--- parser3/src/main/pa_common.C 2003/03/21 07:08:28 1.147 +++ parser3/src/main/pa_common.C 2016/12/24 23:02:13 1.297 @@ -1,25 +1,57 @@ /** @file Parser: commonly functions. - Copyright(c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2000-2015 Art. Lebedev Studio (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) -*/ -static const char* IDENT_COMMON_C="$Date: 2003/03/21 07:08:28 $"; + * BASE64 part + * Authors: Michael Zucchi + * Jeffrey Stedfast + * + * Copyright 2000-2004 Ximian, Inc. (www.ximian.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA. + * + */ #include "pa_common.h" #include "pa_exception.h" -#include "pa_globals.h" #include "pa_hash.h" -#include "pa_vstring.h" -#include "pa_vdate.h" +#include "pa_globals.h" +#include "pa_charsets.h" +#include "pa_http.h" +#include "pa_request_charsets.h" +#include "pcre.h" +#include "pa_request.h" + +#include "pa_idna.h" +#include "pa_convert_utf.h" + +#ifdef _MSC_VER +#include +#include +#endif -#ifdef WIN32 -# include +#ifdef _MSC_VER +#define pa_mkdir(path, mode) _mkdir(path) #else -# define closesocket close +#define pa_mkdir(path, mode) mkdir(path, mode) #endif +volatile const char * IDENT_PA_COMMON_C="$Id: pa_common.C,v 1.297 2016/12/24 23:02:13 moko Exp $" IDENT_PA_COMMON_H IDENT_PA_HASH_H IDENT_PA_ARRAY_H IDENT_PA_STACK_H; + // some maybe-undefined constants #ifndef _O_TEXT @@ -39,422 +71,158 @@ static const char* IDENT_COMMON_C="$Date # endif #endif -// locking constants +// defines for globals -#ifdef HAVE_FLOCK +#define FILE_STATUS_NAME "status" -static int lock_shared_blocking(int fd) { return flock(fd, LOCK_SH); } -static int lock_exclusive_blocking(int fd) { return flock(fd, LOCK_EX); } -static int lock_exclusive_nonblocking(int fd) { return flock(fd, LOCK_EX || LOCK_NB); } -static int unlock(int fd) { return flock(fd, LOCK_UN); } +// globals -#else -#ifdef HAVE__LOCKING +const String file_status_name(FILE_STATUS_NAME); -#define FLOCK(operation) lseek(fd, 0, SEEK_SET); return _locking(fd, operation, 1) -static int lock_shared_blocking(int fd) { FLOCK(_LK_LOCK); } -static int lock_exclusive_blocking(int fd) { FLOCK(_LK_LOCK); } -static int lock_exclusive_nonblocking(int fd) { FLOCK(_LK_NBLCK); } -static int unlock(int fd) { FLOCK(_LK_UNLCK); } +// functions -#else -#ifdef HAVE_FCNTL - -#define FLOCK(cmd, arg) struct flock ls={arg, SEEK_SET}; return fcntl(fd, cmd, &ls) -static int lock_shared_blocking(int fd) { FLOCK(F_SETLKW, F_RDLCK); } -static int lock_exclusive_blocking(int fd) { FLOCK(F_SETLKW, F_WRLCK); } -static int lock_exclusive_nonblocking(int fd) { FLOCK(F_SETLK, F_RDLCK); } -static int unlock(int fd) { FLOCK(F_SETLK, F_UNLCK); } - -#else -#ifdef HAVE_LOCKF - -#define FLOCK(fd, operation) lseek(fd, 0, SEEK_SET); return lockf(fd, operation, 1) -static int lock_shared_blocking(int fd) { FLOCK(F_LOCK); } // on intel solaris man doesn't have doc on shared blocking -static int lock_exclusive_blocking(int fd) { FLOCK(F_LOCK); } -static int lock_exclusive_nonblocking(int fd) { FLOCK(F_TLOCK); } -static int unlock(int fd) { FLOCK(F_TLOCK); } +char* file_read_text(Request_charsets& charsets, const String& file_spec, bool fail_on_read_problem, HashStringValue* params, bool transcode_result) { + File_read_result file=file_read(charsets, file_spec, true, params, fail_on_read_problem, 0, 0, 0, transcode_result); + return file.success?file.str:0; +} -#else +char* file_load_text(Request& r, const String& file_spec, bool fail_on_read_problem, HashStringValue* params, bool transcode_result) { + File_read_result file=file_load(r, file_spec, true, params, fail_on_read_problem, 0, 0, 0, transcode_result); + return file.success?file.str:0; +} -#error unable to find file locking func +/// these options were handled but not checked elsewhere, now check them +int pa_get_valid_file_options_count(HashStringValue& options) { + int result=0; + if(options.get(PA_SQL_LIMIT_NAME)) + result++; + if(options.get(PA_SQL_OFFSET_NAME)) + result++; + if(options.get(PA_COLUMN_SEPARATOR_NAME)) + result++; + if(options.get(PA_COLUMN_ENCLOSER_NAME)) + result++; + if(options.get(PA_CHARSET_NAME)) + result++; + return result; +} -#endif -#endif -#endif +#ifndef DOXYGEN +struct File_read_action_info { + char **data; size_t *data_size; + char* buf; size_t offset; size_t count; +}; #endif -#define DEFAULT_USER_AGENT "parser3" - - -void fix_line_breaks(char* buf, size_t& size) { - if(size==0) +static void file_read_action(struct stat& finfo, int f, const String& file_spec, void *context) { + File_read_action_info& info=*static_cast(context); + size_t to_read_size=info.count; + if(!to_read_size) + to_read_size=(size_t)finfo.st_size; + if(to_read_size) { + if(info.offset) + lseek(f, info.offset, SEEK_SET); + *info.data=info.buf ? info.buf : (char *)pa_malloc_atomic(to_read_size+1); + ssize_t result=read(f, *info.data, to_read_size); + if(result<0) + throw Exception("file.read", &file_spec, "read failed: %s (%d)", strerror(errno), errno); + *info.data_size=result; + } else { // empty file + // for both, text and binary: for text we need that terminator, for binary we need nonzero pointer to be able to save such files + *info.data=(char *)pa_malloc_atomic(1); + *(char*)(*info.data)=0; + *info.data_size=0; return; - - //_asm int 3; - const char* const eob=buf+size; - char* dest=buf; - // fix DOS: \r\n -> \n - // fix Macintosh: \r -> \n - char* bol=buf; - while(char* eol=(char*)memchr(bol, '\r', eob -bol)) { - size_t len=eol-bol; - if(dest!=bol) - memcpy(dest, bol, len); - dest+=len; - *dest++='\n'; - - if(&eol[1]sin_family=AF_INET; - addr->sin_port=htons(port); - if(host) { - if(struct hostent *hostIP=gethostbyname(host)) - memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length); - else - return false; - } else - addr->sin_addr.s_addr=INADDR_ANY; - return true; } -static int http_read_response(String& response, int sock, bool fail_on_status_ne_200){ - const String* status_code=0; - ssize_t EOLat=0; - while(true) { - char *buf=(char *)response.pool().malloc(MAX_STRING); - ssize_t size=recv(sock, buf, MAX_STRING, 0); - if(size<=0) - break; - response.APPEND_TAINTED(buf, size, "remote HTTP server response", 0); - if(!status_code && (EOLat=response.pos("\r\n", 2))>=0) { // checking status in first response - const String& status_line=response.mid(0, (size_t)EOLat); - Array astatus(response.pool()); - size_t pos_after_ref=0; status_line.split(astatus, &pos_after_ref, " ", 1); - status_code=astatus.get_string(1); - - if(fail_on_status_ne_200 && *status_code!