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t=Rt.nodePermissions(e,"x");return t||(e.node_ops.lookup?0:2)},mayCreate:function(e,t){try{return Rt.lookupNode(e,t),20}catch(e){}return Rt.nodePermissions(e,"wx")},mayDelete:function(e,t,r){var n;try{n=Rt.lookupNode(e,t)}catch(e){return e.errno}var o=Rt.nodePermissions(e,"wx");if(o)return o;if(r){if(!Rt.isDir(n.mode))return 54;if(Rt.isRoot(n)||Rt.getPath(n)===Rt.cwd())return 10}else if(Rt.isDir(n.mode))return 31;return 0},mayOpen:function(e,t){return e?Rt.isLink(e.mode)?32:Rt.isDir(e.mode)&&("r"!==Rt.flagsToPermissionString(t)||512&t)?31:Rt.nodePermissions(e,Rt.flagsToPermissionString(t)):44},MAX_OPEN_FDS:4096,nextfd:function(){for(var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:Rt.MAX_OPEN_FDS,r=e;r<=t;r++)if(!Rt.streams[r])return r;throw new Rt.ErrnoError(33)},getStream:function(e){return Rt.streams[e]},createStream:function(e,t,r){Rt.FSStream||(Rt.FSStream=function(){this.shared={}},Rt.FSStream.prototype={},Object.defineProperties(Rt.FSStream.prototype,{object:{get:function(){return this.node},set:function(e){this.node=e}},isRead:{get:function(){return 1!=(2097155&this.flags)}},isWrite:{get:function(){return 0!=(2097155&this.flags)}},isAppend:{get:function(){return 1024&this.flags}},flags:{get:function(){return this.shared.flags},set:function(e){this.shared.flags=e}},position:{get:function(){return this.shared.position},set:function(e){this.shared.position=e}}})),e=Object.assign(new Rt.FSStream,e);var n=Rt.nextfd(t,r);return e.fd=n,Rt.streams[n]=e,e},closeStream:function(e){Rt.streams[e]=null},chrdev_stream_ops:{open:function(e){var t=Rt.getDevice(e.node.rdev);e.stream_ops=t.stream_ops,e.stream_ops.open&&e.stream_ops.open(e)},llseek:function(){throw new Rt.ErrnoError(70)}},major:function(e){return e>>8},minor:function(e){return 255&e},makedev:function(e,t){return e<<8|t},registerDevice:function(e,t){Rt.devices[e]={stream_ops:t}},getDevice:function(e){return Rt.devices[e]},getMounts:function(e){for(var t=[],r=[e];r.length;){var n=r.pop();t.push(n),r.push.apply(r,n.mounts)}return t},syncfs:function(e,t){"function"==typeof e&&(t=e,e=!1),Rt.syncFSRequests++,Rt.syncFSRequests>1&&_("warning: "+Rt.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work");var r=Rt.getMounts(Rt.root.mount),n=0;function o(e){return Rt.syncFSRequests--,t(e)}function i(e){if(e)return i.errored?void 0:(i.errored=!0,o(e));++n>=r.length&&o(null)}r.forEach((function(t){if(!t.type.syncfs)return i(null);t.type.syncfs(t,e,i)}))},mount:function(e,t,r){var n,o="/"===r,i=!r;if(o&&Rt.root)throw new Rt.ErrnoError(10);if(!o&&!i){var a=Rt.lookupPath(r,{follow_mount:!1});if(r=a.path,n=a.node,Rt.isMountpoint(n))throw new Rt.ErrnoError(10);if(!Rt.isDir(n.mode))throw new