#include "http.h"
#include "config.h"
-#define URL_INFO_AUTHOR 0x1
-#define URL_INFO_RECORD 0x2
+#define URL_INFO_AUTHOR 0x1
+#define URL_INFO_RECORD 0x2
+#define URL_INFO_RECORD_TO 0x4
#define DERP "DERP DERP DERP"
yajl_gen_config yajl_c = { 0, 0 };
int done;
};
-int parse_url_info(const char *url, char *author, uint64_t *record) {
+struct tag_state {
+ yajl_gen g;
+ unsigned int yoff;
+ struct tag *results;
+ uint64_t i;
+ int done;
+};
+
+int parse_url_info(const char *url, struct url_info *info) {
const char *c;
- int ret = 0;
int len;
+ info->contents = 0;
c = strchr(url, '/');
if (c == NULL) {
}
if (len == 0)
return 0;
- memcpy(author, url, len);
- author[len] = 0;
- ret |= URL_INFO_AUTHOR;
+ memcpy(info->author, url, len);
+ info->author[len] = 0;
+ info->contents |= URL_INFO_AUTHOR;
- if (c != NULL && c[1] != 0) {
- *record = strtoull(c + 1, NULL, 10);
- ret |= URL_INFO_RECORD;
- }
+ if (c == NULL || c[1] == 0)
+ return info->contents;
- return ret;
+ info->record = strtoull(c + 1, NULL, 10);
+ info->contents |= URL_INFO_RECORD;
+
+ c = strchr(c, '-');
+ if (c == NULL || c[1] == 0)
+ return info->contents;
+
+ info->record_to = strtoull(c + 1, NULL, 10);
+ info->contents |= URL_INFO_RECORD_TO;
+
+ return info->contents;
}
uint64_t *make_sequential_list(uint64_t from, uint64_t to) {
return list;
}
+void json_generate_one_record(yajl_gen g, const char *author, struct blerg *b, uint64_t record) {
+ char *data;
+ char number[21];
+ int len;
+
+ if (!blerg_fetch(b, record, &data, &len)) {
+ fprintf(stderr, "Could not fetch record\n");
+ return;
+ }
+
+ yajl_gen_map_open(g);
+ if (author != NULL) {
+ yajl_gen_string(g, "author", 6);
+ yajl_gen_string(g, author, strlen(author));
+ }
+ yajl_gen_string(g, "record", 6);
+ snprintf(number, 21, "%llu", record);
+ yajl_gen_string(g, number, strlen(number));
+ yajl_gen_string(g, "timestamp", 9);
+ yajl_gen_integer(g, blerg_get_timestamp(b, record));
+ yajl_gen_string(g, "data", 4);
+ yajl_gen_string(g, data, len);
+ yajl_gen_map_close(g);
+
+ free(data);
+}
+
ssize_t GET_generate_list(void *cls, uint64_t pos, char *buf, size_t max) {
struct get_state *gs = cls;
const unsigned char *ybuf;
}
/* Snarf one record */
- blerg_fetch(gs->b, gs->entries[gs->i], &data, &len);
+ json_generate_one_record(gs->g, NULL, gs->b, gs->entries[gs->i]);
- yajl_gen_map_open(gs->g);
- yajl_gen_string(gs->g, "record", 6);
- snprintf(number, 21, "%llu", gs->entries[gs->i]);
- yajl_gen_string(gs->g, number, strlen(number));
- yajl_gen_string(gs->g, "data", 4);
- yajl_gen_string(gs->g, data, len);
- yajl_gen_map_close(gs->g);
-
- free(data);
if (gs->i == 0) {
yajl_gen_array_close(gs->g);
gs->done = 1;
free(gs);
}
+ssize_t GET_generate_taglist(void *cls, uint64_t pos, char *buf, size_t max) {
+ struct tag_state *ts = cls;
+ struct blerg *b;
+ const unsigned char *ybuf;
+ unsigned int len;
+
+ if (ts->yoff > 0) {
+ yajl_gen_get_buf(ts->g, &ybuf, &len);
+ size_t bytes_remaining = len - ts->yoff;
+ if (bytes_remaining > max) {
+ memcpy(buf, ybuf + ts->yoff, max);
+ ts->yoff += max;
+ return max;
+ } else {
+ memcpy(buf, ybuf + ts->yoff, bytes_remaining);
+ ts->yoff = 0;
+ yajl_gen_clear(ts->g);
+ return bytes_remaining;
+ }
+ }
+
+ if (ts->done)
+ return -1;
+
+ if (pos == 0) { /* Start iterating */
+ yajl_gen_array_open(ts->g);
+ }
+
+ /* Snarf one record */
+ b = blerg_open(ts->results[ts->i].author);
+ if (b == NULL)
+ goto skip_bad_blerg;
+
+ json_generate_one_record(ts->g, ts->results[ts->i].author, b, ts->results[ts->i].record);
+
+ blerg_close(b);
+
+skip_bad_blerg:
+ if (ts->i == 0) {
+ yajl_gen_array_close(ts->g);
+ ts->done = 1;
+ }
+
+ ts->i--;
+
+ yajl_gen_get_buf(ts->g, &ybuf, &len);
+ if (len > max) {
+ memcpy(buf, ybuf, max);
+ ts->yoff = max;
+ return max;
+ } else {
+ memcpy(buf, ybuf, len);
+ yajl_gen_clear(ts->g);
+ return len;
+ }
+}
+
+void GET_generate_taglist_free(void *cls) {
+ struct tag_state *ts = cls;
+
+ yajl_gen_free(ts->g);
+ free(ts->results);
+ free(ts);
+}
+
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;
return MHD_YES;
}
+struct MHD_Response *create_response_for_range(struct blerg *b, uint64_t from, uint64_t to) {
+ struct MHD_Response *response;
