Annotation of parser3/src/classes/file.C, revision 1.239
1.17 paf 1: /** @file
2: Parser: @b file parser class.
3:
1.218 moko 4: Copyright (c) 2001-2012 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:
1.239 ! moko 28: volatile const char * IDENT_FILE_C="$Id: file.C,v 1.238 2015/10/08 18:29:15 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:
71: DECLARE_CLASS_VAR(file, new MFile, 0);
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)){
136: asked_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
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:
1.148 misha 194: static void copy_process_source(
1.180 misha 195: struct stat& ,
196: int from_file,
197: const String& , const char* /*fname*/, bool,
198: void *context) {
1.148 misha 199: int& to_file=*static_cast<int *>(context);
200:
201: int nCount=0;
202: do {
203: unsigned char buffer[FILE_BUFFER_SIZE];
1.150 misha 204: nCount = file_block_read(from_file, buffer, sizeof(buffer));
1.148 misha 205: int written=write(to_file, buffer, nCount);
206: if( written < 0 )
1.179 misha 207: throw Exception("file.access",
1.148 misha 208: 0,
209: "write failed: %s (%d)", strerror(errno), errno);
210:
211: } while(nCount > 0);
212: }
213:
214: static void copy_open_target(int f, void *from_spec) {
215: String& file_spec=*static_cast<String *>(from_spec);
216: file_read_action_under_lock(file_spec, "copy", copy_process_source, &f);
1.235 moko 217: }
1.148 misha 218:
219: static void _copy(Request& r, MethodParams& params) {
220: Value& vfrom_file_name=params.as_no_junction(0, "from file name must not be code");
221: Value& vto_file_name=params.as_no_junction(1, "to file name must not be code");
222:
223: String from_spec = r.absolute(vfrom_file_name.as_string());
224: const String& to_spec = r.absolute(vto_file_name.as_string());
225:
226: file_write_action_under_lock(
227: to_spec,
228: "copy",
229: copy_open_target,
1.149 misha 230: &from_spec);
1.148 misha 231: }
232:
1.111 paf 233: static void _load_pass_param(
1.180 misha 234: HashStringValue::key_type key,
235: HashStringValue::value_type value,
236: HashStringValue *dest) {
1.111 paf 237: dest->put(key, value);
238: }
1.180 misha 239:
1.111 paf 240: static void _load(Request& r, MethodParams& params) {
1.215 misha 241: bool as_text=VFile::is_text_mode(params.as_string(0, MODE_MUST_NOT_BE_CODE));
242: const String& lfile_name=r.absolute(params.as_string(1, FILE_NAME_MUST_NOT_BE_CODE));
1.9 paf 243:
1.180 misha 244: size_t param_index=params.count()-1;
1.215 misha 245: Value* param_value=param_index>1?¶ms.as_no_junction(param_index, "file name or options must not be code"):0;
1.180 misha 246:
1.183 misha 247: HashStringValue* options=0;
1.215 misha 248: const String* user_file_name=0;
1.183 misha 249:
250: if(param_value){
251: options=param_value->get_hash();
252: if(options || param_index>2)
253: param_index--;
254: if(param_index>1){
255: const String& luser_file_name=params.as_string(param_index, FILE_NAME_MUST_BE_STRING);
256: if(!luser_file_name.is_empty())
1.215 misha 257: user_file_name=&luser_file_name;
1.183 misha 258: }
259: }
260: if(!user_file_name)
1.215 misha 261: user_file_name=&lfile_name;
1.180 misha 262:
1.132 paf 263: size_t offset=0;
264: size_t limit=0;
1.183 misha 265:
1.180 misha 266: if(options){
1.132 paf 267: options=new HashStringValue(*options);
1.180 misha 268: if(Value *voffset=(Value *)options->get(sql_offset_name)){
1.132 paf 269: offset=r.process_to_value(*voffset).as_int();
270: }
1.180 misha 271: if(Value *vlimit=(Value *)options->get(sql_limit_name)){
1.132 paf 272: limit=r.process_to_value(*vlimit).as_int();
273: }
274: // no check on options count here, see file_read
275: }
1.182 misha 276: File_read_result file=file_load(r, lfile_name,
1.180 misha 277: as_text, options, true, 0, offset, limit
1.104 paf 278: );
1.9 paf 279:
1.111 paf 280: Value* vcontent_type=0;
1.168 misha 281: if(file.headers){
1.181 misha 282: if(Value* remote_content_type=file.headers->get(HTTP_CONTENT_TYPE_UPPER))
1.129 paf 283: vcontent_type=new VString(*new String(remote_content_type->as_string().cstr()));
284: }
1.221 misha 285:
1.111 paf 286: VFile& self=GET_SELF(r, VFile);
1.221 misha 287: self.set(true/*tainted*/, as_text, file.str, file.length, user_file_name, vcontent_type, &r);
1.194 misha 288:
1.168 misha 289: if(file.headers){
1.143 paf 290: file.headers->for_each<HashStringValue*>(_load_pass_param, &self.fields());
1.168 misha 291: } else {
292: size_t size;
293: time_t atime, mtime, ctime;
294:
1.169 misha 295: file_stat(lfile_name, size, atime, mtime, ctime);
1.168 misha 296:
297: HashStringValue& ff=self.fields();
1.237 moko 298: ff.put(adate_name, new VDate((pa_time_t)atime));
299: ff.put(mdate_name, new VDate((pa_time_t)mtime));
300: ff.put(cdate_name, new VDate((pa_time_t)ctime));
1.168 misha 301: }
1.9 paf 302: }
303:
1.138 paf 304: static void _create(Request& r, MethodParams& params) {
1.215 misha 305: const String* mode=0;
306: const String* file_name=0;
307: bool is_text=true;
308:
309: // new format: ^file::create[string-or-file-content[;$.mode[text|binary] $.name[...] $.content-type[...] $.charset[...] ]]
310: size_t content_index=0;
311: size_t options_index=1;
312: bool extended_options=true;
313:
