Files
ROC/modules/node/handler/node_handler.e
Jocelyn Fiat 3496536751 Added CMS_API.request: WSF_REQUEST to ease dev of ROC CMS code.
- Removed CMS_REQUEST_UTIL
  - centralize a few request related code into CMS_API
Added CMS_API.user, CMS_API.set_user (CMS_USER), ... and user related routines.

Refactored Auth related code
  - added various abstractions to factorize implementation and harmonize solutions.
  - revisited the logout strategy.
  - updated the account info page, and remove info user should not care about.
  - simplified the process, and encourage auth module to follow same design.

Added CMS_LINK helper routines to modify the related query string.
Removed CMS_USER.profile (and related routines)
   - It was not used so far.
   - it will probably a specific module later, if needed.

Update various module to avoid fetching user from sql directly, and let this task to CMS_USER_API.

Removed CMS_NODE_API.node_author (a_node: CMS_NODE): detachable CMS_USER,
   - as the info is already in CMS_NODE.author

Added CMS_RESPONSE.redirection_delay, if ever one code want to redirect after a few seconds.
Added the request uri info to the not found cms response.
2016-01-29 21:58:49 +01:00

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note
description: "[
handler for CMS node in the CMS interface.
TODO: implement REST API.
]"
date: "$Date: 2015-02-13 13:08:13 +0100 (ven., 13 févr. 2015) $"
revision: "$Revision: 96616 $"
class
NODE_HANDLER
inherit
CMS_NODE_HANDLER
WSF_URI_HANDLER
rename
execute as uri_execute,
new_mapping as new_uri_mapping
end
WSF_URI_TEMPLATE_HANDLER
rename
execute as uri_template_execute,
new_mapping as new_uri_template_mapping
select
new_uri_template_mapping
end
WSF_RESOURCE_HANDLER_HELPER
redefine
do_get,
do_post,
do_put,
do_delete
end
REFACTORING_HELPER
create
make
feature -- execute
execute (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Execute request handler
do
execute_methods (req, res)
end
uri_execute (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Execute request handler
do
execute (req, res)
end
uri_template_execute (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Execute request handler
do
execute (req, res)
end
feature -- Query
node_id_path_parameter (req: WSF_REQUEST): INTEGER_64
-- Node id passed as path parameter for request `req'.
local
s: STRING
do
if attached {WSF_STRING} req.path_parameter ("id") as p_nid then
s := p_nid.value
if s.is_integer_64 then
Result := s.to_integer_64
end
end
end
feature -- HTTP Methods
do_get (req: WSF_REQUEST; res: WSF_RESPONSE)
-- <Precursor>
local
l_node: detachable CMS_NODE
l_nid, l_rev: INTEGER_64
edit_response: NODE_FORM_RESPONSE
view_response: NODE_VIEW_RESPONSE
do
if req.percent_encoded_path_info.ends_with ("/edit") then
check valid_url: req.percent_encoded_path_info.starts_with ("/node/") end
create edit_response.make (req, res, api, node_api)
edit_response.execute
elseif req.percent_encoded_path_info.ends_with ("/delete") then
check valid_url: req.percent_encoded_path_info.starts_with ("/node/") end
create edit_response.make (req, res, api, node_api)
edit_response.execute
elseif req.percent_encoded_path_info.ends_with ("/trash") then
check valid_url: req.percent_encoded_path_info.starts_with ("/node/") end
create edit_response.make (req, res, api, node_api)
edit_response.execute
elseif req.percent_encoded_path_info.ends_with ("/revision") then
do_revisions (req, res)
-- elseif req.percent_encoded_path_info.ends_with ("/add_child/page") then
-- -- Add child node
-- l_nid := node_id_path_parameter (req)
-- if l_nid > 0 then
-- -- create a new child node with node id `l_id' as parent.
-- create_new_node (req, res)
-- else
-- send_not_found (req, res)
-- end
else
-- Display existing node
l_nid := node_id_path_parameter (req)
if l_nid > 0 then
if
attached {WSF_STRING} req.query_parameter ("revision") as p_rev and then
p_rev.value.is_integer_64
then
l_rev := p_rev.value.to_integer_64
end
l_node := node_api.node (l_nid)
if
l_node /= Void and then
l_rev > 0 and then
node_api.has_permission_for_action_on_node ("view revisions", l_node, api.user)
then
l_node := node_api.revision_node (l_nid, l_rev)
end
if l_node = Void then
send_not_found (req, res)
else
if
l_rev > 0 or else l_node.is_published
then
create view_response.make (req, res, api, node_api)
view_response.set_node (l_node)
view_response.set_revision (l_rev)
view_response.execute
elseif
attached api.user as l_user and then
( node_api.is_author_of_node (l_user, l_node)
or else api.user_has_permission (l_user, "view unpublished " + l_node.content_type)
)
then
create view_response.make (req, res, api, node_api)
view_response.set_node (l_node)
view_response.set_revision (l_rev)
view_response.execute
else
send_access_denied (req, res)
end
end
else
-- redirect_to (req.absolute_script_url ("/node/"), res) -- New node.
-- send_bad_request (req, res)
create_new_node (req, res)
end
end
end
do_post (req: WSF_REQUEST; res: WSF_RESPONSE)
-- <Precursor>
local
edit_response: NODE_FORM_RESPONSE
do
fixme ("Refactor code: extract methods: edit_node and add_node")
if req.percent_encoded_path_info.ends_with ("/edit") then
create edit_response.make (req, res, api, node_api)
edit_response.execute
elseif req.percent_encoded_path_info.ends_with ("/delete") then
if
attached {WSF_STRING} req.form_parameter ("op") as l_op and then
l_op.value.same_string ("Delete")
then
do_delete (req, res)
elseif
attached {WSF_STRING} req.form_parameter ("op") as l_op and then
l_op.value.same_string ("Restore")
then
do_restore (req, res)
end
elseif req.percent_encoded_path_info.ends_with ("/trash") then
if
attached {WSF_STRING} req.form_parameter ("op") as l_op and then
l_op.value.same_string ("Trash")
then
do_trash (req, res)
end
elseif req.percent_encoded_path_info.starts_with ("/node/add/") then
create edit_response.make (req, res, api, node_api)
edit_response.execute
elseif req.percent_encoded_path_info.ends_with ("/add_child/page") then
create edit_response.make (req, res, api, node_api)
edit_response.execute
else
to_implement ("REST API")
send_not_implemented ("REST API not yet implemented", req, res)
end
end
do_put (req: WSF_REQUEST; res: WSF_RESPONSE)
-- <Precursor>
do
to_implement ("REST API")
send_not_implemented ("REST API not yet implemented", req, res)
end
do_trash (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Trash a node, soft delete.
do
if attached api.user as l_user then
if attached {WSF_STRING} req.path_parameter ("id") as l_id then
if
l_id.is_integer and then
attached node_api.node (l_id.integer_value) as l_node
then
if node_api.has_permission_for_action_on_node ("trash", l_node, l_user) then
node_api.trash_node (l_node)
res.send (create {CMS_REDIRECTION_RESPONSE_MESSAGE}.make (req.absolute_script_url ("")))
else
send_access_denied (req, res)
-- send_not_authorized ?
end
else
do_error (req, res, l_id)
end
else
(create {INTERNAL_SERVER_ERROR_CMS_RESPONSE}.make (req, res, api)).execute
end
else
send_access_denied (req, res)
end
end
process_node_creation (req: WSF_REQUEST; res: WSF_RESPONSE; a_user: CMS_USER)
do
to_implement ("REST API")
send_not_implemented ("REST API not yet implemented", req, res)
end
feature {NONE} -- Trash:Restore
do_delete (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Delete a node from the database.