="200") - throw Exception("http.status", - status_code, - "invalid HTTP response status"); - } +File_read_result file_read(Request_charsets& charsets, const String& file_spec, + bool as_text, HashStringValue *params, + bool fail_on_read_problem, + char* buf, size_t offset, size_t count, bool transcode_text_result) { + File_read_result result={false, 0, 0, 0}; + if(params){ + int valid_options=pa_get_valid_file_options_count(*params); + if(valid_options!=params->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); } - if(status_code) - return status_code->as_int(); - else - throw Exception("http.response", - 0, - "bad response from host - no status found (size=%lu)", response.size()); -} -/* ********************** request *************************** */ + File_read_action_info info={&result.str, &result.length, buf, offset, count}; -#if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP) -# define PA_USE_ALARM -#endif + result.success=file_read_action_under_lock(file_spec, "read", file_read_action, &info, as_text, fail_on_read_problem); -#ifdef PA_USE_ALARM -static sigjmp_buf timeout_env; -static void timeout_handler(int sig){ - siglongjmp(timeout_env, 1); -} -#endif + if(as_text){ + if(result.success){ + Charset* asked_charset=0; + if(params) + if(Value* vcharset_name=params->get(PA_CHARSET_NAME)) + asked_charset=&pa_charsets.get(vcharset_name->as_string()); -static int http_request(String& response, - const String *origin_string, - const char* host, int port, - const char* request, - int timeout, - bool fail_on_status_ne_200){ - if(!host) - throw Exception("http.host", - origin_string, - "zero hostname"); //never + asked_charset=pa_charsets.checkBOM(result.str, result.length, asked_charset); -#ifdef PA_USE_ALARM - signal(SIGALRM, timeout_handler); -#endif - int sock=-1; -#ifdef PA_USE_ALARM - if(sigsetjmp(timeout_env, 1)) { - // stupid gcc [2.95.4] generated bad code - // which failed to handle sigsetjmp+throw: crashed inside of pre-throw code. - // rewritten simplier [though duplicating closesocket code] - if(sock>=0) - closesocket(sock); - throw Exception("http.timeout", - origin_string, - "timeout occured while retrieving document"); - return 0; // never - } else { - alarm(timeout); -#endif - try { - int result; - struct sockaddr_in dest; + if(result.length && transcode_text_result && asked_charset){ // length must be checked because transcode returns CONST string in case length==0, which contradicts hacking few lines below + String::C body=String::C(result.str, result.length); + body=Charset::transcode(body, *asked_charset, charsets.source()); - if(!set_addr(&dest, host, port)) - throw Exception("http.host", - origin_string, - "can not resolve hostname \"%s\"", host); - - if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/))<0) - throw Exception("http.connect", - origin_string, - "can not make socket: %s (%d)", strerror(errno), errno); - if(connect(sock, (struct sockaddr *)&dest, sizeof(dest))) - throw Exception("http.connect", - origin_string, - "can not connect to host \"%s\": %s (%d)", host, strerror(errno), errno); - size_t request_size=strlen(request); - if(send(sock, request, request_size, 0)!=(ssize_t)request_size) - throw Exception("http.connect", - origin_string, - "error sending request: %s (%d)", strerror(errno), errno); - - result=http_read_response(response, sock, fail_on_status_ne_200); - closesocket(sock); -#ifdef PA_USE_ALARM - alarm(0); -#endif - return result; - } catch(...) { -#ifdef PA_USE_ALARM - alarm(0); -#endif - if(sock>=0) - closesocket(sock); - /*re*/throw; + result.str=const_cast(body.str); // hacking a little + result.length=body.length; + } } + if(result.length) + fix_line_breaks(result.str, result.length); } -} -#ifndef DOXYGEN -struct Http_pass_header_info { - String* request; - bool user_agent_specified; -}; -#endif -static void http_pass_header(const Hash::Key& key, Hash::Val *value, void *info) -{ - Http_pass_header_info& i=*static_cast(info); - Pool& pool=i.request->pool(); - - *(i.request)<(value), String::UL_HTTP_HEADER, false) - <<"\n"; - - if(key.change_case(pool, String::CC_UPPER)=="USER-AGENT") - i.user_agent_specified=true; + return result; } -static void file_read_http(Pool& pool, const String& file_spec, - void*& data, size_t& data_size, - Hash *options=0, Hash** out_fields=0) { - char host[MAX_STRING]; - const char* uri; - int port; - const char* method="GET"; - int timeout=2; - bool fail_on_status_ne_200=true; - Value *vheaders=0; - - String& connect_string=*new(pool) String(pool); // must not be local [exception may be reported outside] - // not in ^sql{... UL_SQL ...} spirit, but closer to ^file::load one - connect_string.append(file_spec, String::UL_URI); // tainted pieces -> URI pieces - - char* connect_string_cstr=connect_string.cstr(String::UL_UNSPECIFIED); - if(strncmp(connect_string_cstr, "http://", 7)!=0) - throw Exception(0, - &connect_string, - "does not start with http://"); //never - connect_string_cstr+=7; - - strncpy(host, connect_string_cstr, sizeof(host)-1); host[sizeof(host)-1]=0; - char* host_uri=lsplit(host, '/'); - uri=host_uri?connect_string_cstr+(host_uri-1-host):"/"; - char* port_cstr=lsplit(host, ':'); - char* error_pos=0; - port=port_cstr?strtol(port_cstr, &error_pos, 0):80; - - if(options) { - int valid_options=0; - if(Value *vmethod=static_cast(options->get(*http_method_name))) { - valid_options++; - method=vmethod->as_string().cstr(); - } - if(Value *vtimeout=static_cast(options->get(*http_timeout_name))) { - valid_options++; - timeout=vtimeout->as_int(); - } - if(vheaders=static_cast(options->get(*http_headers_name))) { - valid_options++; - } - if(Value *vany_status=static_cast(options->get(*http_any_status_name))) { - valid_options++; - fail_on_status_ne_200=!vany_status->as_bool(); - } - if(valid_options!