├── .gitignore ├── .travis.yml ├── Gruntfile.js ├── LICENSE.md ├── README.md ├── bootstrap.php.dist ├── composer.json ├── dynamic_cdn.php ├── includes ├── classes │ └── DomainManager.php └── functions │ └── core.php ├── package.json ├── phpunit.xml.dist ├── readme.txt └── tests └── phpunit ├── Core_Tests.php ├── DomainManagerTests.php └── test-tools └── TestCase.php /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | vendor 3 | composer.lock 4 | release -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: php 2 | 3 | php: 4 | - 7.0 5 | - 7.1 6 | - nightly 7 | 8 | matrix: 9 | fast_finish: true 10 | allow_failures: 11 | - php: nightly 12 | 13 | before_script: 14 | - composer install --dev --no-interaction 15 | 16 | after_script: 17 | - travis_retry php vendor/bin/coveralls -v 18 | 19 | script: 20 | - mkdir -p build/logs 21 | - ./vendor/bin/phpunit --coverage-clover build/logs/clover.xml 22 | -------------------------------------------------------------------------------- /Gruntfile.js: -------------------------------------------------------------------------------- 1 | module.exports = function( grunt ) { 2 | grunt.initConfig({ 3 | wp_readme_to_markdown: { 4 | default: { 5 | files: { 6 | 'readme.md': 'readme.txt' 7 | } 8 | } 9 | } 10 | }); 11 | 12 | grunt.loadNpmTasks( 'grunt-wp-readme-to-markdown' ); 13 | 14 | grunt.registerTask( 'default', ['wp_readme_to_markdown'] ); 15 | }; -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. This 15 | General Public License applies to most of the Free Software 16 | Foundation's software and to any other program whose authors commit to 17 | using it. (Some other Free Software Foundation software is covered by 18 | the GNU Lesser General Public License instead.) You can apply it to 19 | your programs, too. 20 | 21 | When we speak of free software, we are referring to freedom, not 22 | price. Our General Public Licenses are designed to make sure that you 23 | have the freedom to distribute copies of free software (and charge for 24 | this service if you wish), that you receive source code or can get it 25 | if you want it, that you can change the software or use pieces of it 26 | in new free programs; and that you know you can do these things. 27 | 28 | To protect your rights, we need to make restrictions that forbid 29 | anyone to deny you these rights or to ask you to surrender the rights. 30 | These restrictions translate to certain responsibilities for you if you 31 | distribute copies of the software, or if you modify it. 32 | 33 | For example, if you distribute copies of such a program, whether 34 | gratis or for a fee, you must give the recipients all the rights that 35 | you have. You must make sure that they, too, receive or can get the 36 | source code. And you must show them these terms so they know their 37 | rights. 38 | 39 | We protect your rights with two steps: (1) copyright the software, and 40 | (2) offer you this license which gives you legal permission to copy, 41 | distribute and/or modify the software. 42 | 43 | Also, for each author's protection and ours, we want to make certain 44 | that everyone understands that there is no warranty for this free 45 | software. If the software is modified by someone else and passed on, we 46 | want its recipients to know that what they have is not the original, so 47 | that any problems introduced by others will not reflect on the original 48 | authors' reputations. 49 | 50 | Finally, any free program is threatened constantly by software 51 | patents. We wish to avoid the danger that redistributors of a free 52 | program will individually obtain patent licenses, in effect making the 53 | program proprietary. To prevent this, we have made it clear that any 54 | patent must be licensed for everyone's free use or not licensed at all. 55 | 56 | The precise terms and conditions for copying, distribution and 57 | modification follow. 58 | 59 | GNU GENERAL PUBLIC LICENSE 60 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 61 | 62 | 0. This License applies to any program or other work which contains 63 | a notice placed by the copyright holder saying it may be distributed 64 | under the terms of this General Public License. The "Program", below, 65 | refers to any such program or work, and a "work based on the Program" 66 | means either the Program or any derivative work under copyright law: 67 | that is to say, a work containing the Program or a portion of it, 68 | either verbatim or with modifications and/or translated into another 69 | language. (Hereinafter, translation is included without limitation in 70 | the term "modification".) Each licensee is addressed as "you". 71 | 72 | Activities other than copying, distribution and modification are not 73 | covered by this License; they are outside its scope. The act of 74 | running the Program is not restricted, and the output from the Program 75 | is covered only if its contents constitute a work based on the 76 | Program (independent of having been made by running the Program). 77 | Whether that is true depends on what the Program does. 78 | 79 | 1. You may copy and distribute verbatim copies of the Program's 80 | source code as you receive it, in any medium, provided that you 81 | conspicuously and appropriately publish on each copy an appropriate 82 | copyright notice and disclaimer of warranty; keep intact all the 83 | notices that refer to this License and to the absence of any warranty; 84 | and give any other recipients of the Program a copy of this License 85 | along with the Program. 86 | 87 | You may charge a fee for the physical act of transferring a copy, and 88 | you may at your option offer warranty protection in exchange for a fee. 89 | 90 | 2. You may modify your copy or copies of the Program or any portion 91 | of it, thus forming a work based on the Program, and copy and 92 | distribute such modifications or work under the terms of Section 1 93 | above, provided that you also meet all of these conditions: 94 | 95 | a) You must cause the modified files to carry prominent notices 96 | stating that you changed the files and the date of any change. 97 | 98 | b) You must cause any work that you distribute or publish, that in 99 | whole or in part contains or is derived from the Program or any 100 | part thereof, to be licensed as a whole at no charge to all third 101 | parties under the terms of this License. 