1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
|
<?php
/**
* youtube shortcode
*
* Contains shortcode + some improvements over the Embeds syntax @
* http://codex.wordpress.org/Embeds
*
* @example [youtube=http://www.youtube.com/watch?v=wq0rXGLs0YM&fs=1&hl=bg_BG]
*/
/**
* Replaces YouTube embeds with YouTube shortcodes.
*
* @param string $content HTML content.
* @return string The content with YouTube embeds replaced with YouTube shortcodes.
*/
// 2008-07-15:
//<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/bZBHZT3a-FA&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/bZBHZT3a-FA&hl=en&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>
// around 2008-06-06 youtube changed their old embed code to this:
//<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/M1D30gS7Z8U&hl=en"></param><embed src="http://www.youtube.com/v/M1D30gS7Z8U&hl=en" type="application/x-shockwave-flash" width="425" height="344"></embed></object>
// old style was:
// <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/dGY28Qbj76A&rel=0"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/dGY28Qbj76A&rel=0" type="application/x-shockwave-flash" wmode="transparent" width="425" height="344"></embed></object>
// 12-2010:
// <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/3H8bnKdf654?fs=1&hl=en_GB"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/3H8bnKdf654?fs=1&hl=en_GB" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>
// 01-2011:
// <iframe title="YouTube video player" class="youtube-player" type="text/html" width="640" height="390" src="http://www.youtube.com/embed/Qq9El3ki0_g" frameborder="0" allowFullScreen></iframe>
// <iframe class="youtube-player" type="text/html" width="640" height="385" src="http://www.youtube.com/embed/VIDEO_ID" frameborder="0"></iframe>
function youtube_embed_to_short_code( $content ) {
if ( false === strpos( $content, 'youtube.com' ) )
return $content;
//older codes
$regexp = '!<object width="\d+" height="\d+"><param name="movie" value="https?://www\.youtube\.com/v/([^"]+)"></param>(?:<param name="\w+" value="[^"]*"></param>)*<embed src="https?://www\.youtube\.com/v/(.+)" type="application/x-shockwave-flash"(?: \w+="[^"]*")* width="\d+" height="\d+"></embed></object>!i';
$regexp_ent = htmlspecialchars( $regexp, ENT_NOQUOTES );
$old_regexp = '!<embed(?:\s+\w+="[^"]*")*\s+src="https?(?:\:|�*58;)//www\.youtube\.com/v/([^"]+)"(?:\s+\w+="[^"]*")*\s*(?:/>|>\s*</embed>)!';
$old_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $old_regexp, ENT_NOQUOTES ) );
//new code
$ifr_regexp = '!<iframe((?:\s+\w+="[^"]*")*?)\s+src="https?://(?:www\.)*youtube.com/embed/([^"]+)".*?</iframe>!i';
$ifr_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $ifr_regexp, ENT_NOQUOTES ) );
foreach ( array( 'regexp', 'regexp_ent', 'old_regexp', 'old_regexp_ent', 'ifr_regexp', 'ifr_regexp_ent' ) as $reg ) {
if ( ! preg_match_all( $$reg, $content, $matches, PREG_SET_ORDER ) )
continue;
foreach ( $matches as $match ) {
// Hack, but '?' should only ever appear once, and
// it should be for the 1st field-value pair in query string,
// if it is present
// YouTube changed their embed code.
// Example of how it is now:
// <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/aP9AaD4tgBY?fs=1&hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/aP9AaD4tgBY?fs=1&hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>
// As shown at the start of function, previous YouTube didn't '?'
