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| version 1.32, 2002/03/25 11:55:26 | version 1.48.2.18.2.7, 2003/03/21 15:00:36 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: program executing for different OS-es. | Parser: program executing for different OS-es. |
| Copyright(c) 2000,2001, 2002 ArtLebedev Group(http://www.artlebedev.com) | Copyright(c) 2000,2001-2003 ArtLebedev Group(http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| $Id$ | |
| @todo setrlimit | @todo setrlimit |
| */ | */ |
| static const char* IDENT_EXEC_C="$Date$"; | |
| #include "pa_config_includes.h" | #include "pa_config_includes.h" |
| #include "pa_exec.h" | #include "pa_exec.h" |
| Line 27 | Line 26 |
| #ifdef WIN32 | #ifdef WIN32 |
| /// this func from http://www.ccas.ru/~posp/popov/spawn.htm | /// this func from http://www.ccas.ru/~posp/popov/spawn.htm |
| static BOOL WINAPI CreateHiddenConsoleProcess(LPCTSTR szCmdLine, | static DWORD CreateHiddenConsoleProcess(LPCTSTR szCmdLine, |
| char *szEnv, | char *szEnv, |
| PROCESS_INFORMATION* ppi, | PROCESS_INFORMATION* ppi, |
| LPHANDLE phInWrite, | LPHANDLE phInWrite, |
| LPHANDLE phOutRead, | LPHANDLE phOutRead, |
| LPHANDLE phErrRead) | LPHANDLE phErrRead) |
| { | { |
| BOOL fCreated; | DWORD result=0; |
| BOOL fCreated; | |
| STARTUPINFO si; | STARTUPINFO si; |
| SECURITY_ATTRIBUTES sa={0}; | SECURITY_ATTRIBUTES sa={0}; |
| HANDLE hInRead; | HANDLE hInRead; |
| Line 73 static BOOL WINAPI CreateHiddenConsolePr | Line 73 static BOOL WINAPI CreateHiddenConsolePr |
| // calculating script's directory | // calculating script's directory |
| char dir[MAX_STRING]; | char dir[MAX_STRING]; |
| strncpy(dir, szCmdLine, MAX_STRING-1); dir[MAX_STRING-1]=0; | strncpy(dir, szCmdLine, MAX_STRING-1); dir[MAX_STRING-1]=0; |
| lsplit(dir,' '); // trim arguments | |
| rsplit(dir,'/'); rsplit(dir,'\\'); // trim filename | rsplit(dir,'/'); rsplit(dir,'\\'); // trim filename |
| chdir(dir); | chdir(dir); |
| Line 87 static BOOL WINAPI CreateHiddenConsolePr | Line 88 static BOOL WINAPI CreateHiddenConsolePr |
| dir, | dir, |
| &si, | &si, |
| ppi); | ppi); |
| if(!fCreated) | |
| result=GetLastError(); | |
| CloseHandle(hInRead); | CloseHandle(hInRead); |
| CloseHandle(hOutWrite); | CloseHandle(hOutWrite); |
| Line 95 static BOOL WINAPI CreateHiddenConsolePr | Line 98 static BOOL WINAPI CreateHiddenConsolePr |
| if(!fCreated) | if(!fCreated) |
| goto error; | goto error; |
| return TRUE; | return result; |
| error: | error: |
| if(!result/*yet*/) | |
| result=GetLastError(); // get it | |
| CloseHandle(*phInWrite); | CloseHandle(*phInWrite); |
| CloseHandle(*phOutRead); | CloseHandle(*phOutRead); |
| CloseHandle(*phErrRead); | CloseHandle(*phErrRead); |
| return FALSE; | return result; |
| } | } |
| static void read_pipe(String& result, HANDLE hOutRead, const char *file_spec){ | static void read_pipe(String& result, HANDLE hOutRead, String::Language lang){ |
| while(true) { | while(true) { |
| char *buf=(char *)result.pool().malloc(MAX_STRING); | char *buf=new(PointerFreeGC) char[MAX_STRING]; |
| unsigned long size; | unsigned long size; |
| if(!ReadFile(hOutRead, buf, MAX_STRING, &size, NULL) || !size) | if(!ReadFile(hOutRead, buf, MAX_STRING, &size, NULL) || !size) |
| break; | break; |
| result.APPEND_AS_IS(buf, size, file_spec, 0); | result.append(buf, size, lang); |
