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| version 1.7, 2001/03/26 10:36:52 | version 1.73, 2002/03/25 11:55:26 |
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| Line 1 | Line 1 |
| /* | /** @file |
| Parser | Parser: @b file parser class. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | |
| $Id$ | $Id$ |
| */ | */ |
| #include "pa_config_includes.h" | |
| #include "pcre.h" | |
| #include "classes.h" | |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "_file.h" | |
| #include "pa_vfile.h" | #include "pa_vfile.h" |
| #include "pa_table.h" | |
| #include "pa_vint.h" | |
| #include "pa_exec.h" | |
| #include "pa_vdate.h" | |
| #include "pa_dir.h" | |
| #include "pa_vtable.h" | |
| #include "pa_charset.h" | |
| // consts | |
| // defines | |
| #define FILE_CLASS_NAME "file" | |
| #define TEXT_MODE_NAME "text" | |
| // class | |
| // global var | class MFile : public Methoded { |
| public: // VStateless_class | |
| Value *create_new_value(Pool& pool) { return new(pool) VFile(pool); } | |
| VStateless_class *file_class; | public: // Methoded |
| bool used_directly() { return true; } | |
| public: | |
| MFile(Pool& pool); | |
| }; | |
| // consts | |
| const int FIND_MONKEY_MAX_HOPS=10; | |
| // methods | // methods |
| /// @test mkdirs | static void _save(Request& r, const String&, MethodParams *params) { |
| static void _save(Request& r, const String& method_name, Array *params) { | Value& vmode_name=params-> as_no_junction(0, "mode must not be code"); |
| Pool& pool=r.pool(); | Value& vfile_name=params->as_no_junction(1, "file name must not be code"); |
| Value *vfile_name=static_cast<Value *>(params->get(0)); | |
| // forcing | |
| // ^save[this body type] | |
| r.fail_if_junction_(true, *vfile_name, | |
| method_name, "file name must not be junction"); | |
| // forcing untaint language | |
| String lfile_name(pool); | |
| lfile_name.append(vfile_name->as_string(), | |
| String::UL_FILE_NAME, true); | |
| // save | // save |
| static_cast<VFile *>(r.self)->save(r.absolute(lfile_name)); | static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()), |
| vmode_name.as_string()==TEXT_MODE_NAME); | |
| } | |
| static void _delete(Request& r, const String&, MethodParams *params) { | |
| Value& vfile_name=params->as_no_junction(0, "file name must not be code"); | |
| // unlink | |
| file_delete(r.absolute(vfile_name.as_string())); | |
| } | |
| static void _move(Request& r, const String&, MethodParams *params) { | |
| Value& vfrom_file_name=params->as_no_junction(0, "from file name must not be code"); | |
| Value& vto_file_name=params->as_no_junction(1, "to file name must not be code"); | |
| // move | |
| file_move( | |
| r.absolute(vfrom_file_name.as_string()), | |
| r.absolute(vto_file_name.as_string())); | |
| } | |
| static void _find(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| Value& vfile_name=params->as_no_junction(0, "file name must not be code"); | |
| const String &lfile_name=vfile_name.as_string(); | |
| // passed file name simply exists in current dir | |
| if(file_readable(r.absolute(lfile_name))) { | |
| r.write_no_lang(*new(pool) VString(lfile_name)); | |
| return; | |
| } | |
| // scan .. dirs for result | |
| for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) { | |
| String test_name(pool); | |
| for(int j=0; j<i; j++) | |
| test_name.APPEND_CONST("../"); | |
| test_name.append(lfile_name, String::UL_CLEAN); | |
| if(file_readable(r.absolute(test_name))) { | |
| r.write_no_lang(*new(pool) VString(*new(pool) String(test_name))); | |
| return; | |
| } | |
| } | |
| // not found | |
| if(params->size()==2) { | |
| Value& not_found_code=params->as_junction(1, "not-found param must be code"); | |
| r.write_pass_lang(r.process(not_found_code)); | |
| } | |
| } | |
| static void _load(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| Value& vmode_name=params-> as_no_junction(0, "mode must not be code"); | |
