GAE DOMDocument :: load（）：I / O警告：无法加载外部实体

Question

我试图在GAE上移动现有的webapp。目前，该应用程序正在我的本地SDK上运行。

当应用程序执行兼容性检查时，它会返回错误（由FIREBUG读取）：

这是失败的js的代码：

function checkConfig(){
    // Launch the configuration check procedure only if we can talk JSON
    // with the server side.
    install.sync(function(status, data){
        if (data.value.json == true){
            // Save useful information.

这是另一个日志：

GET http://localhost:13080/tao/api.php?type=Sync 200 OK


<br />
<b>Warning</b>:  DOMDocument::load(): I/O warning : failed to load external entity &quot;C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\services/../../locales/da-DK/lang.rdf&quot; in <b>C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\utils\class.System.php</b> on line <b>90</b><br />
<br />
<b>Warning</b>:  DOMDocument::load(): I/O warning : failed to load external entity &quot;C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\services/../../locales/en-US/lang.rdf&quot; in <b>C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\utils\class.System.php</b> on line <b>90</b><br />
<br />
<b>Warning</b>:  DOMDocument::load(): I/O warning : failed to load external entity &quot;C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\services/../../locales/fr-FR/lang.rdf&quot; in <b>C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\utils\class.System.php</b> on line <b>90</b><br />
<br />
<b>Warning</b>:  DOMDocument::load(): I/O warning : failed to load external entity &quot;C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\services/../../locales/pt-PT/lang.rdf&quot; in <b>C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\utils\class.System.php</b> on line <b>90</b><br />
<br />
<b>Warning</b>:  DOMDocument::load(): I/O warning : failed to load external entity &quot;C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\services/../../locales/sv-SE/lang.rdf&quot; in <b>C:\Users\arcot_000
\Desktop\tao267\tao267v3\tao\install\utils\class.System.php</b> on line <b>90</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at C:\Users
\arcot_000\Desktop\tao267\tao267v3\tao\install\utils\class.System.php:90) in <b>C:\Users\arcot_000\Desktop
\tao267\tao267v3\tao\install\api.php</b> on line <b>245</b><br />
{"type":"SyncReport","value":{"json":true,"rootURL":"https:\/\/localhost:13080\/tao\/api.php","availableDrivers"
:["pdo_mysql"],"availableLanguages":[],"availableTimezones":["Africa\/Abidjan","Africa\/Accra","Africa
\/Addis_Ababa","Africa\/Algiers","Africa\/Asmara","Africa\/Bamako","Africa\/Bangui","Africa\/Banjul"
,"Africa\/Bissau","Africa\/Blantyre","Africa\/Brazzaville","Africa\/Bujumbura","Africa\/Cairo","Africa
\/Casablanca","Africa\/Ceuta","Africa\/Conakry","Africa\/Dakar","Africa\/Dar_es_Salaam","Africa\/Djibouti"
,"Africa\/Douala","Africa\/El_Aaiun","Africa\/Freetown","Africa\/Gaborone","Africa\/Harare","Africa\
/Johannesburg","Africa\/Juba","Africa\/Kampala","Africa\/Khartoum","Africa\/Kigali","Africa\/Kinshasa"
,"Africa\/Lagos","Africa\/Libreville","Africa\/Lome","Africa\/Luanda","Africa\/Lubumbashi","Africa\/Lusaka"
,"Africa\/Malabo","Africa\/Maputo","Africa\/Maseru","Africa\/Mbabane","Africa\/Mogadishu","Africa\/Monrovia"
,"Africa\/Nairobi","Africa\/Ndjamena","Africa\/Niamey","Africa\/Nouakchott","Africa\/Ouagadougou","Africa
\/Porto-Novo","Africa\/Sao_Tome","Africa\/Tripoli","Africa\/Tunis","Africa\/Windhoek","America\/Adak"
,"America\/Anchorage","America\/Anguilla","America\/Antigua","America\/Araguaina","America\/Argentina
\/Buenos_Aires","America\/Argentina\/Catamarca","America\/Argentina\/Cordoba","America\/Argentina\/Jujuy"
