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Makefile
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extconf.rb
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lsapidef.h
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lsapilib.c
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lsapilib.h
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lsruby.c
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Editing: lsruby.c
#include "ruby.h" #if defined( RUBY_VERSION_CODE ) && RUBY_VERSION_CODE < 180 #include "util.h" #else #include <ruby/util.h> #include <ruby/version.h> #endif #include "lsapilib.h" #include <errno.h> #include <netinet/in.h> #include <netinet/tcp.h> #include <signal.h> #include <sys/socket.h> #include <sys/wait.h> #include <unistd.h> #include <sys/mman.h> #include <fcntl.h> #ifndef RUBY_API_VERSION_CODE #define RUBY_API_VERSION_CODE (RUBY_API_VERSION_MAJOR*10000+RUBY_API_VERSION_MINOR*100+RUBY_API_VERSION_TEENY) #endif /* RUBY_EXTERN VALUE ruby_errinfo; */ RUBY_EXTERN VALUE rb_stdin; RUBY_EXTERN VALUE rb_stdout; #if defined( RUBY_VERSION_CODE ) && RUBY_VERSION_CODE < 180 RUBY_EXTERN VALUE rb_defout; #endif static VALUE orig_stdin; static VALUE orig_stdout; static VALUE orig_stderr; #if defined( RUBY_VERSION_CODE ) && RUBY_VERSION_CODE < 180 static VALUE orig_defout; #endif static VALUE orig_env; static VALUE env_copy; static VALUE lsapi_env; static int MAX_BODYBUF_LENGTH = (10 * 1024 * 1024); #if RUBY_API_VERSION_CODE >= 20700 # if defined rb_tainted_str_new # undef rb_tainted_str_new # endif # define rb_tainted_str_new(p,l) rb_str_new((p),(l)) #endif /* static VALUE lsapi_objrefs; */ typedef struct lsapi_data { LSAPI_Request * req; VALUE env; ssize_t (* fn_write)( LSAPI_Request *, const char * , size_t ); }lsapi_data; static VALUE cLSAPI; static VALUE s_req = Qnil; static lsapi_data * s_req_data; static VALUE s_req_stderr = Qnil; static lsapi_data * s_stderr_data; static pid_t s_pid = 0; typedef struct lsapi_body { char *bodyBuf; //we put small one into memory, otherwise, into a memory mapping file, and we still use the bodyBuf to access this mapping int bodyLen; //expected length got form content-length int bodyCurrentLen; //current length by read() readBodyToReqBuf int curPos; }lsapi_body; static lsapi_body s_body; static char sTempFile[1024] = {0}; /* * static void lsapi_ruby_setenv(const char *name, const char *value) * { * if (!name) return; * * if (value && *value) * ruby_setenv(name, value); * else * ruby_unsetenv(name); } * * */ static void lsapi_mark( lsapi_data * data ) { rb_gc_mark( data->env ); } /* * static void lsapi_free_data( lsapi_data * data ) * { * free( data ); } * * */ static int add_env_rails( const char * pKey, int keyLen, const char * pValue, int valLen, void * arg ) { char * p; int len; /* Fixup some environment variables for rails */ switch( *pKey ) { case 'Q': if ( strcmp( pKey, "QUERY_STRING" ) == 0 ) { if ( !