Automatic TGS DMAPI Update

code/__DEFINES/tgs.dm

@@ -1,18 +1,19 @@
 // tgstation-server DMAPI
+// The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in IETF RFC 2119.
 
-#define TGS_DMAPI_VERSION "7.1.2"
+#define TGS_DMAPI_VERSION "7.2.1"
 
 // All functions and datums outside this document are subject to change with any version and should not be relied on.
 
 // CONFIGURATION
 
-/// Create this define if you want to do TGS configuration outside of this file.
+/// Consumers SHOULD create this define if you want to do TGS configuration outside of this file.
 #ifndef TGS_EXTERNAL_CONFIGURATION
 
-// Comment this out once you've filled in the below.
+// Consumers MUST comment this out once you've filled in the below and are not using [TGS_EXTERNAL_CONFIGURATION].
 #error TGS API unconfigured
 
-// Uncomment this if you wish to allow the game to interact with TGS 3..
+// Consumers MUST uncomment this if you wish to allow the game to interact with TGS version 3.
 // This will raise the minimum required security level of your game to TGS_SECURITY_TRUSTED due to it utilizing call()().
 //#define TGS_V3_API
 
@@ -52,7 +53,7 @@
 
 #ifndef TGS_FILE2TEXT_NATIVE
 #ifdef file2text
-#error Your codebase is re-defining the BYOND proc file2text. The DMAPI requires the native version to read the result of world.Export(). You can fix this by adding "#define TGS_FILE2TEXT_NATIVE file2text" before your override of file2text to allow the DMAPI to use the native version. This will only be used for world.Export(), not regular file accesses
+#error Your codebase is re-defining the BYOND proc file2text. The DMAPI requires the native version to read the result of world.Export(). You SHOULD fix this by adding "#define TGS_FILE2TEXT_NATIVE file2text" before your override of file2text to allow the DMAPI to use the native version. This will only be used for world.Export(), not regular file accesses
 #endif
 #define TGS_FILE2TEXT_NATIVE file2text
 #endif
@@ -152,16 +153,17 @@
 //REQUIRED HOOKS
 
 /**
- * Call this somewhere in [/world/proc/New] that is always run. This function may sleep!
+ * Consumers MUST call this somewhere in [/world/proc/New] that is always run. This function may sleep!
  *
  * * event_handler - Optional user defined [/datum/tgs_event_handler].
  * * minimum_required_security_level: The minimum required security level to run the game in which the DMAPI is integrated. Can be one of [TGS_SECURITY_ULTRASAFE], [TGS_SECURITY_SAFE], or [TGS_SECURITY_TRUSTED].
+ * * http_handler - Optional user defined [/datum/tgs_http_handler].
  */
-/world/proc/TgsNew(datum/tgs_event_handler/event_handler, minimum_required_security_level = TGS_SECURITY_ULTRASAFE)
+/world/proc/TgsNew(datum/tgs_event_handler/event_handler, minimum_required_security_level = TGS_SECURITY_ULTRASAFE, datum/tgs_http_handler/http_handler)
 	return
 
 /**
- * Call this when your initializations are complete and your game is ready to play before any player interactions happen.
+ * Consumers MUST call this when world initializations are complete and the game is ready to play before any player interactions happen.
  *
  * This may use [/world/var/sleep_offline] to make this happen so ensure no changes are made to it while this call is running.
  * Afterwards, consider explicitly setting it to what you want to avoid this BYOND bug: http://www.byond.com/forum/post/2575184
@@ -170,12 +172,10 @@
 /world/proc/TgsInitializationComplete()
 	return
 
-/// Put this at the start of [/world/proc/Topic].
+/// Consumers MUST run this macro at the start of [/world/proc/Topic].
 #define TGS_TOPIC var/tgs_topic_return = TgsTopic(args[1]); if(tgs_topic_return) return tgs_topic_return
 
-/**
- * Call this as late as possible in [world/proc/Reboot] (BEFORE ..()).
- */
+/// Consumers MUST call this as late as possible in [world/proc/Reboot] (BEFORE ..()).
 /world/proc/TgsReboot()
 	return
 
@@ -269,7 +269,7 @@
 	/// The [/datum/tgs_chat_channel] the user was from.
 	var/datum/tgs_chat_channel/channel
 
-/// User definable handler for TGS events.
+/// User definable handler for TGS events This abstract version SHOULD be overridden to be used.
 /datum/tgs_event_handler
 	/// If the handler receieves [TGS_EVENT_HEALTH_CHECK] events.
 	var/receive_health_checks = FALSE
@@ -283,7 +283,41 @@
 	set waitfor = FALSE
 	return
 
