Annotation of parser3/src/classes/file.C, revision 1.248
1.17 paf 1: /** @file
2: Parser: @b file parser class.
3:
1.241 moko 4: Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
1.72 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.91 paf 6: */
1.17 paf 7:
1.47 parser 8: #include "pa_config_includes.h"
9:
1.35 paf 10: #include "classes.h"
1.111 paf 11: #include "pa_vmethod_frame.h"
12:
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vfile.h"
1.11 paf 15: #include "pa_table.h"
1.21 paf 16: #include "pa_vint.h"
1.24 paf 17: #include "pa_exec.h"
1.40 parser 18: #include "pa_vdate.h"
1.47 parser 19: #include "pa_dir.h"
20: #include "pa_vtable.h"
1.67 paf 21: #include "pa_charset.h"
1.109 paf 22: #include "pa_charsets.h"
1.121 paf 23: #include "pa_sql_connection.h"
1.147 misha 24: #include "pa_md5.h"
1.184 misha 25: #include "pa_vregex.h"
1.208 misha 26: #include "pa_version.h"
1.1 paf 27:
1.248 ! moko 28: volatile const char * IDENT_FILE_C="$Id: file.C,v 1.247 2016/08/02 14:41:35 moko Exp $";
1.218 moko 29:
1.32 paf 30: // defines
31:
1.90 paf 32: #define STDIN_EXEC_PARAM_NAME "stdin"
1.109 paf 33: #define CHARSET_EXEC_PARAM_NAME "charset"
1.48 parser 34:
1.131 paf 35: #define NAME_NAME "name"
1.224 misha 36: #define KEEP_EMPTY_DIRS_NAME "keep-empty-dirs"
1.225 misha 37: #define SUPPRESS_EXCEPTION_NAME "exception"
1.131 paf 38:
1.132 paf 39: // externs
40:
41: extern String sql_limit_name;
42: extern String sql_offset_name;
43:
1.227 moko 44: // helpers
45:
46: class File_list_table_template_columns: public ArrayString {
47: public:
48: File_list_table_template_columns() {
49: *this+=new String("name");
50: *this+=new String("dir");
51: *this+=new String("size");
52: *this+=new String("cdate");
53: *this+=new String("mdate");
54: *this+=new String("adate");
55: }
56: };
57:
58: Table file_list_table_template(new File_list_table_template_columns);
59:
1.111 paf 60: // class
61:
62: class MFile: public Methoded {
63: public: // VStateless_class
1.199 misha 64: Value* create_new_value(Pool&) { return new VFile(); }
1.111 paf 65: public:
66: MFile();
67: };
68:
69: // global variable
70:
1.242 moko 71: DECLARE_CLASS_VAR(file, new MFile);
1.111 paf 72:
1.83 paf 73: // consts
74:
75: /// from apache-1.3|src|support|suexec.c
1.111 paf 76: static const char* suexec_safe_env_lst[]={
1.83 paf 77: "AUTH_TYPE",
78: "CONTENT_LENGTH",
79: "CONTENT_TYPE",
80: "DATE_GMT",
81: "DATE_LOCAL",
82: "DOCUMENT_NAME",
83: "DOCUMENT_PATH_INFO",
84: "DOCUMENT_ROOT",
85: "DOCUMENT_URI",
86: "FILEPATH_INFO",
87: "GATEWAY_INTERFACE",
88: "LAST_MODIFIED",
89: "PATH_INFO",
90: "PATH_TRANSLATED",
91: "QUERY_STRING",
92: "QUERY_STRING_UNESCAPED",
93: "REMOTE_ADDR",
94: "REMOTE_HOST",
95: "REMOTE_IDENT",
96: "REMOTE_PORT",
97: "REMOTE_USER",
98: "REDIRECT_QUERY_STRING",
99: "REDIRECT_STATUS",
100: "REDIRECT_URL",
101: "REQUEST_METHOD",
102: "REQUEST_URI",
103: "SCRIPT_FILENAME",
104: "SCRIPT_NAME",
105: "SCRIPT_URI",
106: "SCRIPT_URL",
107: "SERVER_ADMIN",
108: "SERVER_NAME",
109: "SERVER_ADDR",
110: "SERVER_PORT",
111: "SERVER_PROTOCOL",
112: "SERVER_SOFTWARE",
113: "UNIQUE_ID",
114: "USER_NAME",
115: "TZ",
116: NULL
117: };
118:
1.111 paf 119: // statics
1.33 paf 120:
1.112 paf 121: static const String::Body adate_name("adate");
122: static const String::Body mdate_name("mdate");
123: static const String::Body cdate_name("cdate");
1.32 paf 124:
1.1 paf 125: // methods
126:
1.111 paf 127: static void _save(Request& r, MethodParams& params) {
1.215 misha 128: bool is_text=VFile::is_text_mode(params.as_string(0, MODE_MUST_NOT_BE_CODE));
1.152 misha 129: Value& vfile_name=params.as_no_junction(1, FILE_NAME_MUST_NOT_BE_CODE);
1.4 paf 130:
1.201 misha 131: Charset* asked_charset=0;
132: if(params.count()>2)
1.214 misha 133: if(HashStringValue* options=params.as_hash(2)){
1.202 misha 134: int valid_options=0;
1.201 misha 135: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
1.244 moko 136: asked_charset=&::charsets.get(vcharset_name->as_string());
1.201 misha 137: valid_options++;
138: }
139: if(valid_options != options->count())
1.207 misha 140: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.201 misha 141: }
142:
1.7 paf 143: // save
1.201 misha 144: GET_SELF(r, VFile).save(r.charsets, r.absolute(vfile_name.as_string()), is_text, asked_charset);
1.7 paf 145: }
146:
1.111 paf 147: static void _delete(Request& r, MethodParams& params) {
1.215 misha 148: const String& file_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE);
1.224 misha 149: bool keep_empty_dirs=false;
1.225 misha 150: bool fail_on_problem=true;
1.224 misha 151:
152: if(params.count()>1)
153: if(HashStringValue* options=params.as_hash(1)){
154: int valid_options=0;
155: if(Value* vkeep_empty_dirs=options->get(KEEP_EMPTY_DIRS_NAME)){
156: keep_empty_dirs=r.process_to_value(*vkeep_empty_dirs).as_bool();
157: valid_options++;
158: }
1.225 misha 159: if(Value* vsuppress_exception=options->get(SUPPRESS_EXCEPTION_NAME)){
160: fail_on_problem=r.process_to_value(*vsuppress_exception).as_bool();
161: valid_options++;
162: }
1.224 misha 163: if(valid_options != options->count())
164: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
165: }
1.7 paf 166:
167: // unlink
1.225 misha 168: file_delete(r.absolute(file_name), fail_on_problem, keep_empty_dirs);
1.1 paf 169: }
170:
1.111 paf 171: static void _move(Request& r, MethodParams& params) {
172: Value& vfrom_file_name=params.as_no_junction(0, "from file name must not be code");
173: Value& vto_file_name=params.as_no_junction(1, "to file name must not be code");
1.224 misha 174: bool keep_empty_dirs=false;
175:
176: if(params.count()>2)
177: if(HashStringValue* options=params.as_hash(2)){
178: int valid_options=0;
179: if(Value* vkeep_empty_dirs=options->get(KEEP_EMPTY_DIRS_NAME)){
180: keep_empty_dirs=r.process_to_value(*vkeep_empty_dirs).as_bool();
181: valid_options++;
182: }
183: if(valid_options != options->count())
184: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
185: }
1.45 parser 186:
1.51 parser 187: // move
1.68 paf 188: file_move(
1.45 parser 189: r.absolute(vfrom_file_name.as_string()),
1.224 misha 190: r.absolute(vto_file_name.as_string()),
