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Diffstat (limited to 'include/LibreOfficeKit/LibreOfficeKitInit.h')
| -rw-r--r-- | include/LibreOfficeKit/LibreOfficeKitInit.h | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/include/LibreOfficeKit/LibreOfficeKitInit.h b/include/LibreOfficeKit/LibreOfficeKitInit.h new file mode 100644 index 0000000000..695784d279 --- /dev/null +++ b/include/LibreOfficeKit/LibreOfficeKitInit.h @@ -0,0 +1,363 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#ifndef INCLUDED_LIBREOFFICEKIT_LIBREOFFICEKITINIT_H +#define INCLUDED_LIBREOFFICEKIT_LIBREOFFICEKITINIT_H + +#include <LibreOfficeKit/LibreOfficeKit.h> + +#if defined __GNUC__ || defined __clang__ +# define LOK_TOLERATE_UNUSED __attribute__((used)) +#else +# define LOK_TOLERATE_UNUSED +#endif + +#if defined(__linux__) || defined (__FreeBSD__) ||\ + defined(_WIN32) || defined(__APPLE__) || defined (__NetBSD__) ||\ + defined (__sun) || defined(__OpenBSD__) || defined(__EMSCRIPTEN__) + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> + +#ifndef _WIN32 + + #include <dlfcn.h> + + #ifdef __APPLE__ + #define TARGET_LIB "lib" "sofficeapp" ".dylib" + #define TARGET_MERGED_LIB "lib" "mergedlo" ".dylib" + #else + #define TARGET_LIB "lib" "sofficeapp" ".so" + #define TARGET_MERGED_LIB "lib" "mergedlo" ".so" + #endif + #define SEPARATOR '/' + +#else + + #if !defined WIN32_LEAN_AND_MEAN + #define WIN32_LEAN_AND_MEAN + #endif + #include <windows.h> + #define TARGET_LIB "sofficeapp" ".dll" + #define TARGET_MERGED_LIB "mergedlo" ".dll" + #define SEPARATOR '\\' + #define UNOPATH "\\..\\URE\\bin" + + #undef DELETE + +#endif + +#ifdef __cplusplus +extern "C" +{ +#endif + +#ifndef _WIN32 + +#if !defined(IOS) + static void *lok_loadlib(const char *pFN) + { + return dlopen(pFN, RTLD_LAZY +#if defined LOK_LOADLIB_GLOBAL + | RTLD_GLOBAL +#endif + ); + } + + static char *lok_dlerror(void) + { + return dlerror(); + } + + // This function must be called to release memory allocated by lok_dlerror() + static void lok_dlerror_free(char *pErrMessage) + { + (void)pErrMessage; + // Do nothing for return of dlerror() + } + + static void extendUnoPath(const char *pPath) + { + (void)pPath; + } + + static void *lok_dlsym(void *Hnd, const char *pName) + { + return dlsym(Hnd, pName); + } + + static int lok_dlclose(void *Hnd) + { + return dlclose(Hnd); + } +#endif // IOS + + +#else + static void *lok_loadlib(const char *pFN) + { + return (void *) LoadLibraryA(pFN); + } + + static char *lok_dlerror(void) + { + LPSTR buf = NULL; + FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, GetLastError(), 0, reinterpret_cast<LPSTR>(&buf), 0, NULL); + return buf; + } + + // This function must be called to release memory allocated by lok_dlerror() + static void lok_dlerror_free(char *pErrMessage) + { + HeapFree(GetProcessHeap(), 0, pErrMessage); + } + + static void *lok_dlsym(void *Hnd, const char *pName) + { + return reinterpret_cast<void *>(GetProcAddress((HINSTANCE) Hnd, pName)); + } + + static int lok_dlclose(void *Hnd) + { + return FreeLibrary((HINSTANCE) Hnd); + } + + static void extendUnoPath(const char *pPath) + { + char *sNewPath = NULL, *sEnvPath = NULL; + size_t size_sEnvPath = 0, buffer_size = 0; + DWORD cChars; + + if (!pPath) + return; + + cChars = GetEnvironmentVariableA("PATH", sEnvPath, 0); + if (cChars > 0) + { + sEnvPath = (char *) malloc(cChars); + cChars = GetEnvironmentVariableA("PATH", sEnvPath, cChars); + //If PATH is not set then it is no error + if (cChars == 0 && GetLastError() != ERROR_ENVVAR_NOT_FOUND) + { + free(sEnvPath); + return; + } + } + //prepare the new PATH. Add the Ure/bin directory at the front. + //note also adding ';' + if(sEnvPath) + size_sEnvPath = strlen(sEnvPath); + buffer_size = size_sEnvPath + 2*strlen(pPath) + strlen(UNOPATH) + 4; + sNewPath = (char *) malloc(buffer_size); + sNewPath[0] = L'\0'; + strcat_s(sNewPath, buffer_size, pPath); // program to PATH + strcat_s(sNewPath, buffer_size, ";"); + strcat_s(sNewPath, buffer_size, UNOPATH); // UNO to PATH + if (size_sEnvPath > 0) + { + strcat_s(sNewPath, buffer_size, ";"); + strcat_s(sNewPath, buffer_size, sEnvPath); + } + + SetEnvironmentVariableA("PATH", sNewPath); + + free(sNewPath); + free(sEnvPath); + } +#endif + +#if !defined(IOS) +static void *lok_dlopen( const char *install_path, char ** _imp_lib ) +{ + char *imp_lib; + void *dlhandle; + + size_t partial_length, imp_lib_size; + struct stat dir_st; + + *_imp_lib = NULL; + + if (!install_path) + return NULL; + + if (stat(install_path, &dir_st) != 0) + { + fprintf(stderr, "installation path \"%s\" does not exist\n", install_path); + return