it. *)
let extension = get_extension page' in
(match extension with
| (Some _) as extension ->
let title = page' in
- make_page title None None
- "Now" false None page page'
+ make_page title None None None
+ "Now" false None None page page'
extension
| None ->
make_404 ())
git.annexia.org / cocanwiki.git / blobdiff