зеркало из https://github.com/mozilla/gecko-dev.git
734 строки
16 KiB
C
734 строки
16 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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*
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* apple_double_encode.c
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* ---------------------
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*
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* The routines doing the Apple Double Encoding.
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*
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* 2aug95 mym Created.
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*
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*/
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#include "msg.h"
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#include "appledbl.h"
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#include "ad_codes.h"
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#ifdef XP_MAC
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extern int MK_UNABLE_TO_OPEN_TMP_FILE;
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extern int MK_MIME_ERROR_WRITING_FILE;
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#include <Errors.h>
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/*
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** Local Functions prototypes.
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*/
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PRIVATE int output64chunk( appledouble_encode_object* p_ap_encode_obj,
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int c1, int c2, int c3, int pads);
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PRIVATE int to64(appledouble_encode_object* p_ap_encode_obj,
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char *p,
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int in_size);
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PRIVATE int finish64(appledouble_encode_object* p_ap_encode_obj);
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#define BUFF_LEFT(p) ((p)->s_outbuff - (p)->pos_outbuff)
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/*
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** write_stream.
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*/
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int write_stream(
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appledouble_encode_object *p_ap_encode_obj,
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char *out_string,
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int len)
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{
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if (p_ap_encode_obj->pos_outbuff + len < p_ap_encode_obj->s_outbuff)
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{
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XP_MEMCPY(p_ap_encode_obj->outbuff + p_ap_encode_obj->pos_outbuff,
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out_string,
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len);
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p_ap_encode_obj->pos_outbuff += len;
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return noErr;
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}
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else
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{
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/*
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** If the buff doesn't have enough space, use the overflow buffer then.
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*/
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int s_len = p_ap_encode_obj->s_outbuff - p_ap_encode_obj->pos_outbuff;
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XP_MEMCPY(p_ap_encode_obj->outbuff + p_ap_encode_obj->pos_outbuff,
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out_string,
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s_len);
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XP_MEMCPY(p_ap_encode_obj->b_overflow + p_ap_encode_obj->s_overflow,
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out_string + s_len,
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p_ap_encode_obj->s_overflow += (len - s_len));
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p_ap_encode_obj->pos_outbuff += s_len;
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return errEOB;
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}
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}
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int fill_apple_mime_header(
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appledouble_encode_object *p_ap_encode_obj)
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{
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int status;
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char tmpstr[266];
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#if 0
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// strcpy(tmpstr, "Content-Type: multipart/mixed; boundary=\"-\"\n\n---\n");
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// status = write_stream(p_ap_encode_env,
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// tmpstr,
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// strlen(tmpstr));
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// if (status != noErr)
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// return status;
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sprintf(tmpstr,
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"Content-Type: multipart/appledouble; boundary=\"=\"; name=\"");
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status = write_stream(p_ap_encode_obj,
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tmpstr,
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strlen(tmpstr));
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if (status != noErr)
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return status;
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status = write_stream(p_ap_encode_obj,
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p_ap_encode_obj->fname,
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XP_STRLEN(p_ap_encode_obj->fname));
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if (status != noErr)
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return status;
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XP_SPRINTF(tmpstr,
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"\"\nContent-Disposition: inline; filename=\"%s\"\n\n\n--=\n",
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p_ap_encode_obj->fname);
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#endif
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XP_SPRINTF(tmpstr, "--%s"CRLF, p_ap_encode_obj->boundary);
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status = write_stream(p_ap_encode_obj,
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tmpstr,
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XP_STRLEN(tmpstr));
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return status;
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}
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int ap_encode_file_infor(
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appledouble_encode_object *p_ap_encode_obj)
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{
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CInfoPBRec cipbr;
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HFileInfo *fpb = (HFileInfo *)&cipbr;
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ap_header head;
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ap_entry entries[NUM_ENTRIES];
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ap_dates dates;
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short i;
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long comlen, procID;
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DateTimeRec cur_time;
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unsigned long cur_secs;
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IOParam vinfo;
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GetVolParmsInfoBuffer vp;
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DTPBRec dtp;
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char comment[256];
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Str63 fname;
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int status;
