X-Git-Url: http://git.bytex64.net/?a=blobdiff_plain;f=http_blerg.c;h=e6eddad7fe3ce13e9ed8cdc65fa5aea63166f51c;hb=08a6fd7b17e7d092899dc92fb81a941b77ab9407;hp=ef1409682a6071ae45ea1d69c317ad3ad13e6d47;hpb=fc02b699dff00d9f7a8c5856b155607ca8ed5a1d;p=blerg.git diff --git a/http_blerg.c b/http_blerg.c index ef14096..e6eddad 100644 --- a/http_blerg.c +++ b/http_blerg.c @@ -2,72 +2,270 @@ #include #include #include +#include #include "database.h" #include "tags.h" +#include "auth.h" +#define URL_INFO_AUTHOR 0x1 +#define URL_INFO_RECORD 0x2 #define DERP "DERP DERP DERP" -#define NOTFOUND "404 Not Found

404 Not Found

I couldn't find that record." + +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 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); +} + +int parse_url_info(const char *url, char *author, uint64_t *record) { + const char *c; + int ret = 0; + int len; + + c = strchr(url, '/'); + if (c == NULL) { + len = strlen(url); + } else { + len = c - url; + } + if (len == 0) + return 0; + memcpy(author, url, len); + author[len] = 0; + ret |= URL_INFO_AUTHOR; + + if (c != NULL && c[1] != 0) { + *record = strtoull(c + 1, NULL, 10); + ret |= URL_INFO_RECORD; + } + + return ret; +} + +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) { + ps->data_size = size; + ps->data = malloc(size); + memcpy(ps->data, data, size); + return MHD_NO; + } + + return MHD_YES; +} 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; - const char *c; + char author[33]; + uint64_t record; char *data; if (strncmp(url, "/get", 4) == 0 && strlen(url) > 4) { - char author[33]; - uint64_t record; - - if (strcmp(method, MHD_HTTP_METHOD_GET) != 0) - return MHD_NO; - c = strchr(url + 5, '/'); - if (c == NULL) { - len = strlen(url) - 5; - } else { - len = c - (url + 5); + if (*ptr == NULL) { + if (strcmp(method, MHD_HTTP_METHOD_GET) != 0) + return respond_405(connection); + + *ptr = (void *) 1; + return MHD_YES; } - memcpy(author, url + 5, len); - author[len] = 0; - - c = url + (5 + len); - if (c[0] == '/' && c[1] != 0) { - record = strtoull(c + 1, NULL, 10); - 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) { - response = MHD_create_response_from_data(strlen(NOTFOUND), NOTFOUND, MHD_NO, MHD_NO); - ret = MHD_queue_response(connection, MHD_HTTP_NOT_FOUND, response); - } 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; + + 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) { + 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 { + response = MHD_create_response_from_data(strlen(DERP), DERP, MHD_NO, MHD_NO); + 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->pp = MHD_create_post_processor(connection, 4096, &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, "/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 MHD_NO; + return respond_404(connection); } } @@ -77,6 +275,8 @@ int main(int argc, char *argv[]) { 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");