Merge old-moleholencurses

10 files changed, 303 insertions, 0 deletions

diff --git a/include/color.h b/include/color.h
new file mode 100755
index 0000000..0fbad4f
--- /dev/null
+++ b/include/color.h
@@ -0,0 +1,18 @@
+#ifndef _COLOR_H_
+#define _COLOR_H_
+#include <ncurses.h>
+
+/**
+ * Initialize color pairs for the rest of the application.
+ */
+void set_colors(void);
+
+enum StatusColorPairs { STATUS_MAIN = 1, STATUS_ERROR, STATUS_PROMPT };
+
+enum StatusColors {
+  COLOR_GREY = 238,
+  COLOR_DIM_WHITE = 250,
+  COLOR_DIM_RED = 160
+};
+
+#endif
diff --git a/include/config.h b/include/config.h
new file mode 100755
index 0000000..b90c5bd
--- /dev/null
+++ b/include/config.h
@@ -0,0 +1,56 @@
+#ifndef _CONFIG_H_
+#define _CONFIG_H_
+#include <ncurses.h>
+#include <openssl/ssl.h>
+
+#include "response.h"
+#include "url.h"
+
+/**
+ * Molehole internal setting.
+ *
+ * Holds important information for the molehole runtime like terminal
+ * dimensions, and active ncurses windows.
+ */
+struct config_internal {
+  int height;
+  int width;
+
+  WINDOW *page_win;
+  WINDOW *status_win;
+};
+
+/**
+ * Molehole current state information.
+ *
+ * Holds information pertaining to the content displayed such as the current
+ * page url.
+ */
+struct config_state {
+  char *url_string;
+  struct url *url;
+  struct connection *conn;
+  struct response *res;
+};
+
+/**
+ * Molehole configuration.
+ *
+ * Holds the state of the program including user configuration.
+ */
+struct config {
+  struct config_internal i;
+  struct config_state s;
+};
+
+/**
+ * Initializes a config with default parameters.
+ */
+void init_config(struct config *conf);
+
+
+/**
+ * Cleans up a config state and internal.
+ */
+void conf_cleanup(struct config *conf);
+#endif
diff --git a/include/connect.h b/include/connect.h
new file mode 100755
index 0000000..d733c5e
--- /dev/null
+++ b/include/connect.h
@@ -0,0 +1,44 @@
+#ifndef _CONNECT_H_
+#define _CONNECT_H_
+
+#include <openssl/ssl.h>
+
+#include "config.h"
+#include "url.h"
+
+/* Error codes */
+enum ConnectError {
+  ERR_GETADDRINFO = -1,
+  ERR_SOCKET = -2,
+  ERR_CONNECT = -3,
+  ERR_SSL_CTX = -4,
+  ERR_SSL_SSL = -5,
+};
+
+/**
+ * Holds all needed information to manage an open TLS connection.
+ */
+struct connection {
+  SSL *ssl;
+  int sockfd;
+  bool used;
+};
+
+/**
+ * Connect to molerat server.
+ *
+ * Sets `*ssl` in `struct config *conf` to the current active connection.
+ */
+int tls_connect(struct config *conf, struct url url);
+
+/**
+ * Disconnect and free open connection
+ */
+void tls_cleanup(struct connection *conn);
+
+/**
+ * Allocate a new instance of a `struct connection`
+ */
+struct connection *init_connection(void);
+
+#endif
diff --git a/include/molerat.h b/include/molerat.h
new file mode 100755
index 0000000..4c07866
--- /dev/null
+++ b/include/molerat.h
@@ -0,0 +1,9 @@
+#ifndef _MOLERAT_H_
+#define _MOLERAT_H_
+ 
+struct key {
+  char* key;
+  char* value;
+};
+
+#endif
diff --git a/include/net.h b/include/net.h
new file mode 100755
index 0000000..af6bf57
--- /dev/null
+++ b/include/net.h
@@ -0,0 +1,24 @@
+#ifndef _NET_H_
+#define _NET_H_
+#include "config.h"
+#include "request.h"
+#include "response.h"
+
+/**
+ * Sends a `struct request` to the current `struct connection` contained within
+ * `struct config *conf`.