191: keep_empty_dirs);
1.45 parser 192: }
193:
1.243 moko 194: static void copy_process_source(struct stat& , int from_file, const String&, void *context) {
1.148 misha 195: int& to_file=*static_cast<int *>(context);
196:
197: int nCount=0;
198: do {
199: unsigned char buffer[FILE_BUFFER_SIZE];
1.150 misha 200: nCount = file_block_read(from_file, buffer, sizeof(buffer));
1.148 misha 201: int written=write(to_file, buffer, nCount);
202: if( written < 0 )
1.179 misha 203: throw Exception("file.access",
1.148 misha 204: 0,
205: "write failed: %s (%d)", strerror(errno), errno);
206:
207: } while(nCount > 0);
208: }
209:
210: static void copy_open_target(int f, void *from_spec) {
211: String& file_spec=*static_cast<String *>(from_spec);
212: file_read_action_under_lock(file_spec, "copy", copy_process_source, &f);
1.235 moko 213: }
1.148 misha 214:
215: static void _copy(Request& r, MethodParams& params) {
216: Value& vfrom_file_name=params.as_no_junction(0, "from file name must not be code");
217: Value& vto_file_name=params.as_no_junction(1, "to file name must not be code");
218:
219: String from_spec = r.absolute(vfrom_file_name.as_string());
220: const String& to_spec = r.absolute(vto_file_name.as_string());
221:
222: file_write_action_under_lock(
223: to_spec,
224: "copy",
225: copy_open_target,
1.149 misha 226: &from_spec);
1.148 misha 227: }
228:
1.111 paf 229: static void _load_pass_param(
1.180 misha 230: HashStringValue::key_type key,
231: HashStringValue::value_type value,
232: HashStringValue *dest) {
1.111 paf 233: dest->put(key, value);
234: }
1.180 misha 235:
1.111 paf 236: static void _load(Request& r, MethodParams& params) {
1.215 misha 237: bool as_text=VFile::is_text_mode(params.as_string(0, MODE_MUST_NOT_BE_CODE));
238: const String& lfile_name=r.absolute(params.as_string(1, FILE_NAME_MUST_NOT_BE_CODE));
1.9 paf 239:
1.180 misha 240: size_t param_index=params.count()-1;
1.215 misha 241: Value* param_value=param_index>1?¶ms.as_no_junction(param_index, "file name or options must not be code"):0;
1.180 misha 242:
1.183 misha 243: HashStringValue* options=0;
1.215 misha 244: const String* user_file_name=0;
1.183 misha 245:
246: if(param_value){
247: options=param_value->get_hash();
248: if(options || param_index>2)
249: param_index--;
250: if(param_index>1){
251: const String& luser_file_name=params.as_string(param_index, FILE_NAME_MUST_BE_STRING);
252: if(!luser_file_name.is_empty())
1.215 misha 253: user_file_name=&luser_file_name;
1.183 misha 254: }
255: }
256: if(!user_file_name)
1.215 misha 257: user_file_name=&lfile_name;
1.180 misha 258:
1.132 paf 259: size_t offset=0;
260: size_t limit=0;
1.183 misha 261:
1.180 misha 262: if(options){
1.132 paf 263: options=new HashStringValue(*options);
1.180 misha 264: if(Value *voffset=(Value *)options->get(sql_offset_name)){
1.132 paf 265: offset=r.process_to_value(*voffset).as_int();
266: }
1.180 misha 267: if(Value *vlimit=(Value *)options->get(sql_limit_name)){
1.132 paf 268: limit=r.process_to_value(*vlimit).as_int();
269: }
270: // no check on options count here, see file_read
271: }
1.182 misha 272: File_read_result file=file_load(r, lfile_name,
1.180 misha 273: as_text, options, true, 0, offset, limit
1.104 paf 274: );
1.9 paf 275:
1.111 paf 276: Value* vcontent_type=0;
1.168 misha 277: if(file.headers){
1.181 misha 278: if(Value* remote_content_type=file.headers->get(HTTP_CONTENT_TYPE_UPPER))
1.129 paf 279: vcontent_type=new VString(*new String(remote_content_type->as_string().cstr()));
280: }
1.221 misha 281:
1.111 paf 282: VFile& self=GET_SELF(r, VFile);
1.221 misha 283: self.set(true/*tainted*/, as_text, file.str, file.length, user_file_name, vcontent_type, &r);
1.194 misha 284:
1.168 misha 285: if(file.headers){
1.143 paf 286: file.headers->for_each<HashStringValue*>(_load_pass_param, &self.fields());
1.168 misha 287: } else {
288: size_t size;
289: time_t atime, mtime, ctime;
290:
1.169 misha 291: file_stat(lfile_name, size, atime, mtime, ctime);
1.168 misha 292:
293: HashStringValue& ff=self.fields();
1.237 moko 294: ff.put(adate_name, new VDate((pa_time_t)atime));
295: ff.put(mdate_name, new VDate((pa_time_t)mtime));
296: ff.put(cdate_name, new VDate((pa_time_t)ctime));
1.168 misha 297: }
1.9 paf 298: }
299:
1.138 paf 300: static void _create(Request& r, MethodParams& params) {
1.215 misha 301: const String* mode=0;
302: const String* file_name=0;
303: bool is_text=true;
304:
305: // new format: ^file::create[string-or-file-content[;$.mode[text|binary] $.name[...] $.content-type[...] $.charset[...] ]]
306: size_t content_index=0;
307: size_t options_index=1;
308: bool extended_options=true;
309:
310: if(params.count()>=3){
311: // old format: ^file::create[text|binary;file-name;string-or-file-content[;options]]
312: mode=¶ms.as_string(0, MODE_MUST_NOT_BE_CODE);
313: is_text=VFile::is_text_mode(*mode);
314: file_name=¶ms.as_string(1, FILE_NAME_MUST_NOT_BE_CODE);
315: content_index=2;
316: options_index=3;
317: extended_options=false;
318: }
1.203 misha 319:
1.211 misha 320: VString* vcontent_type=0;
1.245 moko 321: Charset* to_charset=0;
322: Charset* from_charset=0;
1.215 misha 323: if(params.count()>options_index)
324: if(HashStringValue* options=params.as_hash(options_index)) {
1.203 misha 325: int valid_options=0;
1.215 misha 326: if(extended_options) {
327: if(Value* vmode=options->get(MODE_NAME)) {
328: mode=&vmode->as_string();
329: is_text=VFile::is_text_mode(*mode);
330: valid_options++;
331: }
332: if(Value* vfile_name=options->get(NAME_NAME)) {
333: file_name=&vfile_name->as_string();
334: valid_options++;
335: }
336: }
1.245 moko 337: if(Value* vcharset_name=options->get("to-charset")) {
338: to_charset=&::charsets.get(vcharset_name->as_string());
339: valid_options++;
340: }
341: if(Value* vcharset_name=options->get("from-charset")) {
342: from_charset=&::charsets.get(vcharset_name->as_string());
343: valid_options++;
344: }
1.215 misha 345: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.245 moko 346: if(to_charset)
347: throw Exception(PARSER_RUNTIME, 0, "charset option can not be used with to-charset");
348: to_charset=&::charsets.get(vcharset_name->as_string());
