diff options
author | Brad Anderson <brad@cloudant.com> | 2010-08-18 16:16:09 -0400 |
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committer | Adam Kocoloski <adam@cloudant.com> | 2010-08-18 17:19:37 -0400 |
commit | 6d18638d747374cb0e90e9bcbefbc71d959254fd (patch) | |
tree | 51ee2c2fd1020550e56febb03c740582af04dfce /share/server/render.js | |
parent | 1fda1aa8f69d5870c5711b0068971c7d4594e6cc (diff) |
clear out root folder a bit, moving couch bits into apps/couch or rel/
Diffstat (limited to 'share/server/render.js')
-rw-r--r-- | share/server/render.js | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/share/server/render.js b/share/server/render.js deleted file mode 100644 index 9dcfbcd6..00000000 --- a/share/server/render.js +++ /dev/null @@ -1,352 +0,0 @@ -// 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 Mime = (function() { - // registerType(name, mime-type, mime-type, ...) - // - // Available in query server sandbox. TODO: The list is cleared on reset. - // This registers a particular name with the set of mimetypes it can handle. - // Whoever registers last wins. - // - // Example: - // registerType("html", "text/html; charset=utf-8"); - - var mimesByKey = {}; - var keysByMime = {}; - function registerType() { - var mimes = [], key = arguments[0]; - for (var i=1; i < arguments.length; i++) { - mimes.push(arguments[i]); - }; - mimesByKey[key] = mimes; - for (var i=0; i < mimes.length; i++) { - keysByMime[mimes[i]] = key; - }; - } - - // Some default types - // Ported from Ruby on Rails - // Build list of Mime types for HTTP responses - // http://www.iana.org/assignments/media-types/ - // http://dev.rubyonrails.org/svn/rails/trunk/actionpack/lib/action_controller/mime_types.rb - - registerType("all", "*/*"); - registerType("text", "text/plain; charset=utf-8", "txt"); - registerType("html", "text/html; charset=utf-8"); - registerType("xhtml", "application/xhtml+xml", "xhtml"); - registerType("xml", "application/xml", "text/xml", "application/x-xml"); - registerType("js", "text/javascript", "application/javascript", "application/x-javascript"); - registerType("css", "text/css"); - registerType("ics", "text/calendar"); - registerType("csv", "text/csv"); - registerType("rss", "application/rss+xml"); - registerType("atom", "application/atom+xml"); - registerType("yaml", "application/x-yaml", "text/yaml"); - // just like Rails - registerType("multipart_form", "multipart/form-data"); - registerType("url_encoded_form", "application/x-www-form-urlencoded"); - // http://www.ietf.org/rfc/rfc4627.txt - registerType("json", "application/json", "text/x-json"); - - - var mimeFuns = []; - function provides(type, fun) { - Mime.providesUsed = true; - mimeFuns.push([type, fun]); - }; - - function resetProvides() { - // set globals - Mime.providesUsed = false; - mimeFuns = []; - Mime.responseContentType = null; - }; - - function runProvides(req) { - var supportedMimes = [], bestFun, bestKey = null, accept = req.headers["Accept"]; - if (req.query && req.query.format) { - bestKey = req.query.format; - Mime.responseContentType = mimesByKey[bestKey][0]; - } else if (accept) { - // log("using accept header: "+accept); - mimeFuns.reverse().forEach(function(mimeFun) { - var mimeKey = mimeFun[0]; - if (mimesByKey[mimeKey]) { - supportedMimes = supportedMimes.concat(mimesByKey[mimeKey]); - } - }); - Mime.responseContentType = Mimeparse.bestMatch(supportedMimes, accept); - bestKey = keysByMime[Mime.responseContentType]; - } else { - // just do the first one - bestKey = mimeFuns[0][0]; - Mime.responseContentType = mimesByKey[bestKey][0]; - } - - if (bestKey) { - for (var i=0; i < mimeFuns.length; i++) { - if (mimeFuns[i][0] == bestKey) { - bestFun = mimeFuns[i][1]; - break; - } - }; - }; - - if (bestFun) { - return bestFun(); - } else { - var supportedTypes = mimeFuns.map(function(mf) {return mimesByKey[mf[0]].join(', ') || mf[0]}); - throw(["error","not_acceptable", - "Content-Type "+(accept||bestKey)+" not supported, try one of: "+supportedTypes.join(', ')]); - } - }; - - - return { - registerType : registerType, - provides : provides, - resetProvides : resetProvides, - runProvides : runProvides - } -})(); - - - - -//// -//// Render dispatcher -//// -//// -//// -//// - -var Render = (function() { - var chunks = []; - - - // Start chunks - var startResp = {}; - function start(resp) { - startResp = resp || {}; - }; - - function sendStart() { - startResp = applyContentType((startResp || {}), Mime.responseContentType); - respond(["start", chunks, startResp]); - chunks = []; - startResp = {}; - } - - function applyContentType(resp, responseContentType) { - resp["headers"] = resp["headers"] || {}; - if (responseContentType) { - resp["headers"]["Content-Type"] = resp["headers"]["Content-Type"] || responseContentType; - } - return resp; - } - - function send(chunk) { - chunks.push(chunk.toString()); - }; - - function blowChunks(label) { - respond([label||"chunks", chunks]); - chunks = []; - }; - - var gotRow = false, lastRow = false; - function getRow() { - if (lastRow) return null; - if (!gotRow) { - gotRow = true; - sendStart(); - } else { - blowChunks(); - } - var line = readline(); - var json = eval('('+line+')'); - if (json[0] == "list_end") { - lastRow = true; - return null; - } - if (json[0] != "list_row") { - throw(["fatal", "list_error", "not a row '" + json[0] + "'"]); - } - return json[1]; - }; - - - function maybeWrapResponse(resp) { - var type = typeof resp; - if ((type == "string") || (type == "xml")) { - return {body:resp}; - } else { - return resp; - } - }; - - // from http://javascript.crockford.com/remedial.html - function typeOf(value) { - var s = typeof value; - if (s === 'object') { - if (value) { - if (value instanceof Array) { - s = 'array'; - } - } else { - s = 'null'; - } - } - return s; - }; - - function isDocRequestPath(info) { - var path = info.path; - return path.length > 5; - }; - - function runShow(fun, ddoc, args) { - try { - resetList(); - Mime.resetProvides(); - var resp = fun.apply(ddoc, args) || {}; - - // handle list() style API - if (chunks.length && chunks.length > 0) { - resp = maybeWrapResponse(resp); - resp.headers = resp.headers || {}; - for(var header in startResp) { - resp.headers[header] = startResp[header] - } - resp.body = chunks.join("") + (resp.body || ""); - resetList(); - } - - if (Mime.providesUsed) { - resp = Mime.runProvides(args[1]); - resp = applyContentType(maybeWrapResponse(resp), Mime.responseContentType); - } - - var type = typeOf(resp); - if (type == 'object' || type == 'string') { - respond(["resp", maybeWrapResponse(resp)]); - } else { - throw(["error", "render_error", "undefined response from show function"]); - } - } catch(e) { - if (args[0] === null && isDocRequestPath(args[1])) { - throw(["error", "not_found", "document not found"]); - } else { - renderError(e, fun.toSource()); - } - } - }; - - function runUpdate(fun, ddoc, args) { - try { - var method = args[1].method; - // for analytics logging applications you might want to remove the next line - if (method == "GET") throw(["error","method_not_allowed","Update functions do not allow GET"]); - var result = fun.apply(ddoc, args); - var doc = result[0]; - var resp = result[1]; - var type = typeOf(resp); - if (type == 'object' || type == 'string') { - respond(["up", doc, maybeWrapResponse(resp)]); - } else { - throw(["error", "render_error", "undefined response from update function"]); - } - } catch(e) { - renderError(e, fun.toSource()); - } - }; - - function resetList() { - gotRow = false; - lastRow = false; - chunks = []; - startResp = {}; - }; - - function runList(listFun, ddoc, args) { - try { - Mime.resetProvides(); - resetList(); - head = args[0] - req = args[1] - var tail = listFun.apply(ddoc, args); - - if (Mime.providesUsed) { - tail = Mime.runProvides(req); - } - if (!gotRow) getRow(); - if (typeof tail != "undefined") { - chunks.push(tail); - } - blowChunks("end"); - } catch(e) { - renderError(e, listFun.toSource()); - } - }; - - function renderError(e, funSrc) { - if (e.error && e.reason || e[0] == "error" || e[0] == "fatal") { - throw(e); - } else { - var logMessage = "function raised error: "+e.toSource()+" \nstacktrace: "+e.stack; - log(logMessage); - throw(["error", "render_error", logMessage]); - } - }; - - function escapeHTML(string) { - return string && string.replace(/&/g, "&") - .replace(/</g, "<") - .replace(/>/g, ">"); - }; - - - return { - start : start, - send : send, - getRow : getRow, - show : function(fun, ddoc, args) { - // var showFun = Couch.compileFunction(funSrc); - runShow(fun, ddoc, args); - }, - update : function(fun, ddoc, args) { - // var upFun = Couch.compileFunction(funSrc); - runUpdate(fun, ddoc, args); - }, - list : function(fun, ddoc, args) { - runList(fun, ddoc, args); - } - }; -})(); - -// send = Render.send; -// getRow = Render.getRow; -// start = Render.start; - -// unused. this will be handled in the Erlang side of things. -// function htmlRenderError(e, funSrc) { -// var msg = ["<html><body><h1>Render Error</h1>", -// "<p>JavaScript function raised error: ", -// e.toString(), -// "</p><h2>Stacktrace:</h2><code><pre>", -// escapeHTML(e.stack), -// "</pre></code><h2>Function source:</h2><code><pre>", -// escapeHTML(funSrc), -// "</pre></code></body></html>"].join(''); -// return {body:msg}; -// }; |