Diffstat (limited to 'filter.c')
| -rw-r--r-- | filter.c | 186 |
1 files changed, 0 insertions, 186 deletions
@@ -7,19 +7,12 @@ */ #include "cgit.h" -#include "html.h" #include <sys/types.h> #include <sys/wait.h> #include <unistd.h> #include <string.h> #include <stdlib.h> #include <dlfcn.h> -#include <errno.h> -#ifndef NO_LUA -#include <lua.h> -#include <lualib.h> -#include <lauxlib.h> -#endif static ssize_t (*libc_write)(int fd, const void *buf, size_t count); static ssize_t (*filter_write)(struct cgit_filter *base, const void *buf, size_t count) = NULL; @@ -171,182 +164,6 @@ void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **ar filter->base.argument_count = 0; } -#ifndef NO_LUA -struct lua_filter { - struct cgit_filter base; - char *script_file; - lua_State *lua_state; -}; - -static void error_lua_filter(struct lua_filter *filter) -{ - die("Lua error in %s: %s", filter->script_file, lua_tostring(filter->lua_state, -1)); - lua_pop(filter->lua_state, 1); -} - -static ssize_t write_lua_filter(struct cgit_filter *base, const void *buf, size_t count) -{ - struct lua_filter *filter = (struct lua_filter *) base; - - lua_getglobal(filter->lua_state, "filter_write"); - lua_pushlstring(filter->lua_state, buf, count); - if (lua_pcall(filter->lua_state, 1, 0, 0)) { - error_lua_filter(filter); - errno = EIO; - return -1; - } - return count; -} - -static inline int hook_lua_filter(lua_State *lua_state, void (*fn)(const char *txt)) -{ - const char *str; - ssize_t (*save_filter_write)(struct cgit_filter *base, const void *buf, size_t count); - struct cgit_filter *save_filter; - - str = lua_tostring(lua_state, 1); - if (!str) - return 0; - - save_filter_write = filter_write; - save_filter = current_write_filter; - unhook_write(); - fn(str); - hook_write(save_filter, save_filter_write); - - return 0; -} - -static int html_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html); -} - -static int html_txt_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_txt); -} - -static int html_attr_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_attr); -} - -static int html_url_path_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_url_path); -} - -static int html_url_arg_lua_filter(lua_State *lua_state) -{ - return hook_lua_filter(lua_state, html_url_arg); -} - -static void cleanup_lua_filter(struct cgit_filter *base) -{ - struct lua_filter *filter = (struct lua_filter *) base; - - if (!filter->lua_state) - return; - - lua_close(filter->lua_state); - filter->lua_state = NULL; - if (filter->script_file) { - free(filter->script_file); - filter->script_file = NULL; - } -} - -static int init_lua_filter(struct lua_filter *filter) -{ - if (filter->lua_state) - return 0; - - if (!(filter->lua_state = luaL_newstate())) - return 1; - - luaL_openlibs(filter->lua_state); - - lua_pushcfunction(filter->lua_state, html_lua_filter); - lua_setglobal(filter->lua_state, "html"); - lua_pushcfunction(filter->lua_state, html_txt_lua_filter); - lua_setglobal(filter->lua_state, "html_txt"); - lua_pushcfunction(filter->lua_state, html_attr_lua_filter); - lua_setglobal(filter->lua_state, "html_attr"); - lua_pushcfunction(filter->lua_state, html_url_path_lua_filter); - lua_setglobal(filter->lua_state, "html_url_path"); - lua_pushcfunction(filter->lua_state, html_url_arg_lua_filter); - lua_setglobal(filter->lua_state, "html_url_arg"); - - if (luaL_dofile(filter->lua_state, filter->script_file)) { - error_lua_filter(filter); - lua_close(filter->lua_state); - filter->lua_state = NULL; - return 1; - } - return 0; -} - -static int open_lua_filter(struct cgit_filter *base, va_list ap) -{ - struct lua_filter *filter = (struct lua_filter *) base; - int i; - - if (init_lua_filter(filter)) - return 1; - - hook_write(base, write_lua_filter); - - lua_getglobal(filter->lua_state, "filter_open"); - for (i = 0; i < filter->base.argument_count; ++i) - lua_pushstring(filter->lua_state, va_arg(ap, char *)); - if (lua_pcall(filter->lua_state, filter->base.argument_count, 0, 0)) { - error_lua_filter(filter); - return 1; - } - return 0; -} - -static int close_lua_filter(struct cgit_filter *base) -{ - struct lua_filter *filter = (struct lua_filter *) base; - int ret = 0; - - lua_getglobal(filter->lua_state, "filter_close"); - if (lua_pcall(filter->lua_state, 0, 0, 0)) { - error_lua_filter(filter); - ret = 1; - } - unhook_write(); - return ret; -} - -static void fprintf_lua_filter(struct cgit_filter *base, FILE *f, const char *prefix) -{ - struct lua_filter *filter = (struct lua_filter *) base; - fprintf(f, "%slua:%s\n", prefix, filter->script_file); -} - - -static struct cgit_filter *new_lua_filter(const char *cmd, int argument_count) -{ - struct lua_filter *filter; - - filter = xmalloc(sizeof(*filter)); - memset(filter, 0, sizeof(*filter)); - filter->base.open = open_lua_filter; - filter->base.close = close_lua_filter; - filter->base.fprintf = fprintf_lua_filter; - filter->base.cleanup = cleanup_lua_filter; - filter->base.argument_count = argument_count; - filter->script_file = xstrdup(cmd); - - return &filter->base; -} - -#endif - - int cgit_open_filter(struct cgit_filter *filter, ...) { int result; @@ -374,9 +191,6 @@ static const struct { struct cgit_filter *(*ctor)(const char *cmd, int argument_count); } filter_specs[] = { { "exec", new_exec_filter }, -#ifndef NO_LUA - { "lua", new_lua_filter }, -#endif }; struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype) |