+ struct get_state *gs = malloc(sizeof(struct get_state));
+ gs->b = b;
+
+ uint64_t record_count = blerg_get_record_count(b);
+
+ if (from > to || from >= record_count || to >= record_count || to - from > 99) {
+ blerg_close(b);
+ free(gs);
+ return NULL;
+ }
+
+ gs->entries = make_sequential_list(from, to);
+ gs->i = to - from;
+
+ gs->g = yajl_gen_alloc(&yajl_c, NULL);
+ gs->yoff = gs->done = 0;
+
+ response = MHD_create_response_from_callback(-1, 262144, &GET_generate_list, gs, &GET_generate_list_free);
+
+ return response;
+}
+
+struct MHD_Response *create_tag_response(struct tag *results, uint64_t len) {
+ struct tag_state *ts = malloc(sizeof(struct tag_state));
+ ts->g = yajl_gen_alloc(&yajl_c, NULL);
+ ts->results = results;
+ ts->i = len - 1;
+ ts->yoff = ts->done = 0;
+
+ return MHD_create_response_from_callback(-1, 262144, &GET_generate_taglist, ts, &GET_generate_taglist_free);
+}
+
static int
ahc_derp (void *cls, struct MHD_Connection *connection, const char *url, const char *method,
const char *version, const char *upload_data, size_t *upload_data_size, void **ptr) {
struct MHD_Response *response;
int ret, len;
- char author[33];
- uint64_t record;
+ struct url_info info;
char *data;
if (strncmp(url, "/get", 4) == 0 && strlen(url) > 4) {
if (url[4] != '/')
return respond_404(connection);
- ret = parse_url_info(url + 5, author, &record);
+ ret = parse_url_info(url + 5, &info);
if ((ret & URL_INFO_AUTHOR) == 0)
return respond_404(connection);
- if (!blerg_exists(author))
+ if (!blerg_exists(info.author))
return respond_404(connection);
*ptr == NULL;
- if (ret & URL_INFO_RECORD) {
- struct blerg *b = blerg_open(author);
- ret = blerg_fetch(b, record, &data, &len);
+ struct blerg *b = blerg_open(info.author);
+
+ if ((ret & URL_INFO_RECORD) && (ret & URL_INFO_RECORD_TO)) {
+ response = create_response_for_range(b, info.record, info.record_to);
+ } else if (ret & URL_INFO_RECORD) {
+ ret = blerg_fetch(b, info.record, &data, &len);
blerg_close(b);
- if (ret == 0) {
+ 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;
+ response = MHD_create_response_from_data(len, data, MHD_YES, MHD_NO);
} else {
- struct get_state *gs = malloc(sizeof(struct get_state));
- gs->b = blerg_open(author);
- uint64_t record_count = blerg_get_record_count(gs->b);
+ uint64_t record_count, from, to;
+ record_count = blerg_get_record_count(b);
if (record_count == 0) {
response = MHD_create_response_from_data(2, "[]", MHD_NO, MHD_NO);
} else {
- uint64_t from, to, i, j;
to = record_count - 1;
from = (record_count > 50 ? to - 49 : 0);
- gs->entries = make_sequential_list(from, to);
- gs->i = to - from;
+ response = create_response_for_range(b, from, to);
+ }
+ }
- gs->g = yajl_gen_alloc(&yajl_c, NULL);
- gs->yoff = gs->done = 0;
+ if (response == NULL)
+ return respond_JSON_Failure(connection);
- 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, "/tag", 4) == 0 && strlen(url) > 4) {
+ 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 = MHD_queue_response(connection, MHD_HTTP_OK, response);
- MHD_destroy_response(response);
+ ret = parse_url_info(url + 5, &info);
+ if ((ret & URL_INFO_AUTHOR) == 0)
+ return respond_404(connection);
+
+ if (!tag_exists(info.author))
+ return respond_404(connection);
- return ret;
+ uint64_t recs = 50;
+ struct tag *taglist = tag_list(info.author, 0, &recs, -1);
+
+ if (recs == 0) {
+ response = MHD_create_response_from_data(2, "[]", MHD_NO, MHD_NO);
+ } else {
+ response = create_tag_response(taglist, recs);
}
+
+ if (response == NULL)
+ return respond_JSON_Failure(connection);
+
+ 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;
char *username;
if (url[5] != '/')
return respond_404(connection);
- ret = parse_url_info(url + 6, author, &record);
+ ret = parse_url_info(url + 6, &info);
if ((ret & URL_INFO_AUTHOR) == 0)
return respond_404(connection);
- if (!blerg_exists(author))
+ if (!blerg_exists(info.author))
return respond_404(connection);
*ptr == NULL;
- struct blerg *b = blerg_open(author);
+ struct blerg *b = blerg_open(info.author);
uint64_t record_count = blerg_get_record_count(b);
blerg_close(b);
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