| } | } |
| } | } |
| static const char* buildCommand(const char* file_spec_cstr, const ArrayString& argv) { | |
| static const char *buildCommand(Pool& pool, | const char* result=file_spec_cstr; |
| const String& origin_string, | |
| const char *file_spec_cstr, const Array *argv) { | |
| const char *result=file_spec_cstr; | |
| if(FILE *f=fopen(file_spec_cstr, "r")) { | if(FILE *f=fopen(file_spec_cstr, "r")) { |
| try { | |
| char buf[MAX_STRING]; | char buf[MAX_STRING]; |
| size_t size=fread(buf, 1, MAX_STRING-1, f); | size_t size=fread(buf, 1, MAX_STRING-1, f); |
| if(size>2) { | if(size>2) { |
| buf[size]=0; | buf[size]=0; |
| if(strncmp(buf, "#!", 2)==0) { | if(strncmp(buf, "#!", 2)==0) { |
| const char *begin=buf+2; | const char* begin=buf+2; |
| if(*begin==' ') // alx: were an old magic for some linux-es | if(*begin==' ') // alx: were an old magic for some linux-es |
| begin++; | begin++; |
| if(char *end=strchr(begin, '\n')) { | if(char *end=strchr(begin, '\n')) { |
| String string(pool); | String string(begin, end-begin); |
| string.APPEND_AS_IS(begin, end-begin, | |
| origin_string.origin().file, 0); | |
| string << " " << file_spec_cstr; | string << " " << file_spec_cstr; |
| if(argv) | |
| for(int i=0; i<argv->size(); i++) | |
| string << argv->get_string(i)->cstr(); | |
| result=string.cstr(); | result=string.cstr(); |
| } | } |
| } | } |
| } | } |
| } catch(...) { | |
| fclose(f); | |
| rethrow; | |
| } | |
| fclose(f); | fclose(f); |
| } | } |
| if(argv) { | { // appending argv |
| String buf(pool); | String string(result); |
| buf << result; | for(int i=0; i<argv.count(); i++) { |
| for(int i=0; i<argv->size(); i++) { | string << " "; |
| buf << " "; | string << *argv[i]; |
| buf << *argv->get_string(i); | |
| } | } |
| result=buf.cstr(); | result=string.cstr(); |
| } | } |
| return result; | return result; |
| Line 159 static const char *buildCommand(Pool& po | Line 161 static const char *buildCommand(Pool& po |
| #else | #else |
| static int execve_piped(const char *file_spec_cstr, | static pid_t execve_piped(const char* file_spec_cstr, |
| char * const argv[], char * const env[], | char * const argv[], char * const env[], |
| int *pipe_in, int *pipe_out, int *pipe_err) { | int *pipe_in, int *pipe_out, int *pipe_err) { |
| int pid; | pid_t pid; |
| int in_fds[2]; | int in_fds[2]; |
| int out_fds[2]; | int out_fds[2]; |
| int err_fds[2]; | int err_fds[2]; |
| Line 207 static int execve_piped(const char *file | Line 209 static int execve_piped(const char *file |
| close(err_fds[0]); close(err_fds[1]); | close(err_fds[0]); close(err_fds[1]); |
| } | } |
| errno=save_errno; | errno=save_errno; |
| return 0; | return -1; |
| } | } |
| if(!pid) { | if(!pid) { |
| Line 231 static int execve_piped(const char *file | Line 233 static int execve_piped(const char *file |
| close(err_fds[1]); | close(err_fds[1]); |
| } | } |
| /* HP-UX SIGCHLD fix goes here, if someone will remind me what it is... */ | /* grabbed this from Apache source: */ |
| /* HP-UX SIGCHLD fix goes here, if someone will remind me what it is... */ | |
| signal(SIGCHLD, SIG_DFL); /* Was that it? */ | signal(SIGCHLD, SIG_DFL); /* Was that it? */ |
| // chdir to script's directory | // chdir to script's directory |
| Line 273 static int get_exit_status(int pid) { | Line 276 static int get_exit_status(int pid) { |
