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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
var resolveModule = function(names, mod, root) {
if (names.length == 0) {
if (typeof mod.current != "string") {
throw ["error","invalid_require_path",
'Must require a JavaScript string, not: '+(typeof mod.current)];
}
return {
current : mod.current,
parent : mod.parent,
id : mod.id,
exports : {}
}
}
// we need to traverse the path
var n = names.shift();
if (n == '..') {
if (!(mod.parent && mod.parent.parent)) {
throw ["error", "invalid_require_path", 'Object has no parent '+JSON.stringify(mod.current)];
}
return resolveModule(names, {
id : mod.id.slice(0, mod.id.lastIndexOf('/')),
parent : mod.parent.parent,
current : mod.parent.current
});
} else if (n == '.') {
if (!mod.parent) {
throw ["error", "invalid_require_path", 'Object has no parent '+JSON.stringify(mod.current)];
}
return resolveModule(names, {
parent : mod.parent,
current : mod.current,
id : mod.id
});
} else if (root) {
mod = {current : root};
}
if (!mod.current[n]) {
throw ["error", "invalid_require_path", 'Object has no property "'+n+'". '+JSON.stringify(mod.current)];
}
return resolveModule(names, {
current : mod.current[n],
parent : mod,
id : mod.id ? mod.id + '/' + n : n
});
};
var Couch = {
// moving this away from global so we can move to json2.js later
toJSON : function (val) {
return JSON.stringify(val);
},
compileFunction : function(source, ddoc) {
if (!source) throw(["error","not_found","missing function"]);
try {
if (sandbox) {
if (ddoc) {
if (!ddoc._module_cache) {
ddoc._module_cache = {};
}
var require = function(name, module) {
module = module || {};
var newModule = resolveModule(name.split('/'), module.parent, ddoc);
if (!ddoc._module_cache.hasOwnProperty(newModule.id)) {
// create empty exports object before executing the module,
// stops circular requires from filling the stack
ddoc._module_cache[newModule.id] = {};
var s = "function (module, exports, require) { " + newModule.current + " }";
try {
var func = sandbox ? evalcx(s, sandbox) : eval(s);
func.apply(sandbox, [newModule, newModule.exports, function(name) {
return require(name, newModule);
}]);
} catch(e) {
throw ["error","compilation_error","Module require('"+name+"') raised error "+e.toSource()];
}
ddoc._module_cache[newModule.id] = newModule.exports;
}
return ddoc._module_cache[newModule.id];
}
sandbox.require = require;
}
var functionObject = evalcx(source, sandbox);
} else {
var functionObject = eval(source);
}
} catch (err) {
throw(["error", "compilation_error", err.toSource() + " (" + source + ")"]);
};
if (typeof(functionObject) == "function") {
return functionObject;
} else {
throw(["error","compilation_error",
"Expression does not eval to a function. (" + source.toSource() + ")"]);
};
},
recursivelySeal : function(obj) {
// seal() is broken in current Spidermonkey
try {
seal(obj);
} catch (x) {
// Sealing of arrays broken in some SpiderMonkey versions.
// https://bugzilla.mozilla.org/show_bug.cgi?id=449657
}
for (var propname in obj) {
if (typeof obj[propname] == "object") {
arguments.callee(obj[propname]);
}
}
}
}
// prints the object as JSON, and rescues and logs any toJSON() related errors
function respond(obj) {
try {
print(Couch.toJSON(obj));
} catch(e) {
log("Error converting object to JSON: " + e.toString());
log("error on obj: "+ obj.toSource());
}
};
function log(message) {
// idea: query_server_config option for log level
if (typeof message == "xml") {
message = message.toXMLString();
} else if (typeof message != "string") {
message = Couch.toJSON(message);
}
respond(["log", String(message)]);
};
function isArray(obj) {
return toString.call(obj) === "[object Array]";
}
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