Rt.ErrnoError(54)}var s={type:e,opts:t,mountpoint:r,mounts:[]},u=e.mount(s);return u.mount=s,s.root=u,o?Rt.root=u:n&&(n.mounted=s,n.mount&&n.mount.mounts.push(s)),u},unmount:function(e){var t=Rt.lookupPath(e,{follow_mount:!1});if(!Rt.isMountpoint(t.node))throw new Rt.ErrnoError(28);var r=t.node,n=r.mounted,o=Rt.getMounts(n);Object.keys(Rt.nameTable).forEach((function(e){for(var t=Rt.nameTable[e];t;){var r=t.name_next;o.includes(t.mount)&&Rt.destroyNode(t),t=r}})),r.mounted=null;var i=r.mount.mounts.indexOf(n);r.mount.mounts.splice(i,1)},lookup:function(e,t){return e.node_ops.lookup(e,t)},mknod:function(e,t,r){var n=Rt.lookupPath(e,{parent:!0}).node,o=Ft.basename(e);if(!o||"."===o||".."===o)throw new Rt.ErrnoError(28);var i=Rt.mayCreate(n,o);if(i)throw new Rt.ErrnoError(i);if(!n.node_ops.mknod)throw new Rt.ErrnoError(63);return n.node_ops.mknod(n,o,t,r)},create:function(e,t){return t=void 0!==t?t:438,t&=4095,t|=32768,Rt.mknod(e,t,0)},mkdir:function(e,t){return t=void 0!==t?t:511,t&=1023,t|=16384,Rt.mknod(e,t,0)},mkdirTree:function(e,t){for(var r=e.split("/"),n="",o=0;o<r.length;++o)if(r[o]){n+="/"+r[o];try{Rt.mkdir(n,t)}catch(e){if(20!=e.errno)throw e}}},mkdev:function(e,t,r){return void 0===r&&(r=t,t=438),t|=8192,Rt.mknod(e,t,r)},symlink:function(e,t){if(!Mt.resolve(e))throw new Rt.ErrnoError(44);var r=Rt.lookupPath(t,{parent:!0}).node;if(!r)throw new Rt.ErrnoError(44);var n=Ft.basename(t),o=Rt.mayCreate(r,n);if(o)throw new Rt.ErrnoError(o);if(!r.node_ops.symlink)throw new Rt.ErrnoError(63);return r.node_ops.symlink(r,n,e)},rename:function(e,t){var r,n,o=Ft.dirname(e),i=Ft.dirname(t),a=Ft.basename(e),s=Ft.basename(t);if(r=Rt.lookupPath(e,{parent:!0}).node,n=Rt.lookupPath(t,{parent:!0}).node,!r||!n)throw new Rt.ErrnoError(44);if(r.mount!==n.mount)throw new Rt.ErrnoError(75);var u,c=Rt.lookupNode(r,a),f=Mt.relative(e,i);if("."!==f.charAt(0))throw new Rt.ErrnoError(28);if("."!==(f=Mt.relative(t,o)).charAt(0))throw new Rt.ErrnoError(55);try{u=Rt.lookupNode(n,s)}catch(e){}if(c!==u){var l=Rt.isDir(c.mode),d=Rt.mayDelete(r,a,l);if(d)throw new Rt.ErrnoError(d);if(d=u?Rt.mayDelete(n,s,l):Rt.mayCreate(n,s))throw new Rt.ErrnoError(d);if(!r.node_ops.rename)throw new Rt.ErrnoError(63);if(Rt.isMountpoint(c)||u&&Rt.isMountpoint(u))throw new Rt.ErrnoError(10);if(n!==r&&(d=Rt.nodePermissions(r,"w")))throw new Rt.ErrnoError(d);Rt.hashRemoveNode(c);try{r.node_ops.rename(c,n,s)}catch(e){throw e}finally{Rt.hashAddNode(c)}}},rmdir:function(e){var t=Rt.lookupPath(e,{parent:!0}).node,r=Ft.basename(e),n=Rt.lookupNode(t,r),o=Rt.mayDelete(t,r,!0);if(o)throw new Rt.ErrnoError(o);if(!t.node_ops.rmdir)throw new Rt.ErrnoError(63);if(Rt.isMountpoint(n))throw new Rt.ErrnoError(10);t.node_ops.rmdir(t,r),Rt.destroyNode(n)},readdir:function(e){var