#include "webcit.h"
-struct uploaded_file {
- char id[64];
- char filename[256];
- char content_type[256];
- long length;
- FILE *fp;
-};
-
Array *upload_list = NULL; // all files uploaded to this webcit instance
pthread_mutex_t upload_list_mutex = PTHREAD_MUTEX_INITIALIZER; // Lock it before modifying
syslog(LOG_DEBUG, " length: %ld", length);
syslog(LOG_DEBUG, " encoding: %s", encoding);
syslog(LOG_DEBUG, " id: %s", cbid);
+ //fprintf(stderr, "\033[31m--------------------------------------------\n");
+ //write(content, length, 1, stderr); // FIXME
+ //printf(stderr, "--------------------------------------------\033[0m\n");
struct uploaded_file u;
- generate_uuid(u.id);
+
+ // create a random ID for the attachment
+ for (int i=0; i<sizeof(u.id); ++i) {
+ u.id[i] = (rand() % 26) + 'a';
+ }
+ u.id[sizeof(u.id)-1] = 0;
+
safestrncpy(u.filename, filename, sizeof(u.filename));
safestrncpy(u.content_type, cbtype, sizeof(u.content_type));
u.length = length;
// Write the upload to a file that we can access later when the user saves the message.
+ // tmpfile() creates a file with zero links in the directory, so it will be deleted when it is closed.
u.fp = tmpfile();
if (!u.fp) {
syslog(LOG_ERR, "upload: %m");
return;
}
- fwrite(content, length, 1, u.fp); // this file will be deleted by the OS when it is closed
+ if (fwrite(content, length, 1, u.fp) != 1) {
+ syslog(LOG_ERR, "upload: %m");
+ fclose(u.fp);
+ return;
+ }
+
+ // Add it to the list of uploads the server is holding.
+ pthread_mutex_lock(&upload_list_mutex);
+ if (upload_list == NULL) {
+ upload_list = array_new(sizeof(struct uploaded_file));
+ }
+ array_append(upload_list, &u);
+ pthread_mutex_unlock(&upload_list_mutex);
+
+ for (int i=0; i<array_len(upload_list); ++i) {
+ memcpy(&u, array_get_element_at(upload_list, i), sizeof(struct uploaded_file));
+ syslog(LOG_DEBUG, "%d: %s %s", i, u.id, u.filename);
+ }
// Create a JSON object describing this upload
JsonValue *j_one_upload = NewJsonObject(HKEY(""));
// Normally the browser will upload only one file per transaction, but that behavior is not guaranteed.
JsonValue *j_uploads = NewJsonArray(HKEY(""));
- // h->request_body will contain the upload(s) in MIME format
- mime_parser(h->request_body, (h->request_body + h->request_body_length), *upload_handler, NULL, NULL, j_uploads, 0);
+ // h->request_body_with_synth_headers will contain the upload(s) in MIME format including headers
+ mime_parser(h->request_body_with_synth_headers, (h->request_body+h->request_body_length), *upload_handler, NULL, NULL, j_uploads, 0);
// probably do something more clever here
h->response_code = 200;
}
+// Caller has requested /ctdl/p or /ctdl/p/ but we still have to dispatch based on the method
+void ctdl_p_base(struct http_transaction *h, struct ctdlsession *c) {
+ upload_files(h, c); // we should only do this for POST requests
+}
+
+
+// delete an uploaded item
+void delete_upload(struct uploaded_file this_one) {
+ int i;
+ struct uploaded_file *u;
+
+ pthread_mutex_lock(&upload_list_mutex);
+ for (i=0; i<array_len(upload_list); ++i) {
+ u = (struct uploaded_file *) array_get_element_at(upload_list, i), sizeof(struct uploaded_file);
+ if (!strcmp(u->id, this_one.id)) {
+ fclose(u->fp); // this deletes the file because it has 0 links
+ array_delete_element_at(upload_list, i);
+ i = array_len(upload_list) + 1; // Go out of scope; we're done here
+ }
+ }
+ pthread_mutex_unlock(&upload_list_mutex);
+}
+
+
+// DAV delete an uploaded item
+void dav_delete_upload(struct http_transaction *h, struct ctdlsession *c, struct uploaded_file this_one) {
+ delete_upload(this_one);
+ do_204(h);
+}
+
+
+// Remove an uploaded item from the upload_list. Caller now owns the file handle and is responsible for closing it.
+struct uploaded_file pop_upload(char *id) {
+ int i;
+ struct uploaded_file *u;
+ struct uploaded_file ret;
+
+ memset(&ret, 0, sizeof(struct uploaded_file));
+
+ pthread_mutex_lock(&upload_list_mutex);
+ for (i=0; i<array_len(upload_list); ++i) {
+ u = (struct uploaded_file *) array_get_element_at(upload_list, i), sizeof(struct uploaded_file);
+ if (!strcmp(u->id, id)) {
+ ret = *u;
+ array_delete_element_at(upload_list, i);
+ i = array_len(upload_list) + 1; // Go out of scope; we're done here
+ }
+ }
+ pthread_mutex_unlock(&upload_list_mutex);
+
+ return(ret); // ret will be all-zeroes if we didn't find it
+}
+
+
+// Handle operations on a specific upload
+void specific_upload(struct http_transaction *h, struct ctdlsession *c, char *name) {
+ int i;
+ struct uploaded_file *u;
+ struct uploaded_file this_one;
+
+ if (upload_list == NULL) {
+ do_404(h);
+ return;
+ }
+
+ memset(&this_one, 0, sizeof(struct uploaded_file));
+ pthread_mutex_lock(&upload_list_mutex);
+ for (i=0; i<array_len(upload_list); ++i) {
+ u = (struct uploaded_file *) array_get_element_at(upload_list, i), sizeof(struct uploaded_file);
+ if (!strcmp(u->id, name)) {
+ memcpy(&this_one, u, sizeof(struct uploaded_file));
+ i = array_len(upload_list) + 1; // Go out of scope; we're done here
+ }
+ }
+ pthread_mutex_unlock(&upload_list_mutex);
+
+ // If we found a matching ID, now dispatch based on the HTTP method.
+
+ if (IsEmptyStr(this_one.id)) { // didn't find a match
+ do_404(h);
+ }
+ else if (!strcasecmp(h->method, "GET")) { // fetch the item
+ do_405(h);
+ }
+ else if (!strcasecmp(h->method, "DELETE")) { // delete the item
+ dav_delete_upload(h, c, this_one);
+ }
+ else { // unsupported method
+ do_405(h);
+ }
+}
+
+
// Dispatcher for paths starting with /ctdl/p/
void ctdl_p(struct http_transaction *h, struct ctdlsession *c) {
- if (!strcasecmp(h->url, "/ctdl/p/")) { // upload files
- upload_files(h, c);
+ char buf[SIZ];
+
+ if (num_tokens(h->url, '/') == 3) { // /ctdl/p
+ ctdl_p_base(h, c);
+ return;
+ }
+
+ extract_token(buf, h->url, 3, '/', sizeof buf);
+ if (num_tokens(h->url, '/') == 4) {
+ if (IsEmptyStr(buf)) {
+ ctdl_p_base(h, c); // /ctdl/p/
+ }
+ else {
+ specific_upload(h, c, &h->url[8]);
+ }
return;
}
- do_404(h); // unknown
+ // If we get to this point, the client requested an action we don't know how to perform.
+ do_404(h);
}