=options->size()) - throw Exception("parser.runtime", - 0, - "invalid option passed"); - } - - //making request - String request(pool); - request<< method <<" "<< uri <<" HTTP/1.0\nHost: "<< host<<"\n"; - bool user_agent_specified=false; - if(vheaders && !vheaders->is_string()) { // allow empty - if(Hash *headers=vheaders->get_hash(&connect_string)) { - Http_pass_header_info info={&request}; - headers->for_each(http_pass_header, &info); - user_agent_specified=info.user_agent_specified; - } else - throw Exception("parser.runtime", - &connect_string, - "headers param must be hash"); - }; - if(!user_agent_specified) // defaulting - request << "user-agent: " DEFAULT_USER_AGENT "\n"; - request<<"\n"; - - //sending request - String response(pool); - int status_code=http_request(response, - &connect_string, host, port, request.cstr(String::UL_UNSPECIFIED), - timeout, fail_on_status_ne_200); - - //processing results - int pos=response.pos("\r\n\r\n", 4); - if(pos<1){ - throw Exception("http.response", - &connect_string, - "bad response from host - no headers found"); - } - String header_block=response.mid(0, pos); - String body=response.mid(pos+4, response.size()); - - Array aheaders(pool); - Hash& headers=*new(pool) Hash(pool); - size_t pos_after_ref=0; - header_block.split(aheaders, &pos_after_ref, "\r\n", 2); - - //processing headers - for(int i=1;ipos(": ", 2); - if(pos<1) - throw Exception("http.response", - &connect_string, - "bad response from host - bad header \"%s\"", line->cstr()); - - headers.put( - line->mid(0, pos).change_case(pool, String::CC_UPPER), - new(pool) VString(line->mid(pos+2, line->size()))); - } else - throw Exception("http.response", - &connect_string, - "bad response from host - bad headers \"%s\"", header_block.cstr()); - } - - // output response - data=body.cstr(); data_size=body.size(); - if(out_fields) { - headers.put(*file_status_name, new(pool) VInt(pool, status_code)); - *out_fields=&headers; - } -} +File_read_result file_load(Request& r, const String& file_spec, + bool as_text, HashStringValue *params, + bool fail_on_read_problem, + char* buf, size_t offset, size_t count, bool transcode_text_result) { + + File_read_result result={false, 0, 0, 0}; + if(file_spec.starts_with("http://")) { + if(offset || count) + throw Exception(PARSER_RUNTIME, 0, "offset and load options are not supported for HTTP:// file load"); -#ifndef DOXYGEN -struct File_read_action_info { - void **data; size_t *data_size; -}; -#endif -static void file_read_action(Pool& pool, - struct stat& finfo, - int f, - const String& file_spec, const char* fname, bool as_text, - void *context) { - File_read_action_info& info=*static_cast(context); - if(size_t to_read_size=(size_t)finfo.st_size) { - *info.data=pool.malloc(to_read_size+(as_text?1:0), 3); - *info.data_size=(size_t)read(f, *info.data, to_read_size); - - if(ssize_t(*info.data_size)<0 || *info.data_size>to_read_size) - throw Exception(0, - &file_spec, - "read failed: actually read %lu bytes count not in [0..%lu] valid range", - *info.data_size, to_read_size); - } else { // empty file - if(as_text) { - *info.data=pool.malloc(1); - *(char*)(*info.data)=0; - } else - *info.data=0; - *info.data_size=0; - return; - } -} -bool file_read(Pool& pool, const String& file_spec, - void*& data, size_t& data_size, - bool as_text, Hash *params, Hash** out_fields, - bool fail_on_read_problem) { - bool result; - if(file_spec.starts_with("http://", 7)) { // fail on read problem - file_read_http(pool, file_spec, data, data_size, params, out_fields); - result=true; - } else { - File_read_action_info info={&data, &data_size}; - result=file_read_action_under_lock(pool, file_spec, - "read", file_read_action, &info, - as_text, fail_on_read_problem); - } + File_read_http_result http=pa_internal_file_read_http(r, file_spec, as_text, params, transcode_text_result); + result.success=true; + result.str=http.str; + result.length=http.length; + result.headers=http.headers; + } else + result= + file_read(r.charsets, file_spec, as_text, params, fail_on_read_problem, buf, offset, count, transcode_text_result); - if(result && as_text) { - // UTF-8 signature: EF BB BF - if(data_size>=3) { - char *in=(char *)data; - if((in[0] == '\xEF') && (in[1] == '\xBB') && - (in[2] == '\xBF')) { - data=in+3; data_size-=3;// skip prefix - } - } + return result; +} - fix_line_breaks((char *)(data), data_size); - // note: after fixing - ((char*&)(data))[data_size]=0; - } - return result; +#ifdef PA_SAFE_MODE +void check_safe_mode(struct stat finfo, const String& file_spec, const char* fname) { + if(finfo.st_uid/*foreign?*/!=geteuid() + && finfo.st_gid/*foreign?*/!=getegid()) + throw Exception(PARSER_RUNTIME, + &file_spec, + "parser is in safe mode: reading files of foreign group and user disabled " + "[recompile parser with --disable-safe-mode configure option], " + "actual filename '%s', fuid(%d)!=euid(%d) or fgid(%d)!=egid(%d)", + fname, finfo.st_uid, geteuid(), finfo.st_gid, getegid() + ); } +#else +void check_safe_mode(struct stat, const String&, const char*) { +} +#endif -bool file_read_action_under_lock(Pool& pool, const String& file_spec, + + +bool file_read_action_under_lock(const String& file_spec, const char* action_name, File_read_action action, void *context, bool as_text, bool fail_on_read_problem) { - const char* fname=file_spec.cstr(String::UL_FILE_SPEC); + const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC); int f; // first open, next stat: @@ -466,67 +234,55 @@ bool file_read_action_under_lock(Pool& p // they delay update till open, so we would receive "!^test[" string // if would do stat, next open. // later: it seems, even this does not help sometimes - if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) { + if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) { try { - if(lock_shared_blocking(f)!=0) - throw Exception("file.lock", - &file_spec, - "shared lock failed: %s (%d), actual filename '%s'", - strerror(errno), errno, fname); + if(pa_lock_shared_blocking(f)!=0) + throw Exception("file.lock", &file_spec, "shared lock failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname); struct stat finfo; - if(stat(fname, &finfo)!=0) + if(fstat(f, &finfo)!=0) throw Exception("file.missing", // hardly possible: we just opened it OK - &file_spec, - "stat failed: %s (%d), actual filename '%s'", - strerror(errno), errno, fname); - -#ifdef PA_SAFE_MODE - if(finfo.st_uid/*foreign?*/!=geteuid() - && finfo.st_gid/*foreign?*/!