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<?php |
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/** |
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* Add Embed to Posts |
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* |
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* Functions to add embed code to posts |
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* |
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* @package Artiss-Code-Embed |
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*/ |
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|
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/** |
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* Add filter to add embed code |
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* |
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* Filter to add embed to any posts |
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* |
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* @since 1.5 |
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* |
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* @uses ace_get_embed_paras Get default options |
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* @uses ace_get_embed_code Get embed code from other posts |
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* |
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* @param string $content Post content without embedded code |
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* @return string Post content with embedded code |
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*/ |
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|
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function ace_filter( $content ) { |
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|
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global $post; |
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|
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// Set initial values |
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|
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$options = ace_get_embed_paras(); |
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$found_pos = strpos( $content, $options[ 'opening_ident' ] . $options[ 'keyword_ident' ], 0 ); |
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$prefix_len = strlen( $options[ 'opening_ident' ] . $options[ 'keyword_ident' ] ); |
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|
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// Loop around the post content looking for all requests for code embeds |
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|
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while ( $found_pos !== false ) { |
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|
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// Get the position of the closing identifier - ignore if one is not found |
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|
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$end_pos = strpos( $content, $options[ 'closing_ident' ], $found_pos + $prefix_len ); |
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if ( $end_pos !== false ) { |
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|
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// Extract the suffix |
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|
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$suffix_len = $end_pos - ( $found_pos + $prefix_len ); |
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if ( $suffix_len == 0 ) { |
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$suffix = ''; |
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} else { |
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$suffix = substr( $content, $found_pos + $prefix_len, $suffix_len ); |
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} |
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$full_suffix = $suffix; |
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|
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// Check for responsive part of suffix |
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|
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$responsive = false; |
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$max_width = false; |
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$res_pos = false; |
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if ( strlen( $suffix ) > 1 ) { $res_pos = strpos( $suffix, '_RES', 1 ); } |
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|
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if ( $res_pos !== false ) { |
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|
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// If responsive section found, check it's at the end of has an underscore afterwards |
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// Otherwise it may be part of something else |
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|
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if ( $res_pos == strlen( $suffix) - 4 ) { |
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$responsive = true; |
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} else { |
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if ( substr( $suffix, $res_pos+4, 1 ) == '_' ) { |
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$responsive = true; |
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$max_width = substr( $suffix, $res_pos + 5 ); |
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if ( !is_numeric( $max_width ) ) { $max_width = ''; } |
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} |
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} |
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|
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if ( $responsive ) { $suffix = substr( $suffix, 0, $res_pos ); } |
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} |
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|
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// Get the custom field data and replace in the post |
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|
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$search = $options[ 'opening_ident' ] . $options[ 'keyword_ident' ] . $suffix . $options[ 'closing_ident' ]; |
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|
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// Get the meta for the current post |
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|
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$post_meta = get_post_meta( $post -> ID, $options[ 'keyword_ident' ].$suffix, false ); |
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if ( isset( $post_meta[ 0 ] ) ) { |
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$html = $post_meta[ 0 ]; |
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} else { |
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// No meta found, so look for it elsewhere |
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$html = ace_get_embed_code( $options[ 'keyword_ident' ], $suffix ); |
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} |
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|
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// Build the string to search for |
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|
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$search = $options[ 'opening_ident' ] . $options[ 'keyword_ident' ] . $full_suffix . $options[ 'closing_ident' ]; |
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|
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// Build the string of code to replace with |
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|
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$replace = ace_generate_code( $html, 'Code Embed', $responsive, $max_width, $options[ 'debug' ] ); |
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|
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// Now modify all references |
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|
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$content = str_replace( $search , $replace, $content ); |
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|
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} |
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$found_pos = strpos( $content, $options[ 'opening_ident' ] . $options[ 'keyword_ident' ], $found_pos + 1 ); |
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} |
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|
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// Loop around the post content looking for HTTP addresses |
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|
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$content = ace_quick_replace( $content, $options, 'http://' ); |
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|
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// Loop around the post content looking for HTTPS addresses |
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$content = ace_quick_replace( $content, $options, 'https://' ); |
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|
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return $content; |
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} |
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|
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add_filter( 'the_content', 'ace_filter' ); |
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add_filter( 'widget_content', 'ace_filter' ); |
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|
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/** |
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* Quick Replace |
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* |
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* Function to do a quick search/replace of the content |
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* |
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* @since 2.0 |
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* |
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* @param $content string The content |
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* @param $options string The options array |
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* @param $search string The string to search for |
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* @return string The updated content |
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*/ |
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|
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function ace_quick_replace( $content = '', $options = '', $search = '' ) { |
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|
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$start_pos = strpos( $content, $options[ 'opening_ident' ] . $search, 0 ); |
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$prefix_len = strlen( $options[ 'opening_ident' ] ); |
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|
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while ( $start_pos !== false ) { |
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|
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$start_pos = $start_pos + strlen( $options[ 'opening_ident' ] ); |
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$end_pos = strpos( $content, $options[ 'closing_ident' ], $start_pos ); |
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if ( $end_pos !== false ) { |
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$url = substr( $content, $start_pos, $end_pos - $start_pos ); |
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$file = ace_get_file( $url ); |
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$content = str_replace ( $options[ 'opening_ident' ] . $url . $options[ 'closing_ident' ], $file[ 'file' ], $content ); |
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} |
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$start_pos = strpos( $content, $options[ 'opening_ident' ] . $search, $found_pos ); |
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|
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} |
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|
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return $content; |
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} |
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|
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/** |
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* Generate Embed Code |
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* |
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* Function to generate the embed code that will be output |
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* |
