Node / ReticulumProjects / MeshChatX.git / files / meshchatx / src / backend / favourites_layout.py

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T8b949e"""Normalize and validate NomadNet favourite section layout blobs."""

Te6edf3NOMADNET_FAVOURITES_LAYOUT_KEY Tff7b72= Ta5d6ff"Ta5d6ffnomadnet_favourites_layoutTa5d6ff"

T8b949e# Hard caps keep PUT payloads cheap to parse/store and avoid pathological layouts.

Te6edf3MAX_SECTIONS Tff7b72= T79c0ff64

Te6edf3MAX_SECTION_ID_LEN Tff7b72= T79c0ff64

Te6edf3MAX_SECTION_NAME_LEN Tff7b72= T79c0ff128

Te6edf3MAX_HASHES_PER_SECTION Tff7b72= T79c0ff2000

Te6edf3MAX_TOTAL_HASHES Tff7b72= T79c0ff4000

Te6edf3MAX_HASH_LEN Tff7b72= T79c0ff64

Te6edf3MAX_LAYOUT_JSON_BYTES Tff7b72= T79c0ff256 Tff7b72* T79c0ff1024

Te6edf3_FORBIDDEN_SECTION_IDS Tff7b72= Tffa657frozensetTb4b4b4(Tb4b4b4{Ta5d6ff"Ta5d6ff__proto__Ta5d6ff"Tb4b4b4, Ta5d6ff"Ta5d6ffconstructorTa5d6ff"Tb4b4b4, Ta5d6ff"Ta5d6ffprototypeTa5d6ff"Tb4b4b4}Tb4b4b4)

Tff7b72def Td2a8ff_clip_strTb4b4b4(Te6edf3valueTb4b4b4, Te6edf3max_lenTb4b4b4)Tb4b4b4:

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3valueTb4b4b4, Tffa657strTb4b4b4)Tb4b4b4:

Tff7b72return Ta5d6ff"Ta5d6ff"

Tff7b72if Tffa657lenTb4b4b4(Te6edf3valueTb4b4b4) Tff7b72<Tff7b72= Te6edf3max_lenTb4b4b4:

Tff7b72return Te6edf3value

Tff7b72return Te6edf3valueTb4b4b4[Tb4b4b4:Te6edf3max_lenTb4b4b4]

Tff7b72def Td2a8ffnormalize_favourites_layoutTb4b4b4(Te6edf3layoutTb4b4b4)Tb4b4b4:

T8b949e"""Return a sanitized layout dict, or None when the shape is invalid."""

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3layoutTb4b4b4, Tffa657dictTb4b4b4) Tff7b72or Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3layoutTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6ffsectionsTa5d6ff"Tb4b4b4)Tb4b4b4, Tffa657listTb4b4b4)Tb4b4b4:

Tff7b72return Tff7b72None

Te6edf3raw_by_section Tff7b72= Te6edf3layoutTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6fffavouritesBySectionTa5d6ff"Tb4b4b4)

Te6edf3favourites_by_section Tff7b72= Te6edf3raw_by_section Tff7b72if Tffa657isinstanceTb4b4b4(Te6edf3raw_by_sectionTb4b4b4, Tffa657dictTb4b4b4) Tff7b72else Tb4b4b4{Tb4b4b4}

Te6edf3sections Tff7b72= Tb4b4b4[Tb4b4b4]

Te6edf3section_ids Tff7b72= Tffa657setTb4b4b4(Tb4b4b4)

Tff7b72for Te6edf3section Tff7b72in Te6edf3layoutTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6ffsectionsTa5d6ff"Tb4b4b4) Tff7b72or Tb4b4b4[Tb4b4b4]Tb4b4b4:

Tff7b72if Tffa657lenTb4b4b4(Te6edf3sectionsTb4b4b4) Tff7b72>Tff7b72= Te6edf3MAX_SECTIONSTb4b4b4:

Tff7b72break

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3sectionTb4b4b4, Tffa657dictTb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3section_id Tff7b72= Te6edf3sectionTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6ffidTa5d6ff"Tb4b4b4)

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3section_idTb4b4b4, Tffa657strTb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3section_id Tff7b72= Te6edf3section_idTff7b72.Td2a8ffstripTb4b4b4(Tb4b4b4)