| Value& vfile_name=params->as_no_junction(1, "file name must not be code"); | |
| const String& lfile_name=vfile_name.as_string(); | |
| void *data; size_t size; | |
| file_read(pool, r.absolute(lfile_name), data, size, | |
| vmode_name.as_string()==TEXT_MODE_NAME); | |
| char *user_file_name=params->size()>2? | |
| params->as_string(2, "filename must be string").cstr(String::UL_FILE_SPEC) | |
| :lfile_name.cstr(String::UL_FILE_SPEC); | |
| static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size, | |
| user_file_name, new(pool) VString(r.mime_type_of(user_file_name))); | |
| } | |
| static void _stat(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| Value& vfile_name=params->as_no_junction(0, "file name must not be code"); | |
| const String& lfile_name=vfile_name.as_string(); | |
| size_t size; | |
| time_t atime, mtime, ctime; | |
| file_stat(r.absolute(lfile_name), | |
| size, | |
| atime, mtime, ctime); | |
| VFile& vfile=*static_cast<VFile *>(r.self); | |
| vfile.set(true/*tainted*/, 0/*no bytes*/, size); | |
| Hash& ff=vfile.fields(); | |
| ff.put(*new(pool) String(pool, "adate"), new(pool) VDate(pool, atime)); | |
| ff.put(*new(pool) String(pool, "mdate"), new(pool) VDate(pool, mtime)); | |
| ff.put(*new(pool) String(pool, "cdate"), new(pool) VDate(pool, ctime)); | |
| } | |
| static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) { | |
| Hash& hash=*static_cast<Hash *>(info); | |
| hash.put(key, &static_cast<Value *>(value)->as_string()); | |
| } | |
| static void pass_cgi_header_attribute(Array::Item *value, void *info) { | |
| String& string=*static_cast<String *>(value); | |
| Hash& hash=*static_cast<Hash *>(info); | |
| int colon_pos=string.pos(":", 1); | |
| if(colon_pos>0) | |
| hash.put(string.mid(0, colon_pos), | |
| new(string.pool()) VString(string.mid(colon_pos+1, string.size()))); | |
| } | |
| /** @todo fix `` in perl - they produced flipping consoles and no output to perl | |
| @test EPASS, ECSTR [touched them when optimized hash] | |
| */ | |
| static void _exec_cgi(Request& r, const String& method_name, MethodParams *params, | |
| bool cgi) { | |
| Pool& pool=r.pool(); | |
| Value& vfile_name=params->as_no_junction(0, "file name must not be code"); | |
| const String& script_name=r.absolute(vfile_name.as_string()); | |
| Hash env(pool); | |
| #define ECSTR(name, value_cstr) \ | |
| String name##key(pool, #name); \ | |
| String name##value(pool); \ | |
| if(value_cstr) { \ | |
| name##value.APPEND_CONST(value_cstr); \ | |
| env.put(name##key, &name##value); \ | |
| } | |
| #define EPASS(name) \ | |
| String name##key(pool, #name); \ | |
| String name##value(pool); \ | |
| if(const char *value_cstr=SAPI::get_env(pool, #name)) { \ | |
| name##value.APPEND_CONST(value_cstr); \ | |
| env.put(name##key, &name##value); \ | |
| } | |
| // const | |
| ECSTR(GATEWAY_INTERFACE, "CGI/1.1"); | |
| // from Request.info | |
| ECSTR(DOCUMENT_ROOT, r.info.document_root); | |
| ECSTR(PATH_TRANSLATED, r.info.path_translated); | |
| ECSTR(REQUEST_METHOD, r.info.method); | |
| ECSTR(QUERY_STRING, r.info.query_string); | |
| ECSTR(REQUEST_URI, r.info.uri); | |
| ECSTR(CONTENT_TYPE, r.info.content_type); | |
| char content_length_cstr[MAX_NUMBER]; | |
| snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length); | |
| String content_length(pool, content_length_cstr); | |
| ECSTR(CONTENT_LENGTH, content_length_cstr); | |
| ECSTR(HTTP_COOKIE, r.info.cookie); | |
| ECSTR(HTTP_USER_AGENT, r.info.user_agent); | |
| // passing some SAPI:get_env-s | |
| EPASS(SERVER_PROTOCOL); | |
| EPASS(SERVER_NAME); | |
| EPASS(SERVER_PORT); | |
| EPASS(HTTP_REFERER); | |
| EPASS(REMOTE_ADDR); | |
| EPASS(REMOTE_HOST); | |
| EPASS(REMOTE_USER); | |
| // SCRIPT_NAME | |
| env.put(*new(pool) String(pool, "SCRIPT_NAME"), &script_name); | |
| #ifdef WIN32 | |
| // WIN32 shell | |
