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netsurf/amiga/filetype.c

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/*
* Copyright 2008, 2011 Chris Young <chris@unsatisfactorysoftware.co.uk>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include "amiga/filetype.h"
#include "amiga/object.h"
#include "content/fetch.h"
#include "content/content.h"
#include "utils/log.h"
#include "utils/utils.h"
#include <proto/icon.h>
#include <proto/dos.h>
#include <proto/datatypes.h>
#include <proto/exec.h>
#include <workbench/icon.h>
/**
* filetype -- determine the MIME type of a local file
*/
struct MinList *ami_mime_list = NULL;
struct ami_mime_entry
{
lwc_string *mimetype;
lwc_string *datatype;
lwc_string *filetype;
lwc_string *plugincmd;
};
enum
{
AMI_MIME_MIMETYPE,
AMI_MIME_DATATYPE,
AMI_MIME_FILETYPE,
AMI_MIME_PLUGINCMD
};
const char *fetch_filetype(const char *unix_path)
{
static char mimetype[50];
STRPTR ttype = NULL;
struct DiskObject *dobj = NULL;
BPTR lock = 0;
struct DataType *dtn;
BOOL found = FALSE;
lwc_string *lwc_mimetype;
/* First, check if we appear to have an icon.
We'll just do a filename check here for quickness, although the
first word ought to be checked against WB_DISKMAGIC really. */
if(strncmp(unix_path + strlen(unix_path) - 5, ".info", 5) == 0)
{
strcpy(mimetype,"image/x-amiga-icon");
found = TRUE;
}
/* Secondly try getting a tooltype "MIMETYPE" and use that as the MIME type.
Will fail over to default icons if the file doesn't have a real icon. */
if(!found)
{
if(dobj = GetIconTags(unix_path,ICONGETA_FailIfUnavailable,FALSE,
TAG_DONE))
{
ttype = FindToolType(dobj->do_ToolTypes, "MIMETYPE");
if(ttype)
{
strcpy(mimetype,ttype);
found = TRUE;
}
FreeDiskObject(dobj);
}
}
/* If that didn't work, use the MIME file and DataTypes */
if(!found)
{
if (lock = Lock (unix_path, ACCESS_READ))
{
if (dtn = ObtainDataTypeA (DTST_FILE, (APTR)lock, NULL))
{
if(ami_mime_from_datatype(dtn, &lwc_mimetype, NULL))
{
strcpy(mimetype, lwc_string_data(lwc_mimetype));
found = TRUE;
ReleaseDataType(dtn);
}
}
UnLock(lock);
}
}
/* Have a quick check for file extensions (inc RISC OS filetype).
* Makes detection a little more robust, and some of the redirects
* caused by links in the SVN tree prevent NetSurf from reading the
* MIME type from the icon (step two, above).
*/
if((!found) || (strcmp("text/plain", mimetype) == 0))
{
if((strncmp(unix_path + strlen(unix_path) - 4, ".css", 4) == 0) ||
(strncmp(unix_path + strlen(unix_path) - 4, ",f79", 4) == 0))
{
strcpy(mimetype,"text/css");
found = TRUE;
}
if((strncmp(unix_path + strlen(unix_path) - 4, ".htm", 4) == 0) ||
(strncmp(unix_path + strlen(unix_path) - 5, ".html", 5) == 0) ||
(strncmp(unix_path + strlen(unix_path) - 4, ",faf", 4) == 0))
{
strcpy(mimetype,"text/html");
found = TRUE;
}
if(strncmp(unix_path + strlen(unix_path) - 3, ".js", 3) == 0) {
strcpy(mimetype,"application/javascript");
found = TRUE;
}
}