Tff7b72if Tb4b4b4(

Tff7b72not Te6edf3section_id

Tff7b72or Ta5d6ff"Tffea00\x00Ta5d6ff" Tff7b72in Te6edf3section_id

Tff7b72or Tffa657lenTb4b4b4(Te6edf3section_idTb4b4b4) Tff7b72> Te6edf3MAX_SECTION_ID_LEN

Tff7b72or Te6edf3section_id Tff7b72in Te6edf3section_ids

Tff7b72or Te6edf3section_id Tff7b72in Te6edf3_FORBIDDEN_SECTION_IDS

Tb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3section_idsTff7b72.Td2a8ffaddTb4b4b4(Te6edf3section_idTb4b4b4)

Te6edf3name Tff7b72= Te6edf3_clip_strTb4b4b4(Te6edf3sectionTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6ffnameTa5d6ff"Tb4b4b4)Tb4b4b4, Te6edf3MAX_SECTION_NAME_LENTb4b4b4)

Te6edf3sectionsTff7b72.Td2a8ffappendTb4b4b4(

Tb4b4b4{

Ta5d6ff"Ta5d6ffidTa5d6ff"Tb4b4b4: Te6edf3section_idTb4b4b4,

Ta5d6ff"Ta5d6ffnameTa5d6ff"Tb4b4b4: Te6edf3nameTb4b4b4,

Ta5d6ff"Ta5d6ffcollapsedTa5d6ff"Tb4b4b4: Te6edf3sectionTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6ffcollapsedTa5d6ff"Tb4b4b4) Tff7b72is Tff7b72TrueTb4b4b4,

Tb4b4b4}Tb4b4b4,

Tb4b4b4)

Tff7b72if Tff7b72not Te6edf3sectionsTb4b4b4:

Tff7b72return Tff7b72None

Te6edf3raw_order Tff7b72= Te6edf3layoutTff7b72.Td2a8ffgetTb4b4b4(Ta5d6ff"Ta5d6ffsectionOrderTa5d6ff"Tb4b4b4)

Tff7b72if Tffa657isinstanceTb4b4b4(Te6edf3raw_orderTb4b4b4, Tffa657listTb4b4b4)Tb4b4b4:

Te6edf3section_order Tff7b72= Tb4b4b4[Tb4b4b4]

Tff7b72for Te6edf3sid Tff7b72in Te6edf3raw_orderTb4b4b4:

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3sidTb4b4b4, Tffa657strTb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3sid Tff7b72= Te6edf3sidTff7b72.Td2a8ffstripTb4b4b4(Tb4b4b4)

Tff7b72if Te6edf3sid Tff7b72in Te6edf3section_ids Tff7b72and Te6edf3sid Tff7b72not Tff7b72in Te6edf3section_orderTb4b4b4:

Te6edf3section_orderTff7b72.Td2a8ffappendTb4b4b4(Te6edf3sidTb4b4b4)

Tff7b72if Tffa657lenTb4b4b4(Te6edf3section_orderTb4b4b4) Tff7b72>Tff7b72= Te6edf3MAX_SECTIONSTb4b4b4:

Tff7b72break

Tff7b72elseTb4b4b4:

Te6edf3section_order Tff7b72= Tb4b4b4[Te6edf3sectionTb4b4b4[Ta5d6ff"Ta5d6ffidTa5d6ff"Tb4b4b4] Tff7b72for Te6edf3section Tff7b72in Te6edf3sectionsTb4b4b4]

Tff7b72for Te6edf3section Tff7b72in Te6edf3sectionsTb4b4b4:

Tff7b72if Te6edf3sectionTb4b4b4[Ta5d6ff"Ta5d6ffidTa5d6ff"Tb4b4b4] Tff7b72not Tff7b72in Te6edf3section_orderTb4b4b4:

Te6edf3section_orderTff7b72.Td2a8ffappendTb4b4b4(Te6edf3sectionTb4b4b4[Ta5d6ff"Ta5d6ffidTa5d6ff"Tb4b4b4]Tb4b4b4)

Te6edf3sanitized_map Tff7b72= Tb4b4b4{Tb4b4b4}

Te6edf3total_hashes Tff7b72= T79c0ff0

Tff7b72for Te6edf3keyTb4b4b4, Te6edf3value Tff7b72in Te6edf3favourites_by_sectionTff7b72.Td2a8ffitemsTb4b4b4(Tb4b4b4)Tb4b4b4:

