{"id":52,"date":"2024-04-07T20:02:02","date_gmt":"2024-04-07T12:02:02","guid":{"rendered":"http:\/\/175.178.247.106\/?p=52"},"modified":"2025-03-04T20:02:44","modified_gmt":"2025-03-04T12:02:44","slug":"lua%e8%84%9a%e6%9c%ac%e5%8a%a0%e5%af%86%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"http:\/\/175.178.247.106\/index.php\/2024\/04\/07\/lua%e8%84%9a%e6%9c%ac%e5%8a%a0%e5%af%86%ef%bc%88%e4%ba%8c%ef%bc%89\/","title":{"rendered":"Lua\u811a\u672c\u52a0\u5bc6\uff08\u4e8c\uff09"},"content":{"rendered":"\n

<\/p>\n\n\n\n

\u5982\u4f55\u5b9e\u73b0\u540c\u65f6\u652f\u6301\u52a0\u5bc6\u548c\u672a\u52a0\u5bc6\u7684 lua \u811a\u672c<\/h2>\n\n\n\n

\u53ef\u4ee5\u5728\u52a0\u5bc6\u6587\u4ef6\u7684\u5934\u90e8\uff0c\u589e\u52a0\u6807\u8bb0\u5b57\u7b26\uff0c\u8fd8\u53ef\u4ee5\u589e\u52a0\u6269\u5c55\u7248\u672c\u53f7\u3002\u6bd4\u5982\u5728\u52a0\u5bc6\u7684 Lua \u811a\u672c\u7684\u6700\u5f00\u5934\u589e\u52a0\u5b57\u7b26<\/p>\n\n\n\n

WWW.JESSON32.CN_101<\/p>\n\n\n\n

\u5176\u4e2d 101 \u53ef\u4ee5\u662f\u7248\u672c\u53f7\uff0c\u8f6c\u4e3a\u4e24\u4e2a\u5b57\u8282\u5199\u5165\u6587\u4ef6\u3002<\/p>\n\n\n\n

\u5982\u679c\u6709\u5199\u5165\u7684\u7b7e\u540d\uff0c\u90a3\u4e48\u5c31\u662f\u52a0\u5bc6\u6587\u4ef6\uff0c\u6ca1\u6709\u5c31\u5f53\u4f5c\u672a\u52a0\u5bc6\u7684 Lua \u811a\u672c\u3002<\/p>\n\n\n\n

\u56de\u5230 ngx_http_lua_clfactory_loadfile \u51fd\u6570<\/p>\n\n\n\n

ngx_int_t\nngx_http_lua_clfactory_loadfile(lua_State *L, const char *filename)\n{\n    \n    ...\n\n    status = lua_load(L, ngx_http_lua_clfactory_getF, &lf,\n                      lua_tostring(L, -1));\n    ...\n}<\/code><\/pre>\n\n\n\n
lf \u88ab\u4f5c\u4e3a\u4e0a\u4e0b\u6587\u4f20\u7ed9\u4e86ngx_http_lua_clfactory_getF\uff0c\u5176\u4e2d\u5c31\u6709\u6587\u4ef6\u6307\u9488\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728 lf \u751f\u547d\u4e4b\u540e\u589e\u52a0\u521d\u59cb\u5316\uff0c\u4e3a\u4e86\u4e0d\u5f71\u54cd\u4e4b\u524d\u7684 \u903b\u8f91\uff0c\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u65b0\u589e\u4e00\u4e2a ctx\u3002<\/p>\n\n\n\n
typedef struct {\n    ngx_http_lua_clfactory_file_type_e file_type;\n\n    int         extraline;\n    FILE       *f;\n#ifndef OPENRESTY_LUAJIT\n    int         sent_begin;\n    int         sent_end;\n    size_t      begin_code_len;\n    size_t      end_code_len;\n    size_t      rest_len;\n    union {\n        char   *ptr;\n        char    str[MAX_BEGIN_CODE_SIZE];\n    }           begin_code;\n    union {\n        char   *ptr;\n        char    str[MAX_END_CODE_SIZE];\n    }           end_code;\n#endif \/* OPENRESTY_LUAJIT *\/\n    char        buff[NGX_LUA_READER_BUFSIZE];\n    FileReaderCtx ctx; \/\/ \u65b0\u589e\u7684 context\n} ngx_http_lua_clfactory_file_ctx_t;<\/code><\/pre>\n\n\n\n
\ntypedef struct FileReaderCtx {\n    FILE *fp;\n    char buf[LUAL_BUFFERSIZE];\n    int startpos;\n    int endpos; \n\n    unsigned char first;        \n    unsigned char encrypted;  \n    uint64_t pre;\n    uint64_t key;\n    uint8_t mod;\n    uint64_t surplus;         \n}FileReaderCtx;\n\n<\/code><\/pre>\n\n\n\n
\u5728 ngx_http_lua_clfactory_getF \u51fd\u6570\u4e2d\u5c31\u53ef\u4ee5\u901a\u8fc7 ngx_http_lua_clfactory_file_ctx_t \u83b7\u53d6\u5230 ctx \u4e86.<\/p>\n\n\n\n
\u901a\u8fc7 first \u83b7\u53d6\u662f\u5426\u662f\u7b2c\u4e00\u6b21\u8bfb\u53d6\uff0c\u7b2c\u4e00\u6b21\u8bfb\u53d6\u7684\u8bdd\uff0c\u5224\u65ad\u524d\u51e0\u4e2a\u5b57\u8282\u662f\u5426\u6709\u52a0\u5bc6\u7b7e\u540d\u3002encrypted \u5c31\u662f\u5224\u65ad\u7ed3\u675f\u540e\u7684\u4e00\u4e2a\u6807\u8bb0\uff0c\u8fd9\u6837\u4e0b\u6b21\u8bfb\u53d6\u7684\u65f6\u5019\u5c31\u4e0d\u7528\u518d\u5224\u65ad\u662f\u5426\u662f\u52a0\u5bc6\u6587\u4ef6\u4e86\u3002<\/p>\n\n\n\n
\u540e\u9762\u7684 key,mod, surplus \u90fd\u548c\u52a0\u5bc6\u76f8\u5173\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u5b9e\u73b0\u540c\u65f6\u652f\u6301\u52a0\u5bc6\u548c\u672a\u52a0\u5bc6\u7684 lua \u811a\u672c \u53ef\u4ee5\u5728\u52a0\u5bc6\u6587\u4ef6\u7684\u5934\u90e8\uff0c\u589e\u52a0\u6807\u8bb0\u5b57\u7b26\uff0c\u8fd8\u53ef\u4ee5\u589e\u52a0\u6269\u5c55\u7248\u672c\u53f7\u3002\u6bd4\u5982\u5728\u52a0\u5bc6\u7684 Lua \u811a\u672c\u7684\u6700\u5f00\u5934\u589e\u52a0\u5b57\u7b26 WWW.JE…<\/p>\n
 Read More  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-52","post","type-post","status-publish","format-standard","hentry","category-15"],"_links":{"self":[{"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/posts\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/comments?post=52"}],"version-history":[{"count":1,"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":53,"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions\/53"}],"wp:attachment":[{"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/175.178.247.106\/index.php\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}