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bp-links-embed.php
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bp-links-embed.php
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<?php
/**
* Link Embedded Media Functions
*/
// load embed service classes
require_once 'bp-links-embed-classes.php';
require_once 'bp-links-embed-services.php';
/************************************************
* General Functions
*/
function bp_links_embed_upload_from_url( $url ) {
// build up our $files array.
// its the same format as returned by wp_handle_upload()
$files['file'] = null;
$files['url'] = null;
$files['type'] = null;
$files['error'] = 'File upload failed!';
// get path from URL
$url_parts = parse_url( $url );
if ( $url_parts['path'] ) {
// nice, have the path
$url_path = $url_parts['path'];
// get path info
$path_parts = pathinfo( $url_parts['path'] );
if ( $path_parts['basename'] && $path_parts['extension'] ) {
$file_name = $path_parts['basename'];
$file_extension = $path_parts['extension'];
} else {
// error
return $files;
}
} else {
// error
return $files;
}
// grab remote file
$response = wp_remote_get( $url );
// only use data from a successful request
if ( 200 == wp_remote_retrieve_response_code( $response ) ) {
$remote_file = wp_remote_retrieve_body( $response );
} else {
// assume any code besides 200 is an error
return $files;
}
// make sure we got it
if ( $remote_file ) {
// get upload dir info
add_filter( 'upload_dir', 'bp_links_avatar_upload_dir', 10, 0 );
$upload_dir = wp_upload_dir();
// make sure upload dir exists and is writable
if ( !is_writable( $upload_dir['path'] ) ) {
$files['error'] = 'Upload dir is not writable!';
return $files;
}
// set local file path and url path
$files['file'] = sprintf( '%s/remote_upload_%s.%s', $upload_dir['path'], md5( $file_name ), $file_extension );
$files['url'] = sprintf( '%s/%s', $upload_dir['url'], $file_name );
// try to write the file
$bytes_written = file_put_contents( $files['file'], $remote_file );
if ( $bytes_written ) {
// get mime type
$mimes = array(
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png'
);
$wp_filetype = wp_check_filetype( $files['file'], $mimes );
if ( $wp_filetype['type'] ) {
$files['type'] = $wp_filetype['type'];
$files['error'] = false;
} else {
$files['error'] = 'Only JPEG, GIF and PNG files are supported!';
}
}
}
return $files;
}
function bp_links_embed_download_avatar( $url ) {
global $bp;
require_once( ABSPATH . '/wp-admin/includes/image.php' );
// handle empty avatar admin property
if ( false === isset( $bp->avatar_admin ) ) {
$bp->avatar_admin = new stdClass();
}
$bp->avatar_admin->original = bp_links_embed_upload_from_url( $url );
// Move the file to the correct upload location.
if ( !empty( $bp->avatar_admin->original['error'] ) ) {
bp_core_add_message( sprintf( '%1$s %2$s', __( 'Upload Failed! Error was:', 'buddypress-links' ), $bp->avatar_admin->original['error'] ), 'error' );
return false;
}
// Resize the image down to something manageable and then delete the original
if ( getimagesize( $bp->avatar_admin->original['file'] ) > BP_AVATAR_ORIGINAL_MAX_WIDTH ) {
$bp->avatar_admin->resized = wp_create_thumbnail( $bp->avatar_admin->original['file'], BP_AVATAR_ORIGINAL_MAX_WIDTH );
}
$bp->avatar_admin->image = new stdClass;
// We only want to handle one image after resize.
if ( empty( $bp->avatar_admin->resized ) )
$bp->avatar_admin->image->dir = $bp->avatar_admin->original['file'];
else {
$bp->avatar_admin->image->dir = $bp->avatar_admin->resized;
@unlink( $bp->avatar_admin->original['file'] );
}
/* Set the url value for the image */
$bp->avatar_admin->image->url =
str_replace(
bp_core_avatar_upload_path(),
bp_core_avatar_url(),
$bp->avatar_admin->image->dir
);
return true;
}
function bp_links_embed_handle_upload( BP_Links_Link $link, $embed_code ) {
if ( !empty( $embed_code ) ) {
try {
// try to locate a service to handle this html code
$service = BP_Links_Embed::FromHtml( $embed_code );
// did we find a service?
if ( $service instanceof BP_Links_Embed_Service ) {
// download image for avatar creation, attach embed service
if ( bp_links_embed_download_avatar( $service->image_url() ) && $link->embed_attach( $service ) ) {
// set status to partial and save link
if ( $link->embed_status_set_partial(true) ) {
return true;
} else {
// failed to save link
bp_core_add_message( sprintf( '%s %s', __( 'There was an error saving link avatar.', 'buddypress-links' ), __( 'Please try again.', 'buddypress-links' ) ), 'error' );
}
} else {
// failed to download remote image
bp_core_add_message( sprintf( '%s %s', __( 'Downloading image from remote website failed.', 'buddypress-links' ), __( 'Please try again.', 'buddypress-links' ) ), 'error' );
}
} else {
// no service could handle the html code
bp_core_add_message( __( 'The embedding code you entered was not recognized.', 'buddypress-links' ), 'error' );
}
} catch ( BP_Links_Embed_User_Exception $e ) {
bp_core_add_message( $e->getMessage(), 'error' );
} catch ( BP_Links_Embed_Fatal_Exception $e ) {
throw ($e);
}
}
return false;
}
function bp_links_embed_handle_crop( BP_Links_Link $link ) {
$link->embed_status_set_enabled( true );
}
/************************************************
* Template Helper Functions
*/
function bp_link_embed_is_enabled() {
global $links_template;
return $links_template->link->embed_status_enabled();
}
function bp_link_embed_has_html() {
global $links_template;
if ( true === bp_link_embed_is_enabled() ) {
return ( $links_template->link->embed() instanceof BP_Links_Embed_Has_Html );
}
return false;
}
function bp_link_embed_html() {
echo bp_get_link_embed_html();
}
function bp_get_link_embed_html() {
global $links_template;
if ( true === bp_link_embed_is_enabled() ) {
return $links_template->link->embed()->html();
} else {
return null;
}
}
/**********************************************************
* Rich Media URL Template Helper Functions
*/
function bp_links_auto_embed_panel( $embed_service = null, $display = false ) {
// inline style for display (or not)
$attr_display = ( $display === true ) ? null : ' style="display: none;"';
// render the markup ?>
<span id="link-url-embed-clear"<?php echo $attr_display ?>>
<a href="#clear"><?php _e( 'Clear', 'buddypress-links' ); ?></a>
</span>
<input type="submit" id="link-url-embed-fetch" name="link-url-embed-fetch" value="<?php _e( 'Fetch Page Details', 'buddypress-links' ) ?>">
<div id="link-url-embed" <?php echo $attr_display ?>>
<?php bp_links_auto_embed_panel_content( $embed_service ); ?>
</div><?php
// spit out nonce field
wp_nonce_field( 'bp_links_save_link-auto-embed', '_wpnonce-link-auto-embed' );
}
function bp_links_auto_embed_panel_content( $embed_service = null ) {
if ( !$embed_service instanceof BP_Links_Embed_Service ) {
return;
}
// no selected image index by default
$image_idx = null;
$image_selected_idx = null;
$image_selection_count = 0;
$image_selection_diplay = null;
// multiple images to select from?