1.203 misha 349: valid_options++;
350: }
1.211 misha 351: if(Value* value=options->get(CONTENT_TYPE_NAME)) {
352: vcontent_type=new VString(value->as_string());
353: valid_options++;
354: }
1.203 misha 355: if(valid_options != options->count())
1.207 misha 356: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.215 misha 357: }
1.211 misha 358:
1.215 misha 359: Value& vcontent=params.as_no_junction(content_index, "content must be string or file");
1.203 misha 360:
1.138 paf 361: VFile& self=GET_SELF(r, VFile);
1.194 misha 362:
1.215 misha 363: if(const String* content_str=vcontent.get_string()){
1.229 moko 364: String::Body body=content_str->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets); // explode content, honor tainting changes
1.222 moko 365: self.set(true/*tainted*/, is_text, body.cstrm(), body.length(), file_name, vcontent_type, &r);
1.215 misha 366: } else {
1.245 moko 367: VFile& fcontent=*vcontent.as_vfile(String::L_AS_IS); // can't be null
1.248 ! moko 368: if(mode){
! 369: self.set(fcontent, &is_text, file_name, vcontent_type, &r);
! 370: if(is_text && !fcontent.is_text_mode())
! 371: from_charset=self.detect_binary_charset(from_charset);
! 372: } else {
! 373: self.set(fcontent, 0, file_name, vcontent_type, &r);
! 374: is_text=fcontent.is_text_mode();
! 375: }
1.215 misha 376: }
377:
1.245 moko 378: if(to_charset || from_charset)
379: if(is_text)
380: self.transcode(from_charset ? *from_charset : r.charsets.source(), to_charset ? *to_charset : r.charsets.source());
381: else
382: throw Exception(PARSER_RUNTIME, 0, "charset options can not be used with binary content");
1.138 paf 383: }
384:
1.111 paf 385: static void _stat(Request& r, MethodParams& params) {
1.215 misha 386: const String& lfile_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE);
1.25 paf 387:
1.40 parser 388: size_t size;
389: time_t atime, mtime, ctime;
1.245 moko 390: file_stat(r.absolute(lfile_name), size, atime, mtime, ctime);
1.25 paf 391:
1.111 paf 392: VFile& self=GET_SELF(r, VFile);
1.167 misha 393:
1.222 moko 394: self.set_binary(true/*tainted*/, 0/*no bytes*/, size, &lfile_name, 0, &r);
1.111 paf 395: HashStringValue& ff=self.fields();
1.237 moko 396: ff.put(adate_name, new VDate((pa_time_t)atime));
397: ff.put(mdate_name, new VDate((pa_time_t)mtime));
398: ff.put(cdate_name, new VDate((pa_time_t)ctime));
1.25 paf 399: }
400:
1.111 paf 401: static bool is_safe_env_key(const char* key) {
402: for(const char* validator=key; *validator; validator++) {
403: char c=*validator;
1.234 moko 404: if(!( (c>='A' && c<='Z') || (c>='0' && c<='9') || (c=='_' || c=='-') ))
1.111 paf 405: return false;
406: }
1.205 pretende 407: #ifdef PA_SAFE_MODE
1.88 paf 408: if(strncasecmp(key, "HTTP_", 5)==0)
1.83 paf 409: return true;
1.87 paf 410: if(strncasecmp(key, "CGI_", 4)==0)
1.83 paf 411: return true;
412: for(int i=0; suexec_safe_env_lst[i]; i++) {
1.87 paf 413: if(strcasecmp(key, suexec_safe_env_lst[i])==0)
1.83 paf 414: return true;
415: }
416: return false;
1.205 pretende 417: #else
418: return true;
419: #endif
1.83 paf 420: }
1.90 paf 421: #ifndef DOXYGEN
422: struct Append_env_pair_info {
1.141 paf 423: Request_charsets* charsets;
1.111 paf 424: HashStringString* env;
1.100 paf 425: Value* vstdin;
1.90 paf 426: };
427: #endif
1.111 paf 428: static void append_env_pair(
1.180 misha 429: HashStringValue::key_type akey,
430: HashStringValue::value_type avalue,
431: Append_env_pair_info *info) {
1.111 paf 432: if(akey==STDIN_EXEC_PARAM_NAME) {
433: info->vstdin=avalue;
434: } else if(akey==CHARSET_EXEC_PARAM_NAME) {
1.141 paf 435: // ignore, already processed
1.90 paf 436: } else {
1.111 paf 437: if(!is_safe_env_key(akey.cstr()))
1.156 misha 438: throw Exception(PARSER_RUNTIME,
1.111 paf 439: new String(akey, String::L_TAINTED),
1.90 paf 440: "not safe environment variable");
1.196 misha 441: info->env->put(akey, avalue->as_string().cstr_to_string_body_untaint(String::L_AS_IS, 0, info->charsets));
1.90 paf 442: }
1.22 paf 443: }
1.94 paf 444: #ifndef DOXYGEN
445: struct Pass_cgi_header_attribute_info {
1.111 paf 446: Charset* charset;
447: HashStringValue* fields;
448: Value* content_type;
1.94 paf 449: };
450: #endif
1.111 paf 451: static void pass_cgi_header_attribute(
1.180 misha 452: ArrayString::element_type astring,
453: Pass_cgi_header_attribute_info* info) {
1.111 paf 454: size_t colon_pos=astring->pos(':');
1.130 paf 455: if(colon_pos!=STRING_NOT_FOUND) {
1.111 paf 456: const String& key=astring->mid(0, colon_pos).change_case(
457: *info->charset, String::CC_UPPER);
1.130 paf 458: Value* value=new VString(astring->mid(colon_pos+1, astring->length()).trim());
1.111 paf 459: info->fields->put(key, value);
1.181 misha 460: if(key==HTTP_CONTENT_TYPE_UPPER)
1.111 paf 461: info->content_type=value;
1.94 paf 462: }
1.29 paf 463: }
1.155 misha 464:
465: static void append_to_argv(Request& r, ArrayString& argv, const String* str){
1.187 misha 466: if(!str->is_empty())
1.229 moko 467: argv+=new String(str->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets), String::L_AS_IS);
1.155 misha 468: }
469:
1.90 paf 470: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.194 misha 471: static void _exec_cgi(Request& r, MethodParams& params, bool cgi) {
1.215 misha 472: bool is_text=true;
1.194 misha 473: size_t param_index=0;
1.215 misha 474: const String& mode=params.as_string(0, FIRST_ARG_MUST_NOT_BE_CODE);
475: if(VFile::is_valid_mode(mode)) {
476: is_text=VFile::is_text_mode(mode);
1.194 misha 477: param_index++;
1.162 misha 478: }
479:
480: if(param_index>=params.count())
1.215 misha 481: throw Exception(PARSER_RUNTIME, 0, FILE_NAME_MUST_BE_SPECIFIED);
1.162 misha 482:
1.215 misha 483: const String& script_name=r.absolute(params.as_string(param_index++, FILE_NAME_MUST_NOT_BE_CODE));
1.23 paf 484:
1.111 paf 485: HashStringString env;
1.239 moko 486: #define ECSTR(name, value_cstr) if(value_cstr) env.put(#name, value_cstr);
1.233 moko 487: // passing environment
488: for(SAPI::Env::Iterator i(r.sapi_info); i; i.next() )
1.239 moko 489: env.put(i.key(), i.value() );
1.82 paf 490:
1.23 paf 491: // const
1.63 paf 492: ECSTR(GATEWAY_INTERFACE, "CGI/1.1");
1.231 moko 493: ECSTR(PARSER_VERSION, PARSER_VERSION);
1.23 paf 494: // from Request.info
1.111 paf 495: ECSTR(DOCUMENT_ROOT, r.request_info.document_root);
496: ECSTR(PATH_TRANSLATED, r.request_info.path_translated);
497: ECSTR(REQUEST_METHOD, r.request_info.method);
498: ECSTR(QUERY_STRING, r.request_info.query_string);
499: ECSTR(REQUEST_URI, r.request_info.uri);
500: ECSTR(CONTENT_TYPE, r.request_info.content_type);
1.200 misha 501: ECSTR(CONTENT_LENGTH, format(r.request_info.content_length, "%u"));
1.82 paf 502: // SCRIPT_*
1.240 moko 503: env.put("SCRIPT_NAME", script_name);
1.23 paf 504:
1.90 paf 505: // environment & stdin from param
1.111 paf 506: String *in=new String();
1.109 paf 507: Charset *charset=0; // default script works raw_in 'source' charset = no transcoding needed
1.162 misha 508: if(param_index < params.count()) {
1.220 misha 509: if(HashStringValue* user_env=params.as_hash(param_index++, "env")) {
1.141 paf 510: // $.charset [previewing to handle URI pieces]
511: if(Value* vcharset=user_env->get(CHARSET_EXEC_PARAM_NAME))
1.244 moko 512: charset=&charsets.get(vcharset->as_string());
1.141 paf 513:
514: // $.others
515: Append_env_pair_info info={&r.charsets, &env, 0};
516: {
1.144 paf 517: // influence tainting
518: // main target -- $.QUERY_STRING -- URLencoding of tainted pieces to String::L_URI lang
1.141 paf 519: Temp_client_charset temp(r.charsets, charset? *charset: r.charsets.source());
1.143 paf 520: user_env->for_each<Append_env_pair_info*>(append_env_pair, &info);
1.141 paf 521: }
1.109 paf 522: // $.stdin
1.103 paf 523: if(info.vstdin) {
1.111 paf 524: if(const String* sstdin=info.vstdin->get_string()) {
1.213 moko 525: // untaint stdin
1.229 moko 526: in = new String(sstdin->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets), String::L_AS_IS);
1.103 paf 527: } else
1.199 misha 528: if(VFile* vfile=static_cast<VFile *>(info.vstdin->as("file")))
1.111 paf 529: in->append_know_length((const char* )vfile->value_ptr(), vfile->value_size(), String::L_TAINTED);
1.100 paf 530: else
1.156 misha 531: throw Exception(PARSER_RUNTIME,
1.111 paf 532: 0,
1.100 paf 533: STDIN_EXEC_PARAM_NAME " parameter must be string or file");
1.103 paf 534: }
1.90 paf 535: }
1.21 paf 536: }
537:
1.90 paf 538: // argv from params
1.111 paf 539: ArrayString argv;
1.162 misha 540: if(param_index < params.count()) {
1.180 misha 541: // influence tainting
542: Temp_client_charset temp(r.charsets, charset? *charset: r.charsets.source());
1.154 misha 543:
1.162 misha 544: for(size_t i=param_index; i<params.count(); i++) {
1.161 misha 545: Value& param=params.as_no_junction(i, PARAM_MUST_NOT_BE_CODE);
1.154 misha 546: if(param.is_defined()){
547: if(param.is_string()){
1.155 misha 548: append_to_argv(r, argv, param.get_string());
1.154 misha 549: } else {
1.155 misha 550: Table* table=param.get_table();
551: if(table){
552: for(size_t i=0; i<table->count(); i++) {
553: append_to_argv(r, argv, table->get(i)->get(0));
1.154 misha 554: }
555: } else {
1.156 misha 556: throw Exception(PARSER_RUNTIME,
1.154 misha 557: 0,
1.162 misha 558: "param must be string or table");
1.154 misha 559: }
560: }
1.145 misha 561: }
1.144 paf 562: }
1.21 paf 563: }
1.90 paf 564:
1.109 paf 565: // transcode if necessary
566: if(charset) {
1.111 paf 567: Charset::transcode(env, r.charsets.source(), *charset);
568: Charset::transcode(argv, r.charsets.source(), *charset);
569: in=&Charset::transcode(*in, r.charsets.source(), *charset);
570: }
571: // @todo
572: // ifdef WIN32 do OEM->ANSI transcode on some(.cmd?) programs to
573: // match silent conversion in OS
574:
575: // exec!
1.163 misha 576: PA_exec_result execution=pa_exec(false/*forced_allow*/, script_name, &env, argv, *in);
1.111 paf 577:
1.162 misha 578: File_read_result *file_out=&execution.out;
1.111 paf 579: String *real_err=&execution.err;
1.162 misha 580:
1.165 misha 581: // transcode err if necessary (@todo: need fix line breaks in err as well )
582: if(charset)
583: real_err=&Charset::transcode(*real_err, *charset, r.charsets.source());
584:
1.215 misha 585: if(file_out->length && is_text){
1.162 misha 586: fix_line_breaks(file_out->str, file_out->length);
587: // treat output as string
1.188 misha 588: String *real_out = new String(file_out->str);
1.162 misha 589:
1.165 misha 590: // transcode out if necessary
591: if(charset)
1.162 misha 592: real_out=&Charset::transcode(*real_out, *charset, r.charsets.source());
1.165 misha 593:
1.162 misha 594: // FIXME: unsafe cast
1.163 misha 595: file_out->str=const_cast<char *>(real_out->cstr()); // hacking a little
1.162 misha 596: file_out->length = real_out->length();
1.109 paf 597: }
598:
1.111 paf 599: VFile& self=GET_SELF(r, VFile);
1.109 paf 600:
1.162 misha 601: if(cgi) { // ^file::cgi
1.163 misha 602: const char* eol_marker=0;
603: size_t eol_marker_size;
604:
1.111 paf 605: // construct with 'out' body and header
1.165 misha 606: size_t dos_pos=(file_out->length)?strpos(file_out->str, "\r\n\r\n"):STRING_NOT_FOUND;
607: size_t unix_pos=(file_out->length)?strpos(file_out->str, "\n\n"):STRING_NOT_FOUND;
1.111 paf 608:
609: bool unix_header_break;
610: switch((dos_pos!=STRING_NOT_FOUND?10:00) + (unix_pos!=STRING_NOT_FOUND?01:00)) {
1.166 misha 611: case 10: // dos
612: unix_header_break=false;
613: break;
614: case 01: // unix
615: unix_header_break=true;
616: break;
617: case 11: // dos & unix
618: unix_header_break=unix_pos<dos_pos;
619: break;
620: default: // 00
621: unix_header_break=false; // calm down, compiler
1.179 misha 622: throw Exception("file.execute",
1.166 misha 623: 0,
624: "output does not contain CGI header; "
625: "exit status=%d; stdoutsize=%u; stdout: \"%s\"; stderrsize=%u; stderr: \"%s\"",
626: execution.status,
1.194 misha 627: file_out->length, (file_out->length) ? (file_out->str) : "",
628: real_err->length(), real_err->cstr());
1.166 misha 629: break; //never reached
1.111 paf 630: }
631:
1.165 misha 632: size_t header_break_pos;
1.111 paf 633: if(unix_header_break) {
634: header_break_pos=unix_pos;
1.165 misha 635: eol_marker="\n";
636: eol_marker_size=1;
1.111 paf 637: } else {
638: header_break_pos=dos_pos;
1.165 misha 639: eol_marker="\r\n";
640: eol_marker_size=2;
1.111 paf 641: }
1.21 paf 642:
1.162 misha 643: file_out->str[header_break_pos] = 0;
1.188 misha 644: String *header=new String(file_out->str);
1.162 misha 645: unsigned long headersize = header_break_pos+eol_marker_size*2;
646: file_out->str += headersize;
647: file_out->length -= headersize;
648:
1.164 misha 649: // $body
1.221 misha 650: self.set(false/*not tainted*/, is_text, file_out->str, file_out->length);
1.164 misha 651:
1.162 misha 652: // $fields << header
1.194 misha 653: if(header) {
1.162 misha 654: ArrayString rows;
655: size_t pos_after=0;
656: header->split(rows, pos_after, eol_marker);
657: Pass_cgi_header_attribute_info info={0, 0, 0};
658: info.charset=&r.charsets.source();
659: info.fields=&self.fields();
660: rows.for_each(pass_cgi_header_attribute, &info);
661: if(info.content_type)
662: self.fields().put(content_type_name, info.content_type);
663: }
1.164 misha 664: } else { // ^file::exec
1.166 misha 665: // $body
1.221 misha 666: self.set(false/*not tainted*/, is_text, file_out->str, file_out->length);
1.164 misha 667: }
1.163 misha 668:
1.42 parser 669: // $status
1.111 paf 670: self.fields().put(file_status_name, new VInt(execution.status));
1.21 paf 671:
672: // $stderr
1.187 misha 673: if(!real_err->is_empty())
1.240 moko 674: self.fields().put("stderr", new VString(*real_err));
1.21 paf 675: }
1.111 paf 676: static void _exec(Request& r, MethodParams& params) {
677: _exec_cgi(r, params, false);
1.41 parser 678: }
1.111 paf 679: static void _cgi(Request& r, MethodParams& params) {
680: _exec_cgi(r, params, true);
1.41 parser 681: }
682:
1.111 paf 683: static void _list(Request& r, MethodParams& params) {
684: Value& relative_path=params.as_no_junction(0, "path must not be code");
1.47 parser 685:
1.227 moko 686: bool stat=false;
1.191 misha 687: VRegex* vregex=0;
1.184 misha 688: VRegexCleaner vrcleaner;
1.227 moko 689:
1.184 misha 690: if(params.count()>1){
1.227 moko 691: Value& voption=params.as_no_junction(1, "option must not be code");
692: if(voption.is_defined()) {
693: Value* vfilter=0;
694: if(HashStringValue* options=voption.get_hash()) {
695: int valid_options=0;
696: if(Value* vstat=options->get("stat")) {
697: stat=r.process_to_value(*vstat).as_bool();
698: valid_options++;
699: }
700: if(Value* value=options->get("filter")) {
701: vfilter=value;
1.230 moko 702: valid_options++;
1.227 moko 703: }
704: if(valid_options!=options->count())
705: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.191 misha 706: } else {
1.227 moko 707: vfilter=&voption;
708: }
1.234 moko 709: if(vfilter) {
1.227 moko 710: if(Value* value=vfilter->as(VREGEX_TYPE)) {
711: vregex=static_cast<VRegex*>(value);
712: } else if(vfilter->is_string()) {
713: if(!vfilter->get_string()->trim().is_empty()) {
714: vregex=new VRegex(r.charsets.source(), &vfilter->as_string(), 0/*options*/);
1.234 moko 715: vregex->study();
716: vrcleaner.vregex=vregex;
717: }
1.227 moko 718: } else {
719: throw Exception(PARSER_RUNTIME, 0, "filter must be regex or string");
720: }
1.234 moko 721: }
1.184 misha 722: }
1.114 paf 723: }
1.47 parser 724:
1.196 misha 725: const char* absolute_path_cstr=r.absolute(relative_path.as_string()).taint_cstr(String::L_FILE_SPEC);
1.47 parser 726:
1.227 moko 727: Table::Action_options table_options;
728: Table& table=*new Table(file_list_table_template, table_options);
1.47 parser 729:
1.184 misha 730: const int ovector_size=(1/*match*/)*3;
731: int ovector[ovector_size];
732:
1.47 parser 733: LOAD_DIR(absolute_path_cstr,
1.111 paf 734: const char* file_name_cstr=ffblk.ff_name;
735: size_t file_name_size=strlen(file_name_cstr);
1.47 parser 736:
1.184 misha 737: if(!vregex || vregex->exec(ffblk.ff_name, file_name_size, ovector, ovector_size)>=0) {
1.111 paf 738: Table::element_type row(new ArrayString);
1.190 misha 739: *row+=new String(pa_strdup(file_name_cstr, file_name_size), String::L_TAINTED);
1.236 moko 740: *row+=new String(String::Body::Format(ffblk.is_dir(stat) ? 1 : 0), String::L_CLEAN);
1.227 moko 741: if(stat) {
742: *row+=VDouble(ffblk.size()).get_string();
1.232 misha 743: *row+=new String(String::Body::Format((int)ffblk.c_timestamp()), String::L_CLEAN);
744: *row+=new String(String::Body::Format((int)ffblk.m_timestamp()), String::L_CLEAN);
745: *row+=new String(String::Body::Format((int)ffblk.a_timestamp()), String::L_CLEAN);
1.227 moko 746: }
1.111 paf 747: table+=row;
1.47 parser 748: }
749: );
750:
1.60 parser 751: // write out result
1.111 paf 752: r.write_no_lang(*new VTable(&table));
1.47 parser 753: }
1.21 paf 754:
1.69 paf 755: #ifndef DOXYGEN
756: struct Lock_execute_body_info {
1.111 paf 757: Request* r;
758: Value* body_code;
1.69 paf 759: };
760: #endif
1.235 moko 761:
1.111 paf 762: static void lock_execute_body(int , void *ainfo) {
763: Lock_execute_body_info& info=*static_cast<Lock_execute_body_info *>(ainfo);
1.69 paf 764: // execute body
1.78 paf 765: info.r->write_assign_lang(info.r->process(*info.body_code));
1.235 moko 766: }
767:
1.111 paf 768: static void _lock(Request& r, MethodParams& params) {
1.152 misha 769: const String& file_spec=r.absolute(params.as_string(0, FILE_NAME_MUST_BE_STRING));
1.116 paf 770: Lock_execute_body_info info={
771: &r,
1.117 paf 772: ¶ms.as_junction(1, "body must be code")
1.116 paf 773: };
1.69 paf 774:
1.158 misha 775: file_write_action_under_lock(
776: file_spec,
777: "lock",
778: lock_execute_body,
779: &info);
1.69 paf 780: }
781:
1.219 misha 782: static size_t afterlastslash(const String& str) {
783: size_t pos=str.strrpbrk("/\\");
784: return pos!=STRING_NOT_FOUND?pos+1:0;
785: }
786:
787: static size_t afterlastslash(const String& str, size_t right) {
788: size_t pos=str.strrpbrk("/\\", 0, right);
789: return pos!=STRING_NOT_FOUND?pos+1:0;
790: }
791:
1.111 paf 792: static void _find(Request& r, MethodParams& params) {
1.215 misha 793: const String& file_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE);
1.219 misha 794:
1.215 misha 795: Value* not_found_code=(params.count()==2)?¶ms.as_junction(1, "not-found param must be code"):0;
796:
1.111 paf 797: const String* file_spec;