-/// User definable chat command.
+/// User definable handler for HTTP calls. This abstract version MUST be overridden to be used.
+/datum/tgs_http_handler
+
+/**
+ * User definable callback for executing HTTP GET requests.
+ * MUST perform BYOND sleeps while the request is in flight.
+ * MUST return a [/datum/tgs_http_result].
+ * SHOULD log its own errors
+ *
+ * url - The full URL to execute the GET request for including query parameters.
+ */
+/datum/tgs_http_handler/proc/PerformGet(url)
+	CRASH("[type]/PerformGet not implemented!")
+
+/// Result of a [/datum/tgs_http_handler] call. MUST NOT be overridden.
+/datum/tgs_http_result
+	/// HTTP response as text
+	var/response_text
+	/// Boolean request success flag. Set for any 2XX response code.
+	var/success
+
+/**
+ * Create a [/datum/tgs_http_result].
+ *
+ * * response_text - HTTP response as text. Must be provided in New().
+ * * success - Boolean request success flag. Set for any 2XX response code. Must be provided in New().
+ */
+/datum/tgs_http_result/New(response_text, success)
+	if(response_text && !istext(response_text))
+		CRASH("response_text was not text!")
+
+	src.response_text = response_text
+	src.success = success
+
+/// User definable chat command. This abstract version MUST be overridden to be used.
 /datum/tgs_chat_command
 	/// The string to trigger this command on a chat bot. e.g `@bot name ...` or `!tgs name ...`.
 	var/name = ""
@@ -296,21 +330,27 @@
 
 /**
  * Process command activation. Should return a [/datum/tgs_message_content] to respond to the issuer with.
+ * MUST be implemented
  *
- * sender - The [/datum/tgs_chat_user] who issued the command.
- * params - The trimmed string following the command `/datum/tgs_chat_command/var/name].
+ * * sender - The [/datum/tgs_chat_user] who issued the command.
+ * * params - The trimmed string following the command `/datum/tgs_chat_command/var/name].
  */
 /datum/tgs_chat_command/proc/Run(datum/tgs_chat_user/sender, params)
 	CRASH("[type] has no implementation for Run()")
 
-/// User definable chat message.
+/// User definable chat message. MUST NOT be overridden.
 /datum/tgs_message_content
-	/// The tring content of the message. Must be provided in New().
+	/// The string content of the message. Must be provided in New().
 	var/text
 
 	/// The [/datum/tgs_chat_embed] to embed in the message. Not supported on all chat providers.
 	var/datum/tgs_chat_embed/structure/embed
 
+/**
+ * Create a [/datum/tgs_message_content].
+ *
+ * * text - The string content of the message.
+ */
 /datum/tgs_message_content/New(text)
 	..()
 	if(!istext(text))
@@ -319,7 +359,7 @@
 
 	src.text = text
 
-/// User definable chat embed. Currently mirrors Discord chat embeds. See https://discord.com/developers/docs/resources/channel#embed-object-embed-structure for details.
+/// User definable chat embed. Currently mirrors Discord chat embeds. See https://discord.com/developers/docs/resources/message#embed-object for details.
 /datum/tgs_chat_embed/structure
 	var/title
 	var/description
@@ -331,13 +371,13 @@
 	/// Colour must be #AARRGGBB or #RRGGBB hex string.
 	var/colour
 
-	/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-image-structure for details.
+	/// See https://discord.com/developers/docs/resources/message#embed-object-embed-image-structure for details.
 	var/datum/tgs_chat_embed/media/image
 
-	/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-thumbnail-structure for details.
+	/// See https://discord.com/developers/docs/resources/message#embed-object-embed-thumbnail-structure for details.
 	var/datum/tgs_chat_embed/media/thumbnail
 
-	/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-image-structure for details.
+	/// See https://discord.com/developers/docs/resources/message#embed-object-embed-video-structure for details.
 	var/datum/tgs_chat_embed/media/video
 
 	var/datum/tgs_chat_embed/footer/footer
@@ -346,58 +386,64 @@
 
 	var/list/datum/tgs_chat_embed/field/fields
 
-/// Common datum for similar discord embed medias.
+/// Common datum for similar Discord embed medias.
 /datum/tgs_chat_embed/media
 	/// Must be set in New().
 	var/url
 	var/width
 	var/height
 	var/proxy_url
 
+/// Create a [/datum/tgs_chat_embed].
 /datum/tgs_chat_embed/media/New(url)
 	..()
 	if(!istext(url))
 		CRASH("[/datum/tgs_chat_embed/media] created with no url!")
 
 	src.url = url
 
-/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-footer-structure for details.
+/// See https://discord.com/developers/docs/resources/message#embed-object-embed-footer-structure for details.
 /datum/tgs_chat_embed/footer
 	/// Must be set in New().
 	var/text
 	var/icon_url
 	var/proxy_icon_url
 
