nserror amiga_dt_picture_init(void) { char dt_mime[50]; struct DataType *dt, *prevdt = NULL; lwc_string *type; lwc_error lerror; nserror error; BPTR fh = 0; struct Node *node = NULL; while((dt = ObtainDataType(DTST_RAM, NULL, DTA_DataType, prevdt, DTA_GroupID, GID_PICTURE, // we only support images for now TAG_DONE)) != NULL) { ReleaseDataType(prevdt); prevdt = dt; do { node = ami_mime_from_datatype(dt, &type, node); if(node) { error = content_factory_register_handler( lwc_string_data(type), &amiga_dt_picture_content_handler); if (error != NSERROR_OK) return error; } }while (node != NULL); } ReleaseDataType(prevdt); return NSERROR_OK; }
char *amiga_dt_picture_datatype(struct content *c) { const uint8 *data; ULONG size; struct DataType *dt; char *filetype = NULL; data = (uint8 *)content__get_source_data(c, &size); if(dt = ObtainDataType(DTST_MEMORY, NULL, DTA_SourceAddress, data, DTA_SourceSize, size, DTA_GroupID, GID_PICTURE, TAG_DONE)) { filetype = strdup(dt->dtn_Header->dth_Name); ReleaseDataType(dt); } if(filetype == NULL) filetype = strdup("DataTypes"); return filetype; }
const char *fetch_filetype(const char *unix_path) { static char mimetype[50]; STRPTR ttype = NULL; struct DiskObject *dobj = NULL; BPTR lock = 0; struct DataTypeHeader *dth = NULL; struct DataType *dtn; BOOL found = FALSE; /* First 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(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, have a go at guessing it using datatypes.library. This isn't accurate - the base names differ from those used by MIME and it relies on the user having a datatype installed which can handle the file. */ if(!found) { if (lock = Lock (unix_path, ACCESS_READ)) { if (dtn = ObtainDataTypeA (DTST_FILE, (APTR)lock, NULL)) { dth = dtn->dtn_Header; switch(dth->dth_GroupID) { case GID_SYSTEM: sprintf(mimetype,"application/%s",dth->dth_BaseName); break; case GID_TEXT: case GID_DOCUMENT: if(strcmp("ascii",dth->dth_BaseName)==0) { sprintf(mimetype,"text/plain",dth->dth_BaseName); } else if(strcmp("simplehtml",dth->dth_BaseName)==0) { sprintf(mimetype,"text/html",dth->dth_BaseName); } else { sprintf(mimetype,"text/%s",dth->dth_BaseName); } break; case GID_SOUND: case GID_INSTRUMENT: case GID_MUSIC: sprintf(mimetype,"audio/%s",dth->dth_BaseName); break; case GID_PICTURE: sprintf(mimetype,"image/%s",dth->dth_BaseName); break; case GID_ANIMATION: case GID_MOVIE: sprintf(mimetype,"video/%s",dth->dth_BaseName); break; } found = TRUE; ReleaseDataType(dtn); } UnLock(lock); } } if(!found) strcpy(mimetype,"text/html"); /* If all else fails */ //printf("%s: %s\n",unix_path,mimetype); return mimetype; }