*pValue ) return 1; } break; case 'R': if (( *(pKey+8) == 'U' )&&( strcmp( pKey, "REQUEST_URI" ) == 0 )) { p = strchr( pValue, '?' ); if ( p ) { len = valLen - ( p - pValue ) - 1; /* * valLen = p - pValue; *p++ = 0; */ } else { p = (char *)pValue + valLen; len = 0; } rb_hash_aset( lsapi_env,rb_tainted_str_new("PATH_INFO", 9), rb_tainted_str_new(pValue, p - pValue)); rb_hash_aset( lsapi_env,rb_tainted_str_new("REQUEST_PATH", 12), rb_tainted_str_new(pValue, p - pValue)); if ( *p == '?' ) ++p; rb_hash_aset( lsapi_env,rb_tainted_str_new("QUERY_STRING", 12), rb_tainted_str_new(p, len)); } break; case 'S': if ( strcmp( pKey, "SCRIPT_NAME" ) == 0 ) { pValue = "/"; valLen = 1; } break; case 'P': if ( strcmp( pKey, "PATH_INFO" ) == 0 ) return 1; default: break; } /* lsapi_ruby_setenv(pKey, pValue ); */ rb_hash_aset( lsapi_env,rb_tainted_str_new(pKey, keyLen), rb_tainted_str_new(pValue, valLen)); return 1; } static int add_env_no_fix( const char * pKey, int keyLen, const char * pValue, int valLen, void * arg ) { rb_hash_aset( lsapi_env,rb_tainted_str_new(pKey, keyLen), rb_tainted_str_new(pValue, valLen)); return 1; } typedef int (*fn_add_env)( const char * pKey, int keyLen, const char * pValue, int valLen, void * arg ); fn_add_env s_fn_add_env = add_env_no_fix; static void clear_env() { /* rb_funcall( lsapi_env, rb_intern( "clear" ), 0 ); */ rb_funcall( lsapi_env, rb_intern( "replace" ), 1, env_copy ); } static void setup_cgi_env( lsapi_data * data ) { clear_env(); LSAPI_ForeachHeader_r( data->req, s_fn_add_env, data ); LSAPI_ForeachEnv_r( data->req, s_fn_add_env, data ); } static VALUE lsapi_s_accept( VALUE self ) { int pid; if ( LSAPI_Prefork_Accept_r( &g_req ) == -1 ) return Qnil; else { if (s_body.bodyBuf != NULL) free (s_body.bodyBuf); s_body.bodyBuf = NULL; s_body.bodyLen = -1; s_body.bodyCurrentLen = 0; s_body.curPos = 0; pid = getpid(); if ( pid != s_pid ) { s_pid = pid; rb_funcall( Qnil, rb_intern( "srand" ), 0 ); } setup_cgi_env( s_req_data ); return s_req; } } static VALUE lsapi_s_accept_new_conn(VALUE self) { if (LSAPI_Accept_Before_Fork(&g_req) == -1 ) return Qnil; else return s_req; } static VALUE lsapi_s_postfork_child(VALUE self) { LSAPI_Postfork_Child(&g_req); return s_req; } static VALUE lsapi_s_postfork_parent(VALUE self) { LSAPI_Postfork_Parent(&g_req); return s_req; } /* * static int chdir_file( const char * pFile ) * { * char * p = strrchr( pFile, '/' ); * int ret; * if ( !p ) * return -1; *p = 0; ret = chdir( pFile ); *p = '/'; return ret; } */ static VALUE lsapi_eval_string_wrap(VALUE self, VALUE str) { #if RUBY_API_VERSION_CODE < 20700 if (rb_safe_level() >= 4) { Check_Type(str, T_STRING); } else #endif { SafeStringValue(str); } return rb_eval_string_wrap(StringValuePtr(str), NULL); } static VALUE lsapi_process( VALUE self ) { /* lsapi_data *data; const char * pScriptPath; Data_Get_Struct(self,lsapi_data, data); pScriptPath = LSAPI_GetScriptFileName_r( data->req ); */ /* * if ( chdir_file( pScriptPath ) == -1 ) * { * lsapi_send_error( 404 ); * } * rb_load_file( pScriptPath ); */ return Qnil; } static VALUE lsapi_putc(VALUE self, VALUE c) { char ch = NUM2CHR(c); lsapi_data *data; Data_Get_Struct(self,lsapi_data, data); if ( (*data->fn_write)( data->req, &ch, 1 ) == 1 ) return c; else return INT2NUM( EOF ); } static VALUE lsapi_write( VALUE self, VALUE str ) { lsapi_data *data; int len; Data_Get_Struct(self,lsapi_data, data); /* len = LSAPI_Write_r( data->req, RSTRING_PTR(str), RSTRING_LEN(str) ); */ if (TYPE(str) != T_STRING) str = rb_obj_as_string(str); len = (*data->fn_write)( data->req, RSTRING_PTR(str), RSTRING_LEN(str) ); return INT2NUM( len ); } static VALUE lsapi_print( int argc, VALUE *argv, VALUE out ) { int i; VALUE line; /* if no argument given, print `$_' */ if (argc == 0) { argc = 1; line = rb_lastline_get(); argv = &line; } for (i = 0; i<argc; i++) { if (!NIL_P(rb_output_fs) && i>0) { lsapi_write(out, rb_output_fs); } switch (TYPE(argv[i])) { case T_NIL: lsapi_write(out, rb_str_new2("nil")); break; default: lsapi_write(out, argv[i]); break; } } if (!NIL_P(rb_output_rs)) { lsapi_write(out, rb_output_rs); } return Qnil; } static VALUE lsapi_printf(int argc, VALUE *argv, VALUE out) { lsapi_write(out, rb_f_sprintf(argc, argv)); return Qnil; } static VALUE lsapi_puts _((int, VALUE*, VALUE)); #if RUBY_API_VERSION_CODE >= 10900 static VALUE lsapi_puts_ary(VALUE ary, VALUE out, int recur ) { VALUE tmp; long i; if (recur) { tmp = rb_str_new2("[...]"); rb_io_puts(1, &tmp, out); return Qnil; } for (i=0; i<RARRAY_LEN(ary); i++) { tmp = RARRAY_PTR(ary)[i]; rb_io_puts(1, &tmp, out); } return Qnil; } #else static VALUE lsapi_puts_ary(VALUE ary, VALUE out) { VALUE tmp; int i; for (i=0; i<RARRAY_LEN(ary); i++) { tmp = RARRAY_PTR(ary)[i]; if (rb_inspecting_p(tmp)) { tmp = rb_str_new2("[...]"); } lsapi_puts(1, &tmp, out); } return Qnil; } #endif static VALUE lsapi_puts(int argc, VALUE *argv, VALUE out) { int i; VALUE line; /* if no argument given, print newline. */ if (argc == 0) { lsapi_write(out, rb_default_rs); return Qnil; } for (i=0; i<argc; i++) { switch (TYPE(argv[i])) { case T_NIL: line = rb_str_new2("nil"); break; case T_ARRAY: #if RUBY_API_VERSION_CODE >= 10900 rb_exec_recursive(lsapi_puts_ary, argv[i], out); #else rb_protect_inspect(lsapi_puts_ary, argv[i], out); #endif continue; default: line = argv[i]; break; } line = rb_obj_as_string(line); lsapi_write(out, line); if (*( RSTRING_PTR(line) + RSTRING_LEN(line) - 1 ) != '\n') { lsapi_write(out, rb_default_rs); } } return Qnil; } static VALUE lsapi_addstr(VALUE out, VALUE str) { lsapi_write(out, str); return out; } static VALUE lsapi_flush( VALUE self ) { /* * lsapi_data *data; * Data_Get_Struct(self,lsapi_data, data); */ LSAPI_Flush_r( &g_req ); return Qnil; } static VALUE lsapi_getc( VALUE self ) { int ch; /* * lsapi_data *data; * Data_Get_Struct(self,lsapi_data, data); */ #if RUBY_API_VERSION_CODE < 20700 if (rb_safe_level() >= 4 && !OBJ_TAINTED(self)) { rb_raise(rb_eSecurityError, "Insecure: operation on untainted IO"); } #endif ch = LSAPI_ReqBodyGetChar_r( &g_req ); if ( ch == EOF ) return Qnil; return INT2NUM( ch ); } static inline int isBodyWriteToFile() { return ((s_body.bodyLen >= MAX_BODYBUF_LENGTH)? (1): (0)); } //create a temp file and open it, if failed, fd = -1 static inline int createTempFile() { int fd = -1; char *sfn = strdup(sTempFile); if ((fd = mkstemp(sfn)) == -1) { fprintf(stderr, "%s: %s\n", sfn, strerror(errno)); } else unlink(sfn); free(sfn); return fd; } //return 1 if error occured! //if already created, always OK (0) static int createBodyBuf() { int fd = -1; if (s_body.bodyLen == -1) { s_body.bodyLen = LSAPI_GetReqBodyLen_r(&g_req); //Error