102 | 103 | c) If the modified program normally reads commands interactively 104 | when run, you must cause it, when started running for such 105 | interactive use in the most ordinary way, to print or display an 106 | announcement including an appropriate copyright notice and a 107 | notice that there is no warranty (or else, saying that you provide 108 | a warranty) and that users may redistribute the program under 109 | these conditions, and telling the user how to view a copy of this 110 | License. (Exception: if the Program itself is interactive but 111 | does not normally print such an announcement, your work based on 112 | the Program is not required to print an announcement.) 113 | 114 | These requirements apply to the modified work as a whole. If 115 | identifiable sections of that work are not derived from the Program, 116 | and can be reasonably considered independent and separate works in 117 | themselves, then this License, and its terms, do not apply to those 118 | sections when you distribute them as separate works. But when you 119 | distribute the same sections as part of a whole which is a work based 120 | on the Program, the distribution of the whole must be on the terms of 121 | this License, whose permissions for other licensees extend to the 122 | entire whole, and thus to each and every part regardless of who wrote it. 123 | 124 | Thus, it is not the intent of this section to claim rights or contest 125 | your rights to work written entirely by you; rather, the intent is to 126 | exercise the right to control the distribution of derivative or 127 | collective works based on the Program. 128 | 129 | In addition, mere aggregation of another work not based on the Program 130 | with the Program (or with a work based on the Program) on a volume of 131 | a storage or distribution medium does not bring the other work under 132 | the scope of this License. 133 | 134 | 3. You may copy and distribute the Program (or a work based on it, 135 | under Section 2) in object code or executable form under the terms of 136 | Sections 1 and 2 above provided that you also do one of the following: 137 | 138 | a) Accompany it with the complete corresponding machine-readable 139 | source code, which must be distributed under the terms of Sections 140 | 1 and 2 above on a medium customarily used for software interchange; or, 141 | 142 | b) Accompany it with a written offer, valid for at least three 143 | years, to give any third party, for a charge no more than your 144 | cost of physically performing source distribution, a complete 145 | machine-readable copy of the corresponding source code, to be 146 | distributed under the terms of Sections 1 and 2 above on a medium 147 | customarily used for software interchange; or, 148 | 149 | c) Accompany it with the information you received as to the offer 150 | to distribute corresponding source code. (This alternative is 151 | allowed only for noncommercial distribution and only if you 152 | received the program in object code or executable form with such 153 | an offer, in accord with Subsection b above.) 154 | 155 | The source code for a work means the preferred form of the work for 156 | making modifications to it. For an executable work, complete source 157 | code means all the source code for all modules it contains, plus any 158 | associated interface definition files, plus the scripts used to 159 | control compilation and installation of the executable. However, as a 160 | special exception, the source code distributed need not include 161 | anything that is normally distributed (in either source or binary 162 | form) with the major components (compiler, kernel, and so on) of the 163 | operating system on which the executable runs, unless that component 164 | itself accompanies the executable. 165 | 166 | If distribution of executable or object code is made by offering 167 | access to copy from a designated place, then offering equivalent 168 | access to copy the source code from the same place counts as 169 | distribution of the source code, even though third parties are not 170 | compelled to copy the source along with the object code. 171 | 172 | 4. You may not copy, modify, sublicense, or distribute the Program 173 | except as expressly provided under this License. Any attempt 174 | otherwise to copy, modify, sublicense or distribute the Program is 175 | void, and will automatically terminate your rights under this License. 176 | However, parties who have received copies, or rights, from you under 177 | this License will not have their licenses terminated so long as such 178 | parties remain in full compliance. 179 | 180 | 5. You are not required to accept this License, since you have not 181 | signed it. However, nothing else grants you permission to modify or 182 | distribute the Program or its derivative works. These actions are 183 | prohibited by law if you do not accept this License. Therefore, by 184 | modifying or distributing the Program (or any work based on the 185 | Program), you indicate your acceptance of this License to do so, and 186 | all its terms and conditions for copying, distributing or modifying 187 | the Program or works based on it. 188 | 189 | 6. Each time you redistribute the Program (or any work based on the 190 | Program), the recipient automatically receives a license from the 191 | original licensor to copy, distribute or modify the Program subject to 192 | these terms and conditions. You may not impose any further 193 | restrictions on the recipients' exercise of the rights granted herein. 194 | You are not responsible for enforcing compliance by third parties to 195 | this License. 196 | 197 | 7. If, as a consequence of a court judgment or allegation of patent 198 | infringement or for any other reason (not limited to patent issues), 199 | conditions are imposed on you (whether by court order, agreement or 200 | otherwise) that contradict the conditions of this License, they do not 201 | excuse you from the conditions of this License. If you cannot 202 | distribute so as to satisfy simultaneously your obligations under this 203 | License and any other pertinent obligations, then as a consequence you 204 | may not distribute the Program at all. For example, if a patent 205 | license would not permit royalty-free redistribution of the Program by 206 | all those who receive copies directly or indirectly through you, then 207 | the only way you could satisfy both it and this License would be to 208 | refrain entirely from distribution of the Program. 