diff options
Diffstat (limited to 'libmail/imaphandler.C')
| -rw-r--r-- | libmail/imaphandler.C | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/libmail/imaphandler.C b/libmail/imaphandler.C deleted file mode 100644 index b163917..0000000 --- a/libmail/imaphandler.C +++ /dev/null @@ -1,354 +0,0 @@ -/* -** Copyright 2002, Double Precision Inc. -** -** See COPYING for distribution information. -*/ -#include "imap.H" -#include "imaphandler.H" -#include <stdlib.h> -#include <string.h> -#include <ctype.h> - -using namespace std; - -////////////////////////////////////////////////////////////////////////// -// -// Tokenize server response -// - -int mail::imapHandlerStructured::process(mail::imap &imapAccount, string &buffer) -{ - string::iterator b=buffer.begin(); - string::iterator e=buffer.end(); - int cnt=0; - - errbuf=buffer; - - if (stringmode) // Collecting a string - { - string s=""; - - while (b != e) - { - if (*b == '"') - { - stringmode=0; - largestringsize=s.size(); - process(imapAccount, Token(STRING, s)); - return cnt+1; - } - - if (*b == '\\') - { - b++; - cnt++; - if (b == e) - break; - } - if (*b == '\n') - { - stringmode=0; - process(imapAccount, Token(EOL)); - imapAccount.uninstallHandler(this); - return cnt+1; - } - - if (s.length() < 10000) - s.append(&*b, 1); - ++b; - ++cnt; - } - return 0; - } - - if (largestringleft > 0) // Collecting {nnn}\r\n strings - { - size_t n=buffer.length(); - - if (n > largestringleft) - n=largestringleft; - - string buffer_cpy=buffer; - - buffer_cpy.erase(n); - - largestringleft -= n; - - setTimeout(); // Don't time me out just yet... - - if (wantLargeString()) - { - setTimeout(); - - if (!errormode) - { - if (largestringleft == 0) - process(imapAccount, Token(STRING, - buffer_cpy)); - else // More later... - process(imapAccount, Token(LARGESTRING, - buffer_cpy)); - } - return n; - } - - // Subclass is not prepared to handle {nnn}\r\n strings. - // For simplicity, they are converted to regular strings, - // but to guard against hostile servers truncate large - // strings at 8K - - stringbuffer += buffer_cpy; - - if (stringbuffer.length() > 8192) - stringbuffer.erase(8192); - - setTimeout(); - if (largestringleft == 0 && !errormode) - process(imapAccount, Token(STRING, stringbuffer)); - return n; - } - - while (b != e) - { - if (*b == '\n') - { - setTimeout(); - if (!donemode && !errormode) - process(imapAccount, Token(EOL)); - imapAccount.uninstallHandler(this); - return (cnt+1); - } - - if (unicode_isspace((unsigned char)*b)) - { - b++; - cnt++; - continue; - } - - if (*b == '{') // Possibly a large string? - { - size_t n=0; - - b++; - cnt++; - - for (;;) - { - if (b == e) - return 0; - - if (*b == '}') - { - b++; - cnt++; - if (b == e) - return 0; - - if (*b == '\r') - { - b++; - cnt++; - if (b == e) - return 0; - } - - if (*b != '\n') - break; - - b++; - cnt++; - - largestringsize=n; - largestringleft=n; - stringbuffer=""; - - if (donemode && !errormode) - { - error(imapAccount); - return cnt; - } - - setTimeout(); - if (!errormode && n == 0) - // Make sure we recognize a - // 0-length string - { - process(imapAccount, - Token(STRING, - stringbuffer)); - } - return cnt; - } - - if (!isdigit((int)(unsigned char)*b)) - break; - - n=n * 10 + (*b-'0'); - b++; - cnt++; - } - - if (!errormode) - error(imapAccount); - return cnt; - } - if (errormode) - // Recovering from an error, just eat input until \n. - { - b++; - cnt++; - continue; - } - - - if (donemode) - { - error(imapAccount); - continue; - } - - if (strchr("*()", *b) != NULL) - { - setTimeout(); - process(imapAccount, Token((int)(char)*b)); - return cnt+1; - } - - if (*b == '"') - { - stringmode=1; - return cnt+1; - } - -#define ATOMCHAR(c) ATOMCHAR2((int)(unsigned char)(c)) -#define ATOMCHAR2(c) ( (c) > ' ' && (c) != '"' && \ - (c) != '(' && (c) != ')' && \ - (c) != '{' && (c) != '%' && (c) != '*') - - if (ATOMCHAR(*b)) // ATOM - { - string s=""; - - s.append(&*b, 1); - b++; - cnt++; - - // Swallow up BODY[HEADER.FIELDS (list)] - - unsigned bracket_cnt=0; - - while (b != e) - { - if (bracket_cnt > 0) - { - if ( *b == '\n' || *b == '\r') - { - process(imapAccount, - Token(ATOM, s)); - return cnt; - } - - if (s.length() < 10000) - s.append(&*b, 1); - - if ( *b == ']' ) - { - if (--bracket_cnt == 0) - { - process(imapAccount, - Token(ATOM, s) - ); - return cnt+1; - } - } - ++b; - ++cnt; - - continue; - } - - if (!ATOMCHAR(*b)) - { - setTimeout(); - - if (strcasecmp(s.c_str(), "NIL") == 0) - process(imapAccount, Token(NIL)); - else - process(imapAccount, Token(ATOM, s)); - return cnt; - } - - if (*b == '[') - ++bracket_cnt; - - if (s.length() < 10000) - s.append(&*b, 1); - ++b; - ++cnt; - } - return (0); - } - - error(imapAccount); - return cnt+1; - } - - return cnt; -} - -bool mail::imapHandlerStructured::wantLargeString() -{ - return false; // The default, only some subclasses have large string - // handler code -} - -void mail::imapHandlerStructured::done() -{ - donemode=1; -} - -// -// Go into error recovery mode, eating input until next endofline - -void mail::imapHandlerStructured::error(mail::imap &imapAccount) -{ - if (errbuf.length() > 32) - { - errbuf.erase(32); - errbuf.append("..."); - } - - size_t p=errbuf.find('\n'); - - if (p < std::string::npos) - errbuf.erase(p); - - imapAccount.fatalError("IMAP reply parse failure: ... " + errbuf); - errormode=1; -} - - -mail::imapHandlerStructured::Token::operator string() -{ - switch ((enum TokenType)token) { - case EOL: - return "EOL"; - case ATOM: - return text; - case STRING: - case LARGESTRING: - return ( "STRING[" + text + "]"); - case NIL: - return ( "NIL" ); - } - - char c[4]; - - c[0]='\''; - c[1]=(char)token; - c[2]='\''; - c[3]=0; - - return c; -} |