if get a zeor length, should not happen if (s_body.bodyLen < 0) { //Wrong bode length will be treated as 0 s_body.bodyLen = 0; } if (s_body.bodyLen > 0) { if (isBodyWriteToFile()) { //create file mapping fd = createTempFile(); if (fd == -1) { return 1; } if (ftruncate(fd, s_body.bodyLen) == 0) { perror("ftruncate() failed. \n"); close(fd); return 1; } s_body.bodyBuf = mmap(NULL, s_body.bodyLen, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (s_body.bodyBuf == MAP_FAILED) { perror("File mapping failed. \n"); close(fd); return 1; } close(fd); //close since needn't it anymore } else { s_body.bodyBuf = (char *)calloc(s_body.bodyLen, sizeof(char)); if (s_body.bodyBuf == NULL) { perror("Memory calloc error"); return 1; } } } } return 0; } static inline int isAllBodyRead() { return (s_body.bodyCurrentLen < s_body.bodyLen)? 0 : 1; } static inline int isEofBodyBuf() { return (s_body.curPos < s_body.bodyLen) ? 0 : 1; } //try to read length as times pagesize (such as 8KB * N) static int readBodyBuf(const int needRead) { const int blockSize = 8192; char *buff = s_body.bodyBuf + s_body.bodyCurrentLen; int nRead; int readMore = (needRead + blockSize -1) / blockSize * blockSize; int remain = LSAPI_GetReqBodyRemain_r( &g_req ); //Only when not enough left, needReadChange will be changed!!! if (remain < readMore) readMore = remain; if ( readMore <= 0 ) return 0; nRead = LSAPI_ReadReqBody_r(&g_req, buff, readMore); if ( nRead > 0 ) s_body.bodyCurrentLen += nRead; return nRead; } static VALUE lsapi_gets( VALUE self ) { VALUE str; const int blkSize = 4096; int n; char *p = NULL; #if RUBY_API_VERSION_CODE < 20700 if (rb_safe_level() >= 4 && !OBJ_TAINTED(self)) { rb_raise(rb_eSecurityError, "Insecure: operation on untainted IO"); } #endif if (createBodyBuf() == 1) { return Qnil; } //comment: while((p = memmem(s_body.bodyBuf + s_body.curPos, s_body.bodyCurrentLen - s_body.curPos, "\n", 1)) == NULL) { if (isAllBodyRead() == 1) break; //read one page and check, then reply readBodyBuf(blkSize); } p = memmem(s_body.bodyBuf + s_body.curPos, s_body.bodyCurrentLen - s_body.curPos, "\n", 1); if (p != NULL) n = p - s_body.bodyBuf - s_body.curPos + 1; else n = s_body.bodyCurrentLen - s_body.curPos; str = rb_str_buf_new( n ); #if RUBY_API_VERSION_CODE < 20700 OBJ_TAINT(str); #endif if (n > 0) { rb_str_buf_cat( str, s_body.bodyBuf + s_body.curPos, n ); s_body.curPos += n; } return str; } static VALUE lsapi_read(int argc, VALUE *argv, VALUE self) { VALUE str; int n; int needRead; int nRead; #if RUBY_API_VERSION_CODE < 20700 if (rb_safe_level() >= 4 && !OBJ_TAINTED(self)) { rb_raise(rb_eSecurityError, "Insecure: operation on untainted IO"); } #endif if (createBodyBuf() == 1) { return Qnil; } //we need to consider these 4 cases: //1, need all data since argc == 0, we may have all data 2, or not //3, need a length of data (argv >= 1), we may have enough data already read, 4, or not if (argc == 0) n = s_body.bodyLen - s_body.curPos; else { n = NUM2INT(argv[0]); //request that length from currentpos if (n < 0) return Qnil; if (n > s_body.bodyLen - s_body.curPos) n = s_body.bodyLen - s_body.curPos; } needRead = s_body.curPos + n - s_body.bodyCurrentLen; if (needRead < 0) needRead = 0; str = rb_str_buf_new( n ); #if RUBY_API_VERSION_CODE < 20700 OBJ_TAINT(str); #endif if (n == 0) return str; //copy already have part first if (n - needRead != 0) { rb_str_buf_cat( str, s_body.bodyBuf + s_body.curPos, n - needRead); s_body.curPos += (n - needRead); } if (needRead > 0) { //try to read needRead, but may be less (changed) when read the end of the data nRead = readBodyBuf(needRead); if (nRead > 0) { n = ((nRead < needRead) ? nRead : needRead); rb_str_buf_cat( str, s_body.bodyBuf + s_body.curPos, n ); s_body.curPos += n; } } return str; } static VALUE lsapi_rewind(VALUE self) { s_body.curPos = 0; return self; } static VALUE lsapi_each(VALUE self) { VALUE str; lsapi_rewind(self); while(isEofBodyBuf() != 1) { str = lsapi_gets(self); rb_yield(str); } return self; } static VALUE lsapi_eof(VALUE self) { return (LSAPI_GetReqBodyRemain_r( &g_req ) <= 0) ? Qtrue : Qfalse; } static VALUE lsapi_binmode(VALUE self) { return self; } static VALUE lsapi_isatty(VALUE self) { return Qfalse; } static VALUE lsapi_sync(VALUE self) { return Qfalse; } static VALUE lsapi_setsync(VALUE self,VALUE sync) { return Qfalse; } static VALUE lsapi_close(VALUE self) { LSAPI_Flush_r( &g_req ); if (isBodyWriteToFile()) { //msync(s_body.bodyBuf, s_body.bodyLen, MS_SYNC); //sleep(5); munmap(s_body.bodyBuf, s_body.bodyLen); } else free(s_body.bodyBuf); s_body.bodyBuf = NULL; s_body.bodyLen = -1; s_body.bodyCurrentLen = 0; s_body.curPos = 0; //Should the temp be deleted here?! return Qnil; } static VALUE lsapi_reopen( int argc, VALUE *argv, VALUE self) { VALUE orig_verbose; if ( self == s_req_stderr ) { /* constant silence hack */ orig_verbose = (VALUE)ruby_verbose; ruby_verbose = Qnil; rb_define_global_const("STDERR", orig_stderr); ruby_verbose = (VALUE)orig_verbose; return rb_funcall2( orig_stderr, rb_intern( "reopen" ), argc, argv ); } return self; } static void readMaxBodyBufLength() { int n; const char *p = getenv( "LSAPI_MAX_BODYBUF_LENGTH" ); if ( p ) { n = atoi( p ); if (n > 0) { if (strstr(p, "M") || strstr(p, "m")) MAX_BODYBUF_LENGTH = n * 1024 * 1024; else if (strstr(p, "K") || strstr(p, "k")) MAX_BODYBUF_LENGTH = n * 1024; else MAX_BODYBUF_LENGTH = n; } } } static void readTempFileTemplate() { const char *p = getenv( "LSAPI_TEMPFILE" ); if (p == NULL || strlen(p) > 1024 - 7) p = "/tmp/lsapi.XXXXXX"; strcpy(sTempFile, p); if (strlen(p) <= 6 || strcmp(p + (strlen(p) - 6), "XXXXXX") != 0) strcat(sTempFile, ".XXXXXX"); } static void initBodyBuf() { s_body.bodyBuf = NULL; s_body.bodyLen = -1; s_body.bodyCurrentLen = 0; s_body.curPos = 0; } void Init_lsapi() { VALUE orig_verbose; char * p; int prefork = 0; LSAPI_Init(); initBodyBuf(); readMaxBodyBufLength(); readTempFileTemplate(); p = getenv("LSAPI_CHILDREN"); if (p && atoi(p) > 1) prefork = 1; #ifdef rb_thread_select LSAPI_Init_Env_Parameters( rb_thread_select ); #else LSAPI_Init_Env_Parameters( select ); #endif s_pid = getpid(); p = getenv( "RACK_ROOT" ); if ( p ) { if ( chdir( p ) == -1 ) perror( "chdir()" ); } if ( p || getenv( "RACK_ENV" ) ) s_fn_add_env = add_env_rails; orig_stdin = rb_stdin; orig_stdout = rb_stdout; orig_stderr = rb_stderr; #if defined( RUBY_VERSION_CODE ) && RUBY_VERSION_CODE < 180 orig_defout = rb_defout; #endif orig_env = rb_const_get( rb_cObject, rb_intern("ENV") ); env_copy = rb_funcall( orig_env, rb_intern( "to_hash" ), 0 ); /* tell the garbage collector it is a global variable, do not recycle it. */ rb_global_variable(&env_copy); rb_hash_aset( env_copy,rb_tainted_str_new("GATEWAY_Irewindable_input.rbNTERFACE", 17), rb_tainted_str_new("CGI/1.2", 7)); rb_define_global_function("eval_string_wrap", lsapi_eval_string_wrap, 1); cLSAPI = rb_define_class("LSAPI", rb_cObject); rb_undef_alloc_func(cLSAPI); rb_define_singleton_method(cLSAPI, "accept", lsapi_s_accept, 0); if (prefork) { rb_define_singleton_method(cLSAPI, "accept_new_connection", lsapi_s_accept_new_conn, 0); rb_define_singleton_method(cLSAPI, "postfork_child", lsapi_s_postfork_child, 0); rb_define_singleton_method(cLSAPI, "postfork_parent", lsapi_s_postfork_parent, 0); } rb_define_method(cLSAPI, "process", lsapi_process, 0 ); /* rb_define_method(cLSAPI, "initialize", lsapi_initialize, 0); */ rb_define_method(cLSAPI, "putc", lsapi_putc, 1); rb_define_method(cLSAPI, "write", lsapi_write, 1); rb_define_method(cLSAPI, "print", lsapi_print, -1); rb_define_method(cLSAPI, "printf", lsapi_printf, -1); rb_define_method(cLSAPI, "puts", lsapi_puts, -1); rb_define_method(cLSAPI, "<<", lsapi_addstr, 1); rb_define_method(cLSAPI, "flush", lsapi_flush, 0); rb_define_method(cLSAPI, "getc", lsapi_getc, 0); /* rb_define_method(cLSAPI, "ungetc", lsapi_ungetc, 1); */ rb_define_method(cLSAPI, "gets", lsapi_gets, 0); //TEST: adding readline function to make irb happy? /*rb_define_method(cLSAPI, "readline", lsapi_gets, 0); */ rb_define_method(cLSAPI, "read", lsapi_read, -1); rb_define_method(cLSAPI, "rewind", lsapi_rewind, 0); rb_define_method(cLSAPI, "each", lsapi_each, 0); rb_define_method(cLSAPI, "eof", lsapi_eof, 0); rb_define_method(cLSAPI, "eof?", lsapi_eof, 0); rb_define_method(cLSAPI, "close", lsapi_close, 0); /* rb_define_method(cLSAPI, "closed?", lsapi_closed, 0); */ rb_define_method(cLSAPI, "binmode", lsapi_binmode, 0); rb_define_method(cLSAPI, "isatty", lsapi_isatty, 0); rb_define_method(cLSAPI, "tty?", lsapi_isatty, 0); rb_define_method(cLSAPI, "sync", lsapi_sync, 0); rb_define_method(cLSAPI, "sync=", lsapi_setsync, 1); rb_define_method(cLSAPI, "reopen", lsapi_reopen, -1 ); s_req = Data_Make_Struct( cLSAPI, lsapi_data, lsapi_mark, free, s_req_data ); s_req_data->req = &g_req; s_req_data->fn_write = LSAPI_Write_r; rb_stdin = rb_stdout = s_req; #if defined( RUBY_VERSION_CODE ) && RUBY_VERSION_CODE < 180 rb_defout = s_req; #endif rb_global_variable(&s_req ); s_req_stderr = Data_Make_Struct( cLSAPI, lsapi_data, lsapi_mark, free, s_stderr_data ); s_stderr_data->req = &g_req; s_stderr_data->fn_write = LSAPI_Write_Stderr_r; rb_stderr = s_req_stderr; rb_global_variable(&s_req_stderr ); /* constant silence hack */ orig_verbose = (VALUE)ruby_verbose; ruby_verbose = Qnil; lsapi_env = rb_hash_new(); clear_env(); /* redefine ENV using a hash table, should be faster than char **environment */ rb_define_global_const("ENV", lsapi_env); rb_define_global_const("STDERR", rb_stderr); ruby_verbose = (VALUE)orig_verbose; return; }
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