314: if(params.count()>=3){
315: // old format: ^file::create[text|binary;file-name;string-or-file-content[;options]]
316: mode=¶ms.as_string(0, MODE_MUST_NOT_BE_CODE);
317: is_text=VFile::is_text_mode(*mode);
318: file_name=¶ms.as_string(1, FILE_NAME_MUST_NOT_BE_CODE);
319: content_index=2;
320: options_index=3;
321: extended_options=false;
322: }
1.203 misha 323:
1.211 misha 324: VString* vcontent_type=0;
1.215 misha 325: Charset* asked_charset=0;
326: if(params.count()>options_index)
327: if(HashStringValue* options=params.as_hash(options_index)) {
1.203 misha 328: int valid_options=0;
1.215 misha 329: if(extended_options) {
330: if(Value* vmode=options->get(MODE_NAME)) {
331: mode=&vmode->as_string();
332: is_text=VFile::is_text_mode(*mode);
333: valid_options++;
334: }
335: if(Value* vfile_name=options->get(NAME_NAME)) {
336: file_name=&vfile_name->as_string();
337: valid_options++;
338: }
339: }
340: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.203 misha 341: asked_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
342: valid_options++;
343: }
1.211 misha 344: if(Value* value=options->get(CONTENT_TYPE_NAME)) {
345: vcontent_type=new VString(value->as_string());
346: valid_options++;
347: }
1.203 misha 348: if(valid_options != options->count())
1.207 misha 349: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.215 misha 350: }
1.211 misha 351:
1.215 misha 352: Value& vcontent=params.as_no_junction(content_index, "content must be string or file");
1.203 misha 353:
1.138 paf 354: VFile& self=GET_SELF(r, VFile);
1.194 misha 355:
1.215 misha 356: if(const String* content_str=vcontent.get_string()){
1.229 moko 357: String::Body body=content_str->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets); // explode content, honor tainting changes
1.215 misha 358: if(asked_charset && is_text)
359: body=Charset::transcode(body, r.charsets.source(), *asked_charset);
1.222 moko 360: self.set(true/*tainted*/, is_text, body.cstrm(), body.length(), file_name, vcontent_type, &r);
1.215 misha 361: } else {
362: if(asked_charset)
363: throw Exception(PARSER_RUNTIME, 0, "charset option can not be used with file-content");
1.226 moko 364: self.set(*vcontent.as_vfile(String::L_AS_IS), mode != 0, is_text, file_name, vcontent_type, &r);
1.215 misha 365: }
366:
1.138 paf 367: }
368:
1.111 paf 369: static void _stat(Request& r, MethodParams& params) {
1.215 misha 370: const String& lfile_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE);
1.25 paf 371:
1.40 parser 372: size_t size;
373: time_t atime, mtime, ctime;
374: file_stat(r.absolute(lfile_name),
375: size,
376: atime, mtime, ctime);
1.25 paf 377:
1.111 paf 378: VFile& self=GET_SELF(r, VFile);
1.167 misha 379:
1.222 moko 380: self.set_binary(true/*tainted*/, 0/*no bytes*/, size, &lfile_name, 0, &r);
1.111 paf 381: HashStringValue& ff=self.fields();
1.237 moko 382: ff.put(adate_name, new VDate((pa_time_t)atime));
383: ff.put(mdate_name, new VDate((pa_time_t)mtime));
384: ff.put(cdate_name, new VDate((pa_time_t)ctime));
1.25 paf 385: }
386:
1.111 paf 387: static bool is_safe_env_key(const char* key) {
388: for(const char* validator=key; *validator; validator++) {
389: char c=*validator;
1.234 moko 390: if(!( (c>='A' && c<='Z') || (c>='0' && c<='9') || (c=='_' || c=='-') ))
1.111 paf 391: return false;
392: }
1.205 pretende 393: #ifdef PA_SAFE_MODE
1.88 paf 394: if(strncasecmp(key, "HTTP_", 5)==0)
1.83 paf 395: return true;
1.87 paf 396: if(strncasecmp(key, "CGI_", 4)==0)
1.83 paf 397: return true;
398: for(int i=0; suexec_safe_env_lst[i]; i++) {
1.87 paf 399: if(strcasecmp(key, suexec_safe_env_lst[i])==0)
1.83 paf 400: return true;
401: }
402: return false;
1.205 pretende 403: #else
404: return true;
405: #endif
1.83 paf 406: }
1.90 paf 407: #ifndef DOXYGEN
408: struct Append_env_pair_info {
1.141 paf 409: Request_charsets* charsets;
1.111 paf 410: HashStringString* env;
1.100 paf 411: Value* vstdin;
1.90 paf 412: };
413: #endif
1.111 paf 414: static void append_env_pair(
1.180 misha 415: HashStringValue::key_type akey,
416: HashStringValue::value_type avalue,
417: Append_env_pair_info *info) {
1.111 paf 418: if(akey==STDIN_EXEC_PARAM_NAME) {
419: info->vstdin=avalue;
420: } else if(akey==CHARSET_EXEC_PARAM_NAME) {
1.141 paf 421: // ignore, already processed
1.90 paf 422: } else {
1.111 paf 423: if(!is_safe_env_key(akey.cstr()))
1.156 misha 424: throw Exception(PARSER_RUNTIME,
1.111 paf 425: new String(akey, String::L_TAINTED),
1.90 paf 426: "not safe environment variable");
1.196 misha 427: info->env->put(akey, avalue->as_string().cstr_to_string_body_untaint(String::L_AS_IS, 0, info->charsets));
1.90 paf 428: }
1.22 paf 429: }
1.94 paf 430: #ifndef DOXYGEN
431: struct Pass_cgi_header_attribute_info {
1.111 paf 432: Charset* charset;
433: HashStringValue* fields;
434: Value* content_type;
1.94 paf 435: };
436: #endif
1.111 paf 437: static void pass_cgi_header_attribute(
1.180 misha 438: ArrayString::element_type astring,
439: Pass_cgi_header_attribute_info* info) {
1.111 paf 440: size_t colon_pos=astring->pos(':');
1.130 paf 441: if(colon_pos!=STRING_NOT_FOUND) {
1.111 paf 442: const String& key=astring->mid(0, colon_pos).change_case(
443: *info->charset, String::CC_UPPER);
