Export from withknown compatible with Ghost
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167 lines
4.3 KiB

<?php
require_once(dirname(__FILE__) . '/Idno/start.php');
include 'HTML-To-Markdown.php';
function init() {
$this->garray['data'] = array();
$this->garray['data']['posts'] = array();
$this->garray['data']['tags'] = array();
$this->garray['data']['posts_tags'] = array();
$this->garray['data']['users'] = array();
}
function populate_meta() {
$this->garray['meta'] = array(
'exported_on' => date( 'r' ),
'version' => '000',
);
}
function tags() {
$all_tags = get_tags();
if ( ! empty( $all_tags ) ) {
foreach ( $all_tags as $tag ) {
$this->garray['data']['tags'][] = array(
'id' => intval( $tag->term_id ),
'name' => $tag->name,
'slug' => $tag->slug,
'description' => $tag->description,
);
}
}
// cleanup
unset( $all_tags );
unset( $tag );
}
// TODO modifier ça pour Known !
// https://github.com/idno/Known/blob/master/Idno/Common/Entity.php
function posts() {
$posts = Idno\Common\Entity::getFromAll([], [], 99999);
$slug_number = 0;
$_post_tags = [];
foreach(posts as $post) {
global $post;
$posts->the_post();
$post->post_markdown = new HTML_To_Markdown( apply_filters( 'the_content', $post->post_content ) );
$tags = get_the_tags();
if ( ! empty( $tags ) ) {
foreach ( $tags as $tag ) {
$_post_tags[] = array(
'tag_id' => intval( $tag->term_id ),
'post_id' => intval( $post->ID )
);
}
}
$s = $this->map_status( $post->post_status );
$image_id = get_post_thumbnail_id( $post->ID );
if ( $image_id !== '' ) {
$image = wp_get_attachment_image_src( $image_id, 'full' );
}
$this->garray['data']['posts'][] = array(
//'id' => intval( $post->ID ),
'title' => substr( ( empty( $post->title ) ) ? '(no title)' : $post->post_title, 0, 150 ),
'slug' => substr( ( empty( $post->post_name ) ) ? 'temp-slug-' . $slug_number : $post->post_name, 0, 150 ),
'markdown' => $post->post_markdown->output(),
'html' => apply_filters( 'the_content', $post->post_content ),
'image' => ( $image_id ) ? $image[0] : null,
'featured' => 0,
'page' => ( $post->post_type === 'page' ) ? 1 : 0,
'status' => substr( $s, 0, 150 ),
'language' => substr( 'en_US', 0, 6 ),
'meta_title' => null,
'meta_description' => null,
'author_id' => $this->_safe_author_id( $post->post_author ),
'created_at' => $this->_get_json_date( $post->post_date ),
'created_by' => 1,
'updated_at' => $this->_get_json_date( $post->post_modified ),
'updated_by' => 1,
'published_at' => ($s !== 'draft') ? $this->_get_json_date( $post->post_date ) : '',
'published_by' => 1,
);
$slug_number += 1;
}
$this->garray['data']['posts_tags'] = $_post_tags;
// cleanup
unset( $posts_args );
unset( $posts );
unset( $slug_number );
unset( $_post_tags );
unset( $tags );
unset( $tag );
unset( $s );
}
function populate_data() {
if ( $this->garray !== null ) {
return;
}
$this->garray = array();
// preps the structure
init();
// attaches metadata
meta();
// attaches tags
tags();
// populates posts
posts();
}
/**
* Sends necessary headers and whatnot to allow to download file
* @return bin file
*/
public function download_file() {
// Ensure the user accessing the function actually has permission to do this
if ( ! current_user_can('export') ) {
wp_die( "<p>You are not allowed to do that.</p>", 'Permission error' );
}
$this->populate_data();
$upload_dir = wp_upload_dir();
$filedir = $upload_dir['path'];
$filename = 'wp2ghost_export_' . time() . '.json';
if ( ! is_writable( $filedir ) ) {
wp_die( "<p>Uploads directory is not writable, can't save the Ghost json file :/</p><p>Generated by the Ghost plugin version {$this->version}.</p>", 'Directory not writable' );
}
$handle = fopen( $filedir . '/' . $filename, 'w' );
$content = $this->get_json( $this->garray );
fwrite( $handle, $content );
fclose( $handle );
header( 'Content-Description: File Transfer' );
header( 'Content-Type: application/octet-stream' );
header( 'Content-Disposition: attachment; filename='.$filename );
header( 'Content-Transfer-Encoding: binary' );
header( 'Expires: 0' );
header( 'Cache-Control: must-revalidate' );
header( 'Pragma: public' );
header( 'Content-Length: ' . filesize( $filedir . '/' . $filename ) );
flush();
readfile( $filedir . '/' . $filename );
exit;
}