static bool
notRecentlyModified(TSession *const sessionP,
time_t const fileModTime) {
bool retval;
const char *imsHdr;
imsHdr = RequestHeaderValue(sessionP, "if-modified-since");
if (imsHdr) {
bool valid;
time_t datetime;
DateDecode(imsHdr, &valid, &datetime);
if (valid) {
if (MIN(fileModTime, sessionP->date) <= datetime)
retval = TRUE;
else
retval = FALSE;
} else
retval = FALSE;
} else
retval = FALSE;
return retval;
}
static abyss_bool
ServerFileHandler(TSession * const r,
char * const z,
time_t const fileModTime,
MIMEType * const mimeTypeP) {
const char * mediatype;
TFile file;
uint64_t filesize;
uint64_t start;
uint64_t end;
TDate date;
char * p;
TDate filedate;
mediatype = MIMETypeGuessFromFile2(mimeTypeP, z);
if (!FileOpen(&file,z,O_BINARY | O_RDONLY)) {
ResponseStatusErrno(r);
return TRUE;
}
fileDate(r, fileModTime, &filedate);
p = RequestHeaderValue(r, "if-modified-since");
if (p) {
if (DateDecode(p,&date)) {
if (DateCompare(&filedate, &date) <= 0) {
ResponseStatus(r, 304);
ResponseWrite(r);
return TRUE;
} else
r->ranges.size = 0;
}
}
filesize = FileSize(&file);
switch (r->ranges.size) {
case 0:
ResponseStatus(r, 200);
break;
case 1: {
abyss_bool decoded;
decoded = RangeDecode((char *)(r->ranges.item[0]), filesize,
&start, &end);
if (!decoded) {
ListFree(&(r->ranges));
ResponseStatus(r, 200);
break;
}
sprintf(z, "bytes %llu-%llu/%llu", start, end, filesize);
ResponseAddField(r, "Content-range", z);
ResponseContentLength(r, end - start + 1);
ResponseStatus(r, 206);
} break;
default:
ResponseContentType(r, "multipart/ranges; boundary=" BOUNDARY);
ResponseStatus(r, 206);
break;
}
if (r->ranges.size == 0) {
ResponseContentLength(r, filesize);
ResponseContentType(r, mediatype);
}
if (DateToString(&filedate, z))
ResponseAddField(r, "Last-Modified", z);
ResponseWrite(r);
if (r->request_info.method != m_head)
sendBody(r, &file, filesize, mediatype, start, end, z);
FileClose(&file);
return TRUE;
}
static abyss_bool
ServerDirectoryHandler(TSession * const r,
char * const z,
time_t const fileModTime,
MIMEType * const mimeTypeP) {
TList list;
abyss_bool text;
abyss_bool ascending;
uint16_t sort; /* 1=by name, 2=by date */
TPool pool;
TDate date;
const char * error;
uint16_t responseStatus;
TDate dirdate;
const char * imsHdr;
determineSortType(r->request_info.query, &ascending, &sort, &text, &error);
if (error) {
ResponseStatus(r,400);
xmlrpc_strfree(error);
return TRUE;
}
fileDate(r, fileModTime, &dirdate);
imsHdr = RequestHeaderValue(r, "If-Modified-Since");
if (imsHdr) {
if (DateDecode(imsHdr, &date)) {
if (DateCompare(&dirdate, &date) <= 0) {
ResponseStatus(r, 304);
ResponseWrite(r);
return TRUE;
}
}
}
if (!PoolCreate(&pool, 1024)) {
ResponseStatus(r, 500);
return TRUE;
}
generateListing(&list, z, r->request_info.uri,
&pool, &error, &responseStatus);
if (error) {
ResponseStatus(r, responseStatus);
xmlrpc_strfree(error);
PoolFree(&pool);
return TRUE;
}
/* Send something to the user to show that we are still alive */
ResponseStatus(r, 200);
ResponseContentType(r, (text ? "text/plain" : "text/html"));
if (DateToString(&dirdate, z))
ResponseAddField(r, "Last-Modified", z);
ResponseChunked(r);
ResponseWrite(r);
if (r->request_info.method!=m_head)
sendDirectoryDocument(&list, ascending, sort, text,
r->request_info.uri, mimeTypeP, r, z);
HTTPWriteEndChunk(r);
/* Free memory and exit */
ListFree(&list);
PoolFree(&pool);
return TRUE;
}