if(!found) strcpy(mimetype,"text/plain"); /* If all else fails */
return mimetype;
}
const char *ami_content_type_to_file_type(content_type type)
{
switch(type)
{
case CONTENT_HTML:
return "html";
break;
case CONTENT_TEXTPLAIN:
return "ascii";
break;
case CONTENT_CSS:
return "css";
break;
case CONTENT_IMAGE:
return "picture";
break;
default:
return "project";
break;
}
}
nserror ami_mime_init(const char *mimefile)
{
lwc_string *type;
lwc_error lerror;
nserror error;
char buffer[256];
BPTR fh = 0;
struct RDArgs *rargs = NULL;
STRPTR template = "MIMETYPE/A,DT=DATATYPE/K,TYPE=DEFICON/K,CMD=PLUGINCMD/K";
long rarray[] = {0,0,0,0};
struct nsObject *node;
struct ami_mime_entry *mimeentry;
if(ami_mime_list == NULL)
ami_mime_list = NewObjList();
rargs = AllocDosObjectTags(DOS_RDARGS,TAG_DONE);
if(rargs == NULL) return NSERROR_NOMEM;
if(fh = FOpen(mimefile, MODE_OLDFILE, 0))
{
while(FGets(fh, (UBYTE *)&buffer, 256) != 0)
{
rargs->RDA_Source.CS_Buffer = (char *)&buffer;
rargs->RDA_Source.CS_Length = 256;
rargs->RDA_Source.CS_CurChr = 0;
rargs->RDA_DAList = NULL;
rargs->RDA_Buffer = NULL;
rargs->RDA_BufSiz = 0;
rargs->RDA_ExtHelp = NULL;
rargs->RDA_Flags = 0;
rarray[AMI_MIME_MIMETYPE] = 0;
rarray[AMI_MIME_DATATYPE] = 0;
rarray[AMI_MIME_FILETYPE] = 0;
rarray[AMI_MIME_PLUGINCMD] = 0;
if(ReadArgs(template, rarray, rargs))
{
node = AddObject(ami_mime_list, AMINS_MIME);
mimeentry = AllocVecTags(sizeof(struct ami_mime_entry), AVT_ClearWithValue, 0, TAG_DONE);
node->objstruct = mimeentry;
if(rarray[AMI_MIME_MIMETYPE])
{
lerror = lwc_intern_string((char *)rarray[AMI_MIME_MIMETYPE],
strlen((char *)rarray[AMI_MIME_MIMETYPE]), &mimeentry->mimetype);
if (lerror != lwc_error_ok)
return NSERROR_NOMEM;
}
if(rarray[AMI_MIME_DATATYPE])
{
lerror = lwc_intern_string((char *)rarray[AMI_MIME_DATATYPE],
strlen((char *)rarray[AMI_MIME_DATATYPE]), &mimeentry->datatype);
if (lerror != lwc_error_ok)
return NSERROR_NOMEM;
}
if(rarray[AMI_MIME_FILETYPE])
{
lerror = lwc_intern_string((char *)rarray[AMI_MIME_FILETYPE],
strlen((char *)rarray[AMI_MIME_FILETYPE]), &mimeentry->filetype);
if (lerror != lwc_error_ok)
return NSERROR_NOMEM;
}
if(rarray[AMI_MIME_PLUGINCMD])
{
lerror = lwc_intern_string((char *)rarray[AMI_MIME_PLUGINCMD],
strlen((char *)rarray[AMI_MIME_PLUGINCMD]), &mimeentry->plugincmd);
if (lerror != lwc_error_ok)
return NSERROR_NOMEM;
}
FreeArgs(rargs);
}
}
FClose(fh);
}
FreeDosObject(DOS_RDARGS, rargs);
}
void ami_mime_free(void)
{
ami_mime_dump();
FreeObjList(ami_mime_list);
}
void ami_mime_entry_free(struct ami_mime_entry *mimeentry)
{
if(mimeentry->mimetype) lwc_string_unref(mimeentry->mimetype);
if(mimeentry->datatype) lwc_string_unref(mimeentry->datatype);
if(mimeentry->filetype) lwc_string_unref(mimeentry->filetype);
if(mimeentry->plugincmd) lwc_string_unref(mimeentry->plugincmd);
}
/**
* Return next matching MIME entry
*
* \param search lwc_string to search for (or NULL for all)
* \param type of value being searched for (AMI_MIME_#?)