| WEXITSTATUS(status) : -2; | WEXITSTATUS(status) : -2; |
| } | } |
| static void read_pipe(String& result, int file, const char *file_spec){ | static void read_pipe(String& result, int file, String::Language lang){ |
| while(true) { | while(true) { |
| char *buf=(char *)result.pool().malloc(MAX_STRING); | char *buf=new(PointerFreeGC) char[MAX_STRING]; |
| size_t size=read(file, buf, MAX_STRING); | ssize_t size=read(file, buf, MAX_STRING); |
| if(!size) | if(size<=0) |
| break; | break; |
| result.APPEND_AS_IS(buf, size, file_spec, 0); | result.append(buf, size, lang); |
| } | } |
| } | } |
| #endif | #endif |
| ///@test maybe here and at argv construction --- cstr(String::UL_UNSPECIFIED | #ifndef DOXYGEN |
| static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) { | struct Append_env_pair_info { |
| #ifdef WIN32 | #ifdef WIN32 |
| String& string=*static_cast<String *>(info); | String& string; |
| Append_env_pair_info(String& astring): string(astring) {} | |
| string << key << "=" << *static_cast<String *>(value); | #else |
| string.APPEND_AS_IS("", 1, 0, 0); // zero byte | char **env_ref; |
| #endif | |
| }; | |
| #endif | |
| ///@test maybe here and at argv construction --- cstr(String::L_UNSPECIFIED | |
| static void append_env_pair(HashStringString::key_type key, HashStringString::value_type value, | |
| Append_env_pair_info *info) { | |
| #ifdef WIN32 | |
| info->string << key << "=" << *value; | |
| info->string.append("", 1, String::L_AS_IS); // zero byte | |
| #else | #else |
| String string(key.pool()); | String string; |
| string << key << "=" << *static_cast<String *>(value); | string << key << "=" << *value; |
| char ***env_ref=static_cast<char ***>(info); | *(info->env_ref++)=string.cstr(*info->String::L_UNSPECIFIED); |
| **env_ref=string.cstr(); (*env_ref)++; | |
| #endif | #endif |
| } | } |
| int pa_exec( | /// @todonow unix part to smart_ptr |
| bool forced_allow, | PA_exec_result pa_exec( |
| bool forced_allow, | |
| const String& file_spec, | const String& file_spec, |
| const Hash *env, | const HashStringString* env, |
| const Array *argv, | const ArrayString& argv, |
| const String& in, String& out, String& err) { | String& in) { |
| Pool& pool=file_spec.pool(); | PA_exec_result result; |
| #ifdef NO_PA_EXECS | #ifdef NO_PA_EXECS |
| if(!forced_allow) | if(!forced_allow) |
| throw Exception(0, 0, | throw Exception("parser.runtime", |
| &file_spec, | &file_spec, |
| "parser execs are disabled [recompile parser without --disable-execs configure option]"); | "parser execs are disabled [recompile parser without --disable-execs configure option]"); |
| #endif | #endif |
| const char* file_spec_cstr=file_spec.cstr(String::L_FILE_SPEC); | |
| #ifdef WIN32 | #ifdef WIN32 |
| PROCESS_INFORMATION pi; | PROCESS_INFORMATION pi; |
| HANDLE hInWrite, hOutRead, hErrRead; | HANDLE hInWrite, hOutRead, hErrRead; |
| char *file_spec_cstr=file_spec.cstr(String::UL_FILE_SPEC); | const char* cmd=buildCommand(file_spec.cstr(String::L_FILE_SPEC), argv); |
| const char *cmd=buildCommand(file_spec.pool(), file_spec, file_spec_cstr, argv); | char* env_cstr; |
| char *env_cstr=0; | |
| if(env) { | if(env) { |
| String string(env->pool()); | String string; |
| env->for_each(append_env_pair, &string); | Append_env_pair_info info(string); |
