core: Begin to split some of the largest modules into smaller pieces, starting with HTTP endpoints.

src/httpd.save.c

@@ -0,0 +1,181 @@
+#include "httpd.js.h"
+
+#include "http.h"
+#include "log.h"
+#include "mem.h"
+#include "ssb.db.h"
+#include "ssb.h"
+#include "task.h"
+#include "util.js.h"
+
+typedef struct _save_t
+{
+	tf_http_request_t* request;
+	int response;
+	char blob_id[k_blob_id_len];
+} save_t;
+
+static void _httpd_endpoint_save_work(tf_ssb_t* ssb, void* user_data)
+{
+	save_t* save = user_data;
+	tf_http_request_t* request = save->request;
+	const char* session = tf_http_get_cookie(tf_http_request_get_header(request, "cookie"), "session");
+
+	JSMallocFunctions funcs = { 0 };
+	tf_get_js_malloc_functions(&funcs);
+	JSRuntime* runtime = JS_NewRuntime2(&funcs, NULL);
+	JSContext* context = JS_NewContext(runtime);
+
+	JSValue jwt = tf_httpd_authenticate_jwt(ssb, context, session);
+	JSValue user = JS_GetPropertyStr(context, jwt, "name");
+	const char* user_string = JS_ToCString(context, user);
+
+	if (user_string && tf_httpd_is_name_valid(user_string))
+	{
+		tf_httpd_user_app_t* user_app = tf_httpd_parse_user_app_from_path(request->path, "/save");
+		if (user_app)
+		{
+			if (strcmp(user_string, user_app->user) == 0 || (strcmp(user_app->user, "core") == 0 && tf_ssb_db_user_has_permission(ssb, NULL, user_string, "administration")))
+			{
+				size_t path_length = strlen("path:") + strlen(user_app->app) + 1;
+				char* app_path = tf_malloc(path_length);
+				snprintf(app_path, path_length, "path:%s", user_app->app);
+
+				const char* old_blob_id = tf_ssb_db_get_property(ssb, user_app->user, app_path);
+
+				JSValue new_app = JS_ParseJSON(context, request->body, request->content_length, NULL);
+				tf_util_report_error(context, new_app);
+				if (JS_IsObject(new_app))
+				{
+					uint8_t* old_blob = NULL;
+					size_t old_blob_size = 0;
+					if (tf_ssb_db_blob_get(ssb, old_blob_id, &old_blob, &old_blob_size))
+					{
+						JSValue old_app = JS_ParseJSON(context, (const char*)old_blob, old_blob_size, NULL);
+						if (JS_IsObject(old_app))
+						{
+							JSAtom previous = JS_NewAtom(context, "previous");
+							JS_DeleteProperty(context, old_app, previous, 0);
+							JS_DeleteProperty(context, new_app, previous, 0);
+
+							JSValue old_app_json = JS_JSONStringify(context, old_app, JS_NULL, JS_NULL);
+							JSValue new_app_json = JS_JSONStringify(context, new_app, JS_NULL, JS_NULL);
+							const char* old_app_str = JS_ToCString(context, old_app_json);
+							const char* new_app_str = JS_ToCString(context, new_app_json);
+
+							if (old_app_str && new_app_str && strcmp(old_app_str, new_app_str) == 0)
+							{
+								snprintf(save->blob_id, sizeof(save->blob_id), "/%s", old_blob_id);
+								save->response = 200;
+							}
+
+							JS_FreeCString(context, old_app_str);
+							JS_FreeCString(context, new_app_str);
+							JS_FreeValue(context, old_app_json);
+							JS_FreeValue(context, new_app_json);
+							JS_FreeAtom(context, previous);
+						}
+						JS_FreeValue(context, old_app);
+						tf_free(old_blob);
+					}
+
+					if (!save->response)
+					{
+						if (old_blob_id)
+						{
+							JS_SetPropertyStr(context, new_app, "previous", JS_NewString(context, old_blob_id));
+						}
+						JSValue new_app_json = JS_JSONStringify(context, new_app, JS_NULL, JS_NULL);
+						size_t new_app_length = 0;
+						const char* new_app_str = JS_ToCStringLen(context, &new_app_length, new_app_json);
+
+						char blob_id[k_blob_id_len] = { 0 };
+						if (tf_ssb_db_blob_store(ssb, (const uint8_t*)new_app_str, new_app_length, blob_id, sizeof(blob_id), NULL) &&
+							tf_ssb_db_set_property(ssb, user_app->user, app_path, blob_id))
+						{
+							tf_ssb_db_add_value_to_array_property(ssb, user_app->user, "apps", user_app->app);
+							tf_string_set(save->blob_id, sizeof(save->blob_id), blob_id);
+							save->response = 200;
+						}
+						else
+						{
+							tf_printf("Blob store or property set failed.\n");
+							save->response = 500;
+						}
+
+						JS_FreeCString(context, new_app_str);
+						JS_FreeValue(context, new_app_json);
+					}
+				}
+				else
+				{
+					save->response = 400;
+				}
+				JS_FreeValue(context, new_app);
+
+				tf_free(app_path);
+				tf_free((void*)old_blob_id);
+			}
+			else
+			{
+				save->response = 403;
+			}
+			tf_free(user_app);
+		}
+		else if (strcmp(request->path, "/save") == 0)
+		{
+			char blob_id[k_blob_id_len] = { 0 };
+			if (tf_ssb_db_blob_store(ssb, request->body, request->content_length, blob_id, sizeof(blob_id), NULL))
+			{
+				tf_string_set(save->blob_id, sizeof(save->blob_id), blob_id);
+				save->response = 200;
+			}
+			else
+			{
+				tf_printf("Blob store failed.\n");
+				save->response = 500;
+			}
+		}
+		else
+		{
+			save->response = 400;
+		}
+	}
+	else
+	{
+		save->response = 401;
+	}
+
+	tf_free((void*)session);
+	JS_FreeCString(context, user_string);
+	JS_FreeValue(context, user);
+	JS_FreeValue(context, jwt);
+	JS_FreeContext(context);
+	JS_FreeRuntime(runtime);
+}
+
+static void _httpd_endpoint_save_after_work(tf_ssb_t* ssb, int status, void* user_data)
+{
+	save_t* save = user_data;
+	tf_http_request_t* request = save->request;
+	if (*save->blob_id)
+	{
+		char body[256] = "";
+		int length = snprintf(body, sizeof(body), "/%s", save->blob_id);
+		tf_http_respond(request, 200, NULL, 0, body, length);
+	}
+	tf_http_request_unref(request);
+	tf_free(save);
+}
+
+void tf_httpd_endpoint_save(tf_http_request_t* request)
+{
+	tf_http_request_ref(request);
+	tf_task_t* task = request->user_data;
+	tf_ssb_t* ssb = tf_task_get_ssb(task);
+	save_t* save = tf_malloc(sizeof(save_t));
+	*save = (save_t) {
+		.request = request,
+	};
+	tf_ssb_run_work(ssb, _httpd_endpoint_save_work, _httpd_endpoint_save_after_work, save);
+}