1.90 paf 798: if(file_name.first_char()=='/')
799: file_spec=&file_name;
800: else
1.111 paf 801: file_spec=&r.relative(r.request_info.uri, file_name);
1.90 paf 802:
803: // easy way
1.142 paf 804: if(file_exist(r.absolute(*file_spec))) {
1.96 paf 805: r.write_assign_lang(*file_spec);
1.90 paf 806: return;
807: }
808:
809: // monkey way
1.219 misha 810: size_t last_slash=file_spec->strrpbrk("/\\");
811: const String& dirname=file_spec->mid(0, last_slash!=STRING_NOT_FOUND?last_slash:0);
812: const String& basename=file_spec->mid(last_slash!=STRING_NOT_FOUND?last_slash+1:0, file_spec->length());
813:
814: size_t rpos=dirname.is_empty()?0:dirname.length()-1;
815: while((rpos=dirname.rskipchars("/\\", 0, rpos))!=STRING_NOT_FOUND){
816: size_t slash=dirname.strrpbrk("/\\", 0, rpos);
817: if(slash==STRING_NOT_FOUND)
818: break;
1.111 paf 819: String test_name;
1.219 misha 820: test_name << dirname.mid(0, slash+1);
821: test_name << basename;
1.142 paf 822: if(file_exist(r.absolute(test_name))) {
1.111 paf 823: r.write_assign_lang(test_name);
1.90 paf 824: return;
825: }
1.219 misha 826: rpos=slash;
1.90 paf 827: }
828:
829: // no way, not found
1.215 misha 830: if(not_found_code)
831: r.write_pass_lang(r.process(*not_found_code));
1.90 paf 832: }
833:
1.111 paf 834: static void _dirname(Request& r, MethodParams& params) {
1.152 misha 835: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.219 misha 836: // works as *nix dirname
837:
838: // empty > .
839: // / > /
840: // /a > /
841: // /a/ > /
1.180 misha 842: // /a/some.tar.gz > /a
1.219 misha 843: // /a/b/ > /a
844: // /a///b/ > /a
845: // /a/b/// > /a
846: // file > .
847:
848: if(file_spec.is_empty()) {
849: r.write_assign_lang(String("."));
850: return;
851: }
852:
853: size_t p;
854: size_t slash;
855: if((p=file_spec.rskipchars("/\\"))==STRING_NOT_FOUND)
856: r.write_assign_lang(String("/"));
857: else {
858: if((slash=file_spec.strrpbrk("/\\", 0, p))!=STRING_NOT_FOUND) {
859: if((p=file_spec.rskipchars("/\\", 0, slash))==STRING_NOT_FOUND)
860: p=slash;
861: r.write_assign_lang(file_spec.mid(0, p+1));
862: return;
863: }
1.189 misha 864: r.write_assign_lang(String("."));
1.219 misha 865: }
1.89 paf 866: }
867:
1.111 paf 868: static void _basename(Request& r, MethodParams& params) {
1.152 misha 869: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.219 misha 870: // works as *nix basename
871:
872: // empty > .
873: // / > /
874: // /a > a
875: // /a/ > a
1.180 misha 876: // /a/some.tar.gz > some.tar.gz
1.219 misha 877: // /a/b/ > b
878: // /a///b/ > b
879: // /a/b/// > b
880: // file > file
881:
882: if(file_spec.is_empty()) {
883: r.write_assign_lang(String("."));
884: return;
885: }
886:
887: size_t p=file_spec.rskipchars("/\\");
888: if(p==STRING_NOT_FOUND)
889: r.write_assign_lang(String("/"));
890: else
891: r.write_assign_lang(file_spec.mid(afterlastslash(file_spec, p), p+1));
1.89 paf 892: }
893:
1.111 paf 894: static void _justname(Request& r, MethodParams& params) {
1.152 misha 895: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.180 misha 896: // /a/some.tar.gz > some.tar
1.219 misha 897: // /a/b.c/ > empty
898: // /a/b.c > b
899: size_t pos=afterlastslash(file_spec);
900: size_t dotpos=file_spec.strrpbrk(".", pos);
901: r.write_assign_lang(file_spec.mid(pos, dotpos!=STRING_NOT_FOUND?dotpos:file_spec.length()));
1.89 paf 902: }
1.219 misha 903:
1.111 paf 904: static void _justext(Request& r, MethodParams& params) {
1.152 misha 905: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.180 misha 906: // /a/some.tar.gz > gz
1.219 misha 907: // /a/b.c/ > empty
908: size_t pos=afterlastslash(file_spec);
909: size_t dotpos=file_spec.strrpbrk(".", pos);
910: if(dotpos!=STRING_NOT_FOUND)
911: r.write_assign_lang(file_spec.mid(dotpos+1, file_spec.length()));
1.89 paf 912: }
913:
1.111 paf 914: static void _fullpath(Request& r, MethodParams& params) {
1.152 misha 915: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.111 paf 916: const String* result;
1.102 paf 917: if(file_spec.first_char()=='/')
918: result=&file_spec;
919: else {
920: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
921: const String& full_disk_path=r.absolute(file_spec);
1.111 paf 922: size_t document_root_length=strlen(r.request_info.document_root);
1.106 paf 923:
924: if(document_root_length>0) {
1.111 paf 925: char last_char=r.request_info.document_root[document_root_length-1];
1.106 paf 926: if(last_char == '/' || last_char == '\\')
927: --document_root_length;
928: }
1.111 paf 929: result=&full_disk_path.mid(document_root_length, full_disk_path.length());
1.102 paf 930: }
931: r.write_assign_lang(*result);
932: }
933:
1.121 paf 934: static void _sql_string(Request& r, MethodParams&) {
935: VFile& self=GET_SELF(r, VFile);
936:
937: const char *quoted=r.connection()->quote(self.value_ptr(), self.value_size());
938: r.write_assign_lang(*new String(quoted));
939: }
1.89 paf 940:
1.122 paf 941: #ifndef DOXYGEN
942: class File_sql_event_handlers: public SQL_Driver_query_event_handlers {
943: const String& statement_string; const char* statement_cstr;
944: int got_columns;
945: int got_cells;
946: public:
947: String::C value;
1.131 paf 948: const String* user_file_name;
949: const String* user_content_type;
1.122 paf 950: public:
951: File_sql_event_handlers(
952: const String& astatement_string, const char* astatement_cstr):
953: statement_string(astatement_string), statement_cstr(astatement_cstr),
954: got_columns(0),
955: got_cells(0),
956: user_file_name(0),
957: user_content_type(0) {}
958:
959: bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) {
960: if(got_columns++==3) {
1.156 misha 961: error=SQL_Error(PARSER_RUNTIME, "result must contain not more then 3 columns");
1.122 paf 962: return true;
963: }
964: return false;
965: }
966: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
967: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
968: bool add_row_cell(SQL_Error& error, const char* str, size_t length) {
969: try {
970: switch(got_cells++) {
971: case 0:
972: value=String::C(str, length);
973: break;
974: case 1:
1.131 paf 975: if(!user_file_name) // user not specified?