=getegid()) - throw Exception("parser.runtime", - &file_spec, - "parser is in safe mode: reading files of foreign group and user disabled [recompile parser with --disable-safe-mode configure option], actual filename '%s'", - fname); -#endif + &file_spec, "stat failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname); + + check_safe_mode(finfo, file_spec, fname); - action(pool, finfo, f, file_spec, fname, as_text, context); + action(finfo, f, file_spec, context); } catch(...) { - unlock(f);close(f); + pa_unlock(f);close(f); if(fail_on_read_problem) - /*re*/throw; - return false; + rethrow; + return false; } - unlock(f);close(f); + pa_unlock(f);close(f); return true; - } else { + } else { if(fail_on_read_problem) - throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0, - &file_spec, - "%s failed: %s (%d), actual filename '%s'", - action_name, strerror(errno), errno, fname); + throw Exception(errno==EACCES ? "file.access" : (errno==ENOENT || errno==ENOTDIR || errno==ENODEV) ? "file.missing" : 0, + &file_spec, "%s failed: %s (%d), actual filename '%s'", action_name, strerror(errno), errno, fname); return false; } } -static void create_dir_for_file(const String& file_spec) { +void create_dir_for_file(const String& file_spec) { size_t pos_after=1; - int pos_before; - while((pos_before=file_spec.pos("/", 1, pos_after))>=0) { - mkdir(file_spec.mid(0, pos_before).cstr(String::UL_FILE_SPEC), 0775); + size_t pos_before; + while((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND) { + pa_mkdir(file_spec.mid(0, pos_before).taint_cstr(String::L_FILE_SPEC), 0775); pos_after=pos_before+1; } } bool file_write_action_under_lock( const String& file_spec, - const char* action_name, File_write_action action, void *context, + const char* action_name, + File_write_action action, + void *context, bool as_text, bool do_append, bool do_block, bool fail_on_lock_problem) { - const char* fname=file_spec.cstr(String::UL_FILE_SPEC); + const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC); int f; if(access(fname, W_OK)!=0) // no create_dir_for_file(file_spec); @@ -535,11 +291,8 @@ bool file_write_action_under_lock( O_CREAT|O_RDWR |(as_text?_O_TEXT:_O_BINARY) |(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) { - if((do_block?lock_exclusive_blocking(f):lock_exclusive_nonblocking(f))!=0) { - Exception e("file.lock", - &file_spec, - "shared lock failed: %s (%d), actual filename '%s'", - strerror(errno), errno, fname); + if((do_block?pa_lock_exclusive_blocking(f):pa_lock_exclusive_nonblocking(f))!=0) { + Exception e("file.lock", &file_spec, "shared lock failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname); close(f); if(fail_on_lock_problem) throw e; @@ -547,93 +300,163 @@ bool file_write_action_under_lock( } try { - action(f, context); +#if (defined(HAVE_FCHMOD) && defined(PA_SAFE_MODE)) + struct stat finfo; + if(fstat(f, &finfo)==0 && finfo.st_mode & 0111) + fchmod(f, finfo.st_mode & 0666/*clear executable bits*/); // backward: ignore errors if any +#endif + action(f, context); } catch(...) { #ifdef HAVE_FTRUNCATE if(!do_append) ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower #endif - unlock(f);close(f); - /*re*/throw; + pa_unlock(f);close(f); + rethrow; } #ifdef HAVE_FTRUNCATE if(!do_append) ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov for discovering] #endif - unlock(f);close(f); + pa_unlock(f);close(f); return true; } else - throw Exception(errno==EACCES?"file.access":0, - &file_spec, - "%s failed: %s (%d), actual filename '%s'", - action_name, strerror(errno), errno, fname); + throw Exception(errno==EACCES ? "file.access" : 0, &file_spec, "%s failed: %s (%d), actual filename '%s'", action_name, strerror(errno), errno, fname); // here should be nothing, see rethrow above } #ifndef DOXYGEN struct File_write_action_info { - const void *data; size_t size; + const char* str; + size_t length; }; #endif + static void file_write_action(int f, void *context) { File_write_action_info& info=*static_cast(context); - if(info.size) { - int written=write(f, info.data, info.size); + if(info.length) { + ssize_t written=write(f, info.str, info.length); if(written<0) - throw Exception(0, - 0, - "write failed: %s (%d)", strerror(errno), errno); + throw Exception("file.write", 0, "write failed: %s (%d)", strerror(errno), errno); + if((size_t)written!=info.length) + throw Exception("file.write", 0, "write failed: %u of %u bytes written", written, info.length); } } + void file_write( - const String& file_spec, - const void *data, size_t size, + Request_charsets& charsets, + const String& file_spec, + const char* data, + size_t size, bool as_text, - bool do_append) { + bool do_append, + Charset* asked_charset) { + + if(as_text && asked_charset){ + String::C body=String::C(data, size); + body=Charset::transcode(body, charsets.source(), *asked_charset); + data=body.str; + size=body.length; + }; + File_write_action_info info={data, size}; + file_write_action_under_lock( - file_spec, - "write", file_write_action, &info, - as_text, - do_append); + file_spec, + "write", + file_write_action, + &info, + as_text, + do_append); +} + +static size_t get_dir(char* fname, size_t helper_length){ + bool dir=false; + size_t pos=0; + for(pos=helper_length; pos; pos--){ + char c=fname[pos-1]; + if(c=='/' || c=='\\'){ + fname[pos-1]=0; + dir=true; + } else if(dir) break; + } + return pos; +} + +static bool entry_readable(char* fname, bool need_dir) { + if(need_dir){ + size_t size=strlen(fname); + while(size) { + char c=fname[size-1]; + if(c=='/' || c=='\\') + fname[--size]=0; + else + break; + } + } + + struct stat finfo; + if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) { + bool is_dir=(finfo.st_mode&S_IFDIR) != 0; + return is_dir==need_dir; + } + return false; +} + +static bool entry_readable(const String& file_spec, bool need_dir) { + return entry_readable(file_spec.taint_cstrm(String::L_FILE_SPEC), need_dir); } // throws nothing! [this is required in file_move & file_delete] static void rmdir(const String& file_spec, size_t pos_after) { - int pos_before; - if((pos_before=file_spec.pos("/", 1, pos_after))>=0) - rmdir(file_spec, pos_before+1); - - rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::UL_FILE_SPEC)); + char* dir_spec=file_spec.taint_cstrm(String::L_FILE_SPEC); + size_t length=strlen(dir_spec); + while( (length=get_dir(dir_spec, length)) && (length > pos_after) ){ +#ifdef _MSC_VER + if(!entry_readable(dir_spec, true)) + break; + DWORD attrs=GetFileAttributes(dir_spec); + if( + (attrs==INVALID_FILE_ATTRIBUTES) + || !(attrs & FILE_ATTRIBUTE_DIRECTORY) + || (attrs & FILE_ATTRIBUTE_REPARSE_POINT) + ) + break; +#endif + if( rmdir(dir_spec) ) + break; + }; } -bool file_delete(const String& file_spec, bool fail_on_read_problem) { - const char* fname=file_spec.cstr(String::UL_FILE_SPEC); - if(unlink(fname)!=0) - if(fail_on_read_problem) - throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0, - &file_spec, - "unlink failed: %s (%d), actual filename '%s'", - strerror(errno), errno, fname); + +bool file_delete(const String& file_spec, bool fail_on_problem, bool keep_empty_dirs) { + const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC); + if(unlink(fname)!