mirror of
https://oauth2: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@github.com/m1ngsama/TNT.git
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95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
#ifndef SSH_SERVER_H
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#define SSH_SERVER_H
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#include "common.h"
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#include "chat_room.h"
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#include <arpa/inet.h>
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#include <libssh/libssh.h>
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#include <libssh/server.h>
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/* One stored whisper. Kept per-recipient, not broadcast to the room
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* and not persisted to messages.log. Inbox is bounded; oldest slides
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* out FIFO. */
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#define WHISPER_INBOX_SIZE 16
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typedef struct {
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time_t timestamp;
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char from[MAX_USERNAME_LEN];
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char to[MAX_USERNAME_LEN];
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char content[MAX_MESSAGE_LEN];
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bool outgoing;
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} whisper_t;
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typedef enum {
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TNT_COMMAND_OUTPUT_NONE,
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TNT_COMMAND_OUTPUT_GENERIC,
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TNT_COMMAND_OUTPUT_INBOX
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} tnt_command_output_kind_t;
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/* Client connection structure */
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typedef struct client {
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ssh_session session; /* SSH session */
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ssh_channel channel; /* SSH channel */
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char username[MAX_USERNAME_LEN];
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char client_ip[INET6_ADDRSTRLEN];
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_Atomic int width;
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_Atomic int height;
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client_mode_t mode;
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ui_lang_t ui_lang;
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int scroll_pos;
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bool follow_tail; /* NORMAL stays pinned to latest until user scrolls up */
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int help_scroll_pos;
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bool show_help;
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char command_input[256];
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char command_history[16][256];
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int command_history_count;
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int command_history_pos;
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/* INSERT mode chat-message history. Last 16 messages this client
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* sent, oldest first. Up/Down in INSERT mode walks through it. */
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char insert_history[16][MAX_MESSAGE_LEN];
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int insert_history_count;
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int insert_history_pos;
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char command_output[MAX_COMMAND_OUTPUT_LEN];
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int command_output_scroll;
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tnt_command_output_kind_t command_output_kind;
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bool show_motd; /* command_output holds MOTD text */
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char exec_command[MAX_EXEC_COMMAND_LEN];
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bool exec_command_too_long;
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char ssh_login[MAX_USERNAME_LEN];
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time_t connect_time;
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time_t last_active;
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atomic_bool redraw_pending;
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_Atomic int pending_bells; /* Bell nudges for this client's loop */
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_Atomic int unread_mentions; /* @-mentions received since last reset */
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_Atomic int unread_whispers; /* whispers received since last :inbox view */
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char last_whisper_peer[MAX_USERNAME_LEN]; /* Most recent private-message peer */
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char *outbox; /* Bounded queued output for interactive writes */
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size_t outbox_len;
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size_t outbox_pos;
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size_t outbox_capacity;
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char *render_buffer; /* Reused main-screen render buffer */
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size_t render_buffer_capacity;
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/* Per-client whisper inbox. Protected separately from SSH channel I/O
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* so slow writes do not block in-memory private-message delivery. */
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whisper_t whisper_inbox[WHISPER_INBOX_SIZE];
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int whisper_inbox_count;
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bool mute_joins;
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pthread_t thread;
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atomic_bool connected;
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int ref_count; /* Reference count for safe cleanup */
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pthread_mutex_t ref_lock; /* Lock for ref_count */
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pthread_mutex_t io_lock; /* Serialize SSH channel writes */
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pthread_mutex_t whisper_lock; /* Serialize whisper inbox access */
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bool channel_callback_ref; /* client.c owns one ref while callbacks are installed */
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struct ssh_channel_callbacks_struct *channel_cb;
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} client_t;
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/* Initialize SSH server */
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int ssh_server_init(int port);
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/* Start SSH server (blocking) */
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int ssh_server_start(int listen_fd);
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/* Read-only accessor for the server start time (used by exec stats). */
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time_t ssh_server_start_time(void);
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#endif /* SSH_SERVER_H */
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