1.130 paf 444: Value* value=new VString(astring->mid(colon_pos+1, astring->length()).trim());
1.111 paf 445: info->fields->put(key, value);
1.181 misha 446: if(key==HTTP_CONTENT_TYPE_UPPER)
1.111 paf 447: info->content_type=value;
1.94 paf 448: }
1.29 paf 449: }
1.155 misha 450:
451: static void append_to_argv(Request& r, ArrayString& argv, const String* str){
1.187 misha 452: if(!str->is_empty())
1.229 moko 453: 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 454: }
455:
1.90 paf 456: /// @todo fix `` in perl - they produced flipping consoles and no output to perl
1.194 misha 457: static void _exec_cgi(Request& r, MethodParams& params, bool cgi) {
1.215 misha 458: bool is_text=true;
1.194 misha 459: size_t param_index=0;
1.215 misha 460: const String& mode=params.as_string(0, FIRST_ARG_MUST_NOT_BE_CODE);
461: if(VFile::is_valid_mode(mode)) {
462: is_text=VFile::is_text_mode(mode);
1.194 misha 463: param_index++;
1.162 misha 464: }
465:
466: if(param_index>=params.count())
1.215 misha 467: throw Exception(PARSER_RUNTIME, 0, FILE_NAME_MUST_BE_SPECIFIED);
1.162 misha 468:
1.215 misha 469: const String& script_name=r.absolute(params.as_string(param_index++, FILE_NAME_MUST_NOT_BE_CODE));
1.23 paf 470:
1.111 paf 471: HashStringString env;
1.239 ! moko 472: #define ECSTR(name, value_cstr) if(value_cstr) env.put(#name, value_cstr);
1.233 moko 473: // passing environment
474: for(SAPI::Env::Iterator i(r.sapi_info); i; i.next() )
1.239 ! moko 475: env.put(i.key(), i.value() );
1.82 paf 476:
1.23 paf 477: // const
1.63 paf 478: ECSTR(GATEWAY_INTERFACE, "CGI/1.1");
1.231 moko 479: ECSTR(PARSER_VERSION, PARSER_VERSION);
1.23 paf 480: // from Request.info
1.111 paf 481: ECSTR(DOCUMENT_ROOT, r.request_info.document_root);
482: ECSTR(PATH_TRANSLATED, r.request_info.path_translated);
483: ECSTR(REQUEST_METHOD, r.request_info.method);
484: ECSTR(QUERY_STRING, r.request_info.query_string);
485: ECSTR(REQUEST_URI, r.request_info.uri);
486: ECSTR(CONTENT_TYPE, r.request_info.content_type);
1.200 misha 487: ECSTR(CONTENT_LENGTH, format(r.request_info.content_length, "%u"));
1.82 paf 488: // SCRIPT_*
1.119 paf 489: env.put(String::Body("SCRIPT_NAME"), script_name);
490: //env.put(String::Body("SCRIPT_FILENAME"), ??&script_name);
1.23 paf 491:
1.90 paf 492: // environment & stdin from param
1.111 paf 493: String *in=new String();
1.109 paf 494: Charset *charset=0; // default script works raw_in 'source' charset = no transcoding needed
1.162 misha 495: if(param_index < params.count()) {
1.220 misha 496: if(HashStringValue* user_env=params.as_hash(param_index++, "env")) {
1.141 paf 497: // $.charset [previewing to handle URI pieces]
498: if(Value* vcharset=user_env->get(CHARSET_EXEC_PARAM_NAME))
499: charset=&charsets.get(vcharset->as_string()
500: .change_case(r.charsets.source(), String::CC_UPPER));
501:
502: // $.others
503: Append_env_pair_info info={&r.charsets, &env, 0};
504: {
1.144 paf 505: // influence tainting
506: // main target -- $.QUERY_STRING -- URLencoding of tainted pieces to String::L_URI lang
1.141 paf 507: Temp_client_charset temp(r.charsets, charset? *charset: r.charsets.source());
1.143 paf 508: user_env->for_each<Append_env_pair_info*>(append_env_pair, &info);
1.141 paf 509: }
1.109 paf 510: // $.stdin
1.103 paf 511: if(info.vstdin) {
1.111 paf 512: if(const String* sstdin=info.vstdin->get_string()) {
1.213 moko 513: // untaint stdin
1.229 moko 514: 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 515: } else
1.199 misha 516: if(VFile* vfile=static_cast<VFile *>(info.vstdin->as("file")))
1.111 paf 517: in->append_know_length((const char* )vfile->value_ptr(), vfile->value_size(), String::L_TAINTED);
1.100 paf 518: else
1.156 misha 519: throw Exception(PARSER_RUNTIME,
1.111 paf 520: 0,
1.100 paf 521: STDIN_EXEC_PARAM_NAME " parameter must be string or file");
1.103 paf 522: }
1.90 paf 523: }
1.21 paf 524: }
525:
1.90 paf 526: // argv from params
1.111 paf 527: ArrayString argv;
1.162 misha 528: if(param_index < params.count()) {
1.180 misha 529: // influence tainting
530: Temp_client_charset temp(r.charsets, charset? *charset: r.charsets.source());
1.154 misha 531:
1.162 misha 532: for(size_t i=param_index; i<params.count(); i++) {
1.161 misha 533: Value& param=params.as_no_junction(i, PARAM_MUST_NOT_BE_CODE);
1.154 misha 534: if(param.is_defined()){
535: if(param.is_string()){
1.155 misha 536: append_to_argv(r, argv, param.get_string());
1.154 misha 537: } else {
1.155 misha 538: Table* table=param.get_table();
539: if(table){
540: for(size_t i=0; i<table->count(); i++) {
541: append_to_argv(r, argv, table->get(i)->get(0));
1.154 misha 542: }
543: } else {
1.156 misha 544: throw Exception(PARSER_RUNTIME,
1.154 misha 545: 0,
1.162 misha 546: "param must be string or table");
1.154 misha 547: }
548: }
1.145 misha 549: }
1.144 paf 550: }
1.21 paf 551: }
1.90 paf 552:
1.109 paf 553: // transcode if necessary
554: if(charset) {
1.111 paf 555: Charset::transcode(env, r.charsets.source(), *charset);
556: Charset::transcode(argv, r.charsets.source(), *charset);
557: in=&Charset::transcode(*in, r.charsets.source(), *charset);
558: }
559: // @todo
560: // ifdef WIN32 do OEM->ANSI transcode on some(.cmd?) programs to
561: // match silent conversion in OS
562:
563: // exec!