=0) { + if(fail_on_problem) + throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0, + &file_spec, "unlink failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname); else return false; + } + + if(!keep_empty_dirs) + rmdir(file_spec, 1); - rmdir(file_spec, 1); return true; } -void file_move(const String& old_spec, const String& new_spec) { - const char* old_spec_cstr=old_spec.cstr(String::UL_FILE_SPEC); - const char* new_spec_cstr=new_spec.cstr(String::UL_FILE_SPEC); + +void file_move(const String& old_spec, const String& new_spec, bool keep_empty_dirs) { + const char* old_spec_cstr=old_spec.taint_cstr(String::L_FILE_SPEC); + const char* new_spec_cstr=new_spec.taint_cstr(String::L_FILE_SPEC); create_dir_for_file(new_spec); if(rename(old_spec_cstr, new_spec_cstr)!=0) - throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0, - &old_spec, - "rename failed: %s (%d), actual filename '%s' to '%s'", - strerror(errno), errno, old_spec_cstr, new_spec_cstr); + throw Exception(errno==EACCES ? "file.access" : errno==ENOENT ? "file.missing" : 0, + &old_spec, "rename failed: %s (%d), actual filename '%s' to '%s'", strerror(errno), errno, old_spec_cstr, new_spec_cstr); - rmdir(old_spec, 1); + if(!keep_empty_dirs) + rmdir(old_spec, 1); } @@ -646,62 +469,39 @@ bool entry_exists(const char* fname, str } bool entry_exists(const String& file_spec) { - const char* fname=file_spec.cstr(String::UL_FILE_SPEC); + const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC); return entry_exists(fname, 0); } -static bool entry_readable(const String& file_spec, bool need_dir) { - char* fname=file_spec.cstr(String::UL_FILE_SPEC); - if(need_dir) { - size_t size=strlen(fname); - while(size) { - char c=fname[size-1]; - if(c=='/' || c=='\\') - fname[--size]=0; - else - break; - } - } - struct stat finfo; - if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) { - bool is_dir=(finfo.st_mode&S_IFDIR) != 0; - return is_dir==need_dir; - } - return false; -} -bool file_readable(const String& file_spec) { +bool file_exist(const String& file_spec) { return entry_readable(file_spec, false); } -bool dir_readable(const String& file_spec) { + +bool dir_exists(const String& file_spec) { return entry_readable(file_spec, true); } -String *file_readable(const String& path, const String& name) { - String *result=new(path.pool()) String(path); - *result << "/"; - *result << name; - return file_readable(*result)?result:0; + +const String* file_exist(const String& path, const String& name) { + String& result=*new String(path); + if(path.last_char() != '/') + result << "/"; + result << name; + return file_exist(result)?&result:0; } + bool file_executable(const String& file_spec) { - return access(file_spec.cstr(String::UL_FILE_SPEC), X_OK)==0; + return access(file_spec.taint_cstr(String::L_FILE_SPEC), X_OK)==0; } -bool file_stat(const String& file_spec, - size_t& rsize, - time_t& ratime, - time_t& rmtime, - time_t& rctime, - bool fail_on_read_problem) { - Pool& pool=file_spec.pool(); - const char* fname=file_spec.cstr(String::UL_FILE_SPEC); - struct stat finfo; - if(stat(fname, &finfo)!=0) +bool file_stat(const String& file_spec, uint64_t& rsize, time_t& ratime, time_t& rmtime, time_t& rctime, bool fail_on_read_problem) { + const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC); + struct stat finfo; + if(stat(fname, &finfo)!=0) { if(fail_on_read_problem) - throw Exception("file.missing", - &file_spec, - "getting file size failed: %s (%d), real filename '%s'", - strerror(errno), errno, fname); + throw Exception("file.missing", &file_spec, "getting file size failed: %s (%d), real filename '%s'", strerror(errno), errno, fname); else return false; + } rsize=finfo.st_size; ratime=finfo.st_atime; rmtime=finfo.st_mtime; @@ -709,122 +509,327 @@ bool file_stat(const String& file_spec, return true; } +/** + String related functions +*/ + +bool capitalized(const char* s){ + bool upper=true; + for(const char* c=s; *c; c++){ + if(*c != (upper ? toupper((unsigned char)*c) : tolower((unsigned char)*c))) + return false; + upper=strchr("-_ ", *c) != 0; + } + return true; +} + +const char* capitalize(const char* s){ + if(!s || capitalized(s)) + return s; + + char* result=pa_strdup(s); + if(result){ + bool upper=true; + for(char* c=result; *c; c++){ + *c=upper ? (char)toupper((unsigned char)*c) : (char)tolower((unsigned char)*c); + upper=strchr("-_ ", *c) != 0; + } + } + return (const char*)result; +} + +char *str_lower(const char *s, size_t helper_length){ + char *result=pa_strdup(s, helper_length); + for(char* c=result; *c; c++) + *c=(char)tolower((unsigned char)*c); + return result; +} + +char *str_upper(const char *s, size_t helper_length){ + char *result=pa_strdup(s, helper_length); + for(char* c=result; *c; c++) + *c=(char)toupper((unsigned char)*c); + return result; +} + +void fix_line_breaks(char *str, size_t& length) { + //_asm int 3; + const char* const eob=str+length; + char* dest=str; + // fix DOS: \r\n -> \n + // fix Macintosh: \r -> \n + char* bol=str; + while(char* eol=(char*)memchr(bol, '\r', eob -bol)) { + size_t len=eol-bol; + if(dest!=bol) + memmove(dest, bol, len); + dest+=len; + *dest++='\n'; + + if(&eol[1]='0' && c<='9'){ + if(state == Flags) state=Width; // no more flags + break; + } else if(c=='d' || c=='i'){ + result=FormatInt; + } else if(strchr("feEgG", c)!=0){ + result=FormatDouble; + } else if(strchr("uoxX", c)!=0){ + result=FormatUInt; + } else { + return FormatInvalid; // invalid char + } + state=Done; + break; + case Done: + return FormatInvalid; // no chars allowed after 'type' + } + } + return result; +} + + +const char* format(double value, const char* fmt) { + char local_buf[MAX_NUMBER]; + int size=-1; + + if(fmt && strlen(fmt)){ + switch(format_type(fmt)){ + case FormatDouble: + size=snprintf(local_buf, sizeof(local_buf), fmt, value); + break; + case FormatInt: size=snprintf(local_buf, sizeof(local_buf), fmt, (int)value); - else - size=snprintf(local_buf, sizeof(local_buf), fmt, value); - else - size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value); - - char* pool_buf=(char *)pool.malloc(size+1, 4); - memcpy(pool_buf, local_buf, size+1); - return pool_buf; + break; + case FormatUInt: + size=snprintf(local_buf, sizeof(local_buf), fmt, (uint)value); + break; + case FormatInvalid: + throw Exception(PARSER_RUNTIME, 0, "Incorrect format string '%s' was specified.", fmt); + } + } else + size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value); + + if(size < 0 || size >= MAX_NUMBER-1){ // on win32 we manually reduce max size while printing + throw Exception(PARSER_RUNTIME, 0, "Error occure white executing snprintf with format string '%s'.", fmt); + } + + return pa_strdup(local_buf, (size_t)size); } size_t stdout_write(const void *buf, size_t size) { #ifdef WIN32 + size_t to_write = size; do{ - int chunk_written=fwrite(buf, 1, min(8*0x400, size), stdout); + int chunk_written=fwrite(buf, 1, min((size_t)8*0x400, size), stdout); if(chunk_written<=0) break; size-=chunk_written; buf=((const char*)buf)+chunk_written; } while(size>0); - return size; + return to_write-size; #else return fwrite(buf, 1, size, stdout); #endif } -char* unescape_chars(Pool& pool, const char* cp, int len) { - char* s=(char *)pool.malloc(len + 1, 5); - enum EscapeState { - EscapeRest, - EscapeFirst, - EscapeSecond - } escapeState=EscapeRest; - int escapedValue=0; +enum EscapeState { + EscapeRest, + EscapeFirst, + EscapeSecond, + EscapeUnicode +}; + +// @todo prescan for reduce required size (unescaped sting in 1 byte charset requires less memory usually) +char* unescape_chars(const char* cp, int len, Charset* charset, bool js){ + char* s=new(PointerFreeGC) char[len+1]; // must be enough (%uXXXX==6 bytes, max utf-8 char length==6 bytes) + char* dst=s; + EscapeState escapeState=EscapeRest; + uint escapedValue=0; int srcPos=0; - int dstPos=0; - while(srcPos < len) { - int ch=cp[srcPos]; - switch(escapeState) { - case EscapeRest: - if(ch=='%') { - escapeState=EscapeFirst; - } else if(ch=='+') { - s[dstPos++]=' '; - } else { - s[dstPos++]=ch; + short int jsCnt=0; + while(srcPosstore_Char((XMLByte*&)dst, (XMLCh)escapedValue, '?'); + escapeState=EscapeRest; + } + } else { + // not full unicode value + escapeState=EscapeRest; + } + break; } - break; - case EscapeFirst: - escapedValue=hex_value[ch] << 4; - escapeState=EscapeSecond; - break; - case EscapeSecond: - escapedValue +=hex_value[ch]; - s[dstPos++]=escapedValue; - escapeState=EscapeRest; - break; } - srcPos++; + + srcPos++; } - s[dstPos]=0; + + *dst=0; // zero-termination return s; } +char *search_stop(char*& current, char cstop_at) { + // sanity check + if(!current) + return 0; + + // skip leading WS + while(*current==' ' || *current=='\t') + current++; + if(!*current) + return current=0; + + char *result=current; + if(char *pstop_at=strchr(current, cstop_at)) { + *pstop_at=0; + current=pstop_at+1; + } else + current=0; + return result; +} + #ifdef WIN32 void back_slashes_to_slashes(char* s) { if(s) @@ -832,95 +837,564 @@ void back_slashes_to_slashes(char* s) { if(*s=='\\') *s='/'; } +#endif + +size_t strpos(const char *str, const char *substr) { + const char *p = strstr(str, substr); + return (p==0)?STRING_NOT_FOUND:p-str; +} + +int remove_crlf(char* start, char* end) { + char* from=start; + char* to=start; + bool skip=false; + while(from < end){ + switch(*from){ + case '\n': + case '\r': + case '\t': + case ' ': + if(!skip){ + *to=' '; + to++; + skip=true; + } + break; + default: + if(from != to) + *to=*from; + to++; + skip=false; + } + from++; + } + return to-start; +} + +const char* hex_digits="0123456789ABCDEF"; + +const char* hex_string(unsigned char* bytes, size_t size, bool upcase) { + char *bytes_hex=new(PointerFreeGC) char [size*2/*byte->hh*/+1/*for zero-teminator*/]; + unsigned char *src=bytes; + unsigned char *end=bytes+size; + char *dest=bytes_hex; + + const char *hex=upcase? hex_digits : "0123456789abcdef"; + + for(; src + * Jeffrey Stedfast + * + * Copyright 2000 Helix Code, Inc. (www.helixcode.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA. + * + */ +static const char *base64_alphabet = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +/** + * g_mime_utils_base64_encode_step: + * @in: input stream + * @inlen: length of the input + * @out: output string + * @state: holds the number of bits that are stored in @save + * @save: leftover bits that have not yet been encoded + * + * Base64 encodes a chunk of data. Performs an 'encode step', only + * encodes blocks of 3 characters to the output at a time, saves + * left-over state in state and save (initialise to 0 on first + * invocation). + * + * Returns the number of bytes encoded. + **/ + +#define BASE64_GROUPS_IN_LINE 19 + +static size_t +g_mime_utils_base64_encode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save) +{ + register const unsigned char *inptr; + register unsigned char *outptr; + + if (inlen <= 0) + return 0; + + inptr = in; + outptr = out; + + if (inlen + ((unsigned char *)save)[0] > 2) { + const unsigned char *inend = in + inlen - 2; + register int c1 = 0, c2 = 0, c3 = 0; + register int already; + + already = *state; + + switch (((char *)save)[0]) { + case 1: c1 = ((unsigned char *)save)[1]; goto skip1; + case 2: c1 = ((unsigned char *)save)[1]; + c2 = ((unsigned char *)save)[2]; goto skip2; + } + + /* yes, we jump into the loop, no i'm not going to change it, its beautiful! */ + while (inptr < inend) { + c1 = *inptr++; + skip1: + c2 = *inptr++; + skip2: + c3 = *inptr++; + *outptr++ = base64_alphabet [c1 >> 2]; + *outptr++ = base64_alphabet [(c2 >> 4) | ((c1 & 0x3) << 4)]; + *outptr++ = base64_alphabet [((c2 & 0x0f) << 2) | (c3 >> 6)]; + *outptr++ = base64_alphabet [c3 & 0x3f]; + /* this is a bit ugly ... */ + if ((++already) >= BASE64_GROUPS_IN_LINE) { + *outptr++ = '\n'; + already = 0; + } + } + + ((unsigned char *)save)[0] = 0; + inlen = 2 - (inptr - inend); + *state = already; + } + + //d(printf ("state = %d, inlen = %d\n", (int)((char *)save)[0], inlen)); + + if (inlen > 0) { + register char *saveout; + + /* points to the slot for the next char to save */ + saveout = & (((char *)save)[1]) + ((char *)save)[0]; + + /* inlen can only be 0 1 or 2 */ + switch (inlen) { + case 2: *saveout++ = *inptr++; + case 1: *saveout++ = *inptr++; + } + *(char *)save = *(char *)save+(char)inlen; + } + + /*d(printf ("mode = %d\nc1 = %c\nc2 = %c\n", + (int)((char *)save)[0], + (int)((char *)save)[1], + (int)((char *)save)[2]));*/ + + return (outptr - out); } -*/ + +/** + * g_mime_utils_base64_encode_close: + * @in: input stream + * @inlen: length of the input + * @out: output string + * @state: holds the number of bits that are stored in @save + * @save: leftover bits that have not yet been encoded + * + * Base64 encodes the input stream to the output stream. Call this + * when finished encoding data with