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strcpy((char *)fname+1,p_ap_encode_obj->fname);
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fname[0] = XP_STRLEN(p_ap_encode_obj->fname);
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fpb->ioNamePtr = fname;
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fpb->ioDirID = p_ap_encode_obj->dirId;
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fpb->ioVRefNum = p_ap_encode_obj->vRefNum;
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fpb->ioFDirIndex = 0;
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if (PBGetCatInfoSync(&cipbr) != noErr)
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{
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return errFileOpen;
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}
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/* get a file comment, if possible */
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procID = 0;
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GetWDInfo(p_ap_encode_obj->vRefNum, &fpb->ioVRefNum, &fpb->ioDirID, &procID);
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memset((void *) &vinfo, '\0', sizeof (vinfo));
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vinfo.ioCompletion = nil;
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vinfo.ioVRefNum = fpb->ioVRefNum;
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vinfo.ioBuffer = (Ptr) &vp;
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vinfo.ioReqCount = sizeof (vp);
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comlen = 0;
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if (PBHGetVolParmsSync((HParmBlkPtr) &vinfo) == noErr &&
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((vp.vMAttrib >> bHasDesktopMgr) & 1))
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{
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memset((void *) &dtp, '\0', sizeof (dtp));
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dtp.ioVRefNum = fpb->ioVRefNum;
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if (PBDTGetPath(&dtp) == noErr)
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{
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dtp.ioCompletion = nil;
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dtp.ioDTBuffer = (Ptr) comment;
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dtp.ioNamePtr = fpb->ioNamePtr;
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dtp.ioDirID = fpb->ioFlParID;
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if (PBDTGetCommentSync(&dtp) == noErr)
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comlen = dtp.ioDTActCount;
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}
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}
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/* write header */
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// head.magic = dfork ? APPLESINGLE_MAGIC : APPLEDOUBLE_MAGIC;
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head.magic = APPLEDOUBLE_MAGIC; /* always do apple double */
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head.version = VERSION;
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memset(head.fill, '\0', sizeof (head.fill));
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head.entries = NUM_ENTRIES - 1;
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status = to64(p_ap_encode_obj,
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(char *) &head,
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sizeof (head));
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if (status != noErr)
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return status;
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/* write entry descriptors */
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entries[0].offset = sizeof (head) + sizeof (ap_entry) * head.entries;
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entries[0].id = ENT_NAME;
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entries[0].length = *fpb->ioNamePtr;
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entries[1].id = ENT_FINFO;
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entries[1].length = sizeof (FInfo) + sizeof (FXInfo);
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entries[2].id = ENT_DATES;
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entries[2].length = sizeof (ap_dates);
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entries[3].id = ENT_COMMENT;
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entries[3].length = comlen;
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entries[4].id = ENT_RFORK;
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entries[4].length = fpb->ioFlRLgLen;
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entries[5].id = ENT_DFORK;
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entries[5].length = fpb->ioFlLgLen;
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/* correct the link in the entries. */
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for (i = 1; i < NUM_ENTRIES; ++i)
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{
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entries[i].offset = entries[i-1].offset + entries[i-1].length;
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}
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status = to64(p_ap_encode_obj,
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(char *) entries,
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sizeof (ap_entry) * head.entries);
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if (status != noErr)
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return status;
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/* write name */
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status = to64(p_ap_encode_obj,
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(char *) fpb->ioNamePtr + 1,
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*fpb->ioNamePtr);
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if (status != noErr)
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return status;
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/* write finder info */
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status = to64(p_ap_encode_obj,
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(char *) &fpb->ioFlFndrInfo,
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sizeof (FInfo));
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if (status != noErr)
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return status;
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status = to64(p_ap_encode_obj,
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(char *) &fpb->ioFlXFndrInfo,
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sizeof (FXInfo));
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if (status != noErr)
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return status;
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/* write dates */
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GetTime(&cur_time);
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DateToSeconds(&cur_time, &cur_secs);
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dates.create = fpb->ioFlCrDat + CONVERT_TIME;
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dates.modify = fpb->ioFlMdDat + CONVERT_TIME;
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dates.backup = fpb->ioFlBkDat + CONVERT_TIME;
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dates.access = cur_secs + CONVERT_TIME;
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status = to64(p_ap_encode_obj,
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(char *) &dates,
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sizeof (ap_dates));
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if (status != noErr)
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return status;
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/* write comment */
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if (comlen)
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{
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status = to64(p_ap_encode_obj,
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comment,
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comlen * sizeof(char));
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}
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/*
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** Get some help information on deciding the file type.