1.163 misha 564: PA_exec_result execution=pa_exec(false/*forced_allow*/, script_name, &env, argv, *in);
1.111 paf 565:
1.162 misha 566: File_read_result *file_out=&execution.out;
1.111 paf 567: String *real_err=&execution.err;
1.162 misha 568:
1.165 misha 569: // transcode err if necessary (@todo: need fix line breaks in err as well )
570: if(charset)
571: real_err=&Charset::transcode(*real_err, *charset, r.charsets.source());
572:
1.215 misha 573: if(file_out->length && is_text){
1.162 misha 574: fix_line_breaks(file_out->str, file_out->length);
575: // treat output as string
1.188 misha 576: String *real_out = new String(file_out->str);
1.162 misha 577:
1.165 misha 578: // transcode out if necessary
579: if(charset)
1.162 misha 580: real_out=&Charset::transcode(*real_out, *charset, r.charsets.source());
1.165 misha 581:
1.162 misha 582: // FIXME: unsafe cast
1.163 misha 583: file_out->str=const_cast<char *>(real_out->cstr()); // hacking a little
1.162 misha 584: file_out->length = real_out->length();
1.109 paf 585: }
586:
1.111 paf 587: VFile& self=GET_SELF(r, VFile);
1.109 paf 588:
1.162 misha 589: if(cgi) { // ^file::cgi
1.163 misha 590: const char* eol_marker=0;
591: size_t eol_marker_size;
592:
1.111 paf 593: // construct with 'out' body and header
1.165 misha 594: size_t dos_pos=(file_out->length)?strpos(file_out->str, "\r\n\r\n"):STRING_NOT_FOUND;
595: size_t unix_pos=(file_out->length)?strpos(file_out->str, "\n\n"):STRING_NOT_FOUND;
1.111 paf 596:
597: bool unix_header_break;
598: switch((dos_pos!=STRING_NOT_FOUND?10:00) + (unix_pos!=STRING_NOT_FOUND?01:00)) {
1.166 misha 599: case 10: // dos
600: unix_header_break=false;
601: break;
602: case 01: // unix
603: unix_header_break=true;
604: break;
605: case 11: // dos & unix
606: unix_header_break=unix_pos<dos_pos;
607: break;
608: default: // 00
609: unix_header_break=false; // calm down, compiler
1.179 misha 610: throw Exception("file.execute",
1.166 misha 611: 0,
612: "output does not contain CGI header; "
613: "exit status=%d; stdoutsize=%u; stdout: \"%s\"; stderrsize=%u; stderr: \"%s\"",
614: execution.status,
1.194 misha 615: file_out->length, (file_out->length) ? (file_out->str) : "",
616: real_err->length(), real_err->cstr());
1.166 misha 617: break; //never reached
1.111 paf 618: }
619:
1.165 misha 620: size_t header_break_pos;
1.111 paf 621: if(unix_header_break) {
622: header_break_pos=unix_pos;
1.165 misha 623: eol_marker="\n";
624: eol_marker_size=1;
1.111 paf 625: } else {
626: header_break_pos=dos_pos;
1.165 misha 627: eol_marker="\r\n";
628: eol_marker_size=2;
1.111 paf 629: }
1.21 paf 630:
1.162 misha 631: file_out->str[header_break_pos] = 0;
1.188 misha 632: String *header=new String(file_out->str);
1.162 misha 633: unsigned long headersize = header_break_pos+eol_marker_size*2;
634: file_out->str += headersize;
635: file_out->length -= headersize;
636:
1.164 misha 637: // $body
1.221 misha 638: self.set(false/*not tainted*/, is_text, file_out->str, file_out->length);
1.164 misha 639:
1.162 misha 640: // $fields << header
1.194 misha 641: if(header) {
1.162 misha 642: ArrayString rows;
643: size_t pos_after=0;
644: header->split(rows, pos_after, eol_marker);
645: Pass_cgi_header_attribute_info info={0, 0, 0};
646: info.charset=&r.charsets.source();
647: info.fields=&self.fields();
648: rows.for_each(pass_cgi_header_attribute, &info);
649: if(info.content_type)
650: self.fields().put(content_type_name, info.content_type);
651: }
1.164 misha 652: } else { // ^file::exec
1.166 misha 653: // $body
1.221 misha 654: self.set(false/*not tainted*/, is_text, file_out->str, file_out->length);
1.164 misha 655: }
1.163 misha 656:
1.42 parser 657: // $status
1.111 paf 658: self.fields().put(file_status_name, new VInt(execution.status));
1.21 paf 659:
660: // $stderr
1.187 misha 661: if(!real_err->is_empty())
1.21 paf 662: self.fields().put(
1.119 paf 663: String::Body("stderr"),
1.111 paf 664: new VString(*real_err));
1.21 paf 665: }
1.111 paf 666: static void _exec(Request& r, MethodParams& params) {
667: _exec_cgi(r, params, false);
1.41 parser 668: }
1.111 paf 669: static void _cgi(Request& r, MethodParams& params) {
670: _exec_cgi(r, params, true);
1.41 parser 671: }
672:
1.111 paf 673: static void _list(Request& r, MethodParams& params) {
674: Value& relative_path=params.as_no_junction(0, "path must not be code");
1.47 parser 675:
1.227 moko 676: bool stat=false;
1.191 misha 677: VRegex* vregex=0;
1.184 misha 678: VRegexCleaner vrcleaner;
1.227 moko 679:
1.184 misha 680: if(params.count()>1){
1.227 moko 681: Value& voption=params.as_no_junction(1, "option must not be code");
682: if(voption.is_defined()) {
683: Value* vfilter=0;
684: if(HashStringValue* options=voption.get_hash()) {
685: int valid_options=0;
686: if(Value* vstat=options->get("stat")) {
687: stat=r.process_to_value(*vstat).as_bool();
688: valid_options++;
689: }
690: if(Value* value=options->get("filter")) {
691: vfilter=value;
1.230 moko 692: valid_options++;
1.227 moko 693: }
694: if(valid_options!=options->count())
695: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.191 misha 696: } else {
1.227 moko 697: vfilter=&voption;
698: }
1.234 moko 699: if(vfilter) {
1.227 moko 700: if(Value* value=vfilter->as(VREGEX_TYPE)) {
701: vregex=static_cast<VRegex*>(value);
702: } else if(vfilter->is_string()) {
703: if(!vfilter->get_string()->trim().is_empty()) {
704: vregex=new VRegex(r.charsets.source(), &vfilter->as_string(), 0/*options*/);
1.234 moko 705: vregex->study();
706: vrcleaner.vregex=vregex;
707: }
1.227 moko 708: } else {
