--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <microhttpd.h>
+#include <yajl/yajl_gen.h>
+#include "database.h"
+#include "tags.h"
+#include "auth.h"
+#include "canned_responses.h"
+#include "http.h"
+#include "config.h"
+
+#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 };
+
+struct create_state {
+ struct MHD_PostProcessor *pp;
+ char username[33];
+ char password[33];
+};
+
+struct put_state {
+ struct MHD_PostProcessor *pp;
+ char *data;
+ int data_size;
+};
+
+struct get_state {
+ struct blerg *b;
+ yajl_gen g;
+ unsigned int yoff;
+ uint64_t *entries;
+ uint64_t i;
+ int done;
+};
+
+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 len;
+ info->contents = 0;
+
+ c = strchr(url, '/');
+ if (c == NULL) {
+ len = strlen(url);
+ } else {
+ len = c - url;
+ }
+ if (len == 0)
+ return 0;
+ memcpy(info->author, url, len);
+ info->author[len] = 0;
+ info->contents |= URL_INFO_AUTHOR;
+
+ if (c == NULL || c[1] == 0)
+ return info->contents;
+
+ 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) {
+ uint64_t len = to - from + 1;
+ uint64_t *list = malloc(len * sizeof(uint64_t));
+ uint64_t i;
+
+ for (i = 0; i < len; i++) {
+ list[i] = from + i;
+ }
+
+ 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;
+ char *data;
+ char number[21];
+ 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;
+ return max;
+ } else {
+ memcpy(buf, ybuf + gs->yoff, bytes_remaining);
+ gs->yoff = 0;
+ yajl_gen_clear(gs->g);
+ return bytes_remaining;
+ }
+ }
+
+ if (gs->done)
+ return -1;
+
+ if (pos == 0) { /* Start iterating */
+ yajl_gen_array_open(gs->g);
+ }
+
+ /* Snarf one record */
+ json_generate_one_record(gs->g, NULL, gs->b, gs->entries[gs->i]);
+
+ if (gs->i == 0) {
+ yajl_gen_array_close(gs->g);
+ gs->done = 1;
+ }
+ gs->i--;
+
+
+ yajl_gen_get_buf(gs->g, &ybuf, &len);
+ if (len > max) {
+ memcpy(buf, ybuf, max);
+ gs->yoff = max;
+ return max;
+ } else {
+ memcpy(buf, ybuf, len);
+ yajl_gen_clear(gs->g);
+ 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->entries);
+ 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;
+
+ if (strncmp(key, "username", 9) == 0) {
+ if (size > 32) size = 32;
+ memcpy(cs->username, data, size);
+ cs->username[size] = 0;
+ } else if (strncmp(key, "password", 9) == 0) {
+ if (size > 32) size = 32;
+ memcpy(cs->password, data, size);
+ cs->password[size] = 0;
+ }
+
+ return MHD_YES;
+}
+
+int POST_put_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 put_state *ps = cls;
+
+ if (strncmp(key, "data", 5) == 0) {
+ 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);
+ }
+ memcpy(ps->data + off, data, size);
+ if (ps->data_size == MAX_RECORD_SIZE)
+ return MHD_NO;
+ }
+
+ 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;
+ struct url_info info;
+ char *data;
+
+ if (strncmp(url, "/get", 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 = parse_url_info(url + 5, &info);
+ if ((ret & URL_INFO_AUTHOR) == 0)
+ return respond_404(connection);
+
+ if (!blerg_exists(info.author))
+ return respond_404(connection);
+
+ *ptr == NULL;
+
+ 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)
+ return respond_404(connection);
+ response = MHD_create_response_from_data(len, data, MHD_YES, MHD_NO);
+ } else {
+ uint64_t record_count, from, to;
+ record_count = blerg_get_record_count(b);
+ if (record_count == 0) {
+ blerg_close(b);
+ response = MHD_create_response_from_data(2, "[]", MHD_NO, MHD_NO);
+ } else {
+ to = record_count - 1;
+ from = (record_count > 50 ? to - 49 : 0);
+ response = create_response_for_range(b, from, to);
+ }
+ }
+
+ if (response == NULL) {
+ blerg_close(b);
+ return respond_JSON_Failure(connection);
+ }
+
+ 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 = 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);
+
+ 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;
+ char password[33];
+
+ if (*ptr == NULL) {
+ if (strcmp(method, MHD_HTTP_METHOD_POST) != 0)
+ return respond_405(connection);
+
+ if (url[4] == '/')
+ return respond_404(connection);
+
+ *ptr = (void *) 1;
+
