nextcloud/core/vendor/davclient.js/lib/client.js

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/*
* vim: expandtab shiftwidth=4 softtabstop=4
*/
/* global dav */
if (typeof dav == 'undefined') { dav = {}; };
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dav._XML_CHAR_MAP = {
'<': '&lt;',
'>': '&gt;',
'&': '&amp;',
'"': '&quot;',
"'": '&apos;'
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};
dav._escapeXml = function(s) {
return s.replace(/[<>&"']/g, function (ch) {
return dav._XML_CHAR_MAP[ch];
});
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};
dav.Client = function(options) {
var i;
for(i in options) {
this[i] = options[i];
}
};
dav.Client.prototype = {
baseUrl : null,
userName : null,
password : null,
xmlNamespaces : {
'DAV:' : 'd'
},
/**
* Generates a propFind request.
*
* @param {string} url Url to do the propfind request on
* @param {Array} properties List of properties to retrieve.
* @param {Object} [headers] headers
* @return {Promise}
*/
propFind : function(url, properties, depth, headers) {
if(typeof depth == "undefined") {
depth = 0;
}
headers = headers || {};
headers['Depth'] = depth;
headers['Content-Type'] = 'application/xml; charset=utf-8';
var body =
'<?xml version="1.0"?>\n' +
'<d:propfind ';
var namespace;
for (namespace in this.xmlNamespaces) {
body += ' xmlns:' + this.xmlNamespaces[namespace] + '="' + namespace + '"';
}
body += '>\n' +
' <d:prop>\n';
for(var ii in properties) {
var property = this.parseClarkNotation(properties[ii]);
if (this.xmlNamespaces[property.namespace]) {
body+=' <' + this.xmlNamespaces[property.namespace] + ':' + property.name + ' />\n';
} else {
body+=' <x:' + property.name + ' xmlns:x="' + property.namespace + '" />\n';
}
}
body+=' </d:prop>\n';
body+='</d:propfind>';
return this.request('PROPFIND', url, headers, body).then(
function(result) {
if (depth===0) {
return {
status: result.status,
body: result.body[0],
xhr: result.xhr
};
} else {
return {
status: result.status,
body: result.body,
xhr: result.xhr
};
}
}.bind(this)
);
},
/**
* Renders a "d:set" block for the given properties.
*
* @param {Object.<String,String>} properties
* @return {String} XML "<d:set>" block
*/
_renderPropSet: function(properties) {
var body = ' <d:set>\n' +
' <d:prop>\n';
for(var ii in properties) {
var property = this.parseClarkNotation(ii);
var propName;
var propValue = properties[ii];
if (this.xmlNamespaces[property.namespace]) {
propName = this.xmlNamespaces[property.namespace] + ':' + property.name;
} else {
propName = 'x:' + property.name + ' xmlns:x="' + property.namespace + '"';
}
// FIXME: hard-coded for now until we allow properties to
// specify whether to be escaped or not
if (propName !== 'd:resourcetype') {
propValue = dav._escapeXml(propValue);
}
body += ' <' + propName + '>' + propValue + '</' + propName + '>\n';
}
body +=' </d:prop>\n';
body +=' </d:set>\n';
return body;
},
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/**
* Generates a propPatch request.
*
* @param {string} url Url to do the proppatch request on
* @param {Object.<String,String>} properties List of properties to store.
* @param {Object} [headers] headers
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* @return {Promise}
*/
propPatch : function(url, properties, headers) {
headers = headers || {};
headers['Content-Type'] = 'application/xml; charset=utf-8';
var body =
'<?xml version="1.0"?>\n' +
'<d:propertyupdate ';
var namespace;
for (namespace in this.xmlNamespaces) {
body += ' xmlns:' + this.xmlNamespaces[namespace] + '="' + namespace + '"';
}
body += '>\n' + this._renderPropSet(properties);
body += '</d:propertyupdate>';
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return this.request('PROPPATCH', url, headers, body).then(
function(result) {
return {
status: result.status,
body: result.body,
xhr: result.xhr
};
}.bind(this)
);
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},
/**
* Generates a MKCOL request.
* If attributes are given, it will use an extended MKCOL request.
*
* @param {string} url Url to do the proppatch request on
* @param {Object.<String,String>} [properties] list of properties to store.
* @param {Object} [headers] headers
* @return {Promise}
*/
mkcol : function(url, properties, headers) {
var body = '';
headers = headers || {};
headers['Content-Type'] = 'application/xml; charset=utf-8';
if (properties) {
body =
'<?xml version="1.0"?>\n' +
'<d:mkcol';
var namespace;
for (namespace in this.xmlNamespaces) {
body += ' xmlns:' + this.xmlNamespaces[namespace] + '="' + namespace + '"';
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}
body += '>\n' + this._renderPropSet(properties);
body +='</d:mkcol>';
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}
return this.request('MKCOL', url, headers, body).then(
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function(result) {
return {
status: result.status,
body: result.body,
xhr: result.xhr
};
}.bind(this)
);
},
/**
* Performs a HTTP request, and returns a Promise
*
* @param {string} method HTTP method
* @param {string} url Relative or absolute url
* @param {Object} headers HTTP headers as an object.
* @param {string} body HTTP request body.