t=Rt.lookupPath(e,{follow:!0}).node;if(!t.node_ops.readdir)throw new Rt.ErrnoError(54);return t.node_ops.readdir(t)},unlink:function(e){var t=Rt.lookupPath(e,{parent:!0}).node;if(!t)throw new Rt.ErrnoError(44);var r=Ft.basename(e),n=Rt.lookupNode(t,r),o=Rt.mayDelete(t,r,!1);if(o)throw new Rt.ErrnoError(o);if(!t.node_ops.unlink)throw new Rt.ErrnoError(63);if(Rt.isMountpoint(n))throw new Rt.ErrnoError(10);t.node_ops.unlink(t,r),Rt.destroyNode(n)},readlink:function(e){var t=Rt.lookupPath(e).node;if(!t)throw new Rt.ErrnoError(44);if(!t.node_ops.readlink)throw new Rt.ErrnoError(28);return Mt.resolve(Rt.getPath(t.parent),t.node_ops.readlink(t))},stat:function(e,t){var r=Rt.lookupPath(e,{follow:!t}).node;if(!r)throw new Rt.ErrnoError(44);if(!r.node_ops.getattr)throw new Rt.ErrnoError(63);return r.node_ops.getattr(r)},lstat:function(e){return Rt.stat(e,!0)},chmod:function(e,t,r){var n;if(!(n="string"==typeof e?Rt.lookupPath(e,{follow:!r}).node:e).node_ops.setattr)throw new Rt.ErrnoError(63);n.node_ops.setattr(n,{mode:4095&t|-4096&n.mode,timestamp:Date.now()})},lchmod:function(e,t){Rt.chmod(e,t,!0)},fchmod:function(e,t){var r=Rt.getStream(e);if(!r)throw new Rt.ErrnoError(8);Rt.chmod(r.node,t)},chown:function(e,t,r,n){var o;if(!(o="string"==typeof e?Rt.lookupPath(e,{follow:!n}).node:e).node_ops.setattr)throw new Rt.ErrnoError(63);o.node_ops.setattr(o,{timestamp:Date.now()})},lchown:function(e,t,r){Rt.chown(e,t,r,!0)},fchown:function(e,t,r){var n=Rt.getStream(e);if(!n)throw new Rt.ErrnoError(8);Rt.chown(n.node,t,r)},truncate:function(e,t){if(t<0)throw new Rt.ErrnoError(28);var r;if(!(r="string"==typeof e?Rt.lookupPath(e,{follow:!0}).node:e).node_ops.setattr)throw new Rt.ErrnoError(63);if(Rt.isDir(r.mode))throw new Rt.ErrnoError(31);if(!Rt.isFile(r.mode))throw new Rt.ErrnoError(28);var n=Rt.nodePermissions(r,"w");if(n)throw new Rt.ErrnoError(n);r.node_ops.setattr(r,{size:t,timestamp:Date.now()})},ftruncate:function(e,t){var r=Rt.getStream(e);if(!r)throw new Rt.ErrnoError(8);if(0==(2097155&r.flags))throw new Rt.ErrnoError(28);Rt.truncate(r.node,t)},utime:function(e,t,r){var n=Rt.lookupPath(e,{follow:!0}).node;n.node_ops.setattr(n,{timestamp:Math.max(t,r)})},open:function(t,r,n){if(""===t)throw new Rt.ErrnoError(44);var i;if(n=void 0===n?438:n,n=64&(r="string"==typeof r?Rt.modeStringToFlags(r):r)?4095&n|32768:0,"object"==o(t))i=t;else{t=Ft.normalize(t);try{i=Rt.lookupPath(t,{follow:!