NULL; + } + + // allocate large enough buffer + partial_length = strlen(install_path); + imp_lib_size = partial_length + sizeof(TARGET_LIB) + sizeof(TARGET_MERGED_LIB) + 2; + imp_lib = (char *) malloc(imp_lib_size); + if (!imp_lib) + { + fprintf( stderr, "failed to open library : not enough memory\n"); + return NULL; + } + + memcpy(imp_lib, install_path, partial_length); + + extendUnoPath(install_path); + + imp_lib[partial_length++] = SEPARATOR; + strncpy(imp_lib + partial_length, TARGET_LIB, imp_lib_size - partial_length); + + dlhandle = lok_loadlib(imp_lib); + if (!dlhandle) + { + // If TARGET_LIB exists, and likely is a real library (not a + // small one-line text stub as in the --enable-mergedlib + // case), but dlopen failed for some reason, don't try + // TARGET_MERGED_LIB. + struct stat st; + if (stat(imp_lib, &st) == 0 && st.st_size > 100) + { + char *pErrMessage = lok_dlerror(); + fprintf(stderr, "failed to open library '%s': %s\n", + imp_lib, pErrMessage); + lok_dlerror_free(pErrMessage); + free(imp_lib); + return NULL; + } + + strncpy(imp_lib + partial_length, TARGET_MERGED_LIB, imp_lib_size - partial_length); + + dlhandle = lok_loadlib(imp_lib); + if (!dlhandle) + { + char *pErrMessage = lok_dlerror(); + fprintf(stderr, "failed to open library '%s': %s\n", + imp_lib, pErrMessage); + lok_dlerror_free(pErrMessage); + free(imp_lib); + return NULL; + } + } + *_imp_lib = imp_lib; + return dlhandle; +} +#endif + +typedef LibreOfficeKit *(LokHookFunction)( const char *install_path); + +typedef LibreOfficeKit *(LokHookFunction2)( const char *install_path, const char *user_profile_url ); + +typedef int (LokHookPreInit) ( const char *install_path, const char *user_profile_url ); + +typedef int (LokHookPreInit2) ( const char *install_path, const char *user_profile_url, LibreOfficeKit** kit); + +#if defined(IOS) || defined(ANDROID) || defined(__EMSCRIPTEN__) +LibreOfficeKit *libreofficekit_hook_2(const char* install_path, const char* user_profile_path); +#endif + +static LibreOfficeKit *lok_init_2( const char *install_path, const char *user_profile_url ) +{ +#if !defined(IOS) && !defined(ANDROID) && !defined(__EMSCRIPTEN__) + void *dlhandle; + char *imp_lib; + LokHookFunction *pSym; + LokHookFunction2 *pSym2; + + dlhandle = lok_dlopen(install_path, &imp_lib); + if (!dlhandle) + return NULL; + + pSym2 = (LokHookFunction2 *) lok_dlsym(dlhandle, "libreofficekit_hook_2"); + if (!pSym2) + { + if (user_profile_url != NULL) + { + fprintf( stderr, "the LibreOffice version in '%s' does not support passing a user profile to the hook function\n", + imp_lib ); + lok_dlclose( dlhandle ); + free( imp_lib ); + return NULL; + } + pSym = (LokHookFunction *) lok_dlsym( dlhandle, "libreofficekit_hook" ); + if (!pSym) + { + fprintf( stderr, "failed to find hook in library '%s'\n", imp_lib ); + lok_dlclose( dlhandle ); + free( imp_lib ); + return NULL; + } + free( imp_lib ); + // dlhandle is "leaked" + // coverity[leaked_storage] - on purpose + return pSym( install_path ); + } + + if (user_profile_url != NULL && user_profile_url[0] == '/') + { + // It should be either a file: URL or a vnd.sun.star.pathname: URL. + fprintf( stderr, "second parameter to lok_init_2 '%s' should be a URL, not a pathname\n", user_profile_url ); + lok_dlclose( dlhandle ); + free( imp_lib ); + return NULL; + } + + free( imp_lib ); + // dlhandle is "leaked" + // coverity[leaked_storage] - on purpose + return pSym2( install_path, user_profile_url ); +#else + return libreofficekit_hook_2( install_path, user_profile_url ); +#endif +} + +static LOK_TOLERATE_UNUSED +LibreOfficeKit *lok_init( const char *install_path ) +{ + return lok_init_2( install_path, NULL ); +} + +#if !defined(IOS) +static LOK_TOLERATE_UNUSED +int lok_preinit( const char *install_path, const char *user_profile_url ) +{ + void *dlhandle; + char *imp_lib; + LokHookPreInit *pSym; + + dlhandle = lok_dlopen(install_path, &imp_lib); + if (!dlhandle) + return -1; + + pSym = (LokHookPreInit *) lok_dlsym(dlhandle, "lok_preinit"); + if (!pSym) + { + fprintf( stderr, "failed to find pre-init hook in library '%s'\n", imp_lib ); + lok_dlclose( dlhandle ); + free( imp_lib ); + return -1; + } + + free( imp_lib ); + + // dlhandle is "leaked" + // coverity[leaked_storage] - on purpose + return pSym( install_path, user_profile_url ); +} +#endif + +#undef SEPARATOR // It is used at least in enum class MenuItemType + +#ifdef __cplusplus +} +#endif + +#endif // defined(__linux__) || defined (__FreeBSD__) || defined(_WIN32) || defined(__APPLE__) + +#endif // INCLUDED_LIBREOFFICEKIT_LIBREOFFICEKITINIT_H + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |