included file_uploader in demo-cms
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fmurer
254
examples/demo/modules/file_upload/cms_file_upload.e
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254
examples/demo/modules/file_upload/cms_file_upload.e
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@@ -0,0 +1,254 @@
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note
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description: "file_upload application root class"
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date: "$Date$"
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revision: "$Revision$"
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class
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CMS_FILE_UPLOAD
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inherit
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CMS_MODULE
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redefine
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install,
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initialize,
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setup_hooks
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end
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CMS_HOOK_BLOCK
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CMS_HOOK_MENU_SYSTEM_ALTER
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-- WSF_ROUTED_URI_TEMPLATE_HELPER
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SHARED_EXECUTION_ENVIRONMENT
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create
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make
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feature {NONE} -- Initialization
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make
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do
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name := "file_uploader"
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version := "1.0"
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description := "Service to upload some files"
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package := "file upload"
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end
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feature -- Access
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name: STRING
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feature {CMS_API} -- Module Initialization
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initialize (api: CMS_API)
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-- <Precursor>
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do
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Precursor (api)
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end
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feature {CMS_API }-- Module management
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install (api: CMS_API)
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-- install the module
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local
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sql: STRING
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do
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-- create a database table
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if attached {CMS_STORAGE_SQL_I} api.storage as l_sql_storage then
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if not l_sql_storage.sql_table_exists ("file_upload_table") then
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sql := "[
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CREATE TABLE file_upload_table(
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`id` INTEGER PRIMARY KEY AUTO_INCREMENT NOT NULL CHECK("id">=0),
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`name` VARCHAR(100) NOT NULL,
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`uploaded_date` DATE,
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`size` INTEGER
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);
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]"
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l_sql_storage.sql_execute_script (sql, Void)
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if l_sql_storage.has_error then
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api.logger.put_error ("Could not initialize database for file uploader module", generating_type)
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end
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end
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Precursor {CMS_MODULE}(api)
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end
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end
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feature -- Access: router
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setup_router (a_router: WSF_ROUTER; a_api: CMS_API)
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-- <Precursor>
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local
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www: WSF_FILE_SYSTEM_HANDLER
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do
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map_uri_template_agent (a_router, "/upload{?nb}", agent execute_upload_handler, void)
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create www.make_with_path (document_root)
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www.set_directory_index (<<"index.html">>)
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www.set_not_found_handler (agent execute_not_found_handler)
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a_router.handle("", www, a_router.methods_get)
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end
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feature -- Hooks
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setup_hooks (a_hooks: CMS_HOOK_CORE_MANAGER)
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do
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a_hooks.subscribe_to_menu_system_alter_hook (Current)
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a_hooks.subscribe_to_block_hook (Current)
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end
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block_list: ITERABLE [like {CMS_BLOCK}.name]
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do
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Result := <<"Uploader info TODO">>
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end
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get_block_view (a_block_id: READABLE_STRING_8; a_response: CMS_RESPONSE)
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do
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end
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menu_system_alter (a_menu_system: CMS_MENU_SYSTEM; a_response: CMS_RESPONSE)
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local
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link: CMS_LOCAL_LINK
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do
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create link.make ("Upload", "/upload")
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a_menu_system.primary_menu.extend (link)
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end
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feature -- Configuration
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document_root: PATH
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-- Document root to look for files or directories
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once
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Result := execution_environment.current_working_path.extended ("docs")
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end
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files_root: PATH
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-- Uploaded files will be stored in `files_root' folder
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once
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Result := document_root.extended ("files")
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end
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feature -- Handler
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execute_not_found_handler (uri: READABLE_STRING_8; req: WSF_REQUEST; res: WSF_RESPONSE)
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-- `uri' is not found, redirect to default page
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do
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res.redirect_now_with_content (req.script_url ("/"), uri + ": not found. %N Redirectioin to" + req.script_url ("/"), "text/html")
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end
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execute_upload_handler(req: WSF_REQUEST; res: WSF_RESPONSE; a_api: CMS_API)
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local
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body: STRING_8
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safe_filename: STRING_8
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path: PATH
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page: WSF_HTML_PAGE_RESPONSE
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n: INTEGER
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do
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if req.is_request_method ("GET") or else not req.has_uploaded_file then
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create page.make
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page.set_title ("EWF: Upload file")
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page.add_style (req.script_url ("style.css"), "all")
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create body.make_empty
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page.set_body (body)
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-- create the body
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body.append ("<h1> EWF: Upload files </h1>%N")
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body.append ("<form action=%"" + req.script_url ("/upload") + "%" method=%"POST%" enctype=%"multipart/form-data%">%N")
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-- tetermine how many files to upload by a query parameter ?nb=number_of_files
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if attached {WSF_STRING} req.query_parameter ("nb") as p_nb and then p_nb.is_integer then
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n := p_nb.integer_value
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else
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n := 1
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end
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-- llist for the number of wanted files a upload button
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from
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until
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n = 0
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loop
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body.append ("<input type=%"file%" name=%"uploaded_file[]%" size=%"60%"></br> %N")
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n := n-1
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end
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-- set the submit button
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body.append ("<button type=%"submit%">UPLOAD</button>%N")
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res.send (page)
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else
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create body.make_empty
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body.append ("<h1>EWF: Uploaded files</h1>%N")
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body.append ("<ul>%N")
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n := 0
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across
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req.uploaded_files as u_file
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loop
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body.append ("<li>%N")
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body.append ("<div>" + u_file.item.name + "=" + html_encode (u_file.item.filename) + " size=" + u_file.item.size.out + " type" + u_file.item.content_type + "</div> %N")
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safe_filename := u_file.item.safe_filename
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path := files_root.extended (safe_filename)
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-- TODO: list dhe uploaded items
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body.append ("</li> %N")
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end
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body.append ("</ul> %N")
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-- create page
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create page.make
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page.add_style ("../style.css", "all")
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page.set_body (body)
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res.send (page)
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end
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end
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feature {NONE} -- Encoder
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url_encode (s: READABLE_STRING_32): STRING_8
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-- URL Encode `s' as Result
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do
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Result := url_encoder.encoded_string (s)
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end
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url_encoder: URL_ENCODER
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once
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create Result
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end
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html_encode (s: READABLE_STRING_32): STRING_8
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-- HTML Encode `s' as Result
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do
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Result := html_encoder.encoded_string (s)
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end
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html_encoder: HTML_ENCODER
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once
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create Result
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end
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feature -- Mapping helper: uri template agent
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map_uri_template (a_router: WSF_ROUTER; a_tpl: STRING; h: WSF_URI_TEMPLATE_HANDLER; rqst_methods: detachable WSF_REQUEST_METHODS)
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-- Map `h' as handler for `a_tpl', according to `rqst_methods'.
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require
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a_tpl_attached: a_tpl /= Void
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h_attached: h /= Void
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do
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a_router.map (create {WSF_URI_TEMPLATE_MAPPING}.make (a_tpl, h), rqst_methods)
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end
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map_uri_template_agent (a_router: WSF_ROUTER; a_tpl: READABLE_STRING_8; proc: PROCEDURE [TUPLE [req: WSF_REQUEST; res: WSF_RESPONSE]]; rqst_methods: detachable WSF_REQUEST_METHODS)
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-- Map `proc' as handler for `a_tpl', according to `rqst_methods'.
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require
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a_tpl_attached: a_tpl /= Void
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proc_attached: proc /= Void
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do
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map_uri_template (a_router, a_tpl, create {WSF_URI_TEMPLATE_AGENT_HANDLER}.make (proc), rqst_methods)
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end
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end
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