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2025-07-22 02:42:34 +10:00 · 2025-07-22 02:42:34 +10:00 · b6b7d72717
commit b6b7d72717
96 changed files with 37739 additions and 0 deletions
--- a/fs_wget.h
+++ b/fs_wget.h
@ -0,0 +1,93 @@
+/*
+ * HTTP file download
+ * 
+ * Copyright (c) 2016-2017 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#if defined(EMSCRIPTEN)
+#define USE_BUILTIN_CRYPTO
+#endif
+
+#ifdef USE_BUILTIN_CRYPTO
+#include "aes.h"
+#include "sha256.h"
+#else
+#include <openssl/aes.h>
+#include <openssl/sha.h>
+#include <openssl/evp.h>
+#endif
+#ifdef _WIN32
+#include <winsock2.h>
+#endif
+
+#define LOG() printf("%s:%d\n", __func__, __LINE__)
+
+/* XHR */
+
+/* err < 0: error (no data provided)
+   err = 0: end of transfer (data can be provided too)
+   err = 1: data chunk
+*/
+typedef void WGetWriteCallback(void *opaque, int err, void *data, size_t size);
+typedef size_t WGetReadCallback(void *opaque, void *data, size_t size);
+typedef struct XHRState XHRState;
+
+XHRState *fs_wget(const char *url, const char *user, const char *password,
+                  void *opaque, WGetWriteCallback *cb, BOOL single_write);
+void fs_wget_free(XHRState *s);
+
+void fs_wget_init(void);
+void fs_wget_end(void);
+
+#ifndef EMSCRIPTEN
+typedef BOOL FSNetEventLoopCompletionFunc(void *opaque);
+void fs_net_set_fdset(int *pfd_max, fd_set *rfds, fd_set *wfds, fd_set *efds,
+                      int *ptimeout);
+void fs_net_event_loop(FSNetEventLoopCompletionFunc *cb, void *opaque);
+#endif
+
+/* crypto */
+
+extern const uint8_t encrypted_file_magic[4];
+
+typedef int DecryptFileCB(void *opaque, const uint8_t *data, size_t len);
+typedef struct DecryptFileState DecryptFileState;
+
+DecryptFileState *decrypt_file_init(AES_KEY *aes_state,
+                                    DecryptFileCB *write_cb,
+                                    void *opaque);
+int decrypt_file(DecryptFileState *s, const uint8_t *data,
+                 size_t size);
+int decrypt_file_flush(DecryptFileState *s);
+void decrypt_file_end(DecryptFileState *s);
+
+void pbkdf2_hmac_sha256(const uint8_t *pwd, int pwd_len,
+                        const uint8_t *salt, int salt_len,
+                        int iter, int key_len, uint8_t *out);
+
+/* XHR file */
+
+typedef void FSWGetFileCB(FSDevice *fs, FSFile *f, int64_t size, void *opaque);
+
+void fs_wget_file2(FSDevice *fs, FSFile *f, const char *url,
+                   const char *user, const char *password,
+                   FSFile *posted_file, uint64_t post_data_len,
+                   FSWGetFileCB *cb, void *opaque,
+                   AES_KEY *aes_state);