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* @since 2.0 |
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* |
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* @param $html string The embed code (required) |
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* @param $plugin_name string The name of the plugin (required) |
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* @param $responsive string Responsive output required? (optional) |
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* @param $max_width string Maximum width of responsive output (optional) |
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* @param $debug boolean Whether to suppress debug output (1) or not |
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* @return string The embed code |
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*/ |
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|
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function ace_generate_code( $html, $plugin_name, $responsive = '', $max_width = '', $debug = '' ) { |
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|
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$code = "\n"; |
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if ( $debug != 1 ) { $code .= '<!-- ' . $plugin_name . ' v' . artiss_code_embed_version . " -->\n"; } |
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|
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if ( $max_width !== false ) { $code .= '<div style="width: ' . $max_width . 'px; max-width: 100%">'; } |
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|
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if ( $responsive ) { $code .= '<div class="ace-video-container">'; } |
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|
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$code .= $html; |
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|
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if ( $responsive ) { $code .= '</div>'; } |
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|
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if ( $max_width !== false ) { $code .= '</div>'; } |
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|
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$code .= "\n"; |
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if ( $debug != 1 ) { $code .= '<!-- End of ' . $plugin_name . " code -->\n"; } |
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|
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return $code; |
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} |
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|
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/** |
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* Get the Global Embed Code |
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* |
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* Function to look for and, if available, return the global embed code |
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* |
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* @since 1.6 |
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* |
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* @uses ace_report_error Generate an error message |
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* |
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* @param $ident string The embed code opening identifier |
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* @param $suffix string The embed code suffix |
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* @return string The embed code (or error) |
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*/ |
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|
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function ace_get_embed_code( $ident, $suffix ) { |
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|
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// Meta was not found in current post so look across meta table - find the number of distinct code results |
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|
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$meta_name = $ident . $suffix; |
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global $wpdb; |
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$unique_records = $wpdb -> get_results( "SELECT DISTINCT meta_value FROM $wpdb->postmeta WHERE meta_key = '" . $meta_name . "'" ); |
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$records = $wpdb -> num_rows; |
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|
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if ( $records > 0 ) { |
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|
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// Results were found |
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|
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$meta = $wpdb -> get_results( "SELECT meta_value, post_title, ID FROM $wpdb->postmeta, $wpdb->posts WHERE meta_key = '" . $meta_name . "' AND post_id = ID" ); |
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$total_records = $wpdb -> num_rows; |
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|
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if ( $records == 1 ) { |
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|
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// Only one unique code result returned so assume this is the global embed |
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|
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foreach ( $meta as $meta_data ) { |
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$html = $meta_data -> meta_value; |
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} |
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|
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} else { |
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|
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// More than one unique code result returned, so output the list of posts |
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|
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$error = sprintf( __( 'Cannot use %s as a global code as it is being used to store %d unique pieces of code in %d posts - <a href="%s">click here</a> for more details', 'simple-embed-code' ), $meta_name, $records, $total_records, get_bloginfo( 'wpurl' ) . '/wp-admin/admin.php?page=ace-search&suffix=' . $suffix ); |
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$html = ace_report_error( $error, 'Code Embed', false ); |
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} |
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} else { |
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|
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// No meta code was found so write out an error |
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|
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$html = ace_report_error( sprintf( __( 'No embed code was found for %s', 'simple-embed-code' ), $meta_name ), 'Code Embed', false ); |
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|
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} |
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return $html; |
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} |
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|
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/** |
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* Fetch a file (1.6) |
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* |
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* Use WordPress API to fetch a file and check results |
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* RC is 0 to indicate success, -1 a failure |
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* |
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* @since 2.0 |
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* |
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* @param string $filein File name to fetch |
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* @param string $header Only get headers? |
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* @return string Array containing file contents and response |
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*/ |
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|
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function ace_get_file( $filein, $header = false ) { |
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|
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$rc = 0; |
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$error = ''; |
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if ( $header ) { |
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$fileout = wp_remote_head( $filein ); |
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if ( is_wp_error( $fileout ) ) { |
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$error = 'Header: ' . $fileout -> get_error_message(); |
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$rc = -1; |
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} |
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} else { |
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$fileout = wp_remote_get( $filein ); |
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if ( is_wp_error( $fileout ) ) { |
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$error = 'Body: ' . $fileout -> get_error_message(); |
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$rc = -1; |
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} else { |
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if ( isset( $fileout[ 'body' ] ) ) { |
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$file_return[ 'file' ] = $fileout[ 'body' ]; |
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} |
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} |
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} |
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|
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$file_return[ 'error' ] = $error; |
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$file_return[ 'rc' ] = $rc; |
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if ( !is_wp_error( $fileout ) ) { |
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if ( isset( $fileout[ 'response' ][ 'code' ] ) ) { |
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$file_return[ 'response' ] = $fileout[ 'response' ][ 'code' ]; |
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} |
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} |
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|
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return $file_return; |
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} |
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|
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/** |
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* Report an error (1.4) |
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* |
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* Function to report an error |
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* |
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* @since 1.6 |
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* |
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* @param $error string Error message |
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* @param $plugin_name string The name of the plugin |
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* @param $echo string True or false, depending on whether you wish to return or echo the results |
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* @return string True or the output text |
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*/ |
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|
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function ace_report_error( $error, $plugin_name, $echo = true ) { |
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|
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$output = '<p style="color: #f00; font-weight: bold;">' . $plugin_name . ': ' . $error . "</p>\n"; |
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|
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if ( $echo ) { |
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echo $output; |
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return true; |
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} else { |
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return $output; |
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} |
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|
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} |
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?> |