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*/
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if (fpb->ioFlFndrInfo.fdType == 'TEXT' || fpb->ioFlFndrInfo.fdType == 'text')
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{
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p_ap_encode_obj->text_file_type = true;
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}
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return status;
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}
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/*
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** ap_encode_header
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**
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** encode the file header and the resource fork.
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**
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*/
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int ap_encode_header(
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appledouble_encode_object* p_ap_encode_obj,
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XP_Bool firstime)
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{
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Str255 name;
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char rd_buff[256];
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short fileId;
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OSErr retval = noErr;
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int status;
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long inCount;
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if (firstime)
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{
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XP_STRCPY(rd_buff,
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"Content-Type: application/applefile\nContent-Transfer-Encoding: base64\n\n");
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status = write_stream(p_ap_encode_obj,
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rd_buff,
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strlen(rd_buff));
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if (status != noErr)
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return status;
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status = ap_encode_file_infor(p_ap_encode_obj);
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if (status != noErr)
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return status;
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/*
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** preparing to encode the resource fork.
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*/
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name[0] = strlen(p_ap_encode_obj->fname);
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strcpy((char *)name+1, p_ap_encode_obj->fname);
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if (HOpenRF(p_ap_encode_obj->vRefNum, p_ap_encode_obj->dirId,
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name, fsRdPerm,
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&p_ap_encode_obj->fileId) != noErr)
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{
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return errFileOpen;
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}
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}
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fileId = p_ap_encode_obj->fileId;
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while (retval == noErr)
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{
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if (BUFF_LEFT(p_ap_encode_obj) < 400)
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break;
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inCount = 256;
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retval = FSRead(fileId, &inCount, rd_buff);
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if (inCount)
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{
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status = to64(p_ap_encode_obj,
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rd_buff,
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inCount);
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if (status != noErr)
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return status;
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}
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}
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if (retval == eofErr)
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{
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FSClose(fileId);
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status = finish64(p_ap_encode_obj);
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if (status != noErr)
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return status;
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/*
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** write out the boundary
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*/
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XP_SPRINTF(rd_buff,
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CRLF"--%s"CRLF,
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p_ap_encode_obj->boundary);
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status = write_stream(p_ap_encode_obj,
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rd_buff,
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XP_STRLEN(rd_buff));
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if (status == noErr)
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status = errDone;
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}
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return status;
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}
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static void replace(char *p, int len, char frm, char to)
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{
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for (; len > 0; len--, p++)
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if (*p == frm) *p = to;
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}
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/* Description of the various file formats and their magic numbers */
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struct magic
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{
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char *name; /* Name of the file format */
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char *num; /* The magic number */
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int len; /* Length (0 means strlen(magicnum)) */
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};
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/* The magic numbers of the file formats we know about */
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static struct magic magic[] =
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{
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{ "image/gif", "GIF", 0 },
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{ "image/jpeg", "\377\330\377", 0 },
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{ "video/mpeg", "\0\0\001\263", 4 },
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{ "application/postscript", "%!", 0 },
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};
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static int num_magic = (sizeof(magic)/sizeof(magic[0]));
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static char *text_type = TEXT_PLAIN; /* the text file type. */
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static char *default_type = APPLICATION_OCTET_STREAM;
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/*
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* Determins the format of the file "inputf". The name
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* of the file format (or NULL on error) is returned.
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*/
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PRIVATE char *magic_look(char *inbuff, int numread)
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{
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int i, j;
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for (i=0; i<num_magic; i++)
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{
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if (magic[i].len == 0)
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magic[i].len = XP_STRLEN(magic[i].num);
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}
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for (i=0; i<num_magic; i++)
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{
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if (numread >= magic[i].len)
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{
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for (j=0; j<magic[i].len; j++)
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{
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if (inbuff[j] != magic[i].num[j]) break;
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}
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if (j == magic[i].len)
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return magic[i].name;
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}
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}
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return default_type;
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}
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/*
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** ap_encode_data
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**
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** ---------------
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**
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** encode on the data fork.
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**
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*/
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int ap_encode_data(
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appledouble_encode_object* p_ap_encode_obj,
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XP_Bool firstime)
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{
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Str255 name;
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char rd_buff[256];
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short fileId;
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OSErr retval = noErr;
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long in_count;
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int status;
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if (firstime)
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{
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char* magic_type;
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/*
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** preparing to encode the data fork.