1.190 misha 976: user_file_name=new String(str, String::L_TAINTED);
1.122 paf 977: break;
978: case 2:
1.131 paf 979: if(!user_content_type) // user not specified?
1.190 misha 980: user_content_type=new String(str, String::L_TAINTED);
1.122 paf 981: break;
982: default:
1.210 misha 983: error=SQL_Error(PARSER_RUNTIME, "result must not contain more then one row, three columns");
1.122 paf 984: return true;
985: }
986: return false;
987: } catch(...) {
988: error=SQL_Error("exception occured in File_sql_event_handlers::add_row_cell");
989: return true;
990: }
991: }
992: };
993: #endif
994: static void _sql(Request& r, MethodParams& params) {
1.131 paf 995: Value& statement=params.as_junction(0, "statement must be code");
1.122 paf 996:
997: Temp_lang temp_lang(r, String::L_SQL);
998: const String& statement_string=r.process_to_string(statement);
1.197 misha 999: const char* statement_cstr=statement_string.untaint_cstr(r.flang, r.connection());
1.195 misha 1000:
1.122 paf 1001: File_sql_event_handlers handlers(statement_string, statement_cstr);
1.131 paf 1002:
1.173 misha 1003: ulong limit=SQL_NO_LIMIT;
1.172 misha 1004: ulong offset=0;
1005:
1.131 paf 1006: if(params.count()>1)
1.220 misha 1007: if(HashStringValue* options=params.as_hash(1, "sql options")) {
1.131 paf 1008: int valid_options=0;
1009: if(Value* vfilename=options->get(NAME_NAME)) {
1010: valid_options++;
1011: handlers.user_file_name=&vfilename->as_string();
1012: }
1013: if(Value* vcontent_type=options->get(CONTENT_TYPE_NAME)) {
1014: valid_options++;
1015: handlers.user_content_type=&vcontent_type->as_string();
1016: }
1.173 misha 1017: if(Value* vlimit=options->get(sql_limit_name)) {
1018: valid_options++;
1019: limit=(ulong)r.process_to_value(*vlimit).as_double();
1020: }
1.172 misha 1021: if(Value* voffset=options->get(sql_offset_name)) {
1022: valid_options++;
1023: offset=(ulong)r.process_to_value(*voffset).as_double();
1024: }
1.131 paf 1025: if(valid_options!=options->count())
1.207 misha 1026: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.131 paf 1027: }
1028:
1029:
1.122 paf 1030: r.connection()->query(
1.123 paf 1031: statement_cstr,
1032: 0, 0,
1.173 misha 1033: offset, limit,
1.122 paf 1034: handlers,
1035: statement_string);
1036:
1.238 moko 1037: if(!handlers.value.str)
1038: throw Exception(PARSER_RUNTIME, 0, "produced no result");
1.122 paf 1039:
1.215 misha 1040: VFile& self=GET_SELF(r, VFile);
1.122 paf 1041:
1.222 moko 1042: self.set_binary(true/*tainted*/, handlers.value.str, handlers.value.length, handlers.user_file_name
1.215 misha 1043: , handlers.user_content_type ? new VString(*handlers.user_content_type) : 0
1044: , &r);
1.122 paf 1045: }
1.140 paf 1046:
1.139 paf 1047: static void _base64(Request& r, MethodParams& params) {
1.209 misha 1048: bool dynamic=!(&r.get_self() == file_class);
1049: if(dynamic) {
1.180 misha 1050: VFile& self=GET_SELF(r, VFile);
1051: if(params.count()) {
1.209 misha 1052: // decode:
1053: // ^file::base64[encoded] // backward
1.217 misha 1054: // ^file::base64[mode;user-file-name;encoded[;$.content-type[...] $.strict(true|false)]]
1.209 misha 1055: bool is_text=false;
1.217 misha 1056: bool strict=false;
1.209 misha 1057: VString* vcontent_type=0;
1.215 misha 1058: const String* user_file_name=0;
1.209 misha 1059: size_t param_index=0;
1060:
1061: if(params.count() > 1) {
1062: if(params.count() < 3)
1063: throw Exception(PARSER_RUNTIME,
1064: 0,
1.215 misha 1065: "constructor can not have less then 3 parameters (has %d parameters)",
1.209 misha 1066: params.count()); // actually it accepts 1 parameter (backward)
1067:
1.215 misha 1068: is_text=VFile::is_text_mode(params.as_string(0, MODE_MUST_NOT_BE_CODE));
1069: user_file_name=¶ms.as_string(1, FILE_NAME_MUST_BE_STRING);
1.209 misha 1070:
1071: if(params.count() == 4)
1072: if(HashStringValue* options=params.as_hash(3)) {
1073: int valid_options=0;
1074: if(Value* value=options->get(CONTENT_TYPE_NAME)) {
1075: vcontent_type=new VString(value->as_string());
1076: valid_options++;
1077: }
1.217 misha 1078: if(Value* vstrict=options->get(BASE64_STRICT_OPTION_NAME)) {
1079: strict=r.process_to_value(*vstrict).as_bool();
1080: valid_options++;
1081: }
1.209 misha 1082: if(valid_options!=options->count())
1083: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1084: }
1085:
1086: param_index=2;
1087: }
1088:
1089: const char* encoded=params.as_string(param_index, PARAMETER_MUST_BE_STRING).cstr();
1090:
1.180 misha 1091: char* decoded=0;
1092: size_t length=0;
1.217 misha 1093: pa_base64_decode(encoded, strlen(encoded), decoded, length, strict);
1.209 misha 1094:
1.221 misha 1095: self.set(true/*tainted*/, is_text, decoded, length, user_file_name, vcontent_type, &r);
1.180 misha 1096: } else {
1097: // encode: ^f.base64[]
1098: const char* encoded=pa_base64_encode(self.value_ptr(), self.value_size());
1.190 misha 1099: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed**/));
1.180 misha 1100: }
1.151 misha 1101: } else {
1.180 misha 1102: // encode: ^file:base64[filespec]
1.152 misha 1103: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.151 misha 1104: const char* encoded=pa_base64_encode(r.absolute(file_spec));
1.190 misha 1105: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed*/));
1.151 misha 1106: }
1.139 paf 1107: }
1.140 paf 1108:
1.146 misha 1109: static void _crc32(Request& r, MethodParams& params) {
1110: unsigned long crc32 = 0;
1111: if(&r.get_self() == file_class) {
1112: // ^file:crc32[file-name]
1113: if(params.count()) {
1.152 misha 1114: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.146 misha 1115: crc32=pa_crc32(r.absolute(file_spec));
1116: } else {
1.215 misha 1117: throw Exception(PARSER_RUNTIME, 0, FILE_NAME_MUST_BE_SPECIFIED);
1.146 misha 1118: }
1119: } else {
1120: // ^file.crc32[]
1121: VFile& self=GET_SELF(r, VFile);
1122: crc32=pa_crc32(self.value_ptr(), self.value_size());
1123: }
1124: r.write_no_lang(*new VInt(crc32));
1125: }
1126:
1127:
