Websocket support

build.sh

@@ -1,4 +1,6 @@
 set -euxo pipefail
 
 python3 ../xovi/util/xovigen.py -o xovi.c -H xovi.h rmfakecloud.xovi
-$CC -shared -fPIC main.cpp xovi.c `pkg-config --cflags --libs Qt6Network` -o rmfakecloud.so
+python3 ../xovi/util/xovigen.py -o websocket-xovi.c -H websocket-xovi.h websocket.xovi
+$CC -shared -fPIC main.cpp xovi.c `pkg-config --cflags --libs Qt6Network` -o rmfakecloud.so
+$CC -shared -fPIC websocket.cpp websocket-xovi.c `pkg-config --cflags --libs Qt6Network Qt6WebSockets` -o rmfakecloud-websocket.so

rmfakecloud.xovi

@@ -1,4 +1,4 @@
 version 1.0.0
 
 import? _ZN21QNetworkAccessManager13createRequestENS_9OperationERK15QNetworkRequestP9QIODevice
-override _ZN21QNetworkAccessManager13createRequestENS_9OperationERK15QNetworkRequestP9QIODevice
+override _ZN21QNetworkAccessManager13createRequestENS_9OperationERK15QNetworkRequestP9QIODevice

websocket-xovi.c

@@ -0,0 +1,92 @@
+// This file is autogenerated. Please do not alter it manually and instead run xovigen.py.
+// XOVI extension / module base file
+#ifdef __cplusplus
+extern "C" {
+#endif
+#ifndef XOVI_PUBLIC_API
+#define XOVI_PUBLIC_API
+#define XOVI_VERSION "0.2.0"
+#include <stdbool.h>
+
+#define LP1_F_TYPE_EXPORT 1
+#define LP1_F_TYPE_IMPORT 2
+#define LP1_F_TYPE_OVERRIDE 3
+#define LP1_F_TYPE_CONDITION 4
+
+#define METADATA_TYPE_INT 1
+#define METADATA_TYPE_BOOL 2
+#define METADATA_TYPE_STRING 3
+
+typedef union {
+    int i;
+    bool b;
+    struct {
+        int sLength;
+        const char *s;
+    };
+} XoviMetadataValue;
+
+struct XoviMetadataEntry {
+    const char *name;
+    char type;
+    XoviMetadataValue value;
+};
+
+// Public version of the metadata iterator.
+struct ExtensionMetadataIterator {
+    const char *extensionName;
+    const char *functionName;
+    void *functionAddress;
+    char OPAQUE[sizeof(void *) * 4 + sizeof(bool)];
+};
+
+struct XoViEnvironment {
+    char *(*getExtensionDirectory)(const char *family);
+    void (*requireExtension)(const char *name, unsigned char major, unsigned char minor, unsigned char patch);
+
+    // 0.2.0 API - metadata:
+    int (*getExtensionCount)();
+    int (*getExtensionNames)(const char **table, int maxCount);
+    int (*getExtensionFunctionCount)(const char *key);
+    int (*getExtensionFunctionNames)(const char *extension, const char **table, int maxCount);
+
+    int (*getMetadataEntriesCountForFunction)(const char *extension, const char *function, int functionType);
+    struct XoviMetadataEntry **(*getMetadataChainForFunction)(const char *extension, const char *function, int functionType);
+    struct XoviMetadataEntry *(*getMetadataEntryForFunction)(const char *extension, const char *function, int functionType, const char *metadataEntryName);
+
+    void (*createMetadataSearchingIterator)(struct ExtensionMetadataIterator *iterator, const char *metadataEntryName);
+    struct XoviMetadataEntry *(*nextFunctionMetadataEntry)(struct ExtensionMetadataIterator *iterator);
+};
+#endif
+
+
+// Deps
+extern void override$_ZN10QWebSocket4openERK15QNetworkRequest();
+
+// XOVI metadata
+__attribute__((section(".xovi"))) const char *LINKTABLENAMES = "C_ZN10QWebSocket4openERK15QNetworkRequest\0I_ZN10QWebSocket4openERK15QNetworkRequest\0O_ZN10QWebSocket4openERK15QNetworkRequest\0\0";
+__attribute__((section(".xovi"))) const void *LINKTABLEVALUES[] = { (void *) 3, (void *) 0, (void *) 0, (void *) override$_ZN10QWebSocket4openERK15QNetworkRequest };
+__attribute__((section(".xovi"))) const void *Environment = 0;
+__attribute__((section(".xovi_info"))) const int EXTENSIONVERSION = 65536;
+
+__attribute__((section(".xovi_info"))) const char __XOVIMETADATANAMES[] = "";
+
+// Raw Metadata Entries
+
+
+// Metadata Chains
+
+
+// Main metadata list
+__attribute__((section(".xovi"))) const struct XoviMetadataEntry **METADATAVALUES[] = {
+    (const struct XoviMetadataEntry **) 0,
+    (const struct XoviMetadataEntry **) 0,
+    (const struct XoviMetadataEntry **) 0,
+    (const struct XoviMetadataEntry **) 0, (const struct XoviMetadataEntry **) 1
+};
+
+// Resources
+
+#ifdef __cplusplus
+}
+#endif