* \param start_node node to continue search (updated on exit)
* \return entry or NULL if no match
*/
struct ami_mime_entry *ami_mime_entry_locate(lwc_string *search,
int type, struct Node **start_node)
{
struct nsObject *node;
struct nsObject *nnode;
struct ami_mime_entry *mimeentry;
lwc_error lerror;
bool ret = false;
if(IsMinListEmpty(ami_mime_list)) return NULL;
if(*start_node)
{
node = (struct nsObject *)GetSucc(*start_node);
if(node == NULL) return NULL;
}
else
{
node = (struct nsObject *)GetHead((struct List *)ami_mime_list);
}
do
{
nnode=(struct nsObject *)GetSucc((struct Node *)node);
mimeentry = node->objstruct;
lerror = lwc_error_ok;
switch(type)
{
case AMI_MIME_MIMETYPE:
if(search != NULL)
lerror = lwc_string_isequal(mimeentry->mimetype, search, &ret);
else if(mimeentry->mimetype != NULL)
ret = true;
break;
case AMI_MIME_DATATYPE:
if(search != NULL)
lerror = lwc_string_isequal(mimeentry->datatype, search, &ret);
else if(mimeentry->datatype != NULL)
ret = true;
break;
case AMI_MIME_FILETYPE:
if(search != NULL)
lerror = lwc_string_isequal(mimeentry->filetype, search, &ret);
else if(mimeentry->filetype != NULL)
ret = true;
break;
case AMI_MIME_PLUGINCMD:
if(search != NULL)
lerror = lwc_string_isequal(mimeentry->plugincmd, search, &ret);
else if(mimeentry->plugincmd != NULL)
ret = true;
break;
}
if((lerror == lwc_error_ok) && (ret == true))
break;
}while(node=nnode);
*start_node = (struct Node *)node;
if(ret == true) return mimeentry;
else return NULL;
}
APTR ami_mime_guess_add_datatype(struct DataType *dt, lwc_string **lwc_mimetype)
{
struct nsObject *node;
char mimetype[100];
char *dt_name_lwr;
struct ami_mime_entry *mimeentry;
lwc_error lerror;
struct DataTypeHeader *dth = dt->dtn_Header;
char *p;
node = AddObject(ami_mime_list, AMINS_MIME);
mimeentry = AllocVecTags(sizeof(struct ami_mime_entry), AVT_ClearWithValue, 0, TAG_DONE);
node->objstruct = mimeentry;
lerror = lwc_intern_string(dth->dth_Name, strlen(dth->dth_Name), &mimeentry->datatype);
if (lerror != lwc_error_ok)
return NULL;
dt_name_lwr = strdup(dth->dth_Name);
if(dt_name_lwr == NULL) return NULL;
strlwr(dt_name_lwr);
p = dt_name_lwr;
while(*p != '\0')
{
if(*p == ' ') *p = '-';
if(*p == '/') *p = '-';
p++;
}
switch(dth->dth_GroupID)
{
case GID_TEXT:
case GID_DOCUMENT:
if(strcmp("ascii", dt_name_lwr)==0)
{
strcpy(mimetype,"text/plain");
}
else
{
sprintf(mimetype,"text/%s", dt_name_lwr);
}
break;
case GID_SOUND:
case GID_INSTRUMENT:
case GID_MUSIC:
sprintf(mimetype,"audio/%s", dt_name_lwr);
break;
case GID_PICTURE:
if(strcmp("sprite", dt_name_lwr)==0)
{
strcpy(mimetype,"image/x-riscos-sprite");
}
else
{
sprintf(mimetype,"image/%s", dt_name_lwr);
}
break;
case GID_ANIMATION:
case GID_MOVIE:
sprintf(mimetype,"video/%s", dt_name_lwr);
break;
case GID_SYSTEM:
default:
if(strcmp("directory", dt_name_lwr)==0)
{
strcpy(mimetype,"application/x-netsurf-directory");
}
else if(strcmp("binary", dt_name_lwr)==0)
{
strcpy(mimetype,"application/octet-stream");
}
else sprintf(mimetype,"application/%s", dt_name_lwr);
break;
}
lerror = lwc_intern_string(mimetype, strlen(mimetype), &mimeentry->mimetype);
if (lerror != lwc_error_ok)
return NULL;
*lwc_mimetype = mimeentry->mimetype;
lerror = lwc_intern_string(dt_name_lwr, strlen(dt_name_lwr), &mimeentry->filetype);
if (lerror != lwc_error_ok)
return NULL;
free(dt_name_lwr);
return node;
}
/**
* Return a MIME Type matching a DataType
*
* \param dt a DataType structure
* \param mimetype lwc_string to hold the MIME type
* \param start_node node to feed back in to continue search
* \return node or NULL if no match
*/
struct Node *ami_mime_from_datatype(struct DataType *dt,
lwc_string **mimetype, struct Node *start_node)
{
struct DataTypeHeader *dth;
struct Node *node;
struct ami_mime_entry *mimeentry;
lwc_string *dt_name;
lwc_error lerror;
if(dt == NULL) return NULL;
dth = dt->dtn_Header;
lerror = lwc_intern_string(dth->dth_Name, strlen(dth->dth_Name), &dt_name);