1.243 moko 1128: static void file_md5_file_action(struct stat& finfo, int f, const String&, void *context)
1.147 misha 1129: {
1130: PA_MD5_CTX& md5context=*static_cast<PA_MD5_CTX *>(context);
1131: if(finfo.st_size) {
1.148 misha 1132: int nCount=0;
1.147 misha 1133: do {
1134: unsigned char buffer[FILE_BUFFER_SIZE];
1.150 misha 1135: nCount = file_block_read(f, buffer, sizeof(buffer));
1.147 misha 1136: if ( nCount ){
1137: pa_MD5Update(&md5context, (const unsigned char*)buffer, nCount);
1138: }
1.148 misha 1139: } while(nCount > 0);
1.147 misha 1140: }
1141: }
1142:
1143: const char* pa_md5(const String& file_spec)
1144: {
1145: PA_MD5_CTX context;
1146: unsigned char digest[16];
1147: pa_MD5Init(&context);
1148: file_read_action_under_lock(file_spec, "md5", file_md5_file_action, &context);
1149: pa_MD5Final(digest, &context);
1150:
1151: return hex_string(digest, sizeof(digest), false);
1152: }
1153:
1154: const char* pa_md5(const char *in, size_t in_size)
1155: {
1156: PA_MD5_CTX context;
1157: unsigned char digest[16];
1158: pa_MD5Init(&context);
1159: pa_MD5Update(&context, (const unsigned char*)in, in_size);
1160: pa_MD5Final(digest, &context);
1161:
1162: return hex_string(digest, sizeof(digest), false);
1163: }
1164:
1165: static void _md5(Request& r, MethodParams& params) {
1166: const char* md5;
1167: if(&r.get_self() == file_class) {
1168: // ^file:md5[file-name]
1169: if(params.count()) {
1.152 misha 1170: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.147 misha 1171: md5=pa_md5(r.absolute(file_spec));
1172: } else {
1.215 misha 1173: throw Exception(PARSER_RUNTIME, 0, FILE_NAME_MUST_BE_SPECIFIED);
1.147 misha 1174: }
1175: } else {
1176: // ^file.md5[]
1177: VFile& self=GET_SELF(r, VFile);
1178: md5=pa_md5(self.value_ptr(), self.value_size());
1179:
1180: }
1181: r.write_no_lang(*new String(md5));
1182: }
1183:
1.32 paf 1184: // constructor
1185:
1.111 paf 1186: MFile::MFile(): Methoded("file") {
1.215 misha 1187: // ^file::create[text|binary;file-name;string-or-file[;options hash]]
1188: // ^file::create[string-or-file[;options hash]]
1189: add_native_method("create", Method::CT_DYNAMIC, _create, 1, 4);
1.138 paf 1190:
1.146 misha 1191: // ^file.save[mode;file-name]
1.201 misha 1192: // ^file.save[mode;file-name;$.charset[...]]
1193: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 3);
1.7 paf 1194:
1.146 misha 1195: // ^file:delete[file-name]
1.225 misha 1196: // ^file:delete[file-name;$.keep-empty-dir(true)$.exception(false)]
1.224 misha 1197: add_native_method("delete", Method::CT_STATIC, _delete, 1, 2);
1.45 parser 1198:
1.146 misha 1199: // ^file:move[from-file-name;to-file-name]
1.224 misha 1200: // ^file:move[from-file-name;to-file-name;$.keep-empty-dir(true)]
1201: add_native_method("move", Method::CT_STATIC, _move, 2, 3);
1.8 paf 1202:
1.146 misha 1203: // ^file::load[mode;disk-name]
1204: // ^file::load[mode;disk-name;user-name]
1.201 misha 1205: // ^file::load[mode;disk-name;user-name;options hash]
1206: // ^file::load[mode;disk-name;options hash]
1.180 misha 1207: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 4);
1.25 paf 1208:
1.146 misha 1209: // ^file::stat[disk-name]
1.32 paf 1210: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 1211:
1.162 misha 1212: // ^file::cgi[mode;file-name]
1213: // ^file::cgi[mode;file-name;env hash]
1214: // ^file::cgi[mode;file-name;env hash;1cmd;2line;3ar;4g;5s]
1215: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 3+50);
1216:
1217: // ^file::exec[mode;file-name]
1218: // ^file::exec[mode;file-name;env hash]
1219: // ^file::exec[mode;file-name;env hash;1cmd;2line;3ar;4g;5s]
1220: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 3+50);
1.47 parser 1221:
1222: // ^file:list[path]
1223: // ^file:list[path][regexp]
1.228 moko 1224: // ^file:list[path][$.filter[regexp] $.stat(true)]
1.47 parser 1225: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
1.69 paf 1226:
1227: // ^file:lock[path]{code}
1228: add_native_method("lock", Method::CT_STATIC, _lock, 2, 2);
1.90 paf 1229:
1.146 misha 1230: // ^file:find[file-name]
1231: // ^file:find[file-name]{when-not-found}
1.90 paf 1232: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.47 parser 1233:
1.201 misha 1234: // ^file:dirname[/a/some.tar.gz]=/a
1.89 paf 1235: // ^file:dirname[/a/b/]=/a
1236: add_native_method("dirname", Method::CT_STATIC, _dirname, 1, 1);
1.201 misha 1237: // ^file:basename[/a/some.tar.gz]=some.tar.gz
1238: add_native_method("basename", Method::CT_STATIC, _basename, 1, 1);
1239: // ^file:justname[/a/some.tar.gz]=some.tar
1.89 paf 1240: add_native_method("justname", Method::CT_STATIC, _justname, 1, 1);
1.201 misha 1241: // ^file:justext[/a/some.tar.gz]=gz
1.89 paf 1242: add_native_method("justext", Method::CT_STATIC, _justext, 1, 1);
1.201 misha 1243: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
1.102 paf 1244: add_native_method("fullpath", Method::CT_STATIC, _fullpath, 1, 1);
1.121 paf 1245:
1.201 misha 1246: // ^file.sql-string[]
1.121 paf 1247: add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0);
1.122 paf 1248:
1.209 misha 1249: // ^file::sql{}
1.201 misha 1250: // ^file::sql{}[options hash]
1.122 paf 1251: add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 2);
1.139 paf 1252:
1.209 misha 1253: // encode:
1254: // ^file.base64[]
1255: // ^file:base64[file-name]
1256: // decode:
1257: // ^file::base64[encoded] // backward
1258: // ^file::base64[mode;user-file-name;encoded]
1259: // ^file::base64[mode;user-file-name;encoded;$.content-type[...]]
1260: add_native_method("base64", Method::CT_ANY, _base64, 0, 4);
1.146 misha 1261:
1262: // ^file.crc32[]
1263: // ^file:crc32[file-name]
1264: add_native_method("crc32", Method::CT_ANY, _crc32, 0, 1);
1.147 misha 1265:
1266: // ^file.md5[]
1267: // ^file:md5[file-name]
1268: add_native_method("md5", Method::CT_ANY, _md5, 0, 1);
1269:
1.148 misha 1270: // ^file:copy[from-file-name;to-file-name]
1271: add_native_method("copy", Method::CT_STATIC, _copy, 2, 2);
1.1 paf 1272: }
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