| EPASS(COMSPEC); | |
| #endif | |
| if(params->size()>1) { | |
| Value& venv=params->as_no_junction(1, "env must not be code"); | |
| if(Hash *user_env=venv.get_hash(&method_name)) | |
| user_env->for_each(append_env_pair, &env); | |
| } | |
| Array *argv=0; | |
| if(params->size()>2) { | |
| argv=new(pool) Array(pool, params->size()-2); | |
| for(int i=2; i<params->size(); i++) | |
| *argv+=¶ms->as_string(i, "parameter must be string"); | |
| } | |
| String in(pool); | |
| in.APPEND(r.post_data, r.post_size, String::UL_CLEAN, "passing post data", 0); | |
| String out(pool); | |
| //out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body"); | |
| //out<<in; | |
| String& err=*new(pool) String(pool); | |
| int status=pa_exec(false/*forced_allow*/, script_name, &env, argv, in, out, err); | |
| VFile& self=*static_cast<VFile *>(r.self); | |
| const String *body=&out; // ^file:exec | |
| if(cgi) { // ^file:cgi | |
| // construct with 'out' body and header | |
| int delim_size; | |
| const char *eol_marker="\r\n"; size_t eol_marker_size=2; | |
| int pos=out.pos("\r\n\r\n", delim_size=4); | |
| if(pos<0) { | |
| eol_marker="\n"; eol_marker_size=1; | |
| pos=out.pos("\n\n", delim_size=2); | |
| } | |
| if(pos<0) { | |
| delim_size=0; // calm down, compiler | |
| throw Exception(0, 0, | |
| &method_name, | |
| "output does not contain CGI header; exit code=%d; outsize=%u; out: \"%s\"; errsize=%u; err: \"%s\"", | |
| status, | |
| (uint)out.size(), out.cstr(), | |
| (uint)err.size(), err.cstr()); | |
| } | |
| const String& header=out.mid(0, pos); | |
| body=&out.mid(pos+delim_size, out.size()); | |
| // header to $fields | |
| { | |
| Array rows(pool); | |
| header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN); | |
| rows.for_each(pass_cgi_header_attribute, &self.fields()); | |
| } | |
| } | |
| // body | |
| self.set(false/*not tainted*/, body->cstr(), body->size()); | |
| // $status | |
| self.fields().put( | |
| *new(pool) String(pool, "status"), | |
| new(pool) VInt(pool, status)); | |
| // $stderr | |
| if(err.size()) { | |
| self.fields().put( | |
| *new(pool) String(pool, "stderr"), | |
| new(pool) VString(err)); | |
| SAPI::log(pool, "file:%s: %s", cgi?"cgi":"exec", err.cstr()); | |
| } | |
| } | |
| static void _exec(Request& r, const String& method_name, MethodParams *params) { | |
| _exec_cgi(r, method_name, params, false); | |
| } | |
| static void _cgi(Request& r, const String& method_name, MethodParams *params) { | |
| _exec_cgi(r, method_name, params, true); | |
| } | } |
| static void _delete(Request& r, const String& method_name, Array *params) { | static void _list(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Value *vfile_name=static_cast<Value *>(params->get(0)); | |
| // forcing | Value& relative_path=params->as_no_junction(0, "path must not be code"); |
| // ^delete[this body type] | |
| r.fail_if_junction_(true, *vfile_name, | const String *regexp; |
| method_name, "file name must not be junction"); | pcre *regexp_code; |
| int ovecsize; | |
| // forcing untaint language | int *ovector; |
| String lfile_name(pool); | if(params->size()>1) { |
| lfile_name.append(vfile_name->as_string(), | regexp=¶ms->as_no_junction(1, "regexp must not be code").as_string(); |
| String::UL_FILE_NAME, true); | |
| const char *pattern=regexp->cstr(); | |
| const char *errptr; | |
| int erroffset; | |
| regexp_code=pcre_compile(pattern, PCRE_EXTRA | PCRE_DOTALL, | |
| &errptr, &erroffset, | |
| pool.get_client_charset().pcre_tables); | |
| if(!regexp_code) | |
| throw Exception(0, 0, | |
| ®exp->mid(erroffset, regexp->size()), | |
| "regular expression syntax error - %s", errptr); | |
| ovector=(int *)pool.malloc(sizeof(int)*(ovecsize=(1/*match*/)*3)); | |
| } else | |
| regexp_code=0; | |
| const char* absolute_path_cstr=r.absolute(relative_path.as_string()) | |
| .cstr(String::UL_FILE_SPEC); | |