(131072&r)}).node}catch(e){}}var a=!1;if(64&r)if(i){if(128&r)throw new Rt.ErrnoError(20)}else i=Rt.mknod(t,n,0),a=!0;if(!i)throw new Rt.ErrnoError(44);if(Rt.isChrdev(i.mode)&&(r&=-513),65536&r&&!Rt.isDir(i.mode))throw new Rt.ErrnoError(54);if(!a){var s=Rt.mayOpen(i,r);if(s)throw new Rt.ErrnoError(s)}512&r&&!a&&Rt.truncate(i,0),r&=-131713;var u=Rt.createStream({node:i,path:Rt.getPath(i),flags:r,seekable:!0,position:0,stream_ops:i.stream_ops,ungotten:[],error:!1});return u.stream_ops.open&&u.stream_ops.open(u),!e.logReadFiles||1&r||(Rt.readFiles||(Rt.readFiles={}),t in Rt.readFiles||(Rt.readFiles[t]=1)),u},close:function(e){if(Rt.isClosed(e))throw new Rt.ErrnoError(8);e.getdents&&(e.getdents=null);try{e.stream_ops.close&&e.stream_ops.close(e)}catch(e){throw e}finally{Rt.closeStream(e.fd)}e.fd=null},isClosed:function(e){return null===e.fd},llseek:function(e,t,r){if(Rt.isClosed(e))throw new Rt.ErrnoError(8);if(!e.seekable||!e.stream_ops.llseek)throw new Rt.ErrnoError(70);if(0!=r&&1!=r&&2!=r)throw new Rt.ErrnoError(28);return e.position=e.stream_ops.llseek(e,t,r),e.ungotten=[],e.position},read:function(e,t,r,n,o){if(n<0||o<0)throw new Rt.ErrnoError(28);if(Rt.isClosed(e))throw new Rt.ErrnoError(8);if(1==(2097155&e.flags))throw new Rt.ErrnoError(8);if(Rt.isDir(e.node.mode))throw new Rt.ErrnoError(31);if(!e.stream_ops.read)throw new Rt.ErrnoError(28);var i=void 0!==o;if(i){if(!e.seekable)throw new Rt.ErrnoError(70)}else o=e.position;var a=e.stream_ops.read(e,t,r,n,o);return i||(e.position+=a),a},write:function(e,t,r,n,o,i){if(n<0||o<0)throw new Rt.ErrnoError(28);if(Rt.isClosed(e))throw new Rt.ErrnoError(8);if(0==(2097155&e.flags))throw new Rt.ErrnoError(8);if(Rt.isDir(e.node.mode))throw new Rt.ErrnoError(31);if(!e.stream_ops.write)throw new Rt.ErrnoError(28);e.seekable&&1024&e.flags&&Rt.llseek(e,0,2);var a=void 0!==o;if(a){if(!e.seekable)throw new Rt.ErrnoError(70)}else o=e.position;var s=e.stream_ops.write(e,t,r,n,o,i);return a||(e.position+=s),s},allocate:function(e,t,r){if(Rt.isClosed(e))throw new Rt.ErrnoError(8);if(t<0||r<=0)throw new Rt.ErrnoError(28);if(0==(2097155&e.flags))throw new Rt.ErrnoError(8);if(!Rt.isFile(e.node.mode)&&!Rt.isDir(e.node.mode))throw new Rt.ErrnoError(43);if(!e.stream_ops.allocate)throw new Rt.ErrnoError(138);e.stream_ops.allocate(e,t,r)},mmap:function(e,t,r,n,o){if(0!=(2&n)&&0==(2&o)&&2!=(2097155&e.flags))throw new Rt.ErrnoError(2);if(1==(2097155&e.flags))throw new Rt.ErrnoError(2);if(!e.stream_ops.mmap)throw new Rt.ErrnoError(43);return e.stream_ops.mmap(e,t,r,n,o)},msync:function(e,t,r,n,o){return e&&e.stream_ops.msync?e.stream_ops.msync(e,t,r,n,o):0},munmap:function(e){return 0},ioctl:function(e,t,r){if(!e.stream_ops.ioctl)throw new Rt.ErrnoError(59);return e.stream_ops.ioctl(e,t,r)},readFile:function(e){var t,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(r.flags=r.flags||0,r.encoding=r.encoding||"binary","utf8"!==r.encoding&&"binary"!