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*/
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name[0] = XP_STRLEN(p_ap_encode_obj->fname);
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XP_STRCPY((char*)name+1, p_ap_encode_obj->fname);
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if (HOpen( p_ap_encode_obj->vRefNum,
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p_ap_encode_obj->dirId,
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name,
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fsRdPerm,
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&fileId) != noErr)
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{
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return errFileOpen;
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}
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p_ap_encode_obj->fileId = fileId;
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if (!p_ap_encode_obj->text_file_type)
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{
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OSErr err;
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FSSpec file_spec;
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char* path;
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Bool do_magic = true;
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/* First attempt to get the file's mime type via FE_FileType.
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If that fails, we'll do a "magic_look"
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*/
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err = FSMakeFSSpec(p_ap_encode_obj->vRefNum, p_ap_encode_obj->dirId, name, &file_spec);
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if (err == noErr)
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{
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path = my_PathnameFromFSSpec(&file_spec);
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if (path != NULL)
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{
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char* ignore;
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FE_FileType(path, &do_magic, &magic_type, &ignore);
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/*
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if we ended up with the default type, dispose of it
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so we can do a magic_look
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*/
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if (do_magic && magic_type)
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XP_FREE(magic_type);
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}
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}
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if (do_magic)
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{
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/*
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** do a smart check for the file type.
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*/
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in_count = 256;
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retval = FSRead(fileId, &in_count, rd_buff);
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magic_type = magic_look(rd_buff, in_count);
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/* don't forget to rewind the index to start point. */
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SetFPos(fileId, fsFromStart, 0L);
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}
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}
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else
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{
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magic_type = text_type; /* we already know it is a text type. */
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}
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/*
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** the data portion header information.
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*/
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XP_SPRINTF(rd_buff,
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"Content-Type: %s; name=\"%s\"" CRLF "Content-Transfer-Encoding: base64" CRLF "Content-Disposition: inline; filename=\"%s\""CRLF CRLF,
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magic_type,
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p_ap_encode_obj->fname,
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p_ap_encode_obj->fname);
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status = write_stream(p_ap_encode_obj,
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rd_buff,
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XP_STRLEN(rd_buff));
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if (status != noErr)
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return status;
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}
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|
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while (retval == noErr)
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{
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if (BUFF_LEFT(p_ap_encode_obj) < 400)
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break;
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in_count = 256;
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retval = FSRead(p_ap_encode_obj->fileId,
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&in_count,
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rd_buff);
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if (in_count)
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{
|
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/* replace(rd_buff, in_count, '\r', '\n'); */
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/* ** may be need to do character set conversion here for localization. ** */
|
|
status = to64(p_ap_encode_obj,
|
|
rd_buff,
|
|
in_count);
|
|
if (status != noErr)
|
|
return status;
|
|
}
|
|
}
|
|
|
|
if (retval == eofErr)
|
|
{
|
|
FSClose(p_ap_encode_obj->fileId);
|
|
|
|
status = finish64(p_ap_encode_obj);
|
|
if (status != noErr)
|
|
return status;
|
|
|
|
/* write out the boundary */
|
|
|
|
XP_SPRINTF(rd_buff,
|
|
CRLF"--%s--"CRLF CRLF,
|
|
p_ap_encode_obj->boundary);
|
|
|
|
status = write_stream(p_ap_encode_obj,
|
|
rd_buff,
|
|
XP_STRLEN(rd_buff));
|
|
|
|
if (status == noErr)
|
|
status = errDone;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static char basis_64[] =
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
|
/*
|
|
** convert the stream in the inbuff to 64 format and put it in the out buff.
|
|
** To make the life easier, the caller will responcable of the cheking of the outbuff's bundary.
|
|
*/
|
|
PRIVATE int
|
|
to64(appledouble_encode_object* p_ap_encode_obj,
|
|
char *p,
|
|
int in_size)
|
|
{
|
|
int status;
|
|
int c1, c2, c3, ct;
|
|
unsigned char *inbuff = (unsigned char*)p;