g_mime_utils_base64_encode_step to + * flush off the last little bit. + * + * Returns the number of bytes encoded. + **/ +static size_t +g_mime_utils_base64_encode_close (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save) +{ + unsigned char *outptr = out; + int c1, c2; + + if (inlen > 0) + outptr += g_mime_utils_base64_encode_step (in, inlen, outptr, state, save); + + c1 = ((unsigned char *)save)[1]; + c2 = ((unsigned char *)save)[2]; + + switch (((unsigned char *)save)[0]) { + case 2: + outptr[2] = base64_alphabet [(c2 & 0x0f) << 2]; + goto skip; + case 1: + outptr[2] = '='; + skip: + outptr[0] = base64_alphabet [c1 >> 2]; + outptr[1] = base64_alphabet [c2 >> 4 | ((c1 & 0x3) << 4)]; + outptr[3] = '='; + outptr += 4; + break; + } + + *outptr++ = 0; + + *save = 0; + *state = 0; + + return (outptr - out); +} + +static unsigned char gmime_base64_rank[256] = { + 255,255,255,255,255,255,255,255,255,254,254,255,255,254,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 254,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255, + 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255, + 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, + 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, +}; + +/** + * g_mime_utils_base64_decode_step: + * @in: input stream + * @inlen: max length of data to decode + * @out: output stream + * @state: holds the number of bits that are stored in @save + * @save: leftover bits that have not yet been decoded + * @strict: only base64 and whitespace chars are allowed + * + * Decodes a chunk of base64 encoded data. + * + * Returns the number of bytes decoded (which have been dumped in @out). + **/ +size_t +g_mime_utils_base64_decode_step(const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save, bool strict=false) +{ + const unsigned char *inptr; + unsigned char *outptr; + const unsigned char *inend; + int saved; + unsigned char c; + int i; + + inend = in + inlen; + outptr = out; + + /* convert 4 base64 bytes to 3 normal bytes */ + saved = *save; + i = *state; + inptr = in; + while (inptr < inend) { + c = gmime_base64_rank[*inptr++]; + switch(c) { + case 0xff: // non-base64 and non-whitespace chars. not allowed in strict mode + if(strict) + throw Exception(BASE64_FORMAT, 0, "Invalid base64 char on position %d is detected", inptr-in-1); + case 0xfe: // whitespace chars 0x09, 0x0A, 0x0D, 0x20 are allowed in any mode + break; + default: + saved = (saved << 6) | c; + i++; + if (i == 4) { + *outptr++ = (unsigned char)(saved >> 16); + *outptr++ = (unsigned char)(saved >> 8); + *outptr++ = (unsigned char)(saved); + i = 0; + } + } + } + + *save = saved; + *state = i; + + /* quick scan back for '=' on the end somewhere */ + /* fortunately we can drop 1 output char for each trailing = (upto 2) */ + i = 2; + while (inptr > in && i) { + inptr--; + if (gmime_base64_rank[*inptr] <= 0xfe) { + if (*inptr == '=' && outptr > out) + outptr--; + i--; + } + } + + /* if i != 0 then there is a truncation error! */ + return (outptr - out); +} + + +char* pa_base64_encode(const char *in, size_t in_size){ + size_t new_size = ((in_size / 3 + 1) * 4); + new_size += new_size / (BASE64_GROUPS_IN_LINE * 4)/*new lines*/ + 1/*zero terminator*/; + char* result = new(PointerFreeGC) char[new_size]; + int state=0; + int save=0; +#ifndef NDEBUG + size_t filled= #endif + g_mime_utils_base64_encode_close ((const unsigned char*)in, in_size, (unsigned char*)result, &state, &save); -bool StrEqNc(const char* s1, const char* s2, bool strict) { - while(true) { - if(!(*s1)) { - if(!(*s2)) - return true; - else - return !strict; - } else if(!(*s2)) - return !strict; - if(isalpha(*s1)) { - if(tolower(*s1) !=tolower(*s2)) - return false; - } else if((*s1) !=(*s2)) - return false; - s1++; - s2++; + //throw Exception(PARSER_RUNTIME, 0, "%d %d %d", in_size, new_size, filled); + assert(filled <= new_size); + + return result; +} + +struct File_base64_action_info { + unsigned char** base64; +}; + +static void file_base64_file_action(struct stat& finfo, int f, const String&, void *context) { + + if(finfo.st_size) { + File_base64_action_info& info=*static_cast(context); + *info.base64=new(PointerFreeGC) unsigned char[finfo.st_size * 2 + 6]; + unsigned char* base64 = *info.base64; + int state=0; + int save=0; + int nCount; + do { + unsigned char buffer[FILE_BUFFER_SIZE]; + nCount = file_block_read(f, buffer, sizeof(buffer)); + if( nCount ){ + size_t filled=g_mime_utils_base64_encode_step ((const unsigned char*)buffer, nCount, base64, &state, &save); + base64+=filled; + } + } while(nCount > 0); + g_mime_utils_base64_encode_close (0, 0, base64, &state, &save); } } -static bool isLeap(int year) { - return !( - (year % 4) || ((year % 400) && !(year % 100)) - ); -} - -int getMonthDays(int year, int month) { - int monthDays[]={ - 31, - isLeap(year) ? 29 : 28, - 31, - 30, - 31, - 30, - 31, - 31, - 30, - 31, - 30, - 31 - }; - return monthDays[month]; -} - -void remove_crlf(char* start, char* end) { - for(char* p=start; p 0; j--) + { + if(dwCrc & 1) + dwCrc = (dwCrc >> 1) ^ dwPolynomial; + else + dwCrc >>= 1; + } + crc32Table[i] = dwCrc; } + } +} + +inline void CalcCrc32(const unsigned char byte, unsigned long &crc32) +{ + crc32 = ((crc32) >> 8) ^ crc32Table[(byte) ^ ((crc32) & 0x000000FF)]; +} + + +unsigned long pa_crc32(const char *in, size_t in_size){ + unsigned long crc32=0xFFFFFFFF; + + InitCrc32Table(); + for(size_t i = 0; i(context); + if(finfo.st_size) { + InitCrc32Table(); + int nCount=0; + do { + unsigned char buffer[FILE_BUFFER_SIZE]; + nCount = file_block_read(f, buffer, sizeof(buffer)); + for(int i = 0; i < nCount; i++) CalcCrc32(buffer[i], crc32); + } while(nCount > 0); + } +} + +unsigned long pa_crc32(const String& file_spec){ + unsigned long crc32=0xFFFFFFFF; + file_read_action_under_lock(file_spec, "crc32", file_crc32_file_action, &crc32); + return ~crc32; +} + +// content-type: xxx; charset=WE-NEED-THIS +// content-type: xxx; charset="WE-NEED-THIS" +// content-type: xxx; charset="WE-NEED-THIS"; +Charset* detect_charset(const char* content_type){ + if(content_type){ + char* CONTENT_TYPE=str_upper(content_type); + + if(const char* begin=strstr(CONTENT_TYPE, "CHARSET=")){ + begin+=8; // skip "CHARSET=" + char* end=0; + if(*begin && (*begin=='"' || *begin =='\'')){ + char quote=*begin; + begin++; + end=(char*)strchr(begin, quote); + } + if(!end) + end=(char*)strchr(begin, ';'); + + if(end) + *end=0; // terminator + + return *begin ? &pa_charsets.get_direct(begin) : 