+/// Create a [/datum/tgs_chat_embed/footer].
 /datum/tgs_chat_embed/footer/New(text)
 	..()
 	if(!istext(text))
 		CRASH("[/datum/tgs_chat_embed/footer] created with no text!")
 
 	src.text = text
 
-/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-provider-structure for details.
+/// See https://discord.com/developers/docs/resources/message#embed-object-embed-provider-structure for details.
 /datum/tgs_chat_embed/provider
 	var/name
 	var/url
 
-/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-author-structure for details. Must have name set in New().
+/// See https://discord.com/developers/docs/resources/message#embed-object-embed-author-structure for details. Must have name set in New().
 /datum/tgs_chat_embed/provider/author
 	var/icon_url
 	var/proxy_icon_url
 
+/// Create a [/datum/tgs_chat_embed/footer].
 /datum/tgs_chat_embed/provider/author/New(name)
 	..()
 	if(!istext(name))
 		CRASH("[/datum/tgs_chat_embed/provider/author] created with no name!")
 
 	src.name = name
 
-/// See https://discord.com/developers/docs/resources/channel#embed-object-embed-field-structure for details. Must have name and value set in New().
+/// See https://discord.com/developers/docs/resources/message#embed-object-embed-field-structure for details.
 /datum/tgs_chat_embed/field
+	/// Must be set in New().
 	var/name
+	/// Must be set in New().
 	var/value
 	var/is_inline
 
+/// Create a [/datum/tgs_chat_embed/field].
 /datum/tgs_chat_embed/field/New(name, value)
 	..()
 	if(!istext(name))

code/modules/tgs/README.md

@@ -1,6 +1,6 @@
 # DMAPI Internals
 
-This folder should be placed on it's own inside a codebase that wishes to use the TGS DMAPI. Warranty void if modified.
+This folder should be placed on its own inside a codebase that wishes to use the TGS DMAPI. Warranty void if modified.
 
 - [includes.dm](./includes.dm) is the file that should be included by DM code, it handles including the rest.
 - The [core](./core) folder includes all code not directly part of any API version.

code/modules/tgs/core/README.md

@@ -3,7 +3,7 @@
 This folder contains all DMAPI code not directly involved in an API.
 
 - [_definitions.dm](./definitions.dm) contains defines needed across DMAPI internals.
+- [byond_world_export.dm](./byond_world_export.dm) contains the default `/datum/tgs_http_handler` implementation which uses `world.Export()`.
 - [core.dm](./core.dm) contains the implementations of the `/world/proc/TgsXXX()` procs. Many map directly to the `/datum/tgs_api` functions. It also contains the /datum selection and setup code.
 - [datum.dm](./datum.dm) contains the `/datum/tgs_api` declarations that all APIs must implement.
 - [tgs_version.dm](./tgs_version.dm) contains the `/datum/tgs_version` definition
-- 

code/modules/tgs/core/byond_world_export.dm

@@ -0,0 +1,22 @@
+/datum/tgs_http_handler/byond_world_export
+
+/datum/tgs_http_handler/byond_world_export/PerformGet(url)
+	// This is an infinite sleep until we get a response
+	var/export_response = world.Export(url)
+	TGS_DEBUG_LOG("byond_world_export: Export complete")
+
+	if(!export_response)
+		TGS_ERROR_LOG("byond_world_export: Failed request: [url]")
+		return new /datum/tgs_http_result(null, FALSE)
+
+	var/content = export_response["CONTENT"]
+	if(!content)
+		TGS_ERROR_LOG("byond_world_export: Failed request, missing content!")
+		return new /datum/tgs_http_result(null, FALSE)
+
+	var/response_json = TGS_FILE2TEXT_NATIVE(content)
+	if(!response_json)
+		TGS_ERROR_LOG("byond_world_export: Failed request, failed to load content!")
+		return new /datum/tgs_http_result(null, FALSE)
+
+	return new /datum/tgs_http_result(response_json, TRUE)

code/modules/tgs/core/core.dm

@@ -1,4 +1,4 @@
-/world/TgsNew(datum/tgs_event_handler/event_handler, minimum_required_security_level = TGS_SECURITY_ULTRASAFE)
+/world/TgsNew(datum/tgs_event_handler/event_handler, minimum_required_security_level = TGS_SECURITY_ULTRASAFE, datum/tgs_http_handler/http_handler = null)
 	var/current_api = TGS_READ_GLOBAL(tgs)
 	if(current_api)
 		TGS_ERROR_LOG("API datum already set (\ref[current_api] ([current_api]))! Was TgsNew() called more than once?")
@@ -55,7 +55,10 @@
 		TGS_ERROR_LOG("Invalid parameter for event_handler: [event_handler]")
 		event_handler = null
 