==r.encoding)throw new Error('Invalid encoding type "'+r.encoding+'"');var n=Rt.open(e,r.flags),o=Rt.stat(e).size,i=new Uint8Array(o);return Rt.read(n,i,0,o,0),"utf8"===r.encoding?t=j(i,0):"binary"===r.encoding&&(t=i),Rt.close(n),t},writeFile:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};r.flags=r.flags||577;var n=Rt.open(e,r.flags,r.mode);if("string"==typeof t){var o=new Uint8Array(N(t)+1),i=R(t,o,0,o.length);Rt.write(n,o,0,i,void 0,r.canOwn)}else{if(!ArrayBuffer.isView(t))throw new Error("Unsupported data type");Rt.write(n,t,0,t.byteLength,void 0,r.canOwn)}Rt.close(n)},cwd:function(){return Rt.currentPath},chdir:function(e){var t=Rt.lookupPath(e,{follow:!0});if(null===t.node)throw new Rt.ErrnoError(44);if(!Rt.isDir(t.node.mode))throw new Rt.ErrnoError(54);var r=Rt.nodePermissions(t.node,"x");if(r)throw new Rt.ErrnoError(r);Rt.currentPath=t.path},createDefaultDirectories:function(){Rt.mkdir("/tmp"),Rt.mkdir("/home"),Rt.mkdir("/home/web_user")},createDefaultDevices:function(){Rt.mkdir("/dev"),Rt.registerDevice(Rt.makedev(1,3),{read:function(){return 0},write:function(e,t,r,n,o){return n}}),Rt.mkdev("/dev/null",Rt.makedev(1,3)),xt.register(Rt.makedev(5,0),xt.default_tty_ops),xt.register(Rt.makedev(6,0),xt.default_tty1_ops),Rt.mkdev("/dev/tty",Rt.makedev(5,0)),Rt.mkdev("/dev/tty1",Rt.makedev(6,0));var e=function(){if("object"==("undefined"==typeof crypto?"undefined":o(crypto))&&"function"==typeof crypto.getRandomValues){var e=new Uint8Array(1);return function(){return crypto.getRandomValues(e),e[0]}}if(m)try{var t=require("crypto");return function(){return t.randomBytes(1)[0]}}catch(e){}return function(){return V("randomDevice")}}();Rt.createDevice("/dev","random",e),Rt.createDevice("/dev","urandom",e),Rt.mkdir("/dev/shm"),Rt.mkdir("/dev/shm/tmp")},createSpecialDirectories:function(){Rt.mkdir("/proc");var e=Rt.mkdir("/proc/self");Rt.mkdir("/proc/self/fd"),Rt.mount({mount:function(){var t=Rt.createNode(e,"fd",16895,73);return t.node_ops={lookup:function(e,t){var r=+t,n=Rt.getStream(r);if(!n)throw new Rt.ErrnoError(8);var o={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:function(){return n.path}}};return o.parent=o,o}},t}},{},"/proc/self/fd")},createStandardStreams:function(){e.stdin?Rt.createDevice("/dev","stdin",e.stdin):Rt.symlink("/dev/tty","/dev/stdin"),e.stdout?Rt.createDevice("/dev","stdout",null,e.stdout):Rt.symlink("/dev/tty","/dev/stdout"),e.stderr?Rt.createDevice("/dev","stderr",null,e.stderr):Rt.symlink("/dev/tty1","/dev/stderr"),Rt.open("/dev/stdin",0),Rt.open("/dev/stdout",1),Rt.open("/dev/stderr",1)},ensureErrnoError:function(){Rt.ErrnoError||(Rt.ErrnoError=function(e,t){this.node=t,this.setErrno=function(e){this.errno=e},this.setErrno(e),this.message="FS error"},Rt.ErrnoError.prototype=new Error,Rt.ErrnoError.prototype.constructor=Rt.ErrnoError,[44].forEach((function(e){Rt.genericErrors[e]=new