// the 1st field-value pair.
if ( in_array ( $reg, array( 'ifr_regexp', 'ifr_regexp_ent' ) ) ) {
$params = $match[1];
if ( 'ifr_regexp_ent' == $reg )
$params = html_entity_decode( $params );
$params = wp_kses_hair( $params, array( 'http' ) );
$width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0;
$height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0;
$wh = '';
if ( $width && $height )
$wh = "&w=$width&h=$height";
$url = esc_url_raw( "http://www.youtube.com/watch?v={$match[2]}{$wh}" );
} else {
$match[1] = str_replace( '?', '&', $match[1] );
$url = esc_url_raw( 'http://www.youtube.com/watch?v=' . html_entity_decode( $match[1] ) );
}
$content = str_replace( $match[0], "[youtube $url]", $content );
do_action( 'jetpack_embed_to_shortcode', 'youtube', $url );
}
}
return $content;
}
add_filter('pre_kses', 'youtube_embed_to_short_code');
/**
* Replaces plain-text links to YouTube videos with YouTube embeds.
*
* @param string $content HTML content
* @return string The content with embeds instead of URLs
*/
function youtube_link( $content ) {
return preg_replace_callback( '!(?:\n|\A)http://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/)[^\s]+?(?:\n|\Z)!i', 'youtube_link_callback', $content );
}
/**
* Callback function for the regex that replaces YouTube URLs with
* YouTube embeds.
*/
function youtube_link_callback( $matches ) {
return "\n" . youtube_id( $matches[0] ) . "\n";
}
/**
* Normalizes a YouTube URL to include a v= parameter and a query string free of encoded ampersands.
*
* @param string $url
* @return string The normalized URL
*/
function youtube_sanitize_url( $url ) {
$url = trim( $url, ' "' );
$url = trim( $url );
$url = str_replace( array( 'youtu.be/', '/v/', '#!v=', '&', '&', 'playlist' ), array( 'youtu.be/?v=', '/?v=', '?v=', '&', '&', 'videoseries' ), $url );
// Replace any extra question marks with ampersands - the result of a URL like "http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US" being passed in.
$query_string_start = strpos( $url, "?" );
if ( false !== $query_string_start ) {
$url = substr( $url, 0, $query_string_start + 1 ) . str_replace( "?", "&", substr( $url, $query_string_start + 1 ) );
}
return $url;
}
/*
* url can be:
* http://www.youtube.com/embed/videoseries?list=PL94269DA08231042B&hl=en_US
* http://www.youtube.com/watch#!v=H2Ncxw1xfck
* http://www.youtube.com/watch?v=H2Ncxw1xfck
* http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0
* http://www.youtube.com/v/jF-kELmmvgA
* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US
* http://youtu.be/Rrohlqeir5E
*/
function get_youtube_id( $url ) {
$url = youtube_sanitize_url( $url );
$url = parse_url( $url );
$id = false;
if ( ! isset( $url['query'] ) )
return false;
parse_str( $url['query'], $qargs );
if ( ! isset( $qargs['v'] ) && ! isset( $qargs['list'] ) )
return false;
if ( isset( $qargs['list'] ) )
$id = preg_replace( '|[^_a-z0-9-]|i', '', $qargs['list'] );
if ( empty( $id ) )
$id = preg_replace( '|[^_a-z0-9-]|i', '', $qargs['v'] );
return $id;
}
/**
* Converts a YouTube URL into an embedded YouTube video.