709: throw Exception(PARSER_RUNTIME, 0, "filter must be regex or string");
710: }
1.234 moko 711: }
1.184 misha 712: }
1.114 paf 713: }
1.47 parser 714:
1.196 misha 715: const char* absolute_path_cstr=r.absolute(relative_path.as_string()).taint_cstr(String::L_FILE_SPEC);
1.47 parser 716:
1.227 moko 717: Table::Action_options table_options;
718: Table& table=*new Table(file_list_table_template, table_options);
1.47 parser 719:
1.184 misha 720: const int ovector_size=(1/*match*/)*3;
721: int ovector[ovector_size];
722:
1.47 parser 723: LOAD_DIR(absolute_path_cstr,
1.111 paf 724: const char* file_name_cstr=ffblk.ff_name;
725: size_t file_name_size=strlen(file_name_cstr);
1.47 parser 726:
1.184 misha 727: if(!vregex || vregex->exec(ffblk.ff_name, file_name_size, ovector, ovector_size)>=0) {
1.111 paf 728: Table::element_type row(new ArrayString);
1.190 misha 729: *row+=new String(pa_strdup(file_name_cstr, file_name_size), String::L_TAINTED);
1.236 moko 730: *row+=new String(String::Body::Format(ffblk.is_dir(stat) ? 1 : 0), String::L_CLEAN);
1.227 moko 731: if(stat) {
732: *row+=VDouble(ffblk.size()).get_string();
1.232 misha 733: *row+=new String(String::Body::Format((int)ffblk.c_timestamp()), String::L_CLEAN);
734: *row+=new String(String::Body::Format((int)ffblk.m_timestamp()), String::L_CLEAN);
735: *row+=new String(String::Body::Format((int)ffblk.a_timestamp()), String::L_CLEAN);
1.227 moko 736: }
1.111 paf 737: table+=row;
1.47 parser 738: }
739: );
740:
1.60 parser 741: // write out result
1.111 paf 742: r.write_no_lang(*new VTable(&table));
1.47 parser 743: }
1.21 paf 744:
1.69 paf 745: #ifndef DOXYGEN
746: struct Lock_execute_body_info {
1.111 paf 747: Request* r;
748: Value* body_code;
1.69 paf 749: };
750: #endif
1.235 moko 751:
1.111 paf 752: static void lock_execute_body(int , void *ainfo) {
753: Lock_execute_body_info& info=*static_cast<Lock_execute_body_info *>(ainfo);
1.69 paf 754: // execute body
1.78 paf 755: info.r->write_assign_lang(info.r->process(*info.body_code));
1.235 moko 756: }
757:
1.111 paf 758: static void _lock(Request& r, MethodParams& params) {
1.152 misha 759: const String& file_spec=r.absolute(params.as_string(0, FILE_NAME_MUST_BE_STRING));
1.116 paf 760: Lock_execute_body_info info={
761: &r,
1.117 paf 762: ¶ms.as_junction(1, "body must be code")
1.116 paf 763: };
1.69 paf 764:
1.158 misha 765: file_write_action_under_lock(
766: file_spec,
767: "lock",
768: lock_execute_body,
769: &info);
1.69 paf 770: }
771:
1.219 misha 772: static size_t afterlastslash(const String& str) {
773: size_t pos=str.strrpbrk("/\\");
774: return pos!=STRING_NOT_FOUND?pos+1:0;
775: }
776:
777: static size_t afterlastslash(const String& str, size_t right) {
778: size_t pos=str.strrpbrk("/\\", 0, right);
779: return pos!=STRING_NOT_FOUND?pos+1:0;
780: }
781:
1.111 paf 782: static void _find(Request& r, MethodParams& params) {
1.215 misha 783: const String& file_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE);
1.219 misha 784:
1.215 misha 785: Value* not_found_code=(params.count()==2)?¶ms.as_junction(1, "not-found param must be code"):0;
786:
1.111 paf 787: const String* file_spec;
1.90 paf 788: if(file_name.first_char()=='/')
789: file_spec=&file_name;
790: else
1.111 paf 791: file_spec=&r.relative(r.request_info.uri, file_name);
1.90 paf 792:
793: // easy way
1.142 paf 794: if(file_exist(r.absolute(*file_spec))) {
1.96 paf 795: r.write_assign_lang(*file_spec);
1.90 paf 796: return;
797: }
798:
799: // monkey way
1.219 misha 800: size_t last_slash=file_spec->strrpbrk("/\\");
801: const String& dirname=file_spec->mid(0, last_slash!=STRING_NOT_FOUND?last_slash:0);
802: const String& basename=file_spec->mid(last_slash!=STRING_NOT_FOUND?last_slash+1:0, file_spec->length());
803:
804: size_t rpos=dirname.is_empty()?0:dirname.length()-1;
805: while((rpos=dirname.rskipchars("/\\", 0, rpos))!=STRING_NOT_FOUND){
806: size_t slash=dirname.strrpbrk("/\\", 0, rpos);
807: if(slash==STRING_NOT_FOUND)
808: break;
1.111 paf 809: String test_name;
1.219 misha 810: test_name << dirname.mid(0, slash+1);
811: test_name << basename;
1.142 paf 812: if(file_exist(r.absolute(test_name))) {
1.111 paf 813: r.write_assign_lang(test_name);
1.90 paf 814: return;
815: }
1.219 misha 816: rpos=slash;
1.90 paf 817: }
818:
819: // no way, not found
1.215 misha 820: if(not_found_code)
821: r.write_pass_lang(r.process(*not_found_code));
1.90 paf 822: }
823:
1.111 paf 824: static void _dirname(Request& r, MethodParams& params) {
1.152 misha 825: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.219 misha 826: // works as *nix dirname
827:
828: // empty > .
829: // / > /
830: // /a > /
831: // /a/ > /
1.180 misha 832: // /a/some.tar.gz > /a
1.219 misha 833: // /a/b/ > /a
834: // /a///b/ > /a
835: // /a/b/// > /a
836: // file > .
837:
838: if(file_spec.is_empty()) {
839: r.write_assign_lang(String("."));
840: return;
841: }
842:
843: size_t p;
844: size_t slash;
845: if((p=file_spec.rskipchars("/\\"))==STRING_NOT_FOUND)
846: r.write_assign_lang(String("/"));
847: else {
848: if((slash=file_spec.strrpbrk("/\\", 0, p))!=STRING_NOT_FOUND) {
849: if((p=file_spec.rskipchars("/\\", 0, slash))==STRING_NOT_FOUND)
850: p=slash;
851: r.write_assign_lang(file_spec.mid(0, p+1));
852: return;
853: }
1.189 misha 854: r.write_assign_lang(String("."));
1.219 misha 855: }
1.89 paf 856: }
857:
1.111 paf 858: static void _basename(Request& r, MethodParams& params) {
1.152 misha 859: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.219 misha 860: // works as *nix basename
861:
862: // empty > .