0; + } + } + return 0; } +static bool is_latin(const char *in){ + for(; *in; in++){ + if ((unsigned char)(*in) > 0x7F) + return false; + } + return true; +} + +#define MAX_IDNA_LENGTH 256 + +const char *pa_idna_encode(const char *in, Charset &source_charset){ + if(!in || is_latin(in)) + return in; + + uint32_t utf32[MAX_IDNA_LENGTH]; + uint32_t *utf32_end=utf32; + + String::C sIn(in,strlen(in)); + + if(!source_charset.isUTF8()) + sIn=Charset::transcode(sIn, source_charset, pa_UTF8_charset); + + int status=pa_convertUTF8toUTF32((const UTF8**)&sIn.str, (const UTF8*)(sIn.str+sIn.length), &utf32_end, utf32+MAX_IDNA_LENGTH-1, strictConversion); + if(status != conversionOK) + throw Exception("idna encode", new String(in), "utf conversion failed (%d)", status); + + *utf32_end=0; + + char *result = (char *)pa_malloc(MAX_IDNA_LENGTH); + status=pa_idna_to_ascii_4z(utf32, result, MAX_IDNA_LENGTH, 0); + if(status != IDNA_SUCCESS) + throw Exception("idna encode", new String(in), "encode failed: %s", pa_idna_strerror(status)); + + return result; +} + +const char *pa_idna_decode(const char *in, Charset &asked_charset){ + if(!in || !(*in)) + return in; + + uint32_t utf32[MAX_IDNA_LENGTH]; + const uint32_t *utf32_start=utf32; + uint32_t *utf32_end; + + int status=pa_idna_to_unicode_4z(in, utf32, MAX_IDNA_LENGTH, 0); + if(status != IDNA_SUCCESS) + throw Exception("idna decode", new String(in), "decode failed: %s", pa_idna_strerror(status)); + + for(utf32_end=utf32; *utf32_end; utf32_end++); + + char *result = (char *)pa_malloc(MAX_IDNA_LENGTH); + char *result_end = result; + + status=pa_convertUTF32toUTF8(&utf32_start, utf32_end, (UTF8**)&result_end, (UTF8*)(result+MAX_IDNA_LENGTH-1), strictConversion); + + if(status != conversionOK) + throw Exception("idna decode", new String(in), "utf conversion failed (%d)", status); + + *result_end='\0'; + + if(!asked_charset.isUTF8()) + result = (char *)Charset::transcode(result, pa_UTF8_charset, asked_charset).cstr(); + + return result; +} /// must be last in this file #undef vsnprintf -int __vsnprintf(char* b, size_t s, const char* f, va_list l) { +int pa_vsnprintf(char* b, size_t s, const char* f, va_list l) { if(!s) return 0; int r; - // note: on win32& maybe somewhere else + // note: on win32 & maybe somewhere else // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing + // http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010 --s; -#if _MSC_VER - /* - win32: - mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm - if the number of bytes to write exceeds buffer, then count bytes are written and –1 is returned - */ + // clients do not check for negative 's', feature: ignore such prints + if((ssize_t)s<0) + return 0; + +#ifdef _MSC_VER + // win32: if the number of bytes to write exceeds buffer, then count bytes are written and -1 is returned r=_vsnprintf(b, s, f, l); if(r<0) r=s; #else r=vsnprintf(b, s, f, l); /* - solaris: - man vsnprintf + solaris: man vsnprintf - The snprintf() function returns the number of characters + The snprintf() function returns the number of characters formatted, that is, the number of characters that would have been written to the buffer if it were large enough. If the value of n is 0 on a call to snprintf(), an unspecified @@ -929,104 +1403,18 @@ int __vsnprintf(char* b, size_t s, const if(r<0) r=0; - else if(r>s) + else if((size_t)r>s) r=s; #endif b[r]=0; return r; } -int __snprintf(char* b, size_t s, const char* f, ...) { +int pa_snprintf(char* b, size_t s, const char* f, ...) { va_list l; - va_start(l, f); - int r=__vsnprintf(b, s, f, l); - va_end(l); + va_start(l, f); + int r=pa_vsnprintf(b, s, f, l); + va_end(l); return r; } -int pa_sleep(unsigned long secs, unsigned long usecs) { - for (; usecs >= 1000000; ++secs, usecs -= 1000000); - -#ifdef WIN32 - Sleep(secs * 1000 + usecs / 1000); - return 0; -#else - struct timeval t; - t.tv_sec = secs; - t.tv_usec = usecs; - return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0); -#endif -} - - -// attributed meaning - -static size_t date_attribute(const VDate& vdate, char *buf, size_t buf_size) { - const char month_names[12][4]={ - "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"}; - const char days[7][4]={ - "Sun","Mon","Tue","Wed","Thu","Fri","Sat"}; - - time_t when=vdate.get_time(); - struct tm *tms=gmtime(&when); - if(!tms) - throw Exception(0, - 0, - "bad time in attribute value (seconds from epoch=%ld)", when); - return snprintf(buf, MAX_STRING, "%s, %.2d-%s-%.4d %.2d:%.2d:%.2d GMT", - days[tms->tm_wday], - tms->tm_mday,month_names[tms->tm_mon],tms->tm_year+1900, - tms->tm_hour,tms->tm_min,tms->tm_sec); -} -static void append_attribute_meaning(String& result, - Value& value, String::Untaint_lang lang, bool forced) { - if(const String *string=value.get_string()) - result.append(string->join_chains(result.pool(), 0), lang, forced); - else - if(Value *vdate=value.as(VDATE_TYPE, false)) { - char *buf=(char *)result.malloc(MAX_STRING); - size_t size=date_attribute(*static_cast(vdate), - buf, MAX_STRING); - - result.APPEND_CLEAN(buf, size, "converted from date", 0); - } else - throw Exception("parser.runtime", - &result, - "trying to append here neither string nor date (%s)", - value.type()); -} -#ifndef DOXYGEN -struct Attributed_meaning_info { - String *header; // header line being constructed - String::Untaint_lang lang; // language in which to append to that line - bool forced; // do they force that lang? -}; -#endif -static void append_attribute_subattribute(const Hash::Key& akey, Hash::Val *avalue, - void *info) { - if(akey==VALUE_NAME) - return; - - Attributed_meaning_info& ami=*static_cast(info); - - // ...; charset=windows1251 - *ami.header << "; "; - ami.header->append(akey, ami.lang, ami.forced); - *ami.header << "="; - append_attribute_meaning(*ami.header, *static_cast(avalue), ami.lang, ami.forced); -} -const String& attributed_meaning_to_string(Value& meaning, - String::Untaint_lang lang, bool forced) { - String &result=*new(meaning.pool()) String(meaning.pool()); - if(Hash *hash=meaning.get_hash(0)) { - // $value(value) $subattribute(subattribute value) - if(Value *value=static_cast(hash->get(*value_name))) - append_attribute_meaning(result, *value, lang, forced); - - Attributed_meaning_info attributed_meaning_info={&result, lang}; - hash->for_each(append_attribute_subattribute, &attributed_meaning_info); - } else // result value - append_attribute_meaning(result, meaning, lang, forced); - - return result; -}