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3keyTb4b4b4, Tffa657strTb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3key Tff7b72= Te6edf3keyTff7b72.Td2a8ffstripTb4b4b4(Tb4b4b4)

Tff7b72if Te6edf3key Tff7b72not Tff7b72in Te6edf3section_ids Tff7b72or Te6edf3key Tff7b72in Te6edf3_FORBIDDEN_SECTION_IDSTb4b4b4:

Tff7b72continue

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3valueTb4b4b4, Tffa657listTb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3hashes Tff7b72= Tb4b4b4[Tb4b4b4]

Te6edf3seen Tff7b72= Tffa657setTb4b4b4(Tb4b4b4)

Tff7b72for Te6edf3item Tff7b72in Te6edf3valueTb4b4b4:

Tff7b72if Tb4b4b4(

Te6edf3total_hashes Tff7b72>Tff7b72= Te6edf3MAX_TOTAL_HASHES

Tff7b72or Tffa657lenTb4b4b4(Te6edf3hashesTb4b4b4) Tff7b72>Tff7b72= Te6edf3MAX_HASHES_PER_SECTION

Tb4b4b4)Tb4b4b4:

Tff7b72break

Tff7b72if Tff7b72not Tffa657isinstanceTb4b4b4(Te6edf3itemTb4b4b4, Tffa657strTb4b4b4)Tb4b4b4:

Tff7b72continue

Te6edf3h Tff7b72= Te6edf3itemTff7b72.Td2a8ffstripTb4b4b4(Tb4b4b4)

Tff7b72if Tff7b72not Te6edf3h Tff7b72or Ta5d6ff"Tffea00\x00Ta5d6ff" Tff7b72in Te6edf3h Tff7b72or Tffa657lenTb4b4b4(Te6edf3hTb4b4b4) Tff7b72> Te6edf3MAX_HASH_LEN Tff7b72or Te6edf3h Tff7b72in Te6edf3seenTb4b4b4:

Tff7b72continue

Te6edf3seenTff7b72.Td2a8ffaddTb4b4b4(Te6edf3hTb4b4b4)

Te6edf3hashesTff7b72.Td2a8ffappendTb4b4b4(Te6edf3hTb4b4b4)

Te6edf3total_hashes Tff7b72+Tff7b72= T79c0ff1

Te6edf3sanitized_mapTb4b4b4[Te6edf3keyTb4b4b4] Tff7b72= Te6edf3hashes

Tff7b72for Te6edf3section Tff7b72in Te6edf3sectionsTb4b4b4:

Te6edf3sanitized_mapTff7b72.Td2a8ffsetdefaultTb4b4b4(Te6edf3sectionTb4b4b4[Ta5d6ff"Ta5d6ffidTa5d6ff"Tb4b4b4]Tb4b4b4, Tb4b4b4[Tb4b4b4]Tb4b4b4)

Tff7b72return Tb4b4b4{

Ta5d6ff"Ta5d6ffsectionsTa5d6ff"Tb4b4b4: Te6edf3sectionsTb4b4b4,

Ta5d6ff"Ta5d6ffsectionOrderTa5d6ff"Tb4b4b4: Te6edf3section_orderTb4b4b4,

Ta5d6ff"Ta5d6fffavouritesBySectionTa5d6ff"Tb4b4b4: Te6edf3sanitized_mapTb4b4b4,

Tb4b4b4}

Tff7b72def Td2a8fflayout_payload_too_largeTb4b4b4(Te6edf3raw_body_lenTb4b4b4)Tb4b4b4:

T8b949e"""Return True when a raw request body exceeds the layout size budget.

Negative sizes are treated as oversize so hostile Content-Length values

cannot skip the early reject path.

"""

Tff7b72tryTb4b4b4:

Te6edf3size Tff7b72= Tffa657intTb4b4b4(Te6edf3raw_body_lenTb4b4b4)

Tff7b72except Tb4b4b4(Tf85149TypeErrorTb4b4b4, Tf85149ValueErrorTb4b4b4)Tb4b4b4:

Tff7b72return Tff7b72False

Tff7b72if Te6edf3size Tff7b72< T79c0ff0Tb4b4b4:

Tff7b72return Tff7b72True

Tff7b72return Te6edf3size Tff7b72> Te6edf3MAX_LAYOUT_JSON_BYTES