#include <stdlib.h>
#include <string.h>
#include <microhttpd.h>
+#include <yajl/yajl_gen.h>
#include "database.h"
#include "tags.h"
#include "auth.h"
+#include "config.h"
#define URL_INFO_AUTHOR 0x1
#define URL_INFO_RECORD 0x2
int data_size;
};
+struct get_state {
+ struct blerg *b;
+ yajl_gen g;
+ unsigned int yoff;
+ uint64_t from;
+ uint64_t to;
+ int done;
+};
+
struct MHD_Response *response_401;
struct MHD_Response *response_404;
struct MHD_Response *response_405;
return ret;
}
+ssize_t GET_generate_list(void *cls, uint64_t pos, char *buf, size_t max) {
+ struct get_state *gs = cls;
+ const unsigned char *ybuf;
+ char *data;
+ unsigned int len;
+
+ if (gs->yoff > 0) {
+ yajl_gen_get_buf(gs->g, &ybuf, &len);
+ size_t bytes_remaining = len - gs->yoff;
+ if (bytes_remaining > max) {
+ memcpy(buf, ybuf + gs->yoff, max);
+ gs->yoff += max;
+ printf("generate list: gave %d bytes\n", max);
+ return max;
+ } else {
+ memcpy(buf, ybuf + gs->yoff, bytes_remaining);
+ gs->yoff = 0;
+ yajl_gen_clear(gs->g);
+ printf("generate list: gave %d bytes\n", bytes_remaining);
+ return bytes_remaining;
+ }
+ }
+
+ if (gs->done)
+ return -1;
+
+ if (pos == 0) { /* Start iterating */
+ gs->yoff = 0;
+ yajl_gen_array_open(gs->g);
+ uint64_t record_count = blerg_get_record_count(gs->b);
+ if (record_count == 0) {
+ gs->from = 1;
+ gs->to = 0;
+ } else {
+ gs->to = record_count - 1;
+ gs->from = (record_count > 50 ? gs->to - 49 : 0);
+ }
+ }
+
+ if (gs->from > gs->to) { /* Done iterating */
+ yajl_gen_array_close(gs->g);
+ gs->done = 1;
+ } else {
+ /* Snarf one record */
+ blerg_fetch(gs->b, gs->from, &data, &len);
+ yajl_gen_string(gs->g, data, len);
+ free(data);
+ gs->from++;
+ }
+
+
+ yajl_gen_get_buf(gs->g, &ybuf, &len);
+ printf("%d bytes in yajl buffer\n", len);
+ if (len > max) {
+ memcpy(buf, ybuf, max);
+ gs->yoff = max;
+ printf("generate list: gave %d bytes\n", max);
+ return max;
+ } else {
+ memcpy(buf, ybuf, len);
+ yajl_gen_clear(gs->g);
+ printf("generate list: gave %d bytes\n", len);
+ return len;
+ }
+}
+
+void GET_generate_list_free(void *cls) {
+ struct get_state *gs = cls;
+
+ blerg_close(gs->b);
+ yajl_gen_free(gs->g);
+ free(gs);
+}
+
int POST_create_iterator(void *cls, enum MHD_ValueKind kind, const char *key, const char *filename, const char *content_type, const char *transfer_encoding, const char *data, uint64_t off, size_t size) {
struct create_state *cs = cls;
struct put_state *ps = cls;
if (strncmp(key, "data", 5) == 0) {
- ps->data_size = size;
- ps->data = malloc(size);
- memcpy(ps->data, data, size);
- return MHD_NO;
+ if (ps->data == NULL) {
+ ps->data_size = size;
+ ps->data = malloc(size);
+ } else {
+ if (ps->data_size + size > MAX_RECORD_SIZE) {
+ size = MAX_RECORD_SIZE - ps->data_size;
+ }
+ ps->data_size += size;
+ ps->data = realloc(ps->data, ps->data_size);
+ }
+ printf("Copying %d bytes, total size %d\n", size, ps->data_size);
+ memcpy(ps->data + off, data, size);
+ if (ps->data_size == MAX_RECORD_SIZE)
+ return MHD_NO;
}
return MHD_YES;
char *data;
if (strncmp(url, "/get", 4) == 0 && strlen(url) > 4) {
- if (strcmp(method, MHD_HTTP_METHOD_GET) != 0)
- return MHD_NO;
+ if (*ptr == NULL) {
+ if (strcmp(method, MHD_HTTP_METHOD_GET) != 0)
+ return respond_405(connection);
+
+ *ptr = (void *) 1;
+ return MHD_YES;
+ }
+
if (url[4] != '/')
return respond_404(connection);
+
ret = parse_url_info(url + 5, author, &record);
if ((ret & URL_INFO_AUTHOR) == 0)
return respond_404(connection);
if (!blerg_exists(author))
return respond_404(connection);
+ *ptr == NULL;
+
if (ret & URL_INFO_RECORD) {
- if (*ptr == NULL) {
- *ptr = (void *) 1;
- return MHD_YES;
- } else {
- *ptr == NULL;
-
- struct blerg *b = blerg_open(author);
- ret = blerg_fetch(b, record, &data, &len);
- blerg_close(b);
-
- if (ret == 0) {
- return respond_404(connection);
- } else {
- response = MHD_create_response_from_data(len, data, MHD_YES, MHD_NO);
- ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
- }
- MHD_destroy_response(response);
- return ret;
- }
- } else {
- if (*ptr == NULL) {
- *ptr = (void*) 1;
- return MHD_YES;
+ struct blerg *b = blerg_open(author);
+ ret = blerg_fetch(b, record, &data, &len);
+ blerg_close(b);
+
+ if (ret == 0) {
+ return respond_404(connection);
} else {
- *ptr == NULL;
- response = MHD_create_response_from_data(strlen(DERP), DERP, MHD_NO, MHD_NO);
+ response = MHD_create_response_from_data(len, data, MHD_YES, MHD_NO);
ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
- MHD_destroy_response(response);
- return ret;
}
+ MHD_destroy_response(response);
+ return ret;
+ } else {
+ yajl_gen_config c;
+ c.beautify = 0;
+
+ struct get_state *gs = malloc(sizeof(struct get_state));
+ gs->b = blerg_open(author);
+ gs->g = yajl_gen_alloc(&c, NULL);
+ gs->yoff = 0;
+ gs->done = 0;
+
+ response = MHD_create_response_from_callback(-1, 262144, &GET_generate_list, gs, &GET_generate_list_free);
+ ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+ MHD_destroy_response(response);
+
+ return ret;
}
} else if (strncmp(url, "/put", 4) == 0) {
struct put_state *ps = (struct put_state *) *ptr;
struct put_state *ps = malloc(sizeof(struct put_state));
ps->data = NULL;
- ps->pp = MHD_create_post_processor(connection, 4096, &POST_put_iterator, ps);
+ ps->data_size = 0;
+ ps->pp = MHD_create_post_processor(connection, 16384, &POST_put_iterator, ps);
*ptr = ps;
return MHD_YES;
}
projects / blerg.git / blobdiff