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Merge pull request #2696 from yueguobin/fix/rfc1123-error-message

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fix: improve hostname validation error messages with allowed characters
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Jeremy Grossmann 2026-05-02 18:30:49 +08:00 committed by GitHub
commit b87ab8f86f
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4 changed files with 4 additions and 4 deletions
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2
gns3server/compute/docker/docker_vm.py
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@ -188,7 +188,7 @@ class DockerVM(BaseNode):
"""
if not is_rfc1123_hostname_valid(new_name):
raise DockerError(f"'{new_name}' is an invalid name to rename Docker container '{self._name}'")
raise DockerError(f"'{new_name}' is an invalid name to rename Docker container '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name cannot start or end with a hyphen.")
super(DockerVM, DockerVM).name.__set__(self, new_name)
@property

2
gns3server/compute/dynamips/nodes/router.py
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@ -1682,7 +1682,7 @@ class Router(BaseNode):
"""
if not is_ios_hostname_valid(new_name):
raise DynamipsError(f"{new_name} is an invalid name to rename router '{self._name}'")
raise DynamipsError(f"{new_name} is an invalid name to rename router '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name must start with a letter, end with a letter or digit, and be 63 characters or fewer.")
await self._hypervisor.send(f'vm rename "{self._name}" "{new_name}"')

2
gns3server/compute/iou/iou_vm.py
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@ -367,7 +367,7 @@ class IOUVM(BaseNode):
"""
if not is_ios_hostname_valid(new_name):
raise IOUError(f"'{new_name}' is an invalid name to rename IOU node '{self._name}'")
raise IOUError(f"'{new_name}' is an invalid name to rename IOU node '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name must start with a letter, end with a letter or digit, and be 63 characters or fewer.")
if self.startup_config_file:
content = self.startup_config_content
content = re.sub(r"hostname .+$", "hostname " + new_name, content, flags=re.MULTILINE)

2
gns3server/compute/qemu/qemu_vm.py
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@ -197,7 +197,7 @@ class QemuVM(BaseNode):
"""
if not is_rfc1123_hostname_valid(new_name):
raise QemuError(f"'{new_name}' is an invalid name to rename Qemu node '{self._name}'")
raise QemuError(f"'{new_name}' is an invalid name to rename Qemu node '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name cannot start or end with a hyphen.")
super(QemuVM, QemuVM).name.__set__(self, new_name)
@property