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ROC/src/service/cms_api.e

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note
description: "API for a CMS"
date: "$Date: 2015-02-13 13:08:13 +0100 (ven., 13 févr. 2015) $"
revision: "$Revision: 96616 $"
class
CMS_API
inherit
ANY
REFACTORING_HELPER
CMS_ENCODERS
create
make
feature {NONE} -- Initialize
make (a_setup: CMS_SETUP)
-- Create the API service with a setup `a_setup'
do
setup := a_setup
create error_handler.make
create {CMS_ENV_LOGGER} logger.make
initialize
ensure
setup_set: setup = a_setup
error_handler_set: not error_handler.has_error
end
initialize
-- Initialize the persitent layer.
local
l_module: CMS_MODULE
do
if attached setup.storage (error_handler) as l_storage then
storage := l_storage
else
create {CMS_STORAGE_NULL} storage
end
storage.set_api (Current)
across
setup.enabled_modules as ic
loop
l_module := ic.item
-- FIXME: should we initialize first, and then install
-- or the reverse, or merge installation and initialization
-- and leave the responsability to the module to know
-- if this is installed or not...
if not l_module.is_installed (Current) then
l_module.install (Current)
end
l_module.initialize (Current)
end
end
feature -- Access
setup: CMS_SETUP
-- CMS setup.
logger: CMS_LOGGER
-- Logger
storage: CMS_STORAGE
-- Default persistence storage.
feature -- Formats
formats: CMS_FORMATS
-- Available content formats.
once
create Result
end
format (a_format_name: detachable READABLE_STRING_GENERAL): detachable CONTENT_FORMAT
-- Content format name `a_format_name' if any.
do
Result := formats.item (a_format_name)
end
feature -- Status Report
has_error: BOOLEAN
-- Has error?
do
Result := error_handler.has_error
end
string_representation_of_errors: STRING_32
-- String representation of all error(s).
do
Result := error_handler.as_string_representation
end
feature -- Logging
log (a_category: READABLE_STRING_8; a_message: READABLE_STRING_8; a_level: INTEGER; a_link: detachable CMS_LINK)
local
l_log: CMS_LOG
m: STRING
do
create l_log.make (a_category, a_message, a_level, Void)
if a_link /= Void then
l_log.set_link (a_link)
end
storage.save_log (l_log)
create m.make_from_string ("[" + a_category + "] ")
m.append (a_message)
if a_link /= Void then
m.append (" [" + url_encoded (a_link.title) + "]("+ a_link.location +")")
end
inspect a_level
when {CMS_LOG}.level_emergency then
logger.put_alert (m, Void)
when {CMS_LOG}.level_alert then
logger.put_alert (m, Void)
when {CMS_LOG}.level_critical then
logger.put_critical (m, Void)
when {CMS_LOG}.level_error then
logger.put_error (m, Void)
when {CMS_LOG}.level_warning then
logger.put_warning (m, Void)
when {CMS_LOG}.level_notice then
logger.put_information (m, Void)
when {CMS_LOG}.level_info then
logger.put_information (m, Void)
when {CMS_LOG}.level_debug then
logger.put_debug (m, Void)
else
logger.put_debug (m, Void)
end
end
feature -- Emails
new_email (a_to_address: READABLE_STRING_8; a_subject: READABLE_STRING_8; a_content: READABLE_STRING_8): CMS_EMAIL
-- New email object.
do
create Result.make (setup.site_email, a_to_address, a_subject, a_content)
end
process_email (e: CMS_EMAIL)
-- Process email `e'.
do
reset_error
setup.mailer.safe_process_email (e)
if setup.mailer.has_error then
error_handler.add_custom_error (0, "Mailer error", "Error occurred while processing email.")
end
end
process_emails (lst: ITERABLE [CMS_EMAIL])
-- Process collection of email `lst'.
do
reset_error
setup.mailer.process_emails (lst)
if setup.mailer.has_error then
error_handler.add_custom_error (0, "Mailer error", "Error occurred while processing emails.")
end
end
feature -- Permissions system
user_has_permission (a_user: detachable CMS_USER; a_permission: detachable READABLE_STRING_GENERAL): BOOLEAN
-- Anonymous or user `a_user' has permission for `a_permission'?
--| `a_permission' could be for instance "create page".
do
Result := user_api.user_has_permission (a_user, a_permission)
end
feature -- Query: module
module (a_type: TYPE [CMS_MODULE]): detachable CMS_MODULE
-- Enabled module typed `a_type', if any.