863: // / > /
864: // /a > a
865: // /a/ > a
1.180 misha 866: // /a/some.tar.gz > some.tar.gz
1.219 misha 867: // /a/b/ > b
868: // /a///b/ > b
869: // /a/b/// > b
870: // file > file
871:
872: if(file_spec.is_empty()) {
873: r.write_assign_lang(String("."));
874: return;
875: }
876:
877: size_t p=file_spec.rskipchars("/\\");
878: if(p==STRING_NOT_FOUND)
879: r.write_assign_lang(String("/"));
880: else
881: r.write_assign_lang(file_spec.mid(afterlastslash(file_spec, p), p+1));
1.89 paf 882: }
883:
1.111 paf 884: static void _justname(Request& r, MethodParams& params) {
1.152 misha 885: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.180 misha 886: // /a/some.tar.gz > some.tar
1.219 misha 887: // /a/b.c/ > empty
888: // /a/b.c > b
889: size_t pos=afterlastslash(file_spec);
890: size_t dotpos=file_spec.strrpbrk(".", pos);
891: r.write_assign_lang(file_spec.mid(pos, dotpos!=STRING_NOT_FOUND?dotpos:file_spec.length()));
1.89 paf 892: }
1.219 misha 893:
1.111 paf 894: static void _justext(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 > gz
1.219 misha 897: // /a/b.c/ > empty
898: size_t pos=afterlastslash(file_spec);
899: size_t dotpos=file_spec.strrpbrk(".", pos);
900: if(dotpos!=STRING_NOT_FOUND)
901: r.write_assign_lang(file_spec.mid(dotpos+1, file_spec.length()));
1.89 paf 902: }
903:
1.111 paf 904: static void _fullpath(Request& r, MethodParams& params) {
1.152 misha 905: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.111 paf 906: const String* result;
1.102 paf 907: if(file_spec.first_char()=='/')
908: result=&file_spec;
909: else {
910: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
911: const String& full_disk_path=r.absolute(file_spec);
1.111 paf 912: size_t document_root_length=strlen(r.request_info.document_root);
1.106 paf 913:
914: if(document_root_length>0) {
1.111 paf 915: char last_char=r.request_info.document_root[document_root_length-1];
1.106 paf 916: if(last_char == '/' || last_char == '\\')
917: --document_root_length;
918: }
1.111 paf 919: result=&full_disk_path.mid(document_root_length, full_disk_path.length());
1.102 paf 920: }
921: r.write_assign_lang(*result);
922: }
923:
1.121 paf 924: static void _sql_string(Request& r, MethodParams&) {
925: VFile& self=GET_SELF(r, VFile);
926:
927: const char *quoted=r.connection()->quote(self.value_ptr(), self.value_size());
928: r.write_assign_lang(*new String(quoted));
929: }
1.89 paf 930:
1.122 paf 931: #ifndef DOXYGEN
932: class File_sql_event_handlers: public SQL_Driver_query_event_handlers {
933: const String& statement_string; const char* statement_cstr;
934: int got_columns;
935: int got_cells;
936: public:
937: String::C value;
1.131 paf 938: const String* user_file_name;
939: const String* user_content_type;
1.122 paf 940: public:
941: File_sql_event_handlers(
942: const String& astatement_string, const char* astatement_cstr):
943: statement_string(astatement_string), statement_cstr(astatement_cstr),
944: got_columns(0),
945: got_cells(0),
946: user_file_name(0),
947: user_content_type(0) {}
948:
949: bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) {
950: if(got_columns++==3) {
1.156 misha 951: error=SQL_Error(PARSER_RUNTIME, "result must contain not more then 3 columns");
1.122 paf 952: return true;
953: }
954: return false;
955: }
956: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
957: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
958: bool add_row_cell(SQL_Error& error, const char* str, size_t length) {
959: try {
960: switch(got_cells++) {
961: case 0:
962: value=String::C(str, length);
963: break;
964: case 1:
1.131 paf 965: if(!user_file_name) // user not specified?
1.190 misha 966: user_file_name=new String(str, String::L_TAINTED);
1.122 paf 967: break;
968: case 2:
1.131 paf 969: if(!user_content_type) // user not specified?