if ( $embed_service instanceof BP_Links_Embed_Has_Selectable_Image && count( $embed_service->image_selection() ) >= 1 ) {
// body of javascript array
$js_array = array();
// user selected image index
$image_idx = ( isset( $_POST['link-url-embed-thidx'] ) ) ? $_POST['link-url-embed-thidx'] : $embed_service->image_get_selected();
// selected image index from data storage
$image_selected_idx = $embed_service->image_get_selected();
// count of images in selection
$image_selection_count = count( $embed_service->image_selection() );
foreach( $embed_service->image_selection() as $idx => $url ) {
if ( is_int( $idx ) ) {
$js_array[] = sprintf( '[%d,"%s"]', $idx, $url );
} else {
$js_array[] = sprintf( '["%s","%s"]', $idx, $url );
}
}
// js syntax strings
$image_js_img = join( ",", $js_array );
$image_js_img_idx = ( is_null( $image_idx ) ) ? 'null' : $image_idx;
// render js element ?>
<script type="text/javascript">
jQuery(document).ready( function() {
jQuery("div#link-url-embed-thpick").data("images", [ <?php echo $image_js_img ?> ] );
jQuery("div#link-url-embed-thpick").data("images_idx", <?php echo $image_js_img_idx ?> );
return;
});
</script><?php
} else {
// don't display the thumb picker
$image_selection_diplay = ' style="display: none;"';
}
// determine output thumb url
$service_thumb_url = $embed_service->image_thumb_url();
if ( !empty( $service_thumb_url ) && bp_links_is_url_valid( $service_thumb_url ) ) {
$thumb_url = $service_thumb_url;
} else {
// service or owner chose not to have a thumb
$thumb_url = bp_links_default_avatar_uri();
}
// checkiness vars
$checked_edit = ( !empty( $_POST['link-url-embed-edit-text'] ) ) ? ' checked="checked"' : null;
$checked_thumb = ( is_null( $image_idx ) ) ? ' checked="checked"' : null;
// render the html ?>
<label style="clear: right;">
<?php _e( 'Rich Media Detected:', 'buddypress-links' ) ?>
<?php echo esc_html( $embed_service->service_name() ) ?>
</label>
<div id="link-url-embed-content">
<div id="link-url-embed-avatar">
<img src="<?php echo esc_url( $thumb_url ) ?>" class="avatar-current" alt="<?php echo esc_attr( $embed_service->title() ) ?>">
<div id="link-url-embed-thpick"<?php echo $image_selection_diplay ?>>
<a href="#thprev" id="thprev"><</a>
<span id="thcurrent"><?php echo $image_idx + 1 ?></span>/<span id="thcount"><?php echo $image_selection_count ?></span> <?php _e( 'Thumbs', 'buddypress-links' ) ?>
<a href="#thnext" id="thnext">></a>
<div id="thnone">
<input type="checkbox" name="link-url-embed-thskip" id="link-url-embed-thskip" value="1"<?php echo $checked_thumb ?>> <?php _e( 'No Thumbnail', 'buddypress-links' ) ?>
</div>
</div>
</div>
<a href="<?php echo esc_url( $embed_service->url() ) ?>" target="_blank"><?php echo esc_html( $embed_service->title() ) ?></a>
<p><?php echo esc_html( $embed_service->description() ) ?></p>
<div id="link-url-embed-options">
<label for="link-url-embed-edit-text">
<input type="checkbox" name="link-url-embed-edit-text" id="link-url-embed-edit-text" value="1"<?php echo $checked_edit ?>>
<?php _e( 'Edit Name and Description', 'buddypress-links' ) ?>
</label>
<input type="hidden" name="link-url-embed-data" id="link-url-embed-data" value="<?php echo $embed_service->export_data() ?>">
<input type="hidden" name="link-url-embed-thidx" id="link-url-embed-thidx" value="<?php echo esc_attr( $image_selected_idx ) ?>">
</div>
</div><?php
}
function bp_links_auto_embed_panel_from_data( $embed_data = null ) {
// page fetching enabled?
if ( true === BP_LINKS_CREATE_PAGE_FETCH ) {
// yep, spit out embed panel if applicable
if ( !empty( $embed_data ) ) {
$service = BP_Links_Embed::LoadService( $embed_data );
bp_links_auto_embed_panel( $service, true );
} else {
bp_links_auto_embed_panel();
}
}
}