-	var/datum/tgs_api/new_api = new api_datum(event_handler, version)
+	if(!http_handler)
+		http_handler = new /datum/tgs_http_handler/byond_world_export
+
+	var/datum/tgs_api/new_api = new api_datum(event_handler, version, http_handler)
 
 	TGS_WRITE_GLOBAL(tgs, new_api)
 

code/modules/tgs/core/datum.dm

@@ -6,7 +6,7 @@ TGS_DEFINE_AND_SET_GLOBAL(tgs, null)
 
 	var/list/warned_deprecated_command_runs
 
-/datum/tgs_api/New(datum/tgs_event_handler/event_handler, datum/tgs_version/version)
+/datum/tgs_api/New(datum/tgs_event_handler/event_handler, datum/tgs_version/version, datum/tgs_http_handler/http_handler)
 	..()
 	src.event_handler = event_handler
 	src.version = version

code/modules/tgs/includes.dm

@@ -1,4 +1,5 @@
 #include "core\_definitions.dm"
+#include "core\byond_world_export.dm"
 #include "core\core.dm"
 #include "core\datum.dm"
 #include "core\tgs_version.dm"

code/modules/tgs/v5/api.dm

@@ -31,9 +31,12 @@
 
 	var/detached = FALSE
 
-/datum/tgs_api/v5/New()
+	var/datum/tgs_http_handler/http_handler
+
+/datum/tgs_api/v5/New(datum/tgs_event_handler/event_handler, datum/tgs_version/version, datum/tgs_http_handler/http_handler)
 	. = ..()
 	interop_version = version
+	src.http_handler = http_handler
 	TGS_DEBUG_LOG("V5 API created: [json_encode(args)]")
 
 /datum/tgs_api/v5/ApiVersion()
@@ -50,7 +53,9 @@
 	version = null // we want this to be the TGS version, not the interop version
 
 	// sleep once to prevent an issue where world.Export on the first tick can hang indefinitely
+	TGS_DEBUG_LOG("Starting Export bug prevention sleep tick. time:[world.time] sleep_offline:[world.sleep_offline]")
 	sleep(world.tick_lag)
+	TGS_DEBUG_LOG("Export bug prevention sleep complete")
 
 	var/list/bridge_response = Bridge(DMAPI5_BRIDGE_COMMAND_STARTUP, list(DMAPI5_BRIDGE_PARAMETER_MINIMUM_SECURITY_LEVEL = minimum_required_security_level, DMAPI5_BRIDGE_PARAMETER_VERSION = api_version.raw_parameter, DMAPI5_PARAMETER_CUSTOM_COMMANDS = ListCustomCommands(), DMAPI5_PARAMETER_TOPIC_PORT = GetTopicPort()))
 	if(!istype(bridge_response))

code/modules/tgs/v5/bridge.dm

@@ -78,27 +78,24 @@
 	WaitForReattach(FALSE)
 
 	TGS_DEBUG_LOG("Bridge request start")
-	// This is an infinite sleep until we get a response
-	var/export_response = world.Export(bridge_request)
+	var/datum/tgs_http_result/result = http_handler.PerformGet(bridge_request)
 	TGS_DEBUG_LOG("Bridge request complete")
 
-	if(!export_response)
-		TGS_ERROR_LOG("Failed bridge request: [bridge_request]")
+	if(isnull(result))
+		TGS_ERROR_LOG("Failed bridge request, handler returned null!")
 		return
 
-	var/content = export_response["CONTENT"]
-	if(!content)
-		TGS_ERROR_LOG("Failed bridge request, missing content!")
+	if(!istype(result) || result.type != /datum/tgs_http_result)
+		TGS_ERROR_LOG("Failed bridge request, handler returned non-[/datum/tgs_http_result]!")
 		return
 
-	var/response_json = TGS_FILE2TEXT_NATIVE(content)
-	if(!response_json)
-		TGS_ERROR_LOG("Failed bridge request, failed to load content!")
+	if(!result.success)
+		TGS_DEBUG_LOG("Failed bridge request, HTTP request failed!")
 		return
 
-	var/list/bridge_response = json_decode(response_json)
+	var/list/bridge_response = json_decode(result.response_text)
 	if(!bridge_response)
-		TGS_ERROR_LOG("Failed bridge request, bad json: [response_json]")
+		TGS_ERROR_LOG("Failed bridge request, bad json: [result.response_text]")
 		return
 
 	var/error = bridge_response[DMAPI5_RESPONSE_ERROR_MESSAGE]