if (lerror != lwc_error_ok)
return NULL;
node = start_node;
mimeentry = ami_mime_entry_locate(dt_name, AMI_MIME_DATATYPE, &node);
lwc_string_unref(dt_name);
if(mimeentry != NULL)
{
*mimetype = mimeentry->mimetype;
return (struct Node *)node;
}
else
{
if(start_node == NULL)
{
/* If there are no matching entries in the file, guess */
return ami_mime_guess_add_datatype(dt, mimetype);
}
else
{
return NULL;
}
}
}
/**
* Return the DefIcons type matching a MIME type
*
* \param mimetype lwc_string MIME type
* \param filetype ptr to lwc_string to hold DefIcons type
* \param start_node node to feed back in to continue search
* \return node or NULL if no match
*/
struct Node *ami_mime_to_filetype(lwc_string *mimetype,
lwc_string **filetype, struct Node *start_node)
{
struct Node *node;
struct ami_mime_entry *mimeentry;
node = start_node;
mimeentry = ami_mime_entry_locate(mimetype, AMI_MIME_MIMETYPE, &node);
if(mimeentry != NULL)
{
*filetype = mimeentry->filetype;
return (struct Node *)node;
}
else
{
return NULL;
}
}
const char *ami_mime_content_to_filetype(struct hlcache_handle *c)
{
struct Node *node;
lwc_string *filetype;
lwc_string *mimetype;
mimetype = content_get_mime_type(c);
node = ami_mime_to_filetype(mimetype, &filetype, NULL);
if(node && (filetype != NULL))
return lwc_string_data(filetype);
else
return ami_content_type_to_file_type(content_get_type(c));
}
/**
* Return all MIME types containing a plugincmd
*
* \param mimetype ptr to lwc_string MIME type
* \param start_node node to feed back in to continue search
* \return node or NULL if no match
*/
struct Node *ami_mime_has_cmd(lwc_string **mimetype, struct Node *start_node)
{
struct Node *node;
struct ami_mime_entry *mimeentry;
node = start_node;
mimeentry = ami_mime_entry_locate(NULL, AMI_MIME_PLUGINCMD, &node);
if(mimeentry != NULL)
{
*mimetype = mimeentry->mimetype;
return (struct Node *)node;
}
else
{
return NULL;
}
}
/**
* Return the plugincmd matching a MIME type
*
* \param mimetype lwc_string MIME type
* \param plugincmd ptr to lwc_string to hold plugincmd
* \param start_node node to feed back in to continue search
* \return node or NULL if no match
*/
struct Node *ami_mime_to_plugincmd(lwc_string *mimetype,
lwc_string **plugincmd, struct Node *start_node)
{
struct Node *node;
struct ami_mime_entry *mimeentry;
node = start_node;
mimeentry = ami_mime_entry_locate(mimetype, AMI_MIME_MIMETYPE, &node);
if(mimeentry != NULL)
{
*plugincmd = mimeentry->plugincmd;
return (struct Node *)node;
}
else
{
return NULL;
}
}
lwc_string *ami_mime_content_to_cmd(struct hlcache_handle *c)
{
struct Node *node;
lwc_string *plugincmd;
lwc_string *mimetype;
mimetype = content_get_mime_type(c);
node = ami_mime_to_plugincmd(mimetype,
&plugincmd, NULL);
if(node && (plugincmd != NULL)) return plugincmd;
else return NULL;
}
/**
* Compare the MIME type of an hlcache_handle to a DefIcons type
*/
bool ami_mime_compare(struct hlcache_handle *c, const char *type)
{
bool ret = false;
lwc_error lerror;
lwc_string *filetype;
lwc_string *mime_filetype;
lwc_string *mime = content_get_mime_type(c);
if(ami_mime_to_filetype(mime, &mime_filetype, NULL) == NULL)
return false;
lerror = lwc_intern_string(type, strlen(type), &filetype);
if (lerror != lwc_error_ok)
return false;
lerror = lwc_string_isequal(filetype, mime_filetype, &ret);
if (lerror != lwc_error_ok)
return false;
lwc_string_unref(filetype);
return ret;
}
void ami_mime_dump(void)
{
struct Node *node = NULL;
struct ami_mime_entry *mimeentry;
while(mimeentry = ami_mime_entry_locate(NULL, AMI_MIME_MIMETYPE, &node))
{
LOG(("%s DT=\"%s\" TYPE=\"%s\" CMD=\"%s\"",
mimeentry->mimetype ? lwc_string_data(mimeentry->mimetype) : "",
mimeentry->datatype ? lwc_string_data(mimeentry->datatype) : "",
mimeentry->filetype ? lwc_string_data(mimeentry->filetype) : "",
mimeentry->plugincmd ? lwc_string_data(mimeentry->plugincmd) : ""));
};
}
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