--| usage: if attached module ({FOO_MODULE}) as mod then ...
local
l_type: TYPE [detachable CMS_MODULE]
do
across
setup.modules as ic
until
Result /= Void
loop
Result := ic.item
if not Result.is_enabled then
Result := Void
else
l_type := Result.generating_type
if a_type ~ l_type then
-- Found
elseif
attached a_type.attempt (Result) and then attached l_type.generating_type.attempt (a_type)
then
-- Found
else
Result := Void
end
end
end
ensure
Result /= Void implies (Result.is_enabled) -- and a_type.is_conforming_to (Result.generating_type))
end
module_api (a_type: TYPE [CMS_MODULE]): detachable CMS_MODULE_API
-- Enabled module API associated with module typed `a_type'.
do
if attached module (a_type) as mod then
if mod.is_enabled then
if not mod.is_initialized then
mod.initialize (Current)
end
Result := mod.module_api
end
end
end
module_by_name (a_name: READABLE_STRING_GENERAL): detachable CMS_MODULE
-- Enabled module named `a_name', if any.
do
across
setup.modules as ic
until
Result /= Void
loop
Result := ic.item
if
not Result.is_enabled
or else not Result.name.is_case_insensitive_equal_general (a_name)
then
Result := Void
end
end
ensure
Result /= Void implies (Result.is_enabled and Result.name.is_case_insensitive_equal_general (a_name))
end
module_api_by_name (a_name: READABLE_STRING_GENERAL): detachable CMS_MODULE_API
-- Enabled module API associated with module named `a_name'.
do
if attached module_by_name (a_name) as mod then
Result := mod.module_api
end
end
feature -- Query: API
user_api: CMS_USER_API
local
l_api: like internal_user_api
do
l_api := internal_user_api
if l_api = Void then
create l_api.make (Current)
internal_user_api := l_api
end
Result := l_api
end
feature -- Path aliases
is_valid_path_alias (a_alias: READABLE_STRING_8): BOOLEAN
do
Result := a_alias.is_empty or else not a_alias.starts_with_general ("/")
end
set_path_alias (a_source, a_alias: READABLE_STRING_8; a_keep_previous: BOOLEAN)
-- Set `a_alias' as alias of `a_source',
-- and eventually unset previous alias if any.
require
valid_alias: is_valid_path_alias (a_alias)
local
l_continue: BOOLEAN
do
if attached storage.path_alias (a_source) as l_existing_alias then
if a_alias.same_string (l_existing_alias) then
-- Already aliased as expected
else
-- New alias
if a_keep_previous then
l_continue := True
else
storage.replace_path_alias (a_source, l_existing_alias, a_alias)
end
end
elseif a_alias.is_whitespace then
-- Ignore
elseif a_source.same_string (a_alias) then
-- No need for alias
else
l_continue := True
end
if l_continue then
storage.set_path_alias (a_source, a_alias)
end
end
unset_path_alias (a_source: READABLE_STRING_8; a_alias: READABLE_STRING_8)
do
storage.unset_path_alias (a_source, a_alias)
end
path_alias (a_source: READABLE_STRING_8): READABLE_STRING_8
-- Path alias associated with `a_source' or the source itself.
do
Result := a_source
if attached storage.path_alias (Result) as l_path then
Result := "/" + l_path
end
end
source_of_path_alias (a_alias: READABLE_STRING_8): READABLE_STRING_8
-- Resolved path for alias `a_alias'.
--| the CMS supports aliases for path, and then this function simply returns
--| the effective target path/url for this `a_alias'.
--| For instance: articles/2015/may/this-is-an-article can be an alias to node/123
--| This function will return "node/123".
--| If the alias is bad (i.e does not alias real path), then this function
--| returns the alias itself.
do
Result := a_alias
if attached storage.source_of_path_alias (Result) as l_path then
Result := l_path
end
end
feature -- Element Change: Error
reset_error
-- Reset error handler.
do
error_handler.reset
end
feature {NONE}-- Implemenation
error_handler: ERROR_HANDLER
-- Error handler.
internal_user_api: detachable like user_api
-- Cached value for `user_api'.
feature -- Environment/ theme
site_location: PATH
-- CMS site location.
do
Result := setup.site_location
end
files_location: PATH
-- CMS public files location.
do
Result := setup.files_location
end
theme_location: PATH
-- Active theme location.
do
Result := setup.theme_location
end
theme_assets_location: PATH
-- assets (js, css, images, etc).
do
debug ("refactor_fixme")
fixme ("Check if we really need it")
end
-- Check how to get this path from the CMS_THEME information.