+ username = MHD_digest_auth_get_username(connection);
+ if (username == NULL)
+ return respond_401(connection, MHD_NO);
+ auth_get_password(username, password);
+
+ ret = MHD_digest_auth_check(connection, REALM, username, password, 300);
+ free(username);
+
+ if (ret == MHD_INVALID_NONCE || ret == MHD_NO)
+ return respond_401(connection, (ret == MHD_INVALID_NONCE) ? MHD_YES : MHD_NO);
+
+ struct put_state *ps = malloc(sizeof(struct put_state));
+ ps->data = NULL;
+ ps->data_size = 0;
+ ps->pp = MHD_create_post_processor(connection, 16384, &POST_put_iterator, ps);
+ *ptr = ps;
+ return MHD_YES;
+ }
+
+ if (*upload_data_size) {
+ MHD_post_process(ps->pp, upload_data, *upload_data_size);
+ *upload_data_size = 0;
+ return MHD_YES;
+ }
+
+ if (ps->data == NULL || ps->data_size == 0)
+ return respond_JSON_Failure(connection);
+
+ username = MHD_digest_auth_get_username(connection);
+ struct blerg *b = blerg_open(username);
+ if (b == NULL)
+ return respond_JSON_Failure(connection);
+ if (blerg_store(b, ps->data, ps->data_size) == -1) {
+ blerg_close(b);
+ return respond_JSON_Failure(connection);
+ }
+ blerg_close(b);
+
+ MHD_destroy_post_processor(ps->pp);
+ free(username);
+ free(ps->data);
+ free(ps);
+ *ptr = NULL;
+
+ return respond_JSON_Success(connection);
+ } else if (strncmp(url, "/info", 5) == 0) {
+ if (*ptr == NULL) {
+ *ptr = (void *) 1;
+
+ if (strcmp(method, MHD_HTTP_METHOD_GET) != 0)
+ return respond_405(connection);
+ return MHD_YES;
+ }
+
+
+ if (url[5] != '/')
+ return respond_404(connection);
+
+ ret = parse_url_info(url + 6, &info);
+ if ((ret & URL_INFO_AUTHOR) == 0)
+ return respond_404(connection);
+
+ if (!blerg_exists(info.author))
+ return respond_404(connection);
+
+ *ptr == NULL;
+
+ struct blerg *b = blerg_open(info.author);
+ uint64_t record_count = blerg_get_record_count(b);
+ blerg_close(b);
+
+ char number[21];
+ yajl_gen g = yajl_gen_alloc(&yajl_c, NULL);
+ yajl_gen_map_open(g);
+ yajl_gen_string(g, "record_count", 12);
+ snprintf(number, 21, "%llu", record_count);
+ yajl_gen_string(g, number, strlen(number));
+ yajl_gen_map_close(g);
+
+ const unsigned char *ybuf;
+ yajl_gen_get_buf(g, &ybuf, &len);
+
+ response = MHD_create_response_from_data(len, (void *)ybuf, MHD_NO, MHD_YES);
+ ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+ MHD_destroy_response(response);
+
+ yajl_gen_free(g);
+
+ return ret;
+ } else if (strncmp(url, "/create", 8) == 0) {
+ struct create_state *cs = (struct create_state *) *ptr;
+
+ if (cs == NULL) {
+ if (strcmp(method, MHD_HTTP_METHOD_POST) != 0)
+ return respond_405(connection);
+
+ struct create_state *cs = malloc(sizeof(struct create_state));
+ cs->username[0] = cs->password[0] = 0;
+ cs->pp = MHD_create_post_processor(connection, 1024, &POST_create_iterator, cs);
+ *ptr = cs;
+ return MHD_YES;
+ }
+
+ if (*upload_data_size) {
+ MHD_post_process(cs->pp, upload_data, *upload_data_size);
+ *upload_data_size = 0;
+ return MHD_YES;
+ }
+
+ if (cs->username[0] == 0 || cs->password[0] == 0)
+ return respond_JSON_Failure(connection);
+
+ if (blerg_exists(cs->username))
+ return respond_JSON_Failure(connection);
+
+ struct blerg *b = blerg_open(cs->username);
+ blerg_close(b);
+ auth_set_password(cs->username, cs->password);
+
+ MHD_destroy_post_processor(cs->pp);
+ free(cs);
+ *ptr = NULL;
+
+ return respond_JSON_Success(connection);
+ } else {
+ return respond_404(connection);
+ }
+}
+
+
+int main(int argc, char *argv[]) {
+ struct MHD_Daemon *daemon;
+ fd_set rs, ws, es;
+ int max;
+
+ init_responses();
+
+ daemon = MHD_start_daemon(MHD_USE_DEBUG, 8080, NULL, NULL, &ahc_derp, NULL, MHD_OPTION_END);
+ if (daemon == NULL) {
+ fprintf(stderr, "Could not start web server\n");
+ return 1;
+ }
+
+ while (1) {
+ FD_ZERO(&rs); FD_ZERO(&ws); FD_ZERO(&es);
+ if (MHD_get_fdset(daemon, &rs, &ws, &es, &max) != MHD_YES) {
+ fprintf(stderr, "Fatal error getting fd sets\n");
+ break;
+ }
+ select(max + 1, &rs, &ws, &es, NULL);
+ MHD_run(daemon);
+ }
+ MHD_stop_daemon(daemon);
+ return 0;
+}
projects / blerg.git / blobdiff