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| version 1.260, 2003/11/24 12:47:21 | version 1.267, 2004/07/26 14:43:09 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: request class main part. @see compile.C and execute.C. | Parser: request class main part. @see compile.C and execute.C. |
| Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2004 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| Line 32 static const char * const IDENT_REQUEST_ | Line 32 static const char * const IDENT_REQUEST_ |
| #include "pa_vresponse.h" | #include "pa_vresponse.h" |
| #include "pa_vmemory.h" | #include "pa_vmemory.h" |
| #include "pa_vconsole.h" | #include "pa_vconsole.h" |
| #include "pa_vdate.h" | |
| // consts | // consts |
| Line 52 const char* ORIGINS_CONTENT_TYPE="text/p | Line 53 const char* ORIGINS_CONTENT_TYPE="text/p |
| #define EXCEPTION_TYPE_PART_NAME "type" | #define EXCEPTION_TYPE_PART_NAME "type" |
| #define EXCEPTION_SOURCE_PART_NAME "source" | #define EXCEPTION_SOURCE_PART_NAME "source" |
| #define EXCEPTION_COMMENT_PART_NAME "comment" | #define EXCEPTION_COMMENT_PART_NAME "comment" |
| #define RESPONSE_BODY_FILE_NAME "file" | |
| // globals | // globals |
| Line 65 const String exception_type_part_name(EX | Line 67 const String exception_type_part_name(EX |
| const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME); | const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME); |
| const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME); | const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME); |
| const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME); | const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME); |
| const String response_body_file_name(RESPONSE_BODY_FILE_NAME); | |
| // defines for statics | // defines for statics |
| Line 131 Request::Request(SAPI_Info& asapi_info, | Line 134 Request::Request(SAPI_Info& asapi_info, |
| // private mime types | // private mime types |
| mime_types(0) | mime_types(0) |
| { | { |
| pa_register_thread_request(*this); | |
| // file_no=0 => unknown | // file_no=0 => unknown |
| file_list+=String::Body("UNKNOWN"); | file_list+=String::Body("UNKNOWN"); |
| file_list+=String::Body("-body of process-"); // pseudo_file_no__process | file_list+=String::Body("-body of process-"); // pseudo_file_no__process |
| // maybe expire old caches | // maybe expire old caches |
| cache_managers.maybe_expire(); | cache_managers->maybe_expire(); |
| /// directly used | /// directly used |
| // MAIN class, operators | // MAIN class, operators |
| Line 500 body_string=&execute_method(frame, *meth | Line 505 body_string=&execute_method(frame, *meth |
| } | } |
| } | } |
| size_t Request::register_file(String::Body file_spec) { | uint Request::register_file(String::Body file_spec) { |
| file_list+=file_spec; | file_list+=file_spec; |
| return file_list.count()-1; | return file_list.count()-1; |
| } | } |
| Line 558 void Request::use_file(VStateless_class& | Line 563 void Request::use_file(VStateless_class& |
| void Request::use_buf(VStateless_class& aclass, | void Request::use_buf(VStateless_class& aclass, |
| const char* source, const String* main_alias, | const char* source, const String* main_alias, |
| uint file_no) { | uint file_no, |
| int line_no_offset) { | |
| // temporary zero @conf so to maybe-replace it in compiled code | // temporary zero @conf so to maybe-replace it in compiled code |
| Temp_method temp_method_conf(aclass, conf_method_name, 0); | Temp_method temp_method_conf(aclass, conf_method_name, 0); |
| // temporary zero @auto so to maybe-replace it in compiled code | // temporary zero @auto so to maybe-replace it in compiled code |
| Temp_method temp_method_auto(aclass, auto_method_name, 0); | Temp_method temp_method_auto(aclass, auto_method_name, 0); |
| // compile loaded class | // compile loaded class |
| VStateless_class& cclass=compile(&aclass, source, main_alias, file_no); | VStateless_class& cclass=compile(&aclass, source, main_alias, file_no, line_no_offset); |
| // locate and execute possible @conf[] static | // locate and execute possible @conf[] static |
| VString* vfilespec= | VString* vfilespec= |
| Line 609 const String& Request::absolute(const St | Line 615 const String& Request::absolute(const St |
| return relative(request_info.path_translated, relative_name); | return relative(request_info.path_translated, relative_name); |
| } | } |
| #ifndef DOXYGEN | |
| class Add_header_attribute_info | |
| { | |
| public: | |
| Add_header_attribute_info(Request& ar) : r(ar), add_last_modified(true) {} | |
| Request& r; | |
| bool add_last_modified; | |
| }; | |
| #endif | |
| static void add_header_attribute( | static void add_header_attribute( |
| HashStringValue::key_type aattribute, | HashStringValue::key_type aattribute, |
| HashStringValue::value_type ameaning, | HashStringValue::value_type ameaning, |
| Request *r) { | Add_header_attribute_info* info) { |
| if(aattribute==BODY_NAME | if(aattribute==BODY_NAME |
| || aattribute==DOWNLOAD_NAME | || aattribute==DOWNLOAD_NAME |
| || aattribute==CHARSET_NAME) | || aattribute==CHARSET_NAME) |
| return; | return; |
| SAPI::add_header_attribute(r->sapi_info, | const char* a=aattribute.cstr(); |
| aattribute.cstr(), | SAPI::add_header_attribute(info->r.sapi_info, |
| a, | |
| attributed_meaning_to_string(*ameaning, String::L_HTTP_HEADER, false). | attributed_meaning_to_string(*ameaning, String::L_HTTP_HEADER, false). |
| cstr(String::L_UNSPECIFIED)); | cstr(String::L_UNSPECIFIED)); |
| if(strcasecmp(a, "last-modified")==0) | |
| info->add_last_modified = false; | |
| } | |
| /* | |
| if(v = opts->get("mdate")){ | |
| ++valid_options; | |
| if(Value* vdate=v->as(VDATE_TYPE, false)) | |
| date=static_cast<VDate*>(vdate); | |
| else throw Exception("parser.runtime", 0, "mdate must be a date"); | |
| } | |
| if(v = opts->get("disposition")){ | |
| ++valid_options; | |
| if(!v->is("string")) throw Exception("parser.runtime", 0, "disposition must be a string"); | |
| disposition = v->get_string()->cstr(); | |
| if(strcmp(disposition, "inline") && strcmp(disposition, "attachment")) throw Exception("parser.runtime", 0, "disposition can be only 'inline' or 'attachment'"); | |
| } | |
| if(valid_options != opts->count()) | |
| throw Exception("parser.runtime", 0, "invalid option passed"); | |
| } | |
| auto_file f = fopen(c_from_file_name, "rb"); | |
| if(f == 0) | |
| throw Exception("parser.runtime", 0, "Can't open file"); | |
| if(fseek(f, 0, SEEK_END)!=0) | |
| throw Exception("parser.runtime", 0, "Can't seek file"); | |
| size_t file_length = (size_t)ftell(f); | |
| if(file_length == (size_t)-1) | |
| throw Exception("parser.runtime", 0, "can't get file size"); | |
| if(file_length <= offset) | |
| throw Exception("parser.runtime", 0, "offset too big"); | |
| size_t content_length = file_length-offset; | |
| if(limit != (size_t)-1) | |
| content_length = limit<content_length?limit:content_length; | |
| size_t part_length = content_length; | |
| const size_t BUFSIZE = 4096; | |
| unsigned char buf[BUFSIZE]; | |
| const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE"); | |
| if(range){ | |
| Array<Range> ar; | |
| parse_range(new String(range), ar); | |
| size_t count = ar.count(); | |
| if(count == 1){ | |
| Range &rg = ar.get_ref(0); | |
| if(rg.start == (size_t)-1 && rg.end == (size_t)-1){ | |
| SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable"); | |
| return; | |
| } | |
| if(rg.start == (size_t)-1 && rg.end != (size_t)-1){ | |
| rg.start = content_length - rg.end; | |
| rg.end = content_length; | |
| offset += rg.start; | |
| part_length = rg.end-rg.start; | |
| }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){ | |
| rg.end = content_length-1; | |
| offset += rg.start; | |
| part_length -= rg.start; | |
| } | |
| if(part_length == 0){ | |
| SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content"); | |
| return; | |
| } | |
| SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content"); | |
| snprintf((char*)buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length); | |
| SAPI::add_header_attribute(r.sapi_info, "Content-Range", (char*)buf); | |
| }else if(count != 0){ | |
| SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented"); | |
| return; | |
| } | |
| } | |
| fseek(f, offset, SEEK_SET); | |
| snprintf((char*)buf, BUFSIZE, "%u", part_length); | |
| SAPI::add_header_attribute(r.sapi_info, "Content-Length", (char*)buf); | |
| if(info.add_content_disposition && disposition){ | |
| const char *fname = 0; | |
| if(to_file_name){ | |
| fname = to_file_name->as_string().cstr(); | |
| }else{ | |
| const char *fname = c_from_file_name; | |
| const char *p1 = strrchr(fname, '/'); | |
| const char *p2 = strrchr(fname, '\\'); | |
| if(p1 || p2) | |
| fname = max(p1, p2)+1; | |
| } | |
| snprintf((char*)buf, BUFSIZE, "%s; filename=\"%s\"", disposition, fname); | |
| SAPI::add_header_attribute(r.sapi_info, "Content-Disposition", (char*)buf); | |
| } | |
| if(info.add_content_type) | |
| SAPI::add_header_attribute(r.sapi_info, "Content-Type", r.mime_type_of(c_from_file_name).cstr()); | |
| if(info.add_last_modified){ | |
| if(date == 0){ | |
| struct stat st; | |
| if(stat(c_from_file_name, &st)!=0) throw Exception("parser.runtime", 0, "can't get file stat"); | |
| date = new VDate(st.st_mtime); | |
| } | |
| const String &s = attributed_meaning_to_string(*date, String::L_AS_IS, true); | |
| SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr()); | |
| } | |
| r.cookie.output_result(r.sapi_info); | |
| SAPI::send_header(r.sapi_info); | |
| const char* request_method=getenv("REQUEST_METHOD"); | |
| bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; | |
| size_t sent = 0; | |
| if(!header_only){ | |
| size_t to_read = 0; | |
| size_t size = 0; | |
| do{ | |
| to_read = part_length<BUFSIZE?part_length:BUFSIZE; | |
| to_read = fread(buf, 1, to_read, f); | |
| if(to_read == 0) | |
| break; | |
| size = SAPI::send_body(r.sapi_info, buf, to_read); | |
| sent += size; | |
| if(size != to_read) | |
| break; | |
| part_length -= to_read; | |
| }while(part_length); | |
| } | |
| // set flag to bypass other outputs | |
| r.response.fields().put("ignore", new VString(*new String("y"))); | |
| r.write_no_lang(*new VInt(sent)); | |
| } | |
| */ | |
| static void output_sole_piece(Request& r, | |
| bool header_only, | |
| VFile& body_file, | |
| Value* body_file_content_type) { | |
| // transcode text body when "text/*" or simple result | |
| String::C output(body_file.value_ptr(), body_file.value_size()); | |
| if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0) | |
| output=Charset::transcode(output, | |
| r.charsets.source(), | |
| r.charsets.client()); | |
| // prepare header: content-length | |
| char content_length_cstr[MAX_NUMBER]; | |
| snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length); | |
| SAPI::add_header_attribute(r.sapi_info, "content-length", content_length_cstr); | |
| // send header | |
| SAPI::send_header(r.sapi_info); | |
| // send body | |
| if(!header_only) | |
| SAPI::send_body(r.sapi_info, output.str, output.length); | |
| } | |
| #ifndef DOXYGEN | |
| struct Range | |
| { | |
| size_t start; | |
| size_t end; | |
| }; | |
| #endif | |
| static void parse_range(const String* s, Array<Range> &ar) | |
| { | |
| const char *p = s->cstr(); | |
| if(s->starts_with("bytes=")) | |
| p += 6; | |
| Range r; | |
| while(*p){ | |
| r.start = (size_t)-1; | |