209 | 210 | If any portion of this section is held invalid or unenforceable under 211 | any particular circumstance, the balance of the section is intended to 212 | apply and the section as a whole is intended to apply in other 213 | circumstances. 214 | 215 | It is not the purpose of this section to induce you to infringe any 216 | patents or other property right claims or to contest validity of any 217 | such claims; this section has the sole purpose of protecting the 218 | integrity of the free software distribution system, which is 219 | implemented by public license practices. Many people have made 220 | generous contributions to the wide range of software distributed 221 | through that system in reliance on consistent application of that 222 | system; it is up to the author/donor to decide if he or she is willing 223 | to distribute software through any other system and a licensee cannot 224 | impose that choice. 225 | 226 | This section is intended to make thoroughly clear what is believed to 227 | be a consequence of the rest of this License. 228 | 229 | 8. If the distribution and/or use of the Program is restricted in 230 | certain countries either by patents or by copyrighted interfaces, the 231 | original copyright holder who places the Program under this License 232 | may add an explicit geographical distribution limitation excluding 233 | those countries, so that distribution is permitted only in or among 234 | countries not thus excluded. In such case, this License incorporates 235 | the limitation as if written in the body of this License. 236 | 237 | 9. The Free Software Foundation may publish revised and/or new versions 238 | of the General Public License from time to time. Such new versions will 239 | be similar in spirit to the present version, but may differ in detail to 240 | address new problems or concerns. 241 | 242 | Each version is given a distinguishing version number. If the Program 243 | specifies a version number of this License which applies to it and "any 244 | later version", you have the option of following the terms and conditions 245 | either of that version or of any later version published by the Free 246 | Software Foundation. If the Program does not specify a version number of 247 | this License, you may choose any version ever published by the Free Software 248 | Foundation. 249 | 250 | 10. If you wish to incorporate parts of the Program into other free 251 | programs whose distribution conditions are different, write to the author 252 | to ask for permission. For software which is copyrighted by the Free 253 | Software Foundation, write to the Free Software Foundation; we sometimes 254 | make exceptions for this. Our decision will be guided by the two goals 255 | of preserving the free status of all derivatives of our free software and 256 | of promoting the sharing and reuse of software generally. 257 | 258 | NO WARRANTY 259 | 260 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 263 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 264 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 265 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 266 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 267 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 268 | REPAIR OR CORRECTION. 269 | 270 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278 | POSSIBILITY OF SUCH DAMAGES. 279 | 280 | END OF TERMS AND CONDITIONS 281 | 282 | How to Apply These Terms to Your New Programs 283 | 284 | If you develop a new program, and you want it to be of the greatest 285 | possible use to the public, the best way to achieve this is to make it 286 | free software which everyone can redistribute and change under these terms. 287 | 288 | To do so, attach the following notices to the program. It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | {description} 294 | Copyright (C) {year} {fullname} 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License along 307 | with this program; if not, write to the Free Software Foundation, Inc., 308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 | 310 | Also add information on how to contact you by electronic and paper mail. 311 | 312 | If the program is interactive, make it output a short notice like this 313 | when it starts in an interactive mode: 314 | 315 | Gnomovision version 69, Copyright (C) year name of author 316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 | This is free software, and you are welcome to redistribute it 318 | under certain conditions; type `show c' for details. 319 | 320 | The hypothetical commands `show w' and `show c' should show the appropriate 321 | parts of the General Public License. Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | {signature of Ty Coon}, 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Dynamic CDN # [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url] 2 | 3 | **Contributors:** [ericmann](https://profiles.wordpress.org/ericmann), [10up](https://profiles.wordpress.org/10up) 4 | **Donate link:** https://eamann.com 5 | **Tags:** CDN, images, performance 6 | **Requires at least:** 3.8.1 7 | **Tested up to:** 4.5.2 8 | **Stable tag:** 0.4.0 9 | **License:** GPLv2 or later 10 | **License URI:** https://github.com/ericmann/dynamic-cdn/blob/master/LICENSE.md 11 | 12 | Dynamic CDN for front-end assets. 13 | 14 | ## Description ## 15 | 16 | Dynamic solution for rewriting image asset URLs to a hosted content delivery network (CDN) with optional domain sharding for concurrent downloads. 17 | 18 | This plugin is based heavily on the CDN dropin from Mark Jaquith's WP_Stack (https://github.com/markjaquith/WP-Stack). 19 | 20 | ## Installation ## 21 | 22 | ### Manual Installation ### 23 | 24 | 1. Upload the entire `/dynamic-cdn` directory to the `/wp-content/plugins/` directory. 25 | 2. Activate Dynamic CDN through the 'Plugins' menu in WordPress. 26 | 27 | ## Frequently Asked Questions ## 28 | 29 | ### Will this work as a mu-plugin? ### 30 | 31 | Yes. The plugin, as designed, will work just fine in the mu-plugins directory. We highly recommend a second mu-plugin be added to configure the CDN domains used by the system. 