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#include "Glob.h"
/* MIME type/ext map */
ContentTypeDB MIME = nullptr;
/* Default Mime type when recognition fails */
char DefaultMime[] = "application/octet-stream";
int bInitMimeHandling()
{
FILE *mimeDB;
char line[LINE_MAX_SIZE];
char *tok = nullptr;
ContentType *pDBCell = nullptr;
ContentTypeDB pDB = nullptr;
ExtensionList extListCur = nullptr;
ExtensionListCell *pExtCell = nullptr;
char szBuf[10000];
mir_strcpy(szBuf, szPluginPath);
mir_strcat(szBuf, szMimeTypeConfigFile);
mimeDB = fopen(szBuf, "r");
if (mimeDB != nullptr) {
while (fgets(line, LINE_MAX_SIZE, mimeDB)) {
/*filter junk lines assuming Mime type start with letter
(convention ?) */
if ((line[0] <= 'z' && line[0] >= 'a')
|| (line[0] <= 'Z' && line[0] >= 'A')) {
/*remove comments trailing comments*/
tok = strrchr(line, '#');
if (tok != nullptr) {
*tok = '\0';
}
/* remove trailing \n */
int lenght = (int)mir_strlen(line);
if (lenght > 0 && line[lenght - 1] == '\n')
line[lenght - 1] = '\0';
/* first token = mime type */
tok = (char*)strtok(line, " \t");
/*create and fill a cell*/
pDBCell = (ContentType*)malloc(sizeof(ContentType));
pDBCell->mimeType = (char*)malloc(mir_strlen(tok) + 1);
mir_strcpy(pDBCell->mimeType, tok);
pDBCell->extList = nullptr;
pDBCell->next = nullptr;
/* looking for extensions */
tok = (char*)strtok(nullptr, " \t");
while (tok != nullptr) {
/*create and fill a cell*/
pExtCell = (ExtensionListCell*)malloc(sizeof(ExtensionListCell));
pExtCell->ext = (char*)malloc(mir_strlen(tok) + 1);
mir_strcpy(pExtCell->ext, tok);
pExtCell->next = nullptr;
/*link*/
if (pDBCell->extList == nullptr) {
pDBCell->extList = pExtCell;
}
else {
extListCur->next = pExtCell;
}
extListCur = pExtCell;
tok = (char*)strtok(nullptr, " \t");
}
/* link */
if (pDBCell->extList != nullptr) { /*extension(s) found*/
if (MIME == nullptr) {
MIME = pDBCell;
}
else {
pDB->next = pDBCell;
}
pDB = pDBCell;
}
else { /*no extension found, freeing memory*/
free(pDBCell->mimeType);
free(pDBCell);
}
}
}
fclose(mimeDB);
}
if (MIME == nullptr) {
return 0;
}
return 1;
}
const char* pszGetMimeType(const char * pszFileName)
{
ContentTypeDB courMIME;
ExtensionList courEXT;
const char* ext;
ext = strrchr(pszFileName, '.');
if (ext != nullptr) {
if (ext[1] == '\0') {
/*empty extension */
return DefaultMime;
}
else {
/*remove the "."*/
ext = ext + 1;
}
courMIME = MIME;
while (courMIME != nullptr) {
courEXT = courMIME->extList;
while (courEXT != nullptr) {
if (!_stricmp(courEXT->ext, ext)) {
return courMIME->mimeType;
}
courEXT = courEXT->next;
}
courMIME = courMIME->next;
}
/*extension unknown*/
return DefaultMime;
}
else {
/*no extension*/
return DefaultMime;
}
}
#ifdef TEST
void printDB()
{
ContentTypeDB courMIME;
ExtensionList courEXT;
courMIME = MIME;
while (courMIME != NULL) {
printf("%s", courMIME->mimeType);
courEXT = courMIME->extList;
while (courEXT != NULL) {
printf(" %s", courEXT->ext);
courEXT = courEXT->next;
}
courMIME = courMIME->next;
printf("\n");
}
}
int main(int argc, char* argv[])
{
bInitMimeHandling();
printDB();
printf("%s\n", pszGetMimeType(argv[1]));
return 0;
}
#endif
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