Result := theme_location.extended ("assets")
end
feature -- Environment/ module
module_configuration_by_name (a_module_name: READABLE_STRING_GENERAL; a_name: detachable READABLE_STRING_GENERAL): detachable CONFIG_READER
-- Configuration reader for `a_module', and if `a_name' is set, using name `a_name'.
local
p, l_path: detachable PATH
l_name: READABLE_STRING_GENERAL
ut: FILE_UTILITIES
do
if a_name = Void then
l_name := a_module_name
else
l_name := a_name
end
p := module_location_by_name (a_module_name).extended ("config").extended (l_name)
l_path := p.appended_with_extension ("json")
if ut.file_path_exists (l_path) then
create {JSON_CONFIG} Result.make_from_file (l_path)
else
l_path := p.appended_with_extension ("ini")
if ut.file_path_exists (l_path) then
create {INI_CONFIG} Result.make_from_file (l_path)
end
end
if Result = Void and a_name /= Void then
-- Use sub config from default?
if attached {CONFIG_READER} module_configuration_by_name (a_module_name, Void) as cfg then
Result := cfg.sub_config (a_name)
else
-- Maybe try to use the global cms.ini ?
end
end
end
modules_location: PATH
-- Directory containing cms modules.
do
Result := setup.modules_location
end
module_location (a_module: CMS_MODULE): PATH
-- Location associated with `a_module'.
do
Result := module_location_by_name (a_module.name)
end
module_location_by_name (a_module_name: READABLE_STRING_GENERAL): PATH
-- Location associated with `a_module_name'.
do
Result := modules_location.extended (a_module_name)
end
module_resource_location (a_module: CMS_MODULE; a_resource: PATH): PATH
-- Location of resource `a_resource' for `a_module'.
do
--| site/modules/$modname/$a_name.json
Result := module_resource_location_by_name (a_module.name, a_resource)
end
module_resource_location_by_name (a_module_name: READABLE_STRING_GENERAL; a_resource: PATH): PATH
-- Location of resource `a_resource' for `a_module'.
do
--| site/modules/$modname/$a_name.json
Result := module_location_by_name (a_module_name).extended_path (a_resource)
end
feature -- Environment/ modules and theme
module_theme_resource_location (a_module: CMS_MODULE; a_resource: PATH): detachable PATH
-- Theme resource location of `a_resource' for module `a_module', if exists.
-- By default, located under the module location folder, but could be overriden
-- from files located under modules subfolder of active `theme_location'.
--| First search in themes/$theme/modules/$a_module.name/$a_resource,
--| and if not found then search in
--| modules/$a_module_name/$a_resource.
local
ut: FILE_UTILITIES
do
-- Check first in selected theme folder.
Result := module_theme_location (a_module).extended_path (a_resource)
if not ut.file_path_exists (Result) then
-- And if not found, look into site/modules/$a_module.name/.... folders.
Result := module_resource_location (a_module, a_resource)
if not ut.file_path_exists (Result) then
Result := Void
end
end
end
module_theme_resource_location_by_name (a_module_name: READABLE_STRING_GENERAL; a_resource: PATH): detachable PATH
-- Theme resource location of `a_resource' for module named `a_module_name', if exists.
-- By default, located under the module location folder, but could be overriden
-- from files located under modules subfolder of active `theme_location'.
--| First search in themes/$theme/modules/$a_module.name/$a_resource,
--| and if not found then search in
--| modules/$a_module_name/$a_resource.
local
ut: FILE_UTILITIES
do
-- Check first in selected theme folder.
Result := module_theme_location_by_name (a_module_name).extended_path (a_resource)
if not ut.file_path_exists (Result) then
-- And if not found, look into site/modules/$a_module.name/.... folders.
Result := module_resource_location_by_name (a_module_name, a_resource)
if not ut.file_path_exists (Result) then
Result := Void
end
end
end
module_theme_location (a_module: CMS_MODULE): PATH
-- Location for overriden files associated with `a_module_name'.
do
Result := module_theme_location_by_name (a_module.name)
end
module_theme_location_by_name (a_module_name: READABLE_STRING_GENERAL): PATH
-- Location for overriden files associated with `a_module_name'.
do
Result := theme_location.extended ("modules").extended (a_module_name)
end
module_configuration (a_module: CMS_MODULE; a_name: detachable READABLE_STRING_GENERAL): detachable CONFIG_READER
do
Result := module_configuration_by_name (a_module.name, a_name)
end
note
copyright: "2011-2015, Jocelyn Fiat, Javier Velilla, Eiffel Software and others"
license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
end