Allow method with sessionId and use it when appropriate (*.enable)

Signed-off-by: Francis Bouvier <francis@lightpanda.io>

src/cdp/cdp.zig

@@ -121,3 +121,33 @@ pub fn getParams(
     };
     return std.json.innerParse(T, alloc, scanner, options);
 }
+
+pub fn getSessionID(
+    alloc: std.mem.Allocator,
+    scanner: *std.json.Scanner,
+) ![]const u8 {
+    var n = (try scanner.next()).string;
+    if (std.mem.eql(u8, n, "params")) {
+        // ignore empty params
+        _ = (try scanner.next()).object_begin;
+        _ = (try scanner.next()).object_end;
+        n = (try scanner.next()).string;
+    }
+    try checkKey("sessionId", n);
+    const options = std.json.ParseOptions{
+        .max_value_len = scanner.input.len,
+        .allocate = .alloc_if_needed,
+    };
+    return std.json.innerParse([]const u8, alloc, scanner, options);
+}
+
+// Common
+// ------
+
+pub const SessionID = "9559320D92474062597D9875C664CAC0";
+
+pub const SessionIDResp = struct {
+    id: u64,
+    result: struct {} = .{},
+    sessionId: []const u8,
+};

src/cdp/log.zig

@@ -2,9 +2,10 @@ const std = @import("std");
 
 const server = @import("../server.zig");
 const Ctx = server.Cmd;
-const result = @import("cdp.zig").result;
+const cdp = @import("cdp.zig");
-const getParams = @import("cdp.zig").getParams;
+const result = cdp.result;
-const stringify = @import("cdp.zig").stringify;
+const getParams = cdp.getParams;
+const stringify = cdp.stringify;
 
 const LogMethods = enum {
     enable,
@@ -27,8 +28,11 @@ pub fn log(
 fn enable(
     alloc: std.mem.Allocator,
     id: u64,
-    _: *std.json.Scanner,
+    scanner: *std.json.Scanner,
     _: *Ctx,
 ) ![]const u8 {
-    return result(alloc, id, null, null);
+    return stringify(alloc, cdp.SessionIDResp{
+        .id = id,
+        .sessionId = try cdp.getSessionID(alloc, scanner),
+    });
 }

src/cdp/network.zig

@@ -2,9 +2,10 @@ const std = @import("std");
 
 const server = @import("../server.zig");
 const Ctx = server.Cmd;
-const result = @import("cdp.zig").result;
+const cdp = @import("cdp.zig");
-const getParams = @import("cdp.zig").getParams;
+const result = cdp.result;
-const stringify = @import("cdp.zig").stringify;
+const getParams = cdp.getParams;
+const stringify = cdp.stringify;
 
 const NetworkMethods = enum {
     enable,
@@ -27,8 +28,11 @@ pub fn network(
 fn enable(
     alloc: std.mem.Allocator,
     id: u64,
-    _: *std.json.Scanner,
+    scanner: *std.json.Scanner,
     _: *Ctx,
 ) ![]const u8 {
-    return result(alloc, id, null, null);
+    return stringify(alloc, cdp.SessionIDResp{
+        .id = id,
+        .sessionId = try cdp.getSessionID(alloc, scanner),
+    });
 }

src/cdp/page.zig

@@ -2,9 +2,10 @@ const std = @import("std");
 
 const server = @import("../server.zig");
 const Ctx = server.Cmd;
-const result = @import("cdp.zig").result;
+const cdp = @import("cdp.zig");
-const getParams = @import("cdp.zig").getParams;
+const result = cdp.result;
-const stringify = @import("cdp.zig").stringify;
+const getParams = cdp.getParams;
+const stringify = cdp.stringify;
 
 const PageMethods = enum {
     enable,
@@ -33,10 +34,13 @@ pub fn page(
 fn enable(
     alloc: std.mem.Allocator,
     id: u64,
-    _: *std.json.Scanner,
+    scanner: *std.json.Scanner,
     _: *Ctx,
 ) ![]const u8 {
-    return result(alloc, id, null, null);
+    return stringify(alloc, cdp.SessionIDResp{
+        .id = id,
+        .sessionId = try cdp.getSessionID(alloc, scanner),
+    });
 }
 
 fn getFrameTree(

src/cdp/runtime.zig

@@ -2,9 +2,10 @@ const std = @import("std");
 
 const server = @import("../server.zig");
 const Ctx = server.Cmd;
-const result = @import("cdp.zig").result;
+const cdp = @import("cdp.zig");
-const getParams = @import("cdp.zig").getParams;
+const result = cdp.result;
-const stringify = @import("cdp.zig").stringify;
+const getParams = cdp.getParams;
+const stringify = cdp.stringify;
 
 const RuntimeMethods = enum {
     enable,
@@ -29,10 +30,13 @@ pub fn runtime(
 fn enable(
     alloc: std.mem.Allocator,
     id: u64,
-    _: *std.json.Scanner,
+    scanner: *std.json.Scanner,
     _: *Ctx,
 ) ![]const u8 {
-    return result(alloc, id, null, null);
+    return stringify(alloc, cdp.SessionIDResp{
+        .id = id,
+        .sessionId = try cdp.getSessionID(alloc, scanner),
+    });
 }
 
 fn runIfWaitingForDebugger(