| env_cstr=string.cstr(); | env->for_each(append_env_pair, &info); |
| env_cstr=info.string.cstrm(String::L_UNSPECIFIED); | |
| } | } |
| if(CreateHiddenConsoleProcess(cmd, env_cstr, &pi, &hInWrite, &hOutRead, &hErrRead)) { | if(DWORD error=CreateHiddenConsoleProcess(cmd, env_cstr, &pi, &hInWrite, &hOutRead, &hErrRead)) { |
| const char *in_cstr=in.cstr(); | char szErrorDesc[MAX_STRING]; |
| const char* param="the file you tried to run"; | |
| size_t error_size=FormatMessage( | |
| FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_ARGUMENT_ARRAY , NULL, error, | |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), | |
| szErrorDesc, sizeof(szErrorDesc), (va_list *)¶m); | |
| if(error_size>3) // ".\r\n" | |
| szErrorDesc[error_size-3]=0; | |
| throw Exception(0, | |
| &file_spec, | |
| "exec failed - %s (%ld). Consider adding shbang line (#!x:\\interpreter\\command line)", | |
| error_size?szErrorDesc:"<unknown>", (long)error); | |
| } else { | |
| const char* in_cstr=in.cstr(); | |
| DWORD written_size; | DWORD written_size; |
| WriteFile(hInWrite, in_cstr, in.size(), &written_size, NULL); | WriteFile(hInWrite, in_cstr, in.length(), &written_size, NULL); |
| // EOF for stupid text reads | // EOF for stupid text reads |
| // normally they should read CONTENT_LENGTH bytes, | // normally they should read CONTENT_LENGTH bytes, |
| // without this char | // without this char |
| WriteFile(hInWrite, "\x1A", 1, &written_size, NULL); | WriteFile(hInWrite, "\x1A", 1, &written_size, NULL); |
| CloseHandle(hInWrite); | CloseHandle(hInWrite); |
| read_pipe(out, hOutRead, file_spec_cstr); | read_pipe(result.out, hOutRead, String::L_AS_IS); |
| CloseHandle(hOutRead); | CloseHandle(hOutRead); |
| read_pipe(err, hErrRead, file_spec_cstr); | read_pipe(result.err, hErrRead, String::L_TAINTED); |
| CloseHandle(hErrRead); | CloseHandle(hErrRead); |
| /* | /* |
| from http://www.apache.org/websrc/cvsweb.cgi/apache-1.3/src/main/util_script.c?rev=1.151&content-type=text/vnd.viewcvs-markup | from http://www.apache.org/websrc/cvsweb.cgi/apache-1.3/src/main/util_script.c?rev=1.151&content-type=text/vnd.viewcvs-markup |
| Line 349 from http://www.apache.org/websrc/cvsweb | Line 376 from http://www.apache.org/websrc/cvsweb |
| */ | */ |
| CloseHandle(pi.hProcess); | CloseHandle(pi.hProcess); |
| CloseHandle(pi.hThread); | CloseHandle(pi.hThread); |
| } else { | |
| DWORD error=GetLastError(); | |
| char szErrorDesc[MAX_STRING]; | |
| FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, | |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), | |
| szErrorDesc, sizeof(szErrorDesc), NULL); | |
| size_t error_size=strlen(szErrorDesc); | |
| if(error_size>3) // ".\r\n" | |
| szErrorDesc[error_size-3]=0; | |
| throw Exception(0, 0, | |
| &file_spec, | |
| "(real command line=\"%s\") exec failed - %s (%ld)", | |
| cmd, | |
| szErrorDesc, (long)error); | |
| } | } |
| #else | #else |
| int pipe_write, pipe_read, pipe_err; | int pipe_write, pipe_read, pipe_err; |
| char *file_spec_cstr=file_spec.cstr(String::UL_FILE_SPEC); | |
| #ifdef NO_FOREIGN_GROUP_FILES | #ifdef PA_SAFE_MODE |
| if(!forced_allow) { | if(!forced_allow) { |
| struct stat finfo; | struct stat finfo; |
| if(stat(file_spec_cstr, &finfo)!=0) | if(stat(file_spec_cstr, &finfo)!=0) |
| throw Exception(0, 0, | throw Exception("file.missing", |
