X-Git-Url: http://git.bytex64.net/?a=blobdiff_plain;ds=sidebyside;f=http_blerg.c;h=8c9aa5149f382042544629532293cf0092013186;hb=8e09dd305e599a87aea36f61c374ef2bcdc69398;hp=e6eddad7fe3ce13e9ed8cdc65fa5aea63166f51c;hpb=3d6d277d4cdfff7c11729cde0e2498b4b3912a98;p=blerg.git diff --git a/http_blerg.c b/http_blerg.c index e6eddad..8c9aa51 100644 --- a/http_blerg.c +++ b/http_blerg.c @@ -6,6 +6,9 @@ #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 @@ -23,50 +26,14 @@ struct put_state { int data_size; }; -struct MHD_Response *response_401; -struct MHD_Response *response_404; -struct MHD_Response *response_405; -struct MHD_Response *response_JSON_Success; -struct MHD_Response *response_JSON_Failure; - -void init_responses() { -#define CONTENT_401 "401 Unauthorized

401 Unauthorized

DENIED" - response_401 = MHD_create_response_from_data(strlen (CONTENT_401), CONTENT_401, MHD_NO, MHD_NO); - -#define CONTENT_404 "404 Not Found

404 Not Found

I couldn't find that." - response_404 = MHD_create_response_from_data(strlen(CONTENT_404), CONTENT_404, MHD_NO, MHD_NO); - -#define CONTENT_405 "405 Method Not Allowed

405 Method Not Allowed

I'm sorry, Dave. I'm afraid I can't do that." - response_405 = MHD_create_response_from_data(strlen(CONTENT_405), CONTENT_405, MHD_NO, MHD_NO); - -#define JSON_SUCCESS "{status: \"success\"}" - response_JSON_Success = MHD_create_response_from_data(strlen(JSON_SUCCESS), JSON_SUCCESS, MHD_NO, MHD_NO); - -#define JSON_FAILURE "{status: \"failure\"}" - response_JSON_Failure = MHD_create_response_from_data(strlen(JSON_FAILURE), JSON_FAILURE, MHD_NO, MHD_NO); -} - -#define REALM "Blerg" -#define OPAQUE "d29fb6db8f21a6e99903651a9f87470e" -int respond_401(struct MHD_Connection *connection, int signal_stale) { - return MHD_queue_auth_fail_response(connection, REALM, OPAQUE, response_401, signal_stale); -} - -int respond_404(struct MHD_Connection *connection) { - return MHD_queue_response(connection, MHD_HTTP_NOT_FOUND, response_404); -} - -int respond_405(struct MHD_Connection *connection) { - return MHD_queue_response(connection, MHD_HTTP_METHOD_NOT_ALLOWED, response_405); -} - -int respond_JSON_Success(struct MHD_Connection *connection) { - return MHD_queue_response(connection, MHD_HTTP_OK, response_JSON_Success); -} - -int respond_JSON_Failure(struct MHD_Connection *connection) { - return MHD_queue_response(connection, MHD_HTTP_OK, response_JSON_Failure); -} +struct get_state { + struct blerg *b; + yajl_gen g; + unsigned int yoff; + uint64_t *entries; + uint64_t i; + int done; +}; int parse_url_info(const char *url, char *author, uint64_t *record) { const char *c; @@ -93,6 +60,87 @@ int parse_url_info(const char *url, char *author, uint64_t *record) { return ret; } +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; +} + +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 */ + blerg_fetch(gs->b, gs->entries[gs->i], &data, &len); + + 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; + } + 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); +} + 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; @@ -113,10 +161,19 @@ int POST_put_iterator(void *cls, enum MHD_ValueKind kind, const char *key, const 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); + } + memcpy(ps->data + off, data, size); + if (ps->data_size == MAX_RECORD_SIZE) + return MHD_NO; } return MHD_YES; @@ -166,9 +223,30 @@ ahc_derp (void *cls, struct MHD_Connection *connection, const char *url, const c MHD_destroy_response(response); return ret; } else { - response = MHD_create_response_from_data(strlen(DERP), DERP, MHD_NO, MHD_NO); + struct get_state *gs = malloc(sizeof(struct get_state)); + gs->b = blerg_open(author); + uint64_t record_count = blerg_get_record_count(gs->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; + + yajl_gen_config c; + c.beautify = 0; + + gs->g = yajl_gen_alloc(&c, NULL); + gs->yoff = 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) { @@ -198,7 +276,8 @@ ahc_derp (void *cls, struct MHD_Connection *connection, const char *url, const c 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; }