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https://github.com/SunRed/haste-server.git
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Ensure conflict resolution in keyspace
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parent
4ed87c4ec7
commit
0f2075fcda
2 changed files with 28 additions and 14 deletions
4
TODO
4
TODO
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@ -1,4 +1,4 @@
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cache headers for static assets
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cache headers for static assets (and on document GET)
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tests
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fix any annoying visual quirks
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add FAVICON
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@ -6,7 +6,7 @@ cache static in memory
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add feedback for errors to UI - esp. too long
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copy URL to clipboard button
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add about page
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add conflict resolution for keys when creating a post
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support built-in expiration
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# shared version only
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some way to do announcements easily (and use for ads)
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@ -29,7 +29,6 @@ DocumentHandler.prototype.handleGet = function(key, response) {
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// Handle adding a new Document
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DocumentHandler.prototype.handlePost = function(request, response) {
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var _this = this;
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var key = this.randomKey();
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var buffer = '';
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request.on('data', function(data) {
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if (!buffer) {
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@ -38,13 +37,14 @@ DocumentHandler.prototype.handlePost = function(request, response) {
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buffer += data.toString();
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if (_this.maxLength && buffer.length > _this.maxLength) {
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_this.cancelled = true;
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winston.warn('attempted to upload a document >maxLength', { maxLength: _this.maxLength });
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winston.warn('document >maxLength', { maxLength: _this.maxLength });
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response.writeHead(400, { 'content-type': 'application/json' });
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response.end(JSON.stringify({ message: 'document exceeds maximum length' }));
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}
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});
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request.on('end', function(end) {
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if (_this.cancelled) return;
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_this.chooseKey(function(key) {
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_this.store.set(key, buffer, function(res) {
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if (res) {
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winston.verbose('added document', { key: key });
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@ -57,6 +57,7 @@ DocumentHandler.prototype.handlePost = function(request, response) {
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}
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});
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});
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});
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request.on('error', function(error) {
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winston.error('connection error: ' + error.message);
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response.writeHead(500, { 'content-type': 'application/json' });
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@ -64,6 +65,19 @@ DocumentHandler.prototype.handlePost = function(request, response) {
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});
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};
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// Get a random key that hasn't been already used
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DocumentHandler.prototype.chooseKey = function(callback) {
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var key = this.randomKey();
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var _this = this;
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this.store.get(key, function(ret) {
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if (ret) {
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_this.chooseKey(callback);
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} else {
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callback(key);
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}
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});
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};
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// Generate a random key
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DocumentHandler.prototype.randomKey = function() {
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var text = '';
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