1.190 misha 970: user_content_type=new String(str, String::L_TAINTED);
1.122 paf 971: break;
972: default:
1.210 misha 973: error=SQL_Error(PARSER_RUNTIME, "result must not contain more then one row, three columns");
1.122 paf 974: return true;
975: }
976: return false;
977: } catch(...) {
978: error=SQL_Error("exception occured in File_sql_event_handlers::add_row_cell");
979: return true;
980: }
981: }
982: };
983: #endif
984: static void _sql(Request& r, MethodParams& params) {
1.131 paf 985: Value& statement=params.as_junction(0, "statement must be code");
1.122 paf 986:
987: Temp_lang temp_lang(r, String::L_SQL);
988: const String& statement_string=r.process_to_string(statement);
1.197 misha 989: const char* statement_cstr=statement_string.untaint_cstr(r.flang, r.connection());
1.195 misha 990:
1.122 paf 991: File_sql_event_handlers handlers(statement_string, statement_cstr);
1.131 paf 992:
1.173 misha 993: ulong limit=SQL_NO_LIMIT;
1.172 misha 994: ulong offset=0;
995:
1.131 paf 996: if(params.count()>1)
1.220 misha 997: if(HashStringValue* options=params.as_hash(1, "sql options")) {
1.131 paf 998: int valid_options=0;
999: if(Value* vfilename=options->get(NAME_NAME)) {
1000: valid_options++;
1001: handlers.user_file_name=&vfilename->as_string();
1002: }
1003: if(Value* vcontent_type=options->get(CONTENT_TYPE_NAME)) {
1004: valid_options++;
1005: handlers.user_content_type=&vcontent_type->as_string();
1006: }
1.173 misha 1007: if(Value* vlimit=options->get(sql_limit_name)) {
1008: valid_options++;
1009: limit=(ulong)r.process_to_value(*vlimit).as_double();
1010: }
1.172 misha 1011: if(Value* voffset=options->get(sql_offset_name)) {
1012: valid_options++;
1013: offset=(ulong)r.process_to_value(*voffset).as_double();
1014: }
1.131 paf 1015: if(valid_options!=options->count())
1.207 misha 1016: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.131 paf 1017: }
1018:
1019:
1.122 paf 1020: r.connection()->query(
1.123 paf 1021: statement_cstr,
1022: 0, 0,
1.173 misha 1023: offset, limit,
1.122 paf 1024: handlers,
1025: statement_string);
1026:
1.238 moko 1027: if(!handlers.value.str)
1028: throw Exception(PARSER_RUNTIME, 0, "produced no result");
1.122 paf 1029:
1.215 misha 1030: VFile& self=GET_SELF(r, VFile);
1.122 paf 1031:
1.222 moko 1032: self.set_binary(true/*tainted*/, handlers.value.str, handlers.value.length, handlers.user_file_name
1.215 misha 1033: , handlers.user_content_type ? new VString(*handlers.user_content_type) : 0
1034: , &r);
1.122 paf 1035: }
1.140 paf 1036:
1.139 paf 1037: static void _base64(Request& r, MethodParams& params) {
1.209 misha 1038: bool dynamic=!(&r.get_self() == file_class);
1039: if(dynamic) {
1.180 misha 1040: VFile& self=GET_SELF(r, VFile);
1041: if(params.count()) {
1.209 misha 1042: // decode:
1043: // ^file::base64[encoded] // backward
1.217 misha 1044: // ^file::base64[mode;user-file-name;encoded[;$.content-type[...] $.strict(true|false)]]
1.209 misha 1045: bool is_text=false;
1.217 misha 1046: bool strict=false;
1.209 misha 1047: VString* vcontent_type=0;
1.215 misha 1048: const String* user_file_name=0;
1.209 misha 1049: size_t param_index=0;
1050:
1051: if(params.count() > 1) {
1052: if(params.count() < 3)
1053: throw Exception(PARSER_RUNTIME,
1054: 0,
1.215 misha 1055: "constructor can not have less then 3 parameters (has %d parameters)",
1.209 misha 1056: params.count()); // actually it accepts 1 parameter (backward)
1057:
1.215 misha 1058: is_text=VFile::is_text_mode(params.as_string(0, MODE_MUST_NOT_BE_CODE));
1059: user_file_name=¶ms.as_string(1, FILE_NAME_MUST_BE_STRING);
1.209 misha 1060:
1061: if(params.count() == 4)
1062: if(HashStringValue* options=params.as_hash(3)) {
1063: int valid_options=0;
1064: if(Value* value=options->get(CONTENT_TYPE_NAME)) {
1065: vcontent_type=new VString(value->as_string());
1066: valid_options++;
1067: }
1.217 misha 1068: if(Value* vstrict=options->get(BASE64_STRICT_OPTION_NAME)) {
1069: strict=r.process_to_value(*vstrict).as_bool();
1070: valid_options++;
1071: }
1.209 misha 1072: if(valid_options!=options->count())
1073: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1074: }
1075:
1076: param_index=2;
1077: }
1078:
1079: const char* encoded=params.as_string(param_index, PARAMETER_MUST_BE_STRING).cstr();
1080:
1.180 misha 1081: char* decoded=0;
1082: size_t length=0;
1.217 misha 1083: pa_base64_decode(encoded, strlen(encoded), decoded, length, strict);
1.209 misha 1084:
1.221 misha 1085: self.set(true/*tainted*/, is_text, decoded, length, user_file_name, vcontent_type, &r);
1.180 misha 1086: } else {
1087: // encode: ^f.base64[]
1088: const char* encoded=pa_base64_encode(self.value_ptr(), self.value_size());
1.190 misha 1089: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed**/));
1.180 misha 1090: }
1.151 misha 1091: } else {
1.180 misha 1092: // encode: ^file:base64[filespec]
1.152 misha 1093: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.151 misha 1094: const char* encoded=pa_base64_encode(r.absolute(file_spec));
1.190 misha 1095: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed*/));
1.151 misha 1096: }
1.139 paf 1097: }
1.140 paf 1098:
1.146 misha 1099: static void _crc32(Request& r, MethodParams& params) {
1100: unsigned long crc32 = 0;
1101: if(&r.get_self() == file_class) {
1102: // ^file:crc32[file-name]
1103: if(params.count()) {
1.152 misha 1104: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.146 misha 1105: crc32=pa_crc32(r.absolute(file_spec));
1106: } else {
1.215 misha 1107: throw Exception(PARSER_RUNTIME, 0, FILE_NAME_MUST_BE_SPECIFIED);
1.146 misha 1108: }
1109: } else {
1110: // ^file.crc32[]
1111: VFile& self=GET_SELF(r, VFile);
1112: crc32=pa_crc32(self.value_ptr(), self.value_size());
1113: }
1114: r.write_no_lang(*new VInt(crc32));
1115: }
1116:
1117:
1.147 misha 1118: static void file_md5_file_action(
1.180 misha 1119: struct stat& finfo,
1120: int f,
1121: const String& , const char* /*fname*/, bool,
1122: void *context)
1.147 misha 1123: {
1124: PA_MD5_CTX& md5context=*static_cast<PA_MD5_CTX *>(context);
1125: if(finfo.st_size) {
1.148 misha 1126: int nCount=0;
1.147 misha 1127: do {
1128: unsigned char buffer[FILE_BUFFER_SIZE];
1.150 misha 1129: nCount = file_block_read(f, buffer, sizeof(buffer));
1.147 misha 1130: if ( nCount ){
1131: pa_MD5Update(&md5context, (const unsigned char*)buffer, nCount);
1132: }
1.148 misha 1133: } while(nCount > 0);
1.147 misha 1134: }
1135: }
1136:
1137: const char* pa_md5(const String& file_spec)
1138: {
1139: PA_MD5_CTX context;
1140: unsigned char digest[16];
1141: pa_MD5Init(&context);
1142: file_read_action_under_lock(file_spec, "md5", file_md5_file_action, &context);
1143: pa_MD5Final(digest, &context);
1144:
1145: return hex_string(digest, sizeof(digest), false);
1146: }
1147:
1148: const char* pa_md5(const char *in, size_t in_size)
1149: {
1150: PA_MD5_CTX context;
1151: unsigned char digest[16];
1152: pa_MD5Init(&context);
1153: pa_MD5Update(&context, (const unsigned char*)in, in_size);
1154: pa_MD5Final(digest, &context);
1155:
1156: return hex_string(digest, sizeof(digest), false);
1157: }
1158:
1159: static void _md5(Request& r, MethodParams& params) {
1160: const char* md5;
1161: if(&r.get_self() == file_class) {
1162: // ^file:md5[file-name]
1163: if(params.count()) {
1.152 misha 1164: const String& file_spec=params.as_string(0, FILE_NAME_MUST_BE_STRING);
1.147 misha 1165: md5=pa_md5(r.absolute(file_spec));
1166: } else {
1.215 misha 1167: throw Exception(PARSER_RUNTIME, 0, FILE_NAME_MUST_BE_SPECIFIED);
1.147 misha 1168: }
1169: } else {
1170: // ^file.md5[]
1171: VFile& self=GET_SELF(r, VFile);
1172: md5=pa_md5(self.value_ptr(), self.value_size());
1173:
1174: }
1175: r.write_no_lang(*new String(md5));
1176: }
1177:
1.32 paf 1178: // constructor
1179:
1.111 paf 1180: MFile::MFile(): Methoded("file") {
1.215 misha 1181: // ^file::create[text|binary;file-name;string-or-file[;options hash]]
1182: // ^file::create[string-or-file[;options hash]]
1183: add_native_method("create", Method::CT_DYNAMIC, _create, 1, 4);
1.138 paf 1184:
1.146 misha 1185: // ^file.save[mode;file-name]
1.201 misha 1186: // ^file.save[mode;file-name;$.charset[...]]
