PLT-3105 Files table migration (#4068)

* Implemented initial changes for files table

* Removed *_benchmark_test.go files

* Re-implemented GetPublicFile and added support for old path

* Localization for files table

* Moved file system code into utils package

* Finished server-side changes and added initial upgrade script

* Added getPostFiles api

* Re-add Extension and HasPreviewImage fields to FileInfo

* Removed unused translation

* Fixed merge conflicts left over after permissions changes

* Forced FileInfo.extension to be lower case

* Changed FileUploadResponse to contain the FileInfos instead of FileIds

* Fixed permissions on getFile* calls

* Fixed notifications for file uploads

* Added initial version of client code for files changes

* Permanently added FileIds field to Post object and removed Post.HasFiles

* Updated PostStore.Update to be usable in more circumstances

* Re-added Filenames field and switched file migration to be entirely lazy-loaded

* Increased max listener count for FileStore

* Removed unused fileInfoCache

* Moved file system code back into api

* Removed duplicate test case

* Fixed unit test running on ports other than 8065

* Renamed HasPermissionToPostContext to HasPermissionToChannelByPostContext

* Refactored handleImages to make it more easily understandable

* Renamed getPostFiles to getFileInfosForPost

* Re-added pre-FileIds posts to analytics

* Changed files to be saved as their ids as opposed to id/filename.ext

* Renamed FileInfo.UserId to FileInfo.CreatorId

* Fixed detection of language in CodePreview

* Fixed switching between threads in the RHS not loading new files

* Add serverside protection against a rare bug where the client sends the same file twice for a single post

* Refactored the important parts of uploadFile api call into a function that can be called without a web context

webapp/components/code_preview.jsx

@@ -38,7 +38,7 @@ export default class CodePreview extends React.Component {
     }
 
     updateStateFromProps(props) {
-        var usedLanguage = SyntaxHighlighting.getLanguageFromFilename(props.filename);
+        const usedLanguage = SyntaxHighlighting.getLanguageFromFileExtension(props.fileInfo.extension);
 
         if (!usedLanguage || props.fileInfo.size > Constants.CODE_PREVIEW_MAX_FILE_SIZE) {
             this.setState({code: '', lang: '', loading: false, success: false});
@@ -64,8 +64,8 @@ export default class CodePreview extends React.Component {
         this.setState({loading: false, success: false});
     }
 
-    static support(filename) {
-        return Boolean(SyntaxHighlighting.getLanguageFromFilename(filename));
+    static supports(fileInfo) {
+        return Boolean(SyntaxHighlighting.getLanguageFromFileExtension(fileInfo.extension));
     }
 
     render() {
@@ -83,10 +83,8 @@ export default class CodePreview extends React.Component {
         if (!this.state.success) {
             return (
                 <FileInfoPreview
-                    filename={this.props.filename}
-                    fileUrl={this.props.fileUrl}
                     fileInfo={this.props.fileInfo}
-                    formatMessage={this.props.formatMessage}
+                    fileUrl={this.props.fileUrl}
                 />
             );
         }
@@ -106,12 +104,10 @@ export default class CodePreview extends React.Component {
 
         const highlighted = SyntaxHighlighting.highlight(this.state.lang, this.state.code);
 
-        const fileName = this.props.filename.substring(this.props.filename.lastIndexOf('/') + 1, this.props.filename.length);
-
         return (
             <div className='post-code'>
                 <span className='post-code__language'>
-                    {`${fileName} - ${language}`}
+                    {`${this.props.fileInfo.name} - ${language}`}
                 </span>
                 <code className='hljs'>
                     <table>
@@ -129,8 +125,6 @@ export default class CodePreview extends React.Component {
 }
 
 CodePreview.propTypes = {
-    filename: React.PropTypes.string.isRequired,
-    fileUrl: React.PropTypes.string.isRequired,
     fileInfo: React.PropTypes.object.isRequired,
-    formatMessage: React.PropTypes.func.isRequired
+    fileUrl: React.PropTypes.string.isRequired
 };