| r.end = (size_t)-1; | |
| if(*p >= '0' && *p <= '9'){ | |
| r.start = atol(p); | |
| while(*p>='0' && *p<='9') ++p; | |
| } | |
| if(*p++ != '-') break; | |
| if(*p >= '0' && *p <= '9'){ | |
| r.end = atol(p); | |
| while(*p>='0' && *p<='9') ++p; | |
| } | |
| if(*p == ',') ++p; | |
| ar += r; | |
| } | |
| } | |
| static void output_pieces(Request& r, | |
| bool header_only, | |
| const String& filename, | |
| size_t content_length, | |
| Value& date, | |
| bool add_last_modified) | |
| { | |
| const size_t BUFSIZE = 10*0x400; | |
| char buf[BUFSIZE]; | |
| const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE"); | |
| size_t offset=0; | |
| size_t part_length=content_length; | |
| if(range){ | |
| Array<Range> ar; | |
| parse_range(new String(range), ar); | |
| size_t count = ar.count(); | |
| if(count == 1){ | |
| Range &rg = ar.get_ref(0); | |
| if(rg.start == (size_t)-1 && rg.end == (size_t)-1){ | |
| SAPI::add_header_attribute(r.sapi_info, "status", "416 Requested Range Not Satisfiable"); | |
| return; | |
| } | |
| if(rg.start == (size_t)-1 && rg.end != (size_t)-1){ | |
| rg.start = content_length - rg.end; | |
| rg.end = content_length; | |
| offset += rg.start; | |
| part_length = rg.end-rg.start; | |
| }else if(rg.start != (size_t)-1 && rg.end == (size_t)-1){ | |
| rg.end = content_length-1; | |
| offset += rg.start; | |
| part_length -= rg.start; | |
| } | |
| if(part_length == 0){ | |
| SAPI::add_header_attribute(r.sapi_info, "status", "204 No Content"); | |
| return; | |
| } | |
| SAPI::add_header_attribute(r.sapi_info, "status", "206 Partial Content"); | |
| snprintf(buf, BUFSIZE, "bytes %u-%u/%u", rg.start, rg.end, content_length); | |
| SAPI::add_header_attribute(r.sapi_info, "Content-Range", buf); | |
| }else if(count != 0){ | |
| SAPI::add_header_attribute(r.sapi_info, "status", "501 Not Implemented"); | |
| return; | |
| } | |
| } | |
| snprintf(buf, BUFSIZE, "%u", part_length); | |
| SAPI::add_header_attribute(r.sapi_info, "Content-Length", buf); | |
| if(add_last_modified){ | |
| const String &s = attributed_meaning_to_string(date, String::L_AS_IS, true); | |
| SAPI::add_header_attribute(r.sapi_info, "Last-Modified", s.cstr()); | |
| } | |
| SAPI::send_header(r.sapi_info); | |
| const String& filespec=r.absolute(filename); | |
| size_t sent = 0; | |
| if(!header_only){ | |
| size_t to_read = 0; | |
| size_t size = 0; | |
| do{ | |
| to_read = part_length<BUFSIZE?part_length:BUFSIZE; | |
| File_read_result read_result=file_read(r.charsets, filespec, | |
| false /*as text*/, 0/*params*/, true/*fail on problem*/, | |
| buf, offset, to_read); | |
| to_read=read_result.length; | |
| if(to_read == 0) | |
| break; | |
| offset += to_read; | |
| size = SAPI::send_body(r.sapi_info, read_result.str, to_read); | |
| sent += size; | |
| if(size != to_read) | |
| break; | |
| part_length -= to_read; | |
| }while(part_length); | |
| } | |
| } | } |
| void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) { | void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) { |
| // header: cookies | // header: cookies |
| cookie.output_result(sapi_info); | cookie.output_result(sapi_info); |
| Value* body_file_content_type; | // may be specified |
| // set content-type | Value* body_file_content_type=body_file->fields().get(content_type_name); |
| if((body_file_content_type=body_file->fields().get(content_type_name))) { | |
| // body file content type | |
| response.fields().put(content_type_name, body_file_content_type); | |
| } else { | |
| // default content type | |
| response.fields().put_dont_replace(content_type_name, | |
| new VString(*new String(DEFAULT_CONTENT_TYPE))); | |
| } | |
| // content-disposition | // content-disposition |
| if(Value* vfile_name=body_file->fields().get(name_name)) | Value* vfile_name=body_file->fields().get(name_name); |