32 | 33 | ### How do I add a domain? ### 34 | 35 | In a function wired to `dynamic_cdn_first_loaded`, you'll reference the `->add_domain()` method of the `Dynamic_CDN` object. For example: 36 | 37 | function my_cdn_domains() { 38 | $manager = DomainManager::last(); 39 | $manager->add( 'cdn0.mydomain.com' ); 40 | $manager->add( 'cdn1.mydomain.com' ); 41 | $manager->add( 'cdn2.mydomain.com' ); 42 | } 43 | add_action( 'dynamic_cdn_first_loaded', 'my_cdn_domains' ); 44 | 45 | ### What if I want to add my domains through wp-config.php? ### 46 | 47 | Simply define a DYNCDN_DOMAINS constant that's a comma-delimited list of your cdn domains. For example: 48 | 49 | define( 'DYNCDN_DOMAINS', 'cdn0.mydomain.com,cdn1.mydomain.com,cdn2.mydomain.com' ); 50 | 51 | ### What if I don't add any domains, will this break my images? ### 52 | 53 | Hopefully not. If you haven't added any domains the plugin will not rewrite anything, bypassing your images entirely. 54 | 55 | ## Screenshots ## 56 | 57 | None at this time. 58 | 59 | ## Changelog ## 60 | 61 | ### 0.4.0 ### 62 | * New: Unit tests for core functionality 63 | * Fix: Ensure srcsets don't filter in admin views 64 | 65 | ### 0.3.0 ### 66 | * New: Add support for WordPress 4.4 srcsets 67 | 68 | ### 0.2.0 ### 69 | * New: CDN domains can be added with a constant. 70 | * Fix: Make domain mapping multisite aware. props @trepmal 71 | 72 | ### 0.1.0 ### 73 | * First release 74 | 75 | ## Upgrade Notice ## 76 | 77 | ### 0.4.0 ### 78 | Domain management has moved from a general-purpose class to a purpose-built `DomainManager` object. This object is 79 | instantiated with your current site's domain name, and can be accessed throught the static `DomainManager::last()` helper. 80 | (This method automatically returns the last-instantiated domain manager). If you weren't manipulating CdN domains 81 | programmatically, you won't need to change anything at all. 82 | 83 | ### 0.1.0 ### 84 | First Release 85 | 86 | [travis-image]: https://travis-ci.org/ericmann/dynamic-cdn.svg?branch=master 87 | [travis-url]: https://travis-ci.org/ericmann/dynamic-cdn 88 | [coveralls-image]: https://coveralls.io/repos/ericmann/dynamic-cdn/badge.svg?branch=master&service=github 89 | [coveralls-url]: https://coveralls.io/github/ericmann/dynamic-cdn?branch=master 90 | -------------------------------------------------------------------------------- /bootstrap.php.dist: -------------------------------------------------------------------------------- 1 | 5.6", 18 | "composer/installers": "~1.0.25" 19 | }, 20 | "require-dev": { 21 | "php": ">7.0", 22 | "10up/wp_mock": "0.2.0", 23 | "satooshi/php-coveralls": "^1.0" 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /dynamic_cdn.php: -------------------------------------------------------------------------------- 1 | 14 | * 15 | * This program is free software; you can redistribute it and/or modify 16 | * it under the terms of the GNU General Public License, version 2 or, at 17 | * your discretion, any later version, as published by the Free 18 | * Software Foundation. 19 | * 20 | * This program is distributed in the hope that it will be useful, 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 | * GNU General Public License for more details. 24 | * 25 | * You should have received a copy of the GNU General Public License 26 | * along with this program; if not, write to the Free Software 27 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 28 | */ 29 | 30 | // Useful global constants 31 | 32 | define( 'DYNCDN_VERSION', '0.4.0' ); 33 | define( 'DYNCDN_URL', plugin_dir_url( __FILE__ ) ); 34 | define( 'DYNCDN_PATH', dirname( __FILE__ ) . '/' ); 35 | define( 'DYNCDN_INC', DYNCDN_PATH . 'includes/' ); 36 | 37 | // Include Files 38 | require_once DYNCDN_INC . 'classes/DomainManager.php'; 39 | require_once DYNCDN_INC . 'functions/core.php'; 40 | 41 | // Activation/Deactivation 42 | register_activation_hook( __FILE__, '\EAMann\Dynamic_CDN\Core\activate' ); 43 | register_deactivation_hook( __FILE__, '\EAMann\Dynamic_CDN\Core\deactivate' ); 44 | 45 | // Bootstrap 46 | EAMann\Dynamic_CDN\Core\setup(); 47 | -------------------------------------------------------------------------------- /includes/classes/DomainManager.php: -------------------------------------------------------------------------------- 1 | site_domain = $domain; 78 | 79 | self::$last = $this; 80 | } 81 | 82 | /** 83 | * Add a CDN domain to the collection. 84 | * 85 | * @param string $cdn_domain 86 | * 87 | * @return bool 88 | */ 89 | public function add( $cdn_domain ) { 90 | if ( in_array( $cdn_domain, $this->cdn_domains ) ) { 91 | return false; 92 | } else { 93 | $this->cdn_domains[] = $cdn_domain; 94 | $this->has_domains = true; 95 | 96 | return true; 97 | } 98 | } 99 | 100 | /** 101 | * Get a CDN path for a given file, using a reduced checksum to automatically select from an array of available domains. 102 | * 103 | * @param string $file_path 104 | * 105 | * @return string 106 | */ 107 | public function cdn_domain( $file_path ) { 108 | // First, get a checksum for the file path to give us the index we'll use from the CDN domain array. 109 | $index = abs( crc32( $file_path ) ) % count( $this->cdn_domains ); 110 | 111 | /** 112 | * Return the correct CDN path to the file. 113 | * 114 | * @param string $cdn_domain 115 | * @param string $file_path 116 | */ 117 | return apply_filters( 'dynamic_cdn_domain_for_file', $this->cdn_domains[ $index ], $file_path ); 118 | } 119 | 120 | /** 121 | * Potentially replace a given file URL with a CDN-ified version 122 | * 123 | * @param string $file_url 124 | * 125 | * @return string 126 | */ 127 | public function new_url( $file_url ) { 128 | $domain = $this->cdn_domain( basename( $file_url ) ); 129 | $url = explode( '://', $this->site_domain ); 130 | 131 | $proto_pattern = '^((https?):)?\/\/'; 132 | 133 | if ( count( $url ) > 1 ) array_shift($url); 134 | 135 | // If the CDN domain has an existing protocol use that 136 | preg_match("#{$proto_pattern}#", $domain, $matches); 137 | 138 | /** 139 | * Allows plugins to override the HTTPS protocol 140 | * 141 | * @param string $scheme 142 | */ 143 | $scheme = apply_filters( 144 | 'dynamic_cdn_protocol', 145 | ( count($matches) >= 2 ? $matches[2] : ( is_ssl() ? 