local
l_source: STRING
do
if attached api.user as l_user then
if attached {WSF_STRING} req.path_parameter ("id") as l_id then
if
l_id.is_integer and then
attached {CMS_NODE} node_api.node (l_id.integer_value) as l_node
then
if node_api.has_permission_for_action_on_node ("delete", l_node, l_user) then
node_api.delete_node (l_node)
l_source := node_api.node_path (l_node)
api.unset_path_alias (l_source, api.location_alias (l_source))
res.send (create {CMS_REDIRECTION_RESPONSE_MESSAGE}.make (req.absolute_script_url ("")))
else
send_access_denied (req, res)
-- send_not_authorized ?
end
else
do_error (req, res, l_id)
end
else
(create {INTERNAL_SERVER_ERROR_CMS_RESPONSE}.make (req, res, api)).execute
end
else
send_access_denied (req, res)
end
end
do_restore (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Restore a node: From {CMS_NODE_API}.trashed to {CMS_NODE_API}.not_published.
do
if attached api.user as l_user then
if attached {WSF_STRING} req.path_parameter ("id") as l_id then
if
l_id.is_integer and then
attached node_api.node (l_id.integer_value) as l_node
then
if node_api.has_permission_for_action_on_node ("restore", l_node, l_user) then
node_api.restore_node (l_node)
res.send (create {CMS_REDIRECTION_RESPONSE_MESSAGE}.make (req.absolute_script_url ("")))
else
send_access_denied (req, res)
-- send_not_authorized ?
end
else
do_error (req, res, l_id)
end
else
(create {INTERNAL_SERVER_ERROR_CMS_RESPONSE}.make (req, res, api)).execute
end
else
send_access_denied (req, res)
end
end
do_revisions (req: WSF_REQUEST; res: WSF_RESPONSE)
-- Display revisions of a node.
local
r: GENERIC_VIEW_CMS_RESPONSE
b: STRING
n: CMS_NODE
do
if attached {WSF_STRING} req.path_parameter ("id") as l_id then
if
l_id.is_integer and then
attached node_api.node (l_id.integer_value) as l_node
then
if node_api.has_permission_for_action_on_node ("view revisions", l_node, api.user) then
create r.make (req, res, api)
create b.make_empty
b.append ("<ul>")
across
node_api.node_revisions (l_node) as ic
loop
n := ic.item
b.append ("<li>")
b.append ("<a href=%"")
b.append (r.url (node_api.node_path (n) + "?revision=" + n.revision.out, Void))
b.append ("%">")
b.append (n.revision.out)
b.append (" : ")
b.append (n.modification_date.out)
b.append ("</a>")
if attached n.author as l_author then
b.append (" by ")
b.append (r.link (l_author.name, "user/" + l_author.id.out, Void))
end
b.append ("</li>")
end
b.append ("</ul>")
r.set_title ("Revisions for " + html_encoded (l_node.title))
r.set_main_content (b)
r.execute
else
send_access_denied (req, res)
-- send_not_authorized ?
end
else
do_error (req, res, l_id)
end
else
(create {INTERNAL_SERVER_ERROR_CMS_RESPONSE}.make (req, res, api)).execute
end
end
feature -- Error
do_error (req: WSF_REQUEST; res: WSF_RESPONSE; a_id: detachable WSF_STRING)
-- Handling error.
local
l_page: CMS_RESPONSE
do
create {GENERIC_VIEW_CMS_RESPONSE} l_page.make (req, res, api)
l_page.set_value (req.absolute_script_url (req.percent_encoded_path_info), "request")
if a_id /= Void and then a_id.is_integer then
-- resource not found
l_page.set_value ("404", "code")
l_page.set_status_code (404)
else
-- bad request
l_page.set_value ("400", "code")
l_page.set_status_code (400)
end
l_page.execute
end
feature {NONE} -- Node
create_new_node (req: WSF_REQUEST; res: WSF_RESPONSE)
local
edit_response: NODE_FORM_RESPONSE
do
if req.percent_encoded_path_info.starts_with_general ("/node/") then
create edit_response.make (req, res, api, node_api)
edit_response.execute
elseif req.is_get_request_method then
redirect_to (req.absolute_script_url ("/node/"), res)
else
send_bad_request (req, res)
end
end
end