1 files changed, 176 insertions, 0 deletions
diff --git a/bootstrap/comments/backend/classes/datafiles.php b/bootstrap/comments/backend/classes/datafiles.php
new file mode 100644
index 0000000..7e2eb1e
--- /dev/null
+++ b/bootstrap/comments/backend/classes/datafiles.php
@@ -0,0 +1,176 @@
+<?php namespace HashOver;
+
+// Copyright (C) 2018 Jacob Barkdull
+// This file is part of HashOver.
+//
+// HashOver is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// HashOver is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with HashOver.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class DataFiles
+{
+	public $setup;
+
+	public function __construct (Setup $setup)
+	{
+		$this->setup = $setup;
+	}
+
+	public function readJSON ($file)
+	{
+		// Read JSON comment file
+		$data = @file_get_contents ($file);
+
+		// Parse JSON comment file
+		$json = @json_decode ($data, true);
+
+		// Check for JSON parse error
+		if ($json !== null) {
+			return $json;
+		}
+
+		return false;
+	}
+
+	public function saveJSON ($file, array $contents = array ())
+	{
+		// Check if we have pretty print support
+		if (defined ('JSON_PRETTY_PRINT')) {
+			// If so, encode comment to JSON with pretty print
+			$json = json_encode ($contents, JSON_PRETTY_PRINT);
+
+			// And convert spaces indentation to tabs
+			$json = str_replace ('    ', "\t", $json);
+		} else {
+			// If not, encode comment to JSON normally
+			$json = json_encode ($contents);
+		}
+
+		// Convert line endings to OS specific style
+		$json = $this->osLineEndings ($json);
+
+		// Save the JSON data to the comment file
+		if (@file_put_contents ($file, $json)) {
+			return true;
+		}
+
+		return false;
+	}
+
+	// Gets the appropriate thread directory path
+	protected function getMetaRoot ($thread)
+	{
+		// Using the automatically setup thread if told to
+		if ($thread === 'auto') {
+			return $this->setup->threadDirectory;
+		}
+
+		// Otherwise construct thread directory path
+		return $this->setup->pagesDirectory . '/' . $thread;
+	}
+
+	// Gets the appropriate metadata directory path
+	protected function getMetaDirectory ($thread, $global)
+	{
+		// Check if we're getting metadata for a specific thread
+		if ($global !== true) {
+			// If so, use the thread's path
+			$directory = $this->getMetaRoot ($thread) . '/metadata';
+		} else {
+			// If not, use the global metadata path
+			$directory = $this->setup->commentsDirectory . '/metadata';
+		}
+
+		// Return metadata directory path
+		return $directory;
+	}
+
+	// Gets the appropriate metadata file path
+	protected function getMetaPath ($name, $thread, $global)
+	{
+		// Metadata directory path
+		$directory = $this->getMetaDirectory ($thread, $global);
+
+		// Metadata file path
+		$path = $directory . '/' . $name . '.json';
+
+		// Return metadata file path
+		return $path;
+	}
+
+	// Creates metadata directory if it doesn't exist
+	protected function setupMeta ($thread, $global)
+	{
+		// Metadata directory path
+		$metadata = $this->getMetaDirectory ($thread, $global);
+
+		// Check if metadata root directory exists
+		if (file_exists ($this->getMetaRoot ($thread))) {
+			// If so, attempt to create metadata directory
+			if (file_exists ($metadata) or @mkdir ($metadata, 0755, true)) {
+				// If successful, set permissions to 0755 again
+				@chmod ($metadata, 0755);
+				return true;
+			}
+
+			// Otherwise throw exception
+			throw new \Exception (sprintf (
+				'Failed to create metadata directory at: "%s"!',
+				$metadata
+			));
+		}
+	}
+
+	// Read and return specific metadata from JSON file
+	public function readMeta ($name, $thread = 'auto', $global = false)
+	{
+		// Metadata JSON file path
+		$metadata_path = $this->getMetaPath ($name, $thread, $global);
+
+		// Return metadata if read successfully
+		return $this->readJSON ($metadata_path);
+	}
+
+	// Save metadata to specific metadata JSON file
+	public function saveMeta ($name, array $data, $thread = 'auto', $global = false)
+	{
+		// Metadata JSON file path
+		$metadata_path = $this->getMetaPath ($name, $thread, $global);
+
+		// Create metadata directory if it doesn't exist
+		$this->setupMeta ($thread, $global);
+
+		// Check if metadata root directory exists
+		if (file_exists ($this->getMetaRoot ($thread))) {
+			// If so, attempt to save data to metadata JSON file
+			if ($this->saveJSON ($metadata_path, $data) === false) {
+				// Throw exception on failure
+				throw new \Exception ('Failed to save metadata!');
+			}
+		}
+
+		return true;
+	}
+
+	// Convert a string to OS-specific line endings
+	public function osLineEndings ($string)
+	{
+		// Different line ending styles
+		$eol_styles = array ("\r\n", "\r", "\n");
+
+		// Actual consersion
+		$string = str_replace ($eol_styles, PHP_EOL, $string);
+
+		return $string;
+	}
+}