Rt.ErrnoError(e),Rt.genericErrors[e].stack="<generic error, no stack>"})))},staticInit:function(){Rt.ensureErrnoError(),Rt.nameTable=new Array(4096),Rt.mount($t,{},"/"),Rt.createDefaultDirectories(),Rt.createDefaultDevices(),Rt.createSpecialDirectories(),Rt.filesystems={MEMFS:$t}},init:function(t,r,n){Rt.init.initialized=!0,Rt.ensureErrnoError(),e.stdin=t||e.stdin,e.stdout=r||e.stdout,e.stderr=n||e.stderr,Rt.createStandardStreams()},quit:function(){Rt.init.initialized=!1;for(var e=0;e<Rt.streams.length;e++){var t=Rt.streams[e];t&&Rt.close(t)}},getMode:function(e,t){var r=0;return e&&(r|=365),t&&(r|=146),r},findObject:function(e,t){var r=Rt.analyzePath(e,t);return r.exists?r.object:null},analyzePath:function(e,t){try{e=(n=Rt.lookupPath(e,{follow:!t})).path}catch(e){}var r={isRoot:!1,exists:!1,error:0,name:null,path:null,object:null,parentExists:!1,parentPath:null,parentObject:null};try{var n=Rt.lookupPath(e,{parent:!0});r.parentExists=!0,r.parentPath=n.path,r.parentObject=n.node,r.name=Ft.basename(e),n=Rt.lookupPath(e,{follow:!t}),r.exists=!0,r.path=n.path,r.object=n.node,r.name=n.node.name,r.isRoot="/"===n.path}catch(e){r.error=e.errno}return r},createPath:function(e,t,r,n){e="string"==typeof e?e:Rt.getPath(e);for(var o=t.split("/").reverse();o.length;){var i=o.pop();if(i){var a=Ft.join2(e,i);try{Rt.mkdir(a)}catch(e){}e=a}}return a},createFile:function(e,t,r,n,o){var i=Ft.join2("string"==typeof e?e:Rt.getPath(e),t),a=Rt.getMode(n,o);return Rt.create(i,a)},createDataFile:function(e,t,r,n,o,i){var a=t;e&&(e="string"==typeof e?e:Rt.getPath(e),a=t?Ft.join2(e,t):e);var s=Rt.getMode(n,o),u=Rt.create(a,s);if(r){if("string"==typeof r){for(var c=new Array(r.length),f=0,l=r.length;f<l;++f)c[f]=r.charCodeAt(f);r=c}Rt.chmod(u,146|s);var d=Rt.open(u,577);Rt.write(d,r,0,r.length,0,i),Rt.close(d),Rt.chmod(u,s)}return u},createDevice:function(e,t,r,n){var o=Ft.join2("string"==typeof e?e:Rt.getPath(e),t),i=Rt.getMode(!!r,!!n);Rt.createDevice.major||(Rt.createDevice.major=64);var a=Rt.makedev(Rt.createDevice.major++,0);return Rt.registerDevice(a,{open:function(e){e.seekable=!1},close:function(e){n&&n.buffer&&n.buffer.length&&n(10)},read:function(e,t,n,o,i){for(var a=0,s=0;s<o;s++){var u;try{u=r()}catch(e){throw new Rt.ErrnoError(29)}if(void 0===u&&0===a)throw new Rt.ErrnoError(6);if(null==u)break;a++,t[n+s]=u}return a&&(e.node.timestamp=Date.now()),a},write:function(e,t,r,o,i){for(var a=0;a<o;a++)try{n(t[r+a])}catch(e){throw new Rt.ErrnoError(29)}return o&&(e.node.timestamp=Date.now()),a}}),Rt.mkdev(o,i,a)},forceLoadFile:function(e){if(e.isDevice||e.isFolder||e.link||e.contents)return!0;if("undefined"!=typeof XMLHttpRequest)throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. 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