|
|
|
|
ct = p_ap_encode_obj->ct; /* the char count left last time. */
|
|
|
|
/*
|
|
** resume the left state of the last conversion.
|
|
*/
|
|
switch (p_ap_encode_obj->state64)
|
|
{
|
|
case 0:
|
|
p_ap_encode_obj->c1 = c1 = *inbuff ++;
|
|
if (--in_size <= 0)
|
|
{
|
|
p_ap_encode_obj->state64 = 1;
|
|
return noErr;
|
|
}
|
|
p_ap_encode_obj->c2 = c2 = *inbuff ++;
|
|
if (--in_size <= 0)
|
|
{
|
|
p_ap_encode_obj->state64 = 2;
|
|
return noErr;
|
|
}
|
|
c3 = *inbuff ++; --in_size;
|
|
break;
|
|
case 1:
|
|
c1 = p_ap_encode_obj->c1;
|
|
p_ap_encode_obj->c2 = c2 = *inbuff ++;
|
|
if (--in_size <= 0)
|
|
{
|
|
p_ap_encode_obj->state64 = 2;
|
|
return noErr;
|
|
}
|
|
c3 = *inbuff ++; --in_size;
|
|
break;
|
|
case 2:
|
|
c1 = p_ap_encode_obj->c1;
|
|
c2 = p_ap_encode_obj->c2;
|
|
c3 = *inbuff ++; --in_size;
|
|
break;
|
|
}
|
|
|
|
while (in_size >= 0)
|
|
{
|
|
status = output64chunk(p_ap_encode_obj,
|
|
c1,
|
|
c2,
|
|
c3,
|
|
0);
|
|
if (status != noErr)
|
|
return status;
|
|
|
|
ct += 4;
|
|
if (ct > 71)
|
|
{
|
|
status = write_stream(p_ap_encode_obj,
|
|
CRLF,
|
|
2);
|
|
if (status != noErr)
|
|
return status;
|
|
|
|
ct = 0;
|
|
}
|
|
|
|
if (in_size <= 0)
|
|
{
|
|
p_ap_encode_obj->state64 = 0;
|
|
break;
|
|
}
|
|
|
|
c1 = (int)*inbuff++;
|
|
if (--in_size <= 0)
|
|
{
|
|
p_ap_encode_obj->c1 = c1;
|
|
p_ap_encode_obj->state64 = 1;
|
|
break;
|
|
}
|
|
c2 = *inbuff++;
|
|
if (--in_size <= 0)
|
|
{
|
|
p_ap_encode_obj->c1 = c1;
|
|
p_ap_encode_obj->c2 = c2;
|
|
p_ap_encode_obj->state64 = 2;
|
|
break;
|
|
}
|
|
c3 = *inbuff++;
|
|
in_size--;
|
|
}
|
|
p_ap_encode_obj->ct = ct;
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
** clear the left base64 encodes.
|
|
*/
|
|
PRIVATE int
|
|
finish64(appledouble_encode_object* p_ap_encode_obj)
|
|
{
|
|
int status;
|
|
|
|
switch (p_ap_encode_obj->state64)
|
|
{
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
status = output64chunk(p_ap_encode_obj,
|
|
p_ap_encode_obj->c1,
|
|
0,
|
|
0,
|
|
2);
|
|
break;
|
|
case 2:
|
|
status = output64chunk(p_ap_encode_obj,
|
|
p_ap_encode_obj->c1,
|
|
p_ap_encode_obj->c2,
|
|
0,
|
|
1);
|
|
break;
|
|
}
|
|
status = write_stream(p_ap_encode_obj, CRLF, 2);
|
|
p_ap_encode_obj->state64 = 0;
|
|
p_ap_encode_obj->ct = 0;
|
|
return status;
|
|
}
|
|
|
|
PRIVATE int output64chunk(
|
|
appledouble_encode_object* p_ap_encode_obj,
|
|
int c1, int c2, int c3, int pads)
|
|
{
|
|
char tmpstr[32];
|
|
char *p = tmpstr;
|
|
|
|
*p++ = basis_64[c1>>2];
|
|
*p++ = basis_64[((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4)];
|
|
if (pads == 2)
|
|
{
|
|
*p++ = '=';
|
|
*p++ = '=';
|
|
}
|
|
else if (pads)
|
|
{
|
|
*p++ = basis_64[((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6)];
|
|
*p++ = '=';
|
|
}
|
|
else
|
|
{
|
|
*p++ = basis_64[((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6)];
|
|
*p++ = basis_64[c3 & 0x3F];
|
|
}
|
|
return write_stream(p_ap_encode_obj,
|
|
tmpstr,
|
|
p-tmpstr);
|
|
}
|
|
|
|
#endif /* if define XP_MAC */
|