+ */
+int send_request(struct config *conf, struct request *req);
+
+/**
+ * Reads a response from the current `struct connection` and parses it into
+ * `struct response *res`
+ */
+int read_response(struct config *conf, struct response *res);
+
+enum NetError {
+  SSL_SEND_ERROR = -1,
+  ALLOC_ERROR = -2,
+  RESPONSE_PARSE_ERROR = -3,
+};
+#endif
diff --git a/include/request.h b/include/request.h
new file mode 100755
index 0000000..087b1c0
--- /dev/null
+++ b/include/request.h
@@ -0,0 +1,22 @@
+#ifndef _REQUEST_H_
+#define _REQUEST_H_
+#include "molerat.h"
+#include "url.h"
+
+enum RequestKind { GET, PUT, DEL };
+
+struct request {
+  enum RequestKind kind;
+  struct url url;
+  struct key *keys;
+};
+
+/**
+ * Convert a `struct request` to a string of chars that can be sent over the
+ * network.
+ *
+ * WARNING: Printing the screen won't work because the request ends in two
+ * \r\n's
+ */
+char *request_to_string(struct request *request);
+#endif
diff --git a/include/response.h b/include/response.h
new file mode 100755
index 0000000..e4242a5
--- /dev/null
+++ b/include/response.h
@@ -0,0 +1,50 @@
+#ifndef _RESPONSE_H_
+#define _RESPONSE_H_
+
+enum ResponseStatus {
+  SUCCESS = 10,
+  CONTENT_UNCHANGED = 11,
+
+  PERMANENT_REDIRECT = 20,
+  TEMPORARY_REDIRECT = 21,
+
+  MALFORMED_REQUEST = 30,
+  INVALID_REQUEST = 31,
+  NOT_AVAILABLE = 32,
+
+  INTERNAL_ERROR = 40,
+  NOT_SUPPORTED = 41,
+  SLOW_DOWN = 42,
+
+  CLIENT_CERTIFICATE_REQUIRED = 50
+};
+
+struct mime_type {
+  char *type;
+  char *subtype;
+};
+
+struct response {
+  enum ResponseStatus status;
+  char *message;
+  struct mime_type type;
+  unsigned int length;
+  char *hash;
+  char *content;
+};
+
+/**
+ * Parses a string into a `struct response`.
+ */
+int parse_response(struct response *res, char *s);
+
+/**
+ * Deallocates `struct response *res`.
+ */
+void free_response(struct response *res);
+
+enum ResponseError {
+  INVALID_STATUS = -1,
+  UNKNOWN_KEY = -2,
+};
+#endif
diff --git a/include/status.h b/include/status.h
new file mode 100755
index 0000000..45f6465
--- /dev/null
+++ b/include/status.h
@@ -0,0 +1,27 @@
+#ifndef _STATUS_H_
+#define _STATUS_H_
+#include "config.h"
+
+/**
+ * Allocate a status window at the bottom of the terminal
+ *
+ * Saves the status window into the `*conf` parameter.
+ */
+void init_status(struct config *conf);
+
+/**
+ * Set the message currently displayed in the status window.
+ */
+void update_status(struct config *conf, char *s);
+
+/**
+ * Set the status to prompt for a Molerat URL. The raw string recieved will be.
+ * placed in `*conf`
+ */
+void prompt_status_url(struct config *conf);
+
+/**
+ * Same as `update_status` but signify error.
+ */
+void error_status(struct config *conf, char *s);
+#endif
diff --git a/include/url.h b/include/url.h
new file mode 100755
index 0000000..c1278ee
--- /dev/null
+++ b/include/url.h
@@ -0,0 +1,42 @@
+#ifndef _URL_H_
+#define _URL_H_
+
+#define MAX_URL_LENGTH 2048
+
+/**
+ * Molerat URL.
+ *
+ * Holds all relevant for molehole to make requests.
+ */
+struct url {
+  char *scheme;
+  char *host;
+  int port;
+  char *path;
+  char *query;
+  char *fragment;
+};
+
+/**
+ * Parses a `*s` into `*url` as a molerat URL.
+ */
+int parse_url(struct url *url, char *s);
+
+/**
+ * Deallocates `struct url *url`.
+ */
+void free_url(struct url *url);
+
+/**
+ * Initializes a `struct url*` with sensible defaults.
+ */
+struct url *init_url(void);
+
+/**
+ * Get's the strlen of a `struct url*`
+ */
+int len_url(struct url *url);
+
+/* Error codes */
+enum UrlError { INVALID_CHARACTER = -1, MISSING_HOST = -2, MISSING_PORT = -3 };
+#endif
diff --git a/include/util.h b/include/util.h
new file mode 100755
index 0000000..9418824
--- /dev/null
+++ b/include/util.h
@@ -0,0 +1,11 @@
+#ifndef _UTIL_H_
+#define _UTIL_H_
+#include <stdnoreturn.h>
+
+/**
+ * Kill program by printing message `*s` and errno.
+ *
+ * Shuts down ncurses before killing program.
+ */
+noreturn void die(const char *s);
+#endif