'https' : 'http' ) ) 146 | ); 147 | 148 | $domain = esc_url( $scheme . '://' . preg_replace( "#{$proto_pattern}#" , '', $domain ) ); 149 | 150 | /** 151 | * Modify the domain we're rewriting, should an aliasing plugin be used (for example) 152 | * 153 | * @param string $site_domain 154 | */ 155 | $url = apply_filters( 'dynamic_cdn_site_domain', $url[0] ); 156 | 157 | $pattern = "#{$proto_pattern}" . preg_quote($url, '#') . '#'; 158 | 159 | return preg_replace( $pattern, $domain, $file_url ); 160 | } 161 | 162 | /** 163 | * Verify whether or not the current manager has any registered CDN domains. 164 | * 165 | * @return bool 166 | */ 167 | public function has_domains() { 168 | return count( $this->cdn_domains ) > 0; 169 | } 170 | } 171 | -------------------------------------------------------------------------------- /includes/functions/core.php: -------------------------------------------------------------------------------- 1 | 6 | */ 7 | 8 | namespace EAMann\Dynamic_CDN\Core; 9 | 10 | use EAMann\Dynamic_CDN\DomainManager; 11 | 12 | /** 13 | * Default setup routine 14 | * 15 | * @uses add_action() 16 | * @uses do_action() 17 | * 18 | * @return void 19 | */ 20 | function setup() { 21 | $n = function( $function ) { 22 | return __NAMESPACE__ . "\\$function"; 23 | }; 24 | 25 | add_action( 'init', $n( 'init' ) ); 26 | add_action( 'dynamic_cdn_init', $n( 'initialize_manager' ) ); 27 | 28 | /** 29 | * Allow other plugins (i.e. mu-plugins) to hook in and populate the CDN domain array. 30 | */ 31 | do_action( 'dynamic_cdn_first_loaded' ); 32 | } 33 | 34 | /** 35 | * Get the site's current domain 36 | * 37 | * @return string 38 | */ 39 | function get_site_domain() { 40 | $url_parts = parse_url( get_bloginfo( 'url' ) ); 41 | 42 | $site_domain = $url_parts['host'] . ( isset( $url_parts['port'] ) ? ':' . $url_parts['port'] : '' ); 43 | 44 | /** 45 | * Update the stored site domain, should an aliasing plugin be used (for example) 46 | * 47 | * @param string $site_domain 48 | */ 49 | $site_domain = apply_filters( 'dynamic_cdn_site_domain', $site_domain ); 50 | 51 | return $site_domain; 52 | } 53 | 54 | 55 | /** 56 | * Initializes the plugin and fires an action other plugins can hook into. 57 | * 58 | * @uses do_action() 59 | * 60 | * @return void 61 | */ 62 | function init() { 63 | do_action( 'dynamic_cdn_init' ); 64 | } 65 | 66 | /** 67 | * Initialize the CDN domain manager for the current domain. 68 | */ 69 | function initialize_manager() { 70 | $site_domain = get_site_domain(); 71 | 72 | // Instantiate the domain manager 73 | $manager = \EAMann\Dynamic_CDN\DomainManager( $site_domain ); 74 | 75 | /** 76 | * Flag whether to filter all media content or just uploads. Set to `true` to only process uploads from the CDN 77 | * 78 | * @param bool $uploads_only 79 | */ 80 | $manager->uploads_only = apply_filters( 'dynamic_cdn_uploads_only', false ); 81 | 82 | /** 83 | * Filter the file extensions that will be served from the CDN. Expects an array of RegEx-style strings. 84 | * 85 | * @param array $extensions 86 | */ 87 | $manager->extensions = apply_filters( 'dynamic_cdn_extensions', array( 'jpe?g', 'gif', 'png', 'bmp', 'js', 'mp4', 'mp3', 'flac', 'mid', 'midi', 'wav', 'ogg', 'ogv', 'svg', 'svgz', 'pdf', 'doc', 'docx', 'ico' ) ); 88 | 89 | if ( ! is_admin() ) { 90 | add_action( 'template_redirect', '\EAMann\Dynamic_CDN\Core\create_buffer' ); 91 | 92 | if ( $manager->uploads_only ) { 93 | add_filter( 'the_content'/*'dynamic_cdn_content'*/, '\EAMann\Dynamic_CDN\Core\filter_uploads_only' ); 94 | } else { 95 | add_filter( 'dynamic_cdn_content', '\EAMann\Dynamic_CDN\Core\filter' ); 96 | } 97 | 98 | add_filter( 'wp_calculate_image_srcset', '\EAMann\Dynamic_CDN\Core\srcsets', 10, 5 ); 99 | 100 | add_action( 'rest_api_init', '\EAMann\Dynamic_CDN\Core\create_buffer' ); 101 | 102 | $cdn_domains = array(); 103 | if ( defined( 'DYNCDN_DOMAINS' ) ) { 104 | $cdn_domains = explode( ',', DYNCDN_DOMAINS ); 105 | $cdn_domains = array_map( 'trim', $cdn_domains ); 106 | } 107 | 108 | /** 109 | * Programmatically control and/or override any CDN domains as passed in via a hard-coded constant. 110 | * 111 | * @param array $cdn_domains 112 | */ 113 | $cdn_domains = apply_filters( 'dynamic_cdn_default_domains', $cdn_domains ); 114 | 115 | // Add all domains to the manager 116 | array_map( function( $domain ) use ( $manager ) { $manager->add( $domain ); }, $cdn_domains ); 117 | } 118 | } 119 | 120 | /** 121 | * Handles the WP 4.4 srcset Dynamic CDN support 122 | * 123 | * @param array $sources 124 | * @param array $size_array 125 | * @param string $image_src 126 | * @param array $image_meta 127 | * @param int $attachment_id 128 | * 129 | * @return mixed 130 | */ 131 | function srcsets( $sources, $size_array, $image_src, $image_meta, $attachment_id ) { 132 | 133 | // If we shouldn't process, ABORT! 134 | if( is_admin() || ! defined( 'DYNCDN_DOMAINS' ) ) { 135 | return $sources; 136 | } 137 | 138 | // Iteratively update each srcset 139 | $replacer = srcset_replacer( get_site_domain() ); 140 | array_walk( $sources, $replacer ); 141 | 142 | return $sources; 143 | } 144 | 145 | /** 146 | * Create a domain-specific srcset replacement function for use in array iterations 147 | * 148 | * @param string $domain 149 | * @return \Closure 150 | */ 151 | function srcset_replacer( $domain ) { 152 | $manager = \EAMann\Dynamic_CDN\DomainManager( $domain ); 153 | 154 | /** 155 | * Replace the URL for a specific source in a srcset with a CDN'd version 156 | * 157 | * @param array $source 158 | * 159 | * @return array 160 | */ 161 | return function( &$source ) use ( $manager ) { 162 | $source['url'] = $manager->new_url( $source['url'] ); 163 | 164 | return $source; 165 | }; 166 | } 167 | 168 | /** 169 | * Create an output buffer so we can dynamically rewrite any URLs going out. 170 | */ 171 | function create_buffer() { 172 | ob_start( '\EAMann\Dynamic_CDN\Core\ob' ); 173 | } 174 | 175 | /** 176 | * Callback function for the output buffer that allows us to filter content. 