76 lines
2.5 KiB
D
76 lines
2.5 KiB
D
module handlers;
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import handy_httpd;
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import slf4d;
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import std.conv : to;
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import std.path;
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import std.file;
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import std.uuid;
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import std.json;
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import std.stdio;
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static immutable MAX_UPLOAD_SIZE = 1024 * 1024 * 1024;
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static immutable ALLOWED_MEDIA_TYPES = ["video/mp4"];
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static immutable TEMP_UPLOADS_DIR = "temp-uploads";
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class VideoUploadHandler : HttpRequestHandler {
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public void handle(ref HttpRequestContext ctx) {
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if (!validateHeaders(ctx)) return;
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if (!exists(TEMP_UPLOADS_DIR)) mkdir(TEMP_UPLOADS_DIR);
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UUID uploadId = sha1UUID("gymboard-uploads");
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ctx.request.readBodyToFile(getTempFilePath(uploadId));
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JSONValue metadataObj = JSONValue(string[string].init); // Empty object.
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string originalFilename = ctx.request.getHeader("X-GYMBOARD-FILENAME");
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if (originalFilename is null) {
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originalFilename = "unnamed.mp4";
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}
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metadataObj.object["filename"] = originalFilename;
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File f = File(getTempFileMetadataPath(uploadId), "w");
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f.write(metadataObj.toPrettyString());
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f.close();
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infoF!"Saved uploaded video file with id %s."(uploadId.toString);
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ctx.response.setStatus(HttpStatus.CREATED);
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ctx.response.writeBodyString(uploadId.toString());
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}
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private bool validateHeaders(ref HttpRequestContext ctx) {
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ulong contentLength = ctx.request.getHeaderAs!ulong("Content-Length");
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if (contentLength == 0) {
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ctx.response.status = HttpStatus.LENGTH_REQUIRED;
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return false;
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} else if (contentLength > MAX_UPLOAD_SIZE) {
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ctx.response.status = HttpStatus.PAYLOAD_TOO_LARGE;
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return false;
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}
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import std.algorithm : canFind;
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string contentType = ctx.request.getHeader("Content-Type");
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if (contentType is null || !canFind(ALLOWED_MEDIA_TYPES, contentType)) {
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ctx.response.status = HttpStatus.UNSUPPORTED_MEDIA_TYPE;
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return false;
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}
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return true;
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}
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private string getTempFilePath(const ref UUID uploadId) {
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return buildPath(TEMP_UPLOADS_DIR, uploadId.toString());
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}
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private string getTempFileMetadataPath(const ref UUID uploadId) {
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return buildPath(TEMP_UPLOADS_DIR, uploadId.toString() ~ "_meta.json");
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}
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}
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class VideoProcessingHandler : HttpRequestHandler {
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public void handle(ref HttpRequestContext ctx) {
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string uploadIdStr = ctx.request.getPathParamAs!string("uploadId");
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infoF!"Processing upload %s"(uploadIdStr);
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}
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}
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