,"America\/Argentina\/La_Rioja","America\/Argentina\/Mendoza","America\/Argentina\/Rio_Gallegos","America
\/Argentina\/Salta","America\/Argentina\/San_Juan","America\/Argentina\/San_Luis","America\/Argentina
\/Tucuman","America\/Argentina\/Ushuaia","America\/Aruba","America\/Asuncion","America\/Atikokan","America
\/Bahia","America\/Bahia_Banderas","America\/Barbados","America\/Belem","America\/Belize","America\/Blanc-Sablon"
,"America\/Boa_Vista","America\/Bogota","America\/Boise","America\/Cambridge_Bay","America\/Campo_Grande"
,"America\/Cancun","America\/Caracas","America\/Cayenne","America\/Cayman","America\/Chicago","America
\/Chihuahua","America\/Costa_Rica","America\/Creston","America\/Cuiaba","America\/Curacao","America\
/Danmarkshavn","America\/Dawson","America\/Dawson_Creek","America\/Denver","America\/Detroit","America
\/Dominica","America\/Edmonton","America\/Eirunepe","America\/El_Salvador","America\/Fortaleza","America
\/Glace_Bay","America\/Godthab","America\/Goose_Bay","America\/Grand_Turk","America\/Grenada","America
\/Guadeloupe","America\/Guatemala","America\/Guayaquil","America\/Guyana","America\/Halifax","America
\/Havana","America\/Hermosillo","America\/Indiana\/Indianapolis","America\/Indiana\/Knox","America\/Indiana
\/Marengo","America\/Indiana\/Petersburg","America\/Indiana\/Tell_City","America\/Indiana\/Vevay","America
\/Indiana\/Vincennes","America\/Indiana\/Winamac","America\/Inuvik","America\/Iqaluit","America\/Jamaica"
,"America\/Juneau","America\/Kentucky\/Louisville","America\/Kentucky\/Monticello","America\/Kralendijk"
,"America\/La_Paz","America\/Lima","America\/Los_Angeles","America\/Lower_Princes","America\/Maceio"
,"America\/Managua","America\/Manaus","America\/Marigot","America\/Martinique","America\/Matamoros","America
\/Mazatlan","America\/Menominee","America\/Merida","America\/Metlakatla","America\/Mexico_City","America
\/Miquelon","America\/Moncton","America\/Monterrey","America\/Montevideo","America\/Montserrat","America
\/Nassau","America\/New_York","America\/Nipigon","America\/Nome","America\/Noronha","America\/North_Dakota
\/Beulah","America\/North_Dakota\/Center","America\/North_Dakota\/New_Salem","America\/Ojinaga","America
\/Panama","America\/Pangnirtung","America\/Paramaribo","America\/Phoenix","America\/Port-au-Prince","America
\/Port_of_Spain","America\/Porto_Velho","America\/Puerto_Rico","America\/Rainy_River","America\/Rankin_Inlet"
,"America\/Recife","America\/Regina","America\/Resolute","America\/Rio_Branco","America\/Santa_Isabel"
,"America\/Santarem","America\/Santiago","America\/Santo_Domingo","America\/Sao_Paulo","America\/Scoresbysund"
,"America\/Sitka","America\/St_Barthelemy","America\/St_Johns","America\/St_Kitts","America\/St_Lucia"
,"America\/St_Thomas","America\/St_Vincent","America\/Swift_Current","America\/Tegucigalpa","America
\/Thule","America\/Thunder_Bay","America\/Tijuana","America\/Toronto","America\/Tortola","America\/Vancouver"
,"America\/Whitehorse","America\/Winnipeg","America\/Yakutat","America\/Yellowknife","Antarctica\/Casey"
,"Antarctica\/Davis","Antarctica\/DumontDUrville","Antarctica\/Macquarie","Antarctica\/Mawson","Antarctica
\/McMurdo","Antarctica\/Palmer","Antarctica\/Rothera","Antarctica\/Syowa","Antarctica\/Troll","Antarctica
\/Vostok","Arctic\/Longyearbyen","Asia\/Aden","Asia\/Almaty","Asia\/Amman","Asia\/Anadyr","Asia\/Aqtau"
,"Asia\/Aqtobe","Asia\/Ashgabat","Asia\/Baghdad","Asia\/Bahrain","Asia\/Baku","Asia\/Bangkok","Asia\
/Beirut","Asia\/Bishkek","Asia\/Brunei","Asia\/Chita","Asia\/Choibalsan","Asia\/Colombo","Asia\/Damascus"