177 | * 178 | * @param $contents 179 | * 180 | * @return mixed|void 181 | */ 182 | function ob( $contents ) { 183 | $manager = DomainManager::last(); 184 | 185 | /** 186 | * Filter the content from the output buffer 187 | * 188 | * @param string $contents 189 | * @param Dynamic_CDN $this 190 | */ 191 | return apply_filters( 'dynamic_cdn_content', $contents, $manager ); 192 | } 193 | 194 | /** 195 | * Filter uploaded content (with the given extensions) and rewrite to a CDN. 196 | * 197 | * @param $content 198 | * 199 | * @return mixed 200 | */ 201 | function filter_uploads_only( $content ) { 202 | $manager = DomainManager::last(); 203 | 204 | if ( ! $manager->has_domains() ) { 205 | return $content; 206 | } 207 | 208 | $upload_dir = wp_upload_dir(); 209 | $upload_dir = $upload_dir['baseurl']; 210 | $url_parts = parse_url( $upload_dir ); 211 | $domain = $url_parts['host'] . ( isset( $url_parts['port'] ) ? ':' . $url_parts['port'] : '' ); 212 | $domain = preg_quote( $domain, '#' ); 213 | 214 | $path = ltrim( parse_url( $upload_dir, PHP_URL_PATH ), '/' ); 215 | $preg_path = str_replace( '/', '\\\?/', preg_quote( $path, '#' ) ); 216 | 217 | // Targeted replace just on uploads URLs 218 | $pattern = "#(\\\?[\"'])" // opening quote 219 | . "(https?:\\\?/\\\?/{$domain})?"// domain (optional) 220 | . "\\\?/($preg_path\\\?/" // uploads path 221 | // . "((?:(?!\\1]).)+)" // look for anything that's not our opening quote 222 | . "[\w\s\\\/\-\,\.]+)" // look for anything that's not our opening quote 223 | . "\.(" . implode( '|', $manager->extensions ) . ")" // extensions 224 | . "(\?((?:(?!\\1).)*))?" // match query strings 225 | . "\\1#"; // closing quote 226 | 227 | return preg_replace_callback( $pattern, 'EAMann\Dynamic_CDN\Core\filter_cb', $content ); 228 | } 229 | 230 | /** 231 | * Filter all static content (with the given extensions) and rewrite to a CDN. 232 | * 233 | * @param $content 234 | * 235 | * @return mixed 236 | */ 237 | function filter( $content ) { 238 | $manager = DomainManager::last(); 239 | 240 | if ( ! $manager->has_domains() ) { 241 | return $content; 242 | } 243 | $url = explode( '://', get_bloginfo( 'url' ) ); 244 | array_shift( $url ); 245 | 246 | /** 247 | * Modify the domain we're rewriting, should an aliasing plugin be used (for example) 248 | * 249 | * @param string $site_domain 250 | */ 251 | $url = apply_filters( 'dynamic_cdn_site_domain', rtrim( implode( '://', $url ), '/' ) ); 252 | $url = preg_quote( $url, '#' ); 253 | 254 | $pattern = "#(\\\?[\"'])" // opening quote 255 | . "((?:https?:)?\\\?/\\\?/{$url})?\\\?/" // domain (optional) 256 | // . "([^/](?:(?!\\1).)+)" // look for anything that's not our opening quote 257 | . "([^/][\w\s\\\/\-\,\.]+)" // look for anything that's not our opening quote 258 | . "\.(" . implode( '|', $manager->extensions ) . ")" // extensions 259 | . "(\?((?:(?!\\1).)*))?" // match query strings 260 | . "\\1#"; // closing quote 261 | 262 | return preg_replace_callback( $pattern, 'EAMann\Dynamic_CDN\Core\filter_cb', $content ); 263 | } 264 | 265 | /** 266 | * Callback function used to automatically parse assets and replace the image src with a CDN version. 267 | * 268 | * @param $matches 269 | * 270 | * @return string 271 | */ 272 | function filter_cb( $matches ) { 273 | $manager = DomainManager::last(); 274 | 275 | $upload_dir = wp_upload_dir(); 276 | $upload_dir = $upload_dir['baseurl']; 277 | $upload_path = parse_url( $upload_dir, PHP_URL_PATH ); 278 | 279 | $domain = $manager->cdn_domain( $matches[0] ); 280 | 281 | $url = explode( '://', get_bloginfo( 'url' ) ); 282 | array_shift( $url ); 283 | 284 | /** 285 | * Modify the domain we're rewriting, should an aliasing plugin be used (for example) 286 | * 287 | * @param string $site_domain 288 | */ 289 | $url = apply_filters( 'dynamic_cdn_site_domain', rtrim( implode( '://', $url ), '/' ) ); 290 | $url = str_replace( $manager->site_domain, $domain, $url ); 291 | 292 | // Make sure to use https if the request is over SSL 293 | $scheme = apply_filters( 'dynamic_cdn_protocol', ( is_ssl() ? 'https' : 'http' ) ); 294 | 295 | // Append query string, if its available 296 | $query_string = isset( $matches[5] ) ? $matches[5] : ''; 297 | 298 | // If backslashes were escaped, then they need to continue being escaped 299 | if( strpos( $matches[0], '\\/' ) !== false ) { 300 | $add_slashes = true; 301 | } else { 302 | $add_slashes = false; 303 | } 304 | 305 | $result = "{$matches[1]}{$scheme}:" 306 | . ( $add_slashes ? addcslashes("//{$url}/", '/') : "//{$url}/" ) 307 | . "{$matches[3]}.{$matches[4]}{$query_string}{$matches[1]}"; 308 | 309 | return $result; 310 | } 311 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "dynamic-cdn", 3 | "title": "Dynamic CDN", 4 | "description": "Dynamic CDN for front-end assets.", 5 | "version": "0.4.0", 6 | "homepage": "https://jumping-duck.com", 7 | "repository": { 8 | "type": "git", 9 | "url": "https://github.com/ericmann/dynamic-cdn.git" 10 | }, 11 | "author": { 12 | "name": "Eric Mann", 13 | "email": "eric@eamann.com", 14 | "url": "https://eamann.com" 15 | }, 16 | "devDependencies": { 17 | "grunt": "~1.0.1", 18 | "grunt-wp-readme-to-markdown": "~2.0.0" 19 | }, 20 | "keywords": [] 21 | } -------------------------------------------------------------------------------- /phpunit.xml.dist: -------------------------------------------------------------------------------- 1 | 6 | 7 | 8 | ./tests/phpunit 9 | 10 | 11 | 12 | 13 | ./includes 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /readme.txt: -------------------------------------------------------------------------------- 1 | === Dynamic CDN === 2 | Contributors: ericmann, 10up 3 | Donate link: https://eamann.com 4 | Tags: CDN, images, performance 5 | Requires at least: 3.8.1 6 | Tested up to: 4.5.2 7 | Stable tag: 0.4.0 8 | License: GPLv2 or later 9 | License URI: https://github.com/ericmann/dynamic-cdn/blob/master/LICENSE.md 10 | 11 | Dynamic CDN for front-end assets. 12 | 13 | == Description == 14 | 15 | Dynamic solution for rewriting image asset URLs to a hosted content delivery network (CDN) with optional domain sharding for concurrent downloads. 16 | 17 | This plugin is based heavily on the CDN dropin from Mark Jaquith's WP_Stack (https://github.com/markjaquith/WP-Stack). 18 | 19 | == Installation == 20 | 21 | = Manual Installation = 22 | 23 | 1. Upload the entire `/dynamic-cdn` directory to the `/wp-content/plugins/` directory. 24 | 2. Activate Dynamic CDN through the 'Plugins' menu in WordPress. 25 | 26 | == Frequently Asked Questions == 27 | 28 | = Will this work as a mu-plugin? = 29 | 30 | Yes. The plugin, as designed, will work just fine in the mu-plugins directory. We highly recommend a second mu-plugin be added to configure the CDN domains used by the system. 