| Array& columns=*new(pool) Array(pool); | |
| columns+=new(pool) String(pool, "name"); | |
| Table& table=*new(pool) Table(pool, &method_name, &columns); | |
| LOAD_DIR(absolute_path_cstr, | |
| size_t file_name_size=strlen(ffblk.ff_name); | |
| bool suits=true; | |
| if(regexp_code) { | |
| int exec_result=pcre_exec(regexp_code, 0, | |
| ffblk.ff_name, file_name_size, 0, | |
| 0, ovector, ovecsize); | |
| if(exec_result==PCRE_ERROR_NOMATCH) | |
| suits=false; | |
| else if(exec_result<0) { | |
| (*pcre_free)(regexp_code); | |
| throw Exception(0, 0, | |
| regexp, | |
| "regular expression execute (%d)", | |
| exec_result); | |
| } | |
| } | |
| if(suits) { | |
| char *file_name_cstr=(char *)pool.malloc(file_name_size); | |
| memcpy(file_name_cstr, ffblk.ff_name, file_name_size); | |
| String &file_name=*new(pool) String(pool); | |
| file_name.APPEND(file_name_cstr, file_name_size, String::UL_FILE_SPEC, | |
| method_name.origin().file, method_name.origin().line); | |
| // unlink | Array& row=*new(pool) Array(pool); |
| file_delete(pool, r.absolute(lfile_name)); | row+=&file_name; |
| table+=&row; | |
| } | |
| ); | |
| if(regexp_code) | |
| (*pcre_free)(regexp_code); | |
| // write out result | |
| VTable& result=*new(pool) VTable(pool, &table); | |
| result.set_name(method_name); | |
| r.write_no_lang(result); | |
| } | |
| #ifndef DOXYGEN | |
| struct Lock_execute_body_info { | |
| Request *r; | |
| Value *body_code; | |
| }; | |
| #endif | |
| static void lock_execute_body(int , void *context) { | |
| Lock_execute_body_info& info=*static_cast<Lock_execute_body_info *>(context); | |
| // execute body | |
| info.r->write_assign_lang(info.r->process(*info.body_code)); | |
| }; | |
| static void _lock(Request& r, const String& method_name, MethodParams *params) { | |
| const String& file_spec=r.absolute(params->as_string(0, "file name must be string")); | |
| Value& body_code=params->as_junction(1, "body must be code"); | |
| Lock_execute_body_info info={&r, &body_code}; | |
| file_write_action_under_lock(file_spec, "lock", lock_execute_body, &info); | |
| } | } |
| // initialize | // constructor |
| MFile::MFile(Pool& apool) : Methoded(apool) { | |
| set_name(*NEW String(pool(), FILE_CLASS_NAME)); | |
| void initialize_file_class(Pool& pool, VStateless_class& vclass) { | |
| // ^save[file-name] | // ^save[mode;file-name] |
| vclass.add_native_method("save", _save, 1, 1); | add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2); |
| // ^delete[file-name] | // ^delete[file-name] |
| vclass.add_native_method("delete", _delete, 1, 1); | add_native_method("delete", Method::CT_STATIC, _delete, 1, 1); |
| // ^move[from-file-name;to-file-name] | |
| add_native_method("move", Method::CT_STATIC, _move, 2, 2); | |
| // ^find[file-name] | |
| // ^find[file-name]{when-not-found} | |
| add_native_method("find", Method::CT_STATIC, _find, 1, 2); | |
| // ^load[mode;disk-name] | |
| // ^load[mode;disk-name;user-name] | |
| add_native_method("load", Method::CT_DYNAMIC, _load, 2, 3); | |
| // ^stat[disk-name] | |
| add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1); | |
| // ^cgi[file-name] | |
| // ^cgi[file-name;env hash] | |
| // ^cgi[file-name;env hash;1cmd;2line;3ar;4g;5s] | |
| add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+10); | |
| // ^exec[file-name] | |
| // ^exec[file-name;env hash] | |
| // ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s] | |
| add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 2+10); | |
| // ^file:list[path] | |
| // ^file:list[path][regexp] | |
| add_native_method("list", Method::CT_STATIC, _list, 1, 2); | |
| // ^file:lock[path]{code} | |
| add_native_method("lock", Method::CT_STATIC, _lock, 2, 2); | |
| } | |
| // global variable | |
| Methoded *file_class; | |
| // creator | |
| Methoded *MFile_create(Pool& pool) { | |
| return file_class=new(pool) MFile(pool); | |
| } | } |