| if(*vfile_name->get_string()!=NONAME_DAT) { | if(!vfile_name) { |
| vfile_name=body_file->fields().get(response_body_file_name); | |
| const String& sfile_name=vfile_name->as_string(); | |
| char* name_cstr=sfile_name.cstrm(); | |
| if(char *after_slash=rsplit(name_cstr, '\\')) | |
| name_cstr=after_slash; | |
| if(char *after_slash=rsplit(name_cstr, '/')) | |
| name_cstr=after_slash; | |
| vfile_name=new VString(*new String(name_cstr)); | |
| } | |
| if(vfile_name) { | |
| const String& sfile_name=vfile_name->as_string(); | |
| if(sfile_name!=NONAME_DAT) { | |
| VHash& hash=*new VHash(); | VHash& hash=*new VHash(); |
| HashStringValue &h=hash.hash(); | HashStringValue &h=hash.hash(); |
| if(as_attachment) | if(as_attachment) |
| h.put(value_name, new VString(content_disposition_value)); | h.put(value_name, new VString(content_disposition_value)); |
| h.put(content_disposition_filename_name, vfile_name); | h.put(content_disposition_filename_name, vfile_name); |
| response.fields().put(content_disposition_name, &hash); | response.fields().put(content_disposition_name, &hash); |
| if(!body_file_content_type) | |
| body_file_content_type=new VString(mime_type_of(sfile_name.cstr())); | |
| } | } |
| } | |
| // set content-type | |
| if(body_file_content_type) { | |
| // body file content type | |
| response.fields().put(content_type_name, body_file_content_type); | |
| } else { | |
| // default content type | |
| response.fields().put_dont_replace(content_type_name, | |
| new VString(*new String(DEFAULT_CONTENT_TYPE))); | |
| } | |
| // prepare header: $response:fields without :body | // prepare header: $response:fields without :body |
| response.fields().for_each(add_header_attribute, this); | Add_header_attribute_info info(*this); |
| response.fields().for_each(add_header_attribute, &info); | |
| // transcode text body when "text/*" or simple result | |
| if(body_file_content_type) | if(body_file_content_type) |
| if(HashStringValue *hash=body_file_content_type->get_hash()) | if(HashStringValue *hash=body_file_content_type->get_hash()) |
| body_file_content_type=hash->get(value_name); | body_file_content_type=hash->get(value_name); |
| String::C output(body_file->value_ptr(), body_file->value_size()); | |
| if(!body_file_content_type/*vstring.as_vfile*/ || body_file_content_type->as_string().pos("text/")==0) | |
| output=Charset::transcode(output, | |
| charsets.source(), | |
| charsets.client()); | |
| // prepare header: content-length | if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) { |
| char content_length_cstr[MAX_NUMBER]; | const String& sresponse_body_file=vresponse_body_file->as_string(); |
| snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length); | size_t content_length=0; |
| SAPI::add_header_attribute(sapi_info, "content-length", content_length_cstr); | time_t atime=0, mtime=0, ctime=0; |
| file_stat(absolute(sresponse_body_file), | |
| content_length, | |
| atime, mtime, ctime); | |
| VDate* vdate=0; | |
| if(Value* v=body_file->fields().get("mdate")) { | |
| if(Value* vdatep=v->as(VDATE_TYPE, false)) | |
| vdate=static_cast<VDate*>(vdatep); | |
| else | |
| throw Exception("parser.runtime", 0, "mdate must be a date"); | |
| } | |
| if(!vdate) | |
| vdate=new VDate(mtime); | |
| // send header | output_pieces(*this, header_only, |
| SAPI::send_header(sapi_info); | sresponse_body_file, |
| content_length, | |
| // send body | *vdate, |
| if(!header_only) | info.add_last_modified); |
| SAPI::send_body(sapi_info, output.str, output.length); | } else { |
| output_sole_piece(*this, header_only, | |
| *body_file, body_file_content_type); | |
| } | |
| } | } |
| const String& Request::mime_type_of(const char* user_file_name_cstr) { | const String& Request::mime_type_of(const char* user_file_name_cstr) { |