31 | 32 | = How do I add a domain? = 33 | 34 | In a function wired to `dynamic_cdn_first_loaded`, you'll reference the `->add_domain()` method of the `Dynamic_CDN` object. For example: 35 | 36 | function my_cdn_domains() { 37 | $manager = DomainManager::last(); 38 | $manager->add( 'cdn0.mydomain.com' ); 39 | $manager->add( 'cdn1.mydomain.com' ); 40 | $manager->add( 'cdn2.mydomain.com' ); 41 | } 42 | add_action( 'dynamic_cdn_first_loaded', 'my_cdn_domains' ); 43 | 44 | = What if I want to add my domains through wp-config.php? = 45 | 46 | Simply define a DYNCDN_DOMAINS constant that's a comma-delimited list of your cdn domains. For example: 47 | 48 | define( 'DYNCDN_DOMAINS', 'cdn0.mydomain.com,cdn1.mydomain.com,cdn2.mydomain.com' ); 49 | 50 | = What if I don't add any domains, will this break my images? = 51 | 52 | Hopefully not. If you haven't added any domains the plugin will not rewrite anything, bypassing your images entirely. 53 | 54 | == Screenshots == 55 | 56 | None at this time. 57 | 58 | == Changelog == 59 | 60 | = 0.4.0 = 61 | * New: Unit tests for core functionality 62 | * Fix: Ensure srcsets don't filter in admin views 63 | 64 | = 0.3.0 = 65 | * New: Add support for WordPress 4.4 srcsets 66 | 67 | = 0.2.0 = 68 | * New: CDN domains can be added with a constant. 69 | * Fix: Make domain mapping multisite aware. props @trepmal 70 | 71 | = 0.1.0 = 72 | * First release 73 | 74 | == Upgrade Notice == 75 | 76 | = 0.4.0 = 77 | Domain management has moved from a general-purpose class to a purpose-built `DomainManager` object. This object is 78 | instantiated with your current site's domain name, and can be accessed throught the static `DomainManager::last()` helper. 79 | (This method automatically returns the last-instantiated domain manager). If you weren't manipulating CdN domains 80 | programmatically, you won't need to change anything at all. 81 | 82 | = 0.1.0 = 83 | First Release 84 | -------------------------------------------------------------------------------- /tests/phpunit/Core_Tests.php: -------------------------------------------------------------------------------- 1 | assertConditionsMet(); 28 | } 29 | 30 | /** 31 | * Test initialization method. 32 | */ 33 | public function test_init() { 34 | // Setup 35 | M::expectAction( 'dynamic_cdn_init' ); 36 | 37 | // Act 38 | init(); 39 | 40 | // Verify 41 | $this->assertConditionsMet(); 42 | } 43 | 44 | public function test_srcset_replacement() { 45 | $manager = Base\DomainManager( 'http://test.com' ); 46 | $manager->add( 'https://cdn1.com' ); 47 | 48 | // Mocks 49 | M::wpFunction( 'is_ssl', [ 'return' => false ] ); 50 | M::wpPassthruFunction( 'esc_url' ); 51 | 52 | $source = [ 53 | 'url' => 'http://test.com/image.jpg' 54 | ]; 55 | 56 | $replacer = srcset_replacer( 'http://test.com' ); 57 | 58 | $this->assertEquals( 'https://cdn1.com/image.jpg', $replacer( $source )['url'] ); 59 | } 60 | 61 | public function test_srcset_replacement_no_protocol_cdn() { 62 | $manager = Base\DomainManager( 'http://test1.com' ); 63 | $manager->add( 'cdn1.com' ); 64 | 65 | // Mocks 66 | M::wpFunction( 'is_ssl', [ 'return' => false ] ); 67 | M::wpPassthruFunction( 'esc_url' ); 68 | 69 | $source = [ 70 | 'url' => 'http://test1.com/image.jpg' 71 | ]; 72 | 73 | $replacer = srcset_replacer( 'http://test1.com' ); 74 | 75 | $this->assertEquals( 'http://cdn1.com/image.jpg', $replacer( $source )['url'] ); 76 | } 77 | 78 | 79 | public function test_host_with_port() { 80 | M::wpFunction( 'is_ssl', [ 'return' => true ] ); 81 | 82 | \WP_Mock::wpFunction( 'get_bloginfo', array( 83 | 'args' => 'url', 84 | 'return' => 'http://localhost:9001' 85 | ) ); 86 | \WP_Mock::wpFunction( 'wp_upload_dir', array( 87 | 'return' => array( 88 | 'baseurl' => 'http://localhost:9001/wp-content/uploads' 89 | ) 90 | ) ); 91 | $manager = Base\DomainManager( 'localhost:9001' ); 92 | $manager->extensions = array( 'jpg' ); 93 | $manager->add( 'cdn1.com' ); 94 | $content = ''; 95 | $filtered_content = filter( $content ); 96 | $expected = ''; 97 | 98 | $this->assertEquals( $expected, $filtered_content ); 99 | } 100 | 101 | public function test_query_string() { 102 | M::wpFunction( 'is_ssl', [ 'return' => true ] ); 103 | 104 | \WP_Mock::wpFunction( 'get_bloginfo', array( 105 | 'args' => 'url', 106 | 'return' => 'http://localhost' 107 | ) ); 108 | \WP_Mock::wpFunction( 'wp_upload_dir', array( 109 | 'return' => array( 110 | 'baseurl' => 'http://localhost/wp-content/uploads' 111 | ) 112 | ) ); 113 | $manager = Base\DomainManager( 'localhost' ); 114 | $manager->extensions = array( 'jpg' ); 115 | $manager->add( 'cdn1.com' ); 116 | $site_url = 'http://localhost'; 117 | $content = ' 118 | 119 | 120 | 121 | '; 122 | $filtered_content = filter( $content ); 123 | $expected = ' 124 | 125 | 126 | 127 | '; 128 | 129 | $this->assertEquals( $expected, $filtered_content ); 130 | } 131 | 132 | public function test_escaped_content() { 133 | M::wpFunction( 'is_ssl', [ 'return' => true ] ); 134 | \WP_Mock::wpFunction( 'get_bloginfo', array( 135 | 'args' => 'url', 136 | 'return' => 'http://localhost' 137 | ) ); 138 | \WP_Mock::wpFunction( 'wp_upload_dir', array( 139 | 'return' => array( 140 | 'baseurl' => 'http://localhost/wp-content/uploads' 141 | ) 142 | ) ); 143 | $manager = Base\DomainManager( 'localhost' ); 144 | $manager->extensions = array( 'jpg' ); 145 | $manager->add( 'cdn1.com' ); 146 | $site_url = 'http://localhost'; 147 | $content = ' 148 | 149 | 150 | '; 151 | $filtered_content = filter( $content ); 152 | $expected = ' 153 | 154 | 155 | '; 156 | $this->assertEquals( $expected, $filtered_content ); 157 | } 158 | 159 | public function test_escaped_content_uploads_only() { 160 | M::wpFunction( 'is_ssl', [ 'return' => true ] ); 161 | \WP_Mock::wpFunction( 'get_bloginfo', array( 162 | 'args' => 'url', 163 | 'return' => 'http://localhost' 164 | ) ); 165 | \WP_Mock::wpFunction( 'wp_upload_dir', array( 166 | 'return' => array( 167 | 'baseurl' => 'http://localhost/wp-content/uploads' 168 | ) 169 | ) ); 170 | $manager = Base\DomainManager( 'localhost' ); 171 | $manager->extensions = array( 'jpg' ); 172 | $manager->add( 'cdn1.com' ); 173 | $site_url = 'http://localhost'; 174 | $content = ' 175 | 176 | 177 | '; 178 | $filtered_content = filter_uploads_only( $content ); 179 | $expected = ' 180 | 181 | 182 | '; 183 | $this->assertEquals( $expected, $filtered_content ); 184 | } 185 | 186 | public function test_json_content() { 187 | M::wpFunction( 