| &file_spec, | file_spec, |
| "stat failed: %s (%d), actual filename '%s'", | "stat failed: %s (%d), actual filename '%s'", |
| strerror(errno), errno, file_spec_cstr); | strerror(errno), errno, file_spec_cstr); |
| if(finfo.st_gid/*foreign?*/!=getegid()) | if(finfo.st_uid/*foreign?*/!=geteuid() |
| throw Exception(0, 0, | && finfo.st_gid/*foreign?*/!=getegid()) |
| &file_spec, | throw Exception("parser.runtime", |
| "parser executing files of foreign group is disabled [recompile parser without --disable-foreign-group-files configure option], actual filename '%s'", | file_spec, |
| "parser is in safe mode: executing files of foreign group and user disabled [recompile parser with --disable-safe-mode configure option], actual filename '%s'", | |
| file_spec_cstr); | file_spec_cstr); |
| } | } |
| #endif | #endif |
| char *argv_cstrs[1+10+1]={file_spec_cstr, 0}; | char * argv_cstrs[1+10+1]={file_spec_cstr, 0}; |
| if(argv) { | const int argv_size=argv.count(); |
| const int argv_size=argv->size(); | const int argv_max=sizeof(argv_cstrs)/sizeof(argv_cstrs[0])-1-1; |
| const int argv_max=sizeof(argv_cstrs)/sizeof(argv_cstrs[0])-1-1; | if(argv_size>argv_max) |
| if(argv_size>argv_max) | throw Exception("parser.runtime", |
| throw Exception(0, 0, | file_spec, |
| &file_spec, | "too many arguments (%d > max %d)", argv_size, argv_max); |
| "too many arguments (%d > max %d)", argv_size, argv_max); | for(int i=0; i<argv_size; i++) |
| for(int i=0; i<argv_size; i++) | argv_cstrs[1+i]=argv[i]->cstr(); |
| argv_cstrs[1+i]=argv->get_string(i)->cstr(); | argv_cstrs[1+argv_size]=0; |
| argv_cstrs[1+argv_size]=0; | |
| } | char **env_cstrs; |
| char **env_cstrs=0; | |
| if(env) { | if(env) { |
| env_cstrs= | env_cstrs=new char *[env->count()+1/*0*/]; |
| (char **)env->pool().malloc(sizeof(char *)*(env->size()+1/*0*/)); | Append_env_pair_info info={&env_cstrs}; |
| char **env_ref=env_cstrs; | env->for_each(append_env_pair, &info); |
| env->for_each(append_env_pair, &env_ref); | *info.env_ref=0; |
| *env_ref=0; | } else |
| } | env_cstrs=0; |
| int pid=execve_piped( | pid_t pid=execve_piped( |
| file_spec_cstr, | file_spec_cstr, |
| argv_cstrs, env_cstrs, | argv_cstrs, env_cstrs, |
| &pipe_write, &pipe_read, &pipe_err); | &pipe_write, &pipe_read, &pipe_err); |
| if(pid) { | if(pid>0) { |
| // in child | // in child |
| const char *in_cstr=in.cstr(); | if(in.length()) {// there is some in data |
| write(pipe_write, in_cstr, in.size()); | const char* in_cstr=in.cstr(); |
| write(pipe_write, in_cstr, in.length()); | |
| } | |
| close(pipe_write); | close(pipe_write); |
| read_pipe(out, pipe_read, file_spec_cstr); | result.out=read_pipe(pipe_read, file_spec_cstr, String::L_AS_IS); |
| close(pipe_read); | close(pipe_read); |
| read_pipe(err, pipe_err, file_spec_cstr); | result.err=read_pipe(pipe_err, file_spec_cstr, String::L_TAINTED); |
| close(pipe_err); | close(pipe_err); |
| return get_exit_status(pid); // negative may mean "-errno[execl()]" | result.status=get_exit_status(pid); // negative may mean "-errno[execl()]" |
| } else | } else |
| throw Exception(0, 0, | throw Exception(0, |
| &file_spec, | file_spec, |
| "pipe error"); | "%s error: %s (%d)", pid<0?"fork":"pipe", strerror(errno), errno); |
| #endif | #endif |
| return 0; | return result; |
| } | } |