*/
function youtube_id( $url ) {
if ( apply_filters( 'jetpack_bail_on_shortcode', false, 'youtube' ) )
return '';
if ( ! $id = get_youtube_id( $url ) )
return '<!--YouTube Error: bad URL entered-->';
$url = youtube_sanitize_url( $url );
$url = parse_url( $url );
if ( ! isset( $url['query'] ) )
return false;
parse_str( $url['query'], $qargs );
// calculate the width and height, taking content_width into consideration
global $content_width;
$input_w = ( isset( $qargs['w'] ) && intval( $qargs['w'] ) ) ? intval( $qargs['w'] ) : 0;
$input_h = ( isset( $qargs['h'] ) && intval( $qargs['h'] ) ) ? intval( $qargs['h'] ) : 0;
$default_width = get_option('embed_size_w');
if ( empty( $default_width ) ) {
if ( ! empty( $content_width ) ) {
$default_width = $content_width;
} else {
$default_width = 640;
}
}
if ( $input_w > 0 && $input_h > 0 ) {
$w = $input_w;
$h = $input_h;
} elseif ( 0 == $input_w && 0 == $input_h ) {
if ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) {
$w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 );
} else {
$w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width );
$h = ceil( ( $w / 16 ) * 9 ) + 30;
}
} elseif ( $input_w > 0 ) {
$w = $input_w;
$h = ceil( ( $w / 16 ) * 9 ) + 30;
} else {
if ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) {
$w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 );
} else {
$w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width );
$h = $input_h;
}
}
$w = (int) apply_filters( 'youtube_width', $w );
$h = (int) apply_filters( 'youtube_height', $h );
$rel = ( isset( $qargs['rel'] ) && 0 == $qargs['rel'] ) ? 0 : 1;
$search = ( isset( $qargs['showsearch'] ) && 1 == $qargs['showsearch'] ) ? 1 : 0;
$info = ( isset( $qargs['showinfo'] ) && 0 == $qargs['showinfo'] ) ? 0 : 1;
$iv = ( isset( $qargs['iv_load_policy'] ) && 3 == $qargs['iv_load_policy'] ) ? 3 : 1;
$fmt = ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) ? '&fmt=' . (int) $qargs['fmt'] : '';
$start = ( isset( $qargs['start'] ) && intval( $qargs['start'] ) ) ? '&start=' . (int) $qargs['start'] : '';
$hd = ( isset( $qargs['hd'] ) && intval( $qargs['hd'] ) ) ? '&hd=' . (int) $qargs['hd'] : '';
$wmode = ( isset( $qargs['wmode'] ) && in_array( strtolower( $qargs['wmode'] ), array( 'opaque', 'window', 'transparent' ) ) ) ? $qargs['wmode'] : 'transparent';
$alignmentcss = 'text-align:center;';
if ( isset( $qargs['align'] ) ) {
switch ( $qargs['align'] ) {
case 'left':
$alignmentcss = "float:left; width:{$w}px; height:{$h}px; margin-right:10px; margin-bottom: 10px;";
break;
case 'right':
$alignmentcss = "float:right; width:{$w}px; height:{$h}px; margin-left:10px; margin-bottom: 10px;";
break;
}
}
if ( ( isset( $url['path'] ) && '/videoseries' == $url['path'] ) || isset( $qargs['list'] ) ) {
$html = "<span class='embed-youtube' style='$alignmentcss display: block;'><iframe class='youtube-player' type='text/html' width='$w' height='$h' src='" . esc_url( "http://www.youtube.com/embed/videoseries?list=$id&hl=en_US" ) . "' frameborder='0'></iframe></span>";
} else {
$html = "<span class='embed-youtube' style='$alignmentcss display: block;'><iframe class='youtube-player' type='text/html' width='$w' height='$h' src='" . esc_url( "http://www.youtube.com/embed/$id?version=3&rel=$rel&fs=1$fmt&showsearch=$search&showinfo=$info&iv_load_policy=$iv$start$hd&wmode=$wmode" ) . "' frameborder='0'></iframe></span>";
}
$html = apply_filters( 'video_embed_html', $html );
return $html;
}
function youtube_shortcode( $atts ) {
return youtube_id( ( isset ( $atts[0] ) ) ? ltrim( $atts[0] , '=' ) : shortcode_new_to_old_params( $atts ) );
}
add_shortcode( 'youtube', 'youtube_shortcode' );
/**
* For bare URLs on their own line of the form
* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US
*/
function wpcom_youtube_embed_crazy_url( $matches, $attr, $url ) {
return youtube_id( $url );
}
function wpcom_youtube_embed_crazy_url_init() {
wp_embed_register_handler( 'wpcom_youtube_embed_crazy_url', '#http://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/).*#i', 'wpcom_youtube_embed_crazy_url' );
}
add_action( 'init', 'wpcom_youtube_embed_crazy_url_init' );
// higher priority because we need it before auto-link and autop get to it
if ( get_option('embed_autourls') ) {
add_filter( 'comment_text', 'youtube_link', 1 );
}
|
GitWeb