,"Asia\/Dhaka","Asia\/Dili","Asia\/Dubai","Asia\/Dushanbe","Asia\/Gaza","Asia\/Hebron","Asia\/Ho_Chi_Minh"
,"Asia\/Hong_Kong","Asia\/Hovd","Asia\/Irkutsk","Asia\/Jakarta","Asia\/Jayapura","Asia\/Jerusalem","Asia
\/Kabul","Asia\/Kamchatka","Asia\/Karachi","Asia\/Kathmandu","Asia\/Khandyga","Asia\/Kolkata","Asia\
/Krasnoyarsk","Asia\/Kuala_Lumpur","Asia\/Kuching","Asia\/Kuwait","Asia\/Macau","Asia\/Magadan","Asia
\/Makassar","Asia\/Manila","Asia\/Muscat","Asia\/Nicosia","Asia\/Novokuznetsk","Asia\/Novosibirsk","Asia
\/Omsk","Asia\/Oral","Asia\/Phnom_Penh","Asia\/Pontianak","Asia\/Pyongyang","Asia\/Qatar","Asia\/Qyzylorda"
,"Asia\/Rangoon","Asia\/Riyadh","Asia\/Sakhalin","Asia\/Samarkand","Asia\/Seoul","Asia\/Shanghai","Asia
\/Singapore","Asia\/Srednekolymsk","Asia\/Taipei","Asia\/Tashkent","Asia\/Tbilisi","Asia\/Tehran","Asia
\/Thimphu","Asia\/Tokyo","Asia\/Ulaanbaatar","Asia\/Urumqi","Asia\/Ust-Nera","Asia\/Vientiane","Asia
\/Vladivostok","Asia\/Yakutsk","Asia\/Yekaterinburg","Asia\/Yerevan","Atlantic\/Azores","Atlantic\/Bermuda"
,"Atlantic\/Canary","Atlantic\/Cape_Verde","Atlantic\/Faroe","Atlantic\/Madeira","Atlantic\/Reykjavik"
,"Atlantic\/South_Georgia","Atlantic\/St_Helena","Atlantic\/Stanley","Australia\/Adelaide","Australia
\/Brisbane","Australia\/Broken_Hill","Australia\/Currie","Australia\/Darwin","Australia\/Eucla","Australia
\/Hobart","Australia\/Lindeman","Australia\/Lord_Howe","Australia\/Melbourne","Australia\/Perth","Australia
\/Sydney","Europe\/Amsterdam","Europe\/Andorra","Europe\/Athens","Europe\/Belgrade","Europe\/Berlin"
,"Europe\/Bratislava","Europe\/Brussels","Europe\/Bucharest","Europe\/Budapest","Europe\/Busingen","Europe
\/Chisinau","Europe\/Copenhagen","Europe\/Dublin","Europe\/Gibraltar","Europe\/Guernsey","Europe\/Helsinki"
,"Europe\/Isle_of_Man","Europe\/Istanbul","Europe\/Jersey","Europe\/Kaliningrad","Europe\/Kiev","Europe
\/Lisbon","Europe\/Ljubljana","Europe\/London","Europe\/Luxembourg","Europe\/Madrid","Europe\/Malta"
,"Europe\/Mariehamn","Europe\/Minsk","Europe\/Monaco","Europe\/Moscow","Europe\/Oslo","Europe\/Paris"
,"Europe\/Podgorica","Europe\/Prague","Europe\/Riga","Europe\/Rome","Europe\/Samara","Europe\/San_Marino"
,"Europe\/Sarajevo","Europe\/Simferopol","Europe\/Skopje","Europe\/Sofia","Europe\/Stockholm","Europe
\/Tallinn","Europe\/Tirane","Europe\/Uzhgorod","Europe\/Vaduz","Europe\/Vatican","Europe\/Vienna","Europe
\/Vilnius","Europe\/Volgograd","Europe\/Warsaw","Europe\/Zagreb","Europe\/Zaporozhye","Europe\/Zurich"
,"Indian\/Antananarivo","Indian\/Chagos","Indian\/Christmas","Indian\/Cocos","Indian\/Comoro","Indian
\/Kerguelen","Indian\/Mahe","Indian\/Maldives","Indian\/Mauritius","Indian\/Mayotte","Indian\/Reunion"
,"Pacific\/Apia","Pacific\/Auckland","Pacific\/Chatham","Pacific\/Chuuk","Pacific\/Easter","Pacific\
/Efate","Pacific\/Enderbury","Pacific\/Fakaofo","Pacific\/Fiji","Pacific\/Funafuti","Pacific\/Galapagos"
,"Pacific\/Gambier","Pacific\/Guadalcanal","Pacific\/Guam","Pacific\/Honolulu","Pacific\/Johnston","Pacific
\/Kiritimati","Pacific\/Kosrae","Pacific\/Kwajalein","Pacific\/Majuro","Pacific\/Marquesas","Pacific
\/Midway","Pacific\/Nauru","Pacific\/Niue","Pacific\/Norfolk","Pacific\/Noumea","Pacific\/Pago_Pago"
,"Pacific\/Palau","Pacific\/Pitcairn","Pacific\/Pohnpei","Pacific\/Port_Moresby","Pacific\/Rarotonga"
,"Pacific\/Saipan","Pacific\/Tahiti","Pacific\/Tarawa","Pacific\/Tongatapu","Pacific\/Wake","Pacific
\/Wallis","UTC"]}}

我需要为JSON支持配置一些东西吗？

Answer 1

出于安全原因，GAE默认禁用外部XML实体加载（有关详细信息，请参阅https://cloud.google.com/appengine/docs/php/#PHP_Functions_that_may_be_manually_enabled）。在加载XML之前，您需要调用libxml_disable_entity_loader(false)。