* @return {Promise}
*/
request : function(method, url, headers, body) {
var self = this;
var xhr = this.xhrProvider();
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headers = headers || {};
if (this.userName) {
headers['Authorization'] = 'Basic ' + btoa(this.userName + ':' + this.password);
// xhr.open(method, this.resolveUrl(url), true, this.userName, this.password);
}
xhr.open(method, this.resolveUrl(url), true);
var ii;
for(ii in headers) {
xhr.setRequestHeader(ii, headers[ii]);
}
// Work around for edge
if (body === undefined) {
xhr.send();
} else {
xhr.send(body);
}
return new Promise(function(fulfill, reject) {
xhr.onreadystatechange = function() {
if (xhr.readyState !== 4) {
return;
}
var resultBody = xhr.response;
if (xhr.status === 207) {
resultBody = self.parseMultiStatus(xhr.response);
}
fulfill({
body: resultBody,
status: xhr.status,
xhr: xhr
});
};
xhr.ontimeout = function() {
reject(new Error('Timeout exceeded'));
};
});
},
/**
* Returns an XMLHttpRequest object.
*
* This is in its own method, so it can be easily overridden.
*
* @return {XMLHttpRequest}
*/
xhrProvider : function() {
return new XMLHttpRequest();
},
/**
* Parses a property node.
*
* Either returns a string if the node only contains text, or returns an
* array of non-text subnodes.
*
* @param {Object} propNode node to parse
* @return {string|Array} text content as string or array of subnodes, excluding text nodes
*/
_parsePropNode: function(propNode) {
var content = null;
if (propNode.childNodes && propNode.childNodes.length > 0) {
var subNodes = [];
// filter out text nodes
for (var j = 0; j < propNode.childNodes.length; j++) {
var node = propNode.childNodes[j];
if (node.nodeType === 1) {
subNodes.push(node);
}
}
if (subNodes.length) {
content = subNodes;
}
}
return content || propNode.textContent || propNode.text || '';
},
/**
* Parses a multi-status response body.
*
* @param {string} xmlBody
* @param {Array}
*/
parseMultiStatus : function(xmlBody) {
var parser = new DOMParser();
var doc = parser.parseFromString(xmlBody, "application/xml");
var resolver = function(foo) {
var ii;
for(ii in this.xmlNamespaces) {
if (this.xmlNamespaces[ii] === foo) {
return ii;
}
}
}.bind(this);
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var responseIterator = doc.evaluate('/d:multistatus/d:response', doc, resolver, XPathResult.ANY_TYPE, null);
var result = [];
var responseNode = responseIterator.iterateNext();
while(responseNode) {
var response = {
href : null,
propStat : []
};
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response.href = doc.evaluate('string(d:href)', responseNode, resolver, XPathResult.ANY_TYPE, null).stringValue;
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var propStatIterator = doc.evaluate('d:propstat', responseNode, resolver, XPathResult.ANY_TYPE, null);
var propStatNode = propStatIterator.iterateNext();
while(propStatNode) {
var propStat = {
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status : doc.evaluate('string(d:status)', propStatNode, resolver, XPathResult.ANY_TYPE, null).stringValue,
properties : {},
};
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var propIterator = doc.evaluate('d:prop/*', propStatNode, resolver, XPathResult.ANY_TYPE, null);
var propNode = propIterator.iterateNext();
while(propNode) {
var content = this._parsePropNode(propNode);
propStat.properties['{' + propNode.namespaceURI + '}' + propNode.localName] = content;
propNode = propIterator.iterateNext();
}
response.propStat.push(propStat);
propStatNode = propStatIterator.iterateNext();
}
result.push(response);
responseNode = responseIterator.iterateNext();
}
return result;
},
/**
* Takes a relative url, and maps it to an absolute url, using the baseUrl
*
* @param {string} url
* @return {string}
*/
resolveUrl : function(url) {
// Note: this is rudamentary.. not sure yet if it handles every case.
if (/^https?:\/\//i.test(url)) {
// absolute
return url;
}
var baseParts = this.parseUrl(this.baseUrl);
if (url.charAt('/')) {
// Url starts with a slash
return baseParts.root + url;
}
// Url does not start with a slash, we need grab the base url right up until the last slash.
var newUrl = baseParts.root + '/';
if (baseParts.path.lastIndexOf('/')!==-1) {
newUrl = newUrl = baseParts.path.subString(0, baseParts.path.lastIndexOf('/')) + '/';
}
newUrl+=url;
return url;
},
/**
* Parses a url and returns its individual components.
*
* @param {String} url
* @return {Object}
*/
parseUrl : function(url) {
var parts = url.match(/^(?:([A-Za-z]+):)?(\/{0,3})([0-9.\-A-Za-z]+)(?::(\d+))?(?:\/([^?#]*))?(?:\?([^#]*))?(?:#(.*))?$/);
var result = {
url : parts[0],
scheme : parts[1],
host : parts[3],
port : parts[4],
path : parts[5],
query : parts[6],
fragment : parts[7],
};
result.root =
result.scheme + '://' +
result.host +
(result.port ? ':' + result.port : '');
return result;
},
parseClarkNotation : function(propertyName) {
var result = propertyName.match(/^{([^}]+)}(.*)$/);
if (!result) {
return;
}
return {
name : result[2],
namespace : result[1]
};
}
};