1187: add_native_method("save", Method::CT_DYNAMIC, _save, 2, 3);
1.7 paf 1188:
1.146 misha 1189: // ^file:delete[file-name]
1.225 misha 1190: // ^file:delete[file-name;$.keep-empty-dir(true)$.exception(false)]
1.224 misha 1191: add_native_method("delete", Method::CT_STATIC, _delete, 1, 2);
1.45 parser 1192:
1.146 misha 1193: // ^file:move[from-file-name;to-file-name]
1.224 misha 1194: // ^file:move[from-file-name;to-file-name;$.keep-empty-dir(true)]
1195: add_native_method("move", Method::CT_STATIC, _move, 2, 3);
1.8 paf 1196:
1.146 misha 1197: // ^file::load[mode;disk-name]
1198: // ^file::load[mode;disk-name;user-name]
1.201 misha 1199: // ^file::load[mode;disk-name;user-name;options hash]
1200: // ^file::load[mode;disk-name;options hash]
1.180 misha 1201: add_native_method("load", Method::CT_DYNAMIC, _load, 2, 4);
1.25 paf 1202:
1.146 misha 1203: // ^file::stat[disk-name]
1.32 paf 1204: add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
1.21 paf 1205:
1.162 misha 1206: // ^file::cgi[mode;file-name]
1207: // ^file::cgi[mode;file-name;env hash]
1208: // ^file::cgi[mode;file-name;env hash;1cmd;2line;3ar;4g;5s]
1209: add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 3+50);
1210:
1211: // ^file::exec[mode;file-name]
1212: // ^file::exec[mode;file-name;env hash]
1213: // ^file::exec[mode;file-name;env hash;1cmd;2line;3ar;4g;5s]
1214: add_native_method("exec", Method::CT_DYNAMIC, _exec, 1, 3+50);
1.47 parser 1215:
1216: // ^file:list[path]
1217: // ^file:list[path][regexp]
1.228 moko 1218: // ^file:list[path][$.filter[regexp] $.stat(true)]
1.47 parser 1219: add_native_method("list", Method::CT_STATIC, _list, 1, 2);
1.69 paf 1220:
1221: // ^file:lock[path]{code}
1222: add_native_method("lock", Method::CT_STATIC, _lock, 2, 2);
1.90 paf 1223:
1.146 misha 1224: // ^file:find[file-name]
1225: // ^file:find[file-name]{when-not-found}
1.90 paf 1226: add_native_method("find", Method::CT_STATIC, _find, 1, 2);
1.47 parser 1227:
1.201 misha 1228: // ^file:dirname[/a/some.tar.gz]=/a
1.89 paf 1229: // ^file:dirname[/a/b/]=/a
1230: add_native_method("dirname", Method::CT_STATIC, _dirname, 1, 1);
1.201 misha 1231: // ^file:basename[/a/some.tar.gz]=some.tar.gz
1232: add_native_method("basename", Method::CT_STATIC, _basename, 1, 1);
1233: // ^file:justname[/a/some.tar.gz]=some.tar
1.89 paf 1234: add_native_method("justname", Method::CT_STATIC, _justname, 1, 1);
1.201 misha 1235: // ^file:justext[/a/some.tar.gz]=gz
1.89 paf 1236: add_native_method("justext", Method::CT_STATIC, _justext, 1, 1);
1.201 misha 1237: // /some/page.html: ^file:fullpath[a.gif] => /some/a.gif
1.102 paf 1238: add_native_method("fullpath", Method::CT_STATIC, _fullpath, 1, 1);
1.121 paf 1239:
1.201 misha 1240: // ^file.sql-string[]
1.121 paf 1241: add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0);
1.122 paf 1242:
1.209 misha 1243: // ^file::sql{}
1.201 misha 1244: // ^file::sql{}[options hash]
1.122 paf 1245: add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 2);
1.139 paf 1246:
1.209 misha 1247: // encode:
1248: // ^file.base64[]
1249: // ^file:base64[file-name]
1250: // decode:
1251: // ^file::base64[encoded] // backward
1252: // ^file::base64[mode;user-file-name;encoded]
1253: // ^file::base64[mode;user-file-name;encoded;$.content-type[...]]
1254: add_native_method("base64", Method::CT_ANY, _base64, 0, 4);
1.146 misha 1255:
1256: // ^file.crc32[]
1257: // ^file:crc32[file-name]
1258: add_native_method("crc32", Method::CT_ANY, _crc32, 0, 1);
1.147 misha 1259:
1260: // ^file.md5[]
1261: // ^file:md5[file-name]
1262: add_native_method("md5", Method::CT_ANY, _md5, 0, 1);
1263:
1.148 misha 1264: // ^file:copy[from-file-name;to-file-name]
1265: add_native_method("copy", Method::CT_STATIC, _copy, 2, 2);
1.1 paf 1266: }
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