websocket-xovi.h

@@ -0,0 +1,78 @@
+// XOVI project import / resource header file. This file is autogenerated. Do not edit.
+#ifndef _XOVIGEN
+#define _XOVIGEN
+#ifdef __cplusplus
+extern "C" {
+#endif
+#ifndef XOVI_PUBLIC_API
+#define XOVI_PUBLIC_API
+#define XOVI_VERSION "0.2.0"
+#include <stdbool.h>
+
+#define LP1_F_TYPE_EXPORT 1
+#define LP1_F_TYPE_IMPORT 2
+#define LP1_F_TYPE_OVERRIDE 3
+#define LP1_F_TYPE_CONDITION 4
+
+#define METADATA_TYPE_INT 1
+#define METADATA_TYPE_BOOL 2
+#define METADATA_TYPE_STRING 3
+
+typedef union {
+    int i;
+    bool b;
+    struct {
+        int sLength;
+        const char *s;
+    };
+} XoviMetadataValue;
+
+struct XoviMetadataEntry {
+    const char *name;
+    char type;
+    XoviMetadataValue value;
+};
+
+// Public version of the metadata iterator.
+struct ExtensionMetadataIterator {
+    const char *extensionName;
+    const char *functionName;
+    void *functionAddress;
+    char OPAQUE[sizeof(void *) * 4 + sizeof(bool)];
+};
+
+struct XoViEnvironment {
+    char *(*getExtensionDirectory)(const char *family);
+    void (*requireExtension)(const char *name, unsigned char major, unsigned char minor, unsigned char patch);
+
+    // 0.2.0 API - metadata:
+    int (*getExtensionCount)();
+    int (*getExtensionNames)(const char **table, int maxCount);
+    int (*getExtensionFunctionCount)(const char *key);
+    int (*getExtensionFunctionNames)(const char *extension, const char **table, int maxCount);
+
+    int (*getMetadataEntriesCountForFunction)(const char *extension, const char *function, int functionType);
+    struct XoviMetadataEntry **(*getMetadataChainForFunction)(const char *extension, const char *function, int functionType);
+    struct XoviMetadataEntry *(*getMetadataEntryForFunction)(const char *extension, const char *function, int functionType, const char *metadataEntryName);
+
+    void (*createMetadataSearchingIterator)(struct ExtensionMetadataIterator *iterator, const char *metadataEntryName);
+    struct XoviMetadataEntry *(*nextFunctionMetadataEntry)(struct ExtensionMetadataIterator *iterator);
+};
+#endif
+
+
+extern const void *LINKTABLEVALUES[];
+
+// Imports
+#define $_ZN10QWebSocket4openERK15QNetworkRequest ((unsigned long long int (*)()) LINKTABLEVALUES[2])
+
+// Resources
+
+
+// Environment
+extern const struct XoViEnvironment *Environment;
+
+#ifdef __cplusplus
+}
+#endif
+#endif

websocket.cpp

@@ -0,0 +1,42 @@
+#include <QNetworkAccessManager>
+#include <QNetworkRequest>
+#include <QNetworkReply>
+#include <QDebug>
+#include <QIODevice>
+#include <QWebSocket>
+#include "websocket-xovi.h"
+
+extern "C" void override$_ZN10QWebSocket4openERK15QNetworkRequest(
+    QWebSocket* self,
+    const QNetworkRequest& req
+) {
+    const char* host = std::getenv("RMFAKECLOUD_HOST");
+
+    // set new url
+    QUrl newUrl = req.url();
+    newUrl.setHost(QString(host));
+
+    // create a new request, so we don't have to modify the original request
+    QNetworkRequest newReq(req);
+    newReq.setUrl(newUrl);
+
+    // get original function signature
+    using CreateFn = void*(*)(QWebSocket*,
+                            const QNetworkRequest&);
+    CreateFn orig = reinterpret_cast<CreateFn>(
+        $_ZN10QWebSocket4openERK15QNetworkRequest
+    );
+
+    // call original function, and return the result
+    orig(self, newReq);
+}
+
+extern "C" void _xovi_construct() {
+    const char* host = std::getenv("RMFAKECLOUD_HOST");
+    if (host == NULL) {
+        qCritical() << "[rmfakecloud-websocket] Environment variable \"RMFAKECLOUD_HOST\" not set!";
+        abort();
+    }
+
+    qDebug() << "Loading rmfakecloud-websocket by Tiebe. Using host " << host;
+}

websocket.xovi

@@ -0,0 +1,4 @@
+version 1.0.0
+
+import? _ZN10QWebSocket4openERK15QNetworkRequest
+override _ZN10QWebSocket4openERK15QNetworkRequest