'is_ssl', [ 'return' => true ] ); 188 | \WP_Mock::wpFunction( 'get_bloginfo', array( 189 | 'args' => 'url', 190 | 'return' => 'http://localhost' 191 | ) ); 192 | \WP_Mock::wpFunction( 'wp_upload_dir', array( 193 | 'return' => array( 194 | 'baseurl' => 'http://localhost/wp-content/uploads' 195 | ) 196 | ) ); 197 | $manager = Base\DomainManager( 'localhost' ); 198 | $manager->extensions = array( 'jpg' ); 199 | $manager->add( 'cdn1.com' ); 200 | $site_url = 'http://localhost'; 201 | $content = '{"file": "/wp-content/uploads/puppy.jpg"}'; 202 | $filtered_content = filter( $content ); 203 | $expected = '{"file": "https://cdn1.com/wp-content/uploads/puppy.jpg"}'; 204 | $this->assertEquals( $expected, $filtered_content ); 205 | } 206 | 207 | } 208 | -------------------------------------------------------------------------------- /tests/phpunit/DomainManagerTests.php: -------------------------------------------------------------------------------- 1 | assertNotSame( $second, $first ); 25 | $this->assertInstanceOf( '\EAMann\Dynamic_CDN\DomainManager', $first ); 26 | $this->assertInstanceOf( '\EAMann\Dynamic_CDN\DomainManager', $second ); 27 | $this->assertSame( $second, $third ); 28 | } 29 | 30 | public function test_adds_domains() { 31 | $manager = DomainManager( 'http://test.com' ); 32 | 33 | $this->assertTrue( $manager->add( 'http://cdn1.com' ) ); 34 | $this->assertTrue( $manager->add( 'http://cdn2.com' ) ); 35 | $this->assertFalse( $manager->add( 'http://cdn1.com' ) ); 36 | } 37 | 38 | public function test_cdn_domain_selection() { 39 | $manager = DomainManager( 'http://test.com' ); 40 | $manager->add( 'http://cdn1.com' ); 41 | $manager->add( 'http://cdn2.com' ); 42 | $manager->add( 'http://cdn3.com' ); 43 | 44 | $this->assertEquals( $manager->cdn_domain( 'file1.jpg' ), $manager->cdn_domain( 'file1.jpg' ) ); 45 | $this->assertNotEquals( $manager->cdn_domain( 'file1.jpg' ), $manager->cdn_domain( 'file2.jpg' ) ); 46 | } 47 | 48 | public function test_domain_replacement() { 49 | $manager = DomainManager( 'http://test.com' ); 50 | $manager->add( 'http://cdn1.com' ); 51 | 52 | $original = 'http://test.com/image.png'; 53 | $expected = 'http://cdn1.com/image.png'; 54 | 55 | // Mocks 56 | M::wpFunction( 'is_ssl', [ 'return' => false ] ); 57 | M::wpPassthruFunction( 'esc_url' ); 58 | 59 | // Verify 60 | $this->assertEquals( $expected, $manager->new_url( $original ) ); 61 | } 62 | 63 | public function test_domain_replacement_ssl() { 64 | $manager = DomainManager( 'https://test.com' ); 65 | $manager->add( 'https://cdn1.com' ); 66 | 67 | $original = 'https://test.com/image.png'; 68 | $expected = 'https://cdn1.com/image.png'; 69 | 70 | // Mocks 71 | M::wpFunction( 'is_ssl', [ 'return' => true ] ); 72 | M::wpPassthruFunction( 'esc_url' ); 73 | 74 | // Verify 75 | $this->assertEquals( $expected, $manager->new_url( $original ) ); 76 | } 77 | 78 | public function test_domain_replacement_mixed() { 79 | $manager = DomainManager( 'http://test.com' ); 80 | $manager->add( 'https://cdn1.com' ); 81 | 82 | $original = 'http://test.com/image.png'; 83 | $expected = 'https://cdn1.com/image.png'; 84 | 85 | // Mocks 86 | M::wpFunction( 'is_ssl', [ 'return' => false ] ); 87 | M::wpPassthruFunction( 'esc_url' ); 88 | 89 | // Verify 90 | $this->assertEquals( $expected, $manager->new_url( $original ) ); 91 | } 92 | 93 | public function test_has_domains() { 94 | $manager = DomainManager( 'http://test.com' ); 95 | $this->assertFalse( $manager->has_domains() ); 96 | 97 | $manager->add( 'https://cdn1.com' ); 98 | $this->assertTrue( $manager->has_domains() ); 99 | } 100 | 101 | public function test_default_manager() { 102 | M::wpFunction( 'get_bloginfo', [ 103 | 'args' => ['url'], 104 | 'return' => 'http://test.com' 105 | ] ); 106 | 107 | $manager = DomainManager::current(); 108 | 109 | $regular = DomainManager( 'http://test.com' ); 110 | 111 | $this->assertSame( $manager, $regular ); 112 | } 113 | 114 | public function test_last_manager() { 115 | $manager = DomainManager( 'http://test.com' ); 116 | 117 | $last = DomainManager::last(); 118 | 119 | $this->assertSame( $manager, $last ); 120 | } 121 | } -------------------------------------------------------------------------------- /tests/phpunit/test-tools/TestCase.php: -------------------------------------------------------------------------------- 1 | setPreserveGlobalState( false ); 13 | return parent::run( $result ); 14 | } 15 | 16 | protected $testFiles = array(); 17 | 18 | public function setUp() { 19 | if ( ! empty( $this->testFiles ) ) { 20 | foreach ( $this->testFiles as $file ) { 21 | if ( file_exists( PROJECT . $file ) ) { 22 | require_once( PROJECT . $file ); 23 | } 24 | } 25 | } 26 | 27 | parent::setUp(); 28 | } 29 | 30 | public function assertActionsCalled() { 31 | $actions_not_added = $expected_actions = 0; 32 | try { 33 | WP_Mock::assertActionsCalled(); 34 | } catch ( \Exception $e ) { 35 | $actions_not_added = 1; 36 | $expected_actions = $e->getMessage(); 37 | } 38 | $this->assertEmpty( $actions_not_added, $expected_actions ); 39 | } 40 | 41 | public function ns( $function ) { 42 | if ( ! is_string( $function ) || false !== strpos( $function, '\\' ) ) { 43 | return $function; 44 | } 45 | 46 | $thisClassName = trim( get_class( $this ), '\\' ); 47 | 48 | if ( ! strpos( $thisClassName, '\\' ) ) { 49 | return $function; 50 | } 51 | 52 | // $thisNamespace is constructed by exploding the current class name on 53 | // namespace separators, running array_slice on that array starting at 0 54 | // and ending one element from the end (chops the class name off) and 55 | // imploding that using namespace separators as the glue. 56 | $thisNamespace = implode( '\\', array_slice( explode( '\\', $thisClassName ), 0, - 1 ) ); 57 | 58 | return "$thisNamespace\\$function"; 59 | } 60 | 61 | /** 62 | * Define constants after requires/includes 63 | * 64 | * See http://kpayne.me/2012/07/02/phpunit-process-isolation-and-constant-already-defined/ 65 | * for more details 66 | * 67 | * @param \Text_Template $template 68 | */ 69 | public function prepareTemplate( \Text_Template $template ) { 70 | $template->setVar( [ 71 | 'globals' => '$GLOBALS[\'__PHPUNIT_BOOTSTRAP\'] = \'' . $GLOBALS['__PHPUNIT_BOOTSTRAP'] . '\';', 72 | ] ); 73 | parent::prepareTemplate( $template ); 74 | } 75 | } --------------------------------------------------------------------------------