FreeDom

src: http_cache

*Community 7

16 files

cohesion 0.79*

Definition

This community groups 16 file(s) rooted at src with dominant language c (cohesion 0.79). Central symbols: FREEDOM_CACHED_FETCH_H, FREEDOM_DISK_STORE_H, FREEDOM_HTTP_CACHE_H, FREEDOM_LOCAL_STORE_H, FREEDOM_PQ_SEAL_H, HC_EVICT_EVERY, HC_HEURISTIC_CAP, HC_KEY_FILE. Core file: src/http_cache.c (38 symbols).

Files

File	Language	Layer	Symbols	Doc
include/cached_fetch.h	h	infrastructure	4	no
include/disk_store.h	h	data_access	3	no
include/http_cache.h	h	presentation	19	no
include/local_store.h	h	data_access	11	no
include/pq_seal.h	h	utility	8	no
src/cached_fetch.c	c	infrastructure	14	no
src/disk_store.c	c	data_access	6	no
src/http_cache.c	c	presentation	38	no
src/local_store.c	c	data_access	31	no
src/pq_seal.c	c	utility	11	no
src/profile.c	c	utility	9	no
tests/test_cached_fetch.c	c	testing	14	no
tests/test_disk_store.c	c	testing	16	no
tests/test_http_cache.c	c	testing	17	no
tests/test_local_store.c	c	testing	18	no
tests/test_pq_seal.c	c	testing	7	no

Key Symbols

• FREEDOM_CACHED_FETCH_H (macro, include/cached_fetch.h:2) #define FREEDOM_CACHED_FETCH_H
• cf_set_store (function, include/cached_fetch.h:30) void cf_set_store(hc_store *store); - Cache-aware GET. partition is the top-level site (double keying). On a fresh hit the response is r
• cf_store (function, include/cached_fetch.h:31) hc_store *cf_store(void);
• cf_attach_redirect_memory (function, include/cached_fetch.h:38) void cf_attach_redirect_memory(hc_store *store); - conditional GET is sent to the stored FINAL url and a 304 serves the stored body. sf_status cf_get_w
• FREEDOM_DISK_STORE_H (macro, include/disk_store.h:2) #define FREEDOM_DISK_STORE_H
• ds_status (enum, include/disk_store.h:25)
• ds_free (function, include/disk_store.h:47) void ds_free(uint8_t *buf, size_t len); - Reads and decrypts path. Wrong key / tampering => DS_ERR_AUTH (no plaintext). * *out is owned; relea
• FREEDOM_HTTP_CACHE_H (macro, include/http_cache.h:2) #define FREEDOM_HTTP_CACHE_H
• HC_VAL_MAX (macro, include/http_cache.h:20) #define HC_VAL_MAX
• HC_URL_MAX (macro, include/http_cache.h:21) #define HC_URL_MAX
• HC_TYPE_MAX (macro, include/http_cache.h:22) #define HC_TYPE_MAX
• HC_MAX_ENTRY (macro, include/http_cache.h:23) #define HC_MAX_ENTRY
• HC_MAX_TOTAL (macro, include/http_cache.h:24) #define HC_MAX_TOTAL
• HC_REDIRECT_TTL (macro, include/http_cache.h:25) #define HC_REDIRECT_TTL
• HC_HEURISTIC_CAP (macro, include/http_cache.h:26) #define HC_HEURISTIC_CAP
• hc_status (enum, include/http_cache.h:28)
• hc_class (enum, include/http_cache.h:38)
• final_url (type_alias, include/http_cache.h:43) typedef struct hc_meta { char final_url[HC_URL_MAX];
• hc_meta (struct, include/http_cache.h:44)
• hc_parse_http_date (function, include/http_cache.h:56) time_t hc_parse_http_date(const char *s); - } hc_class; typedef struct hc_meta { char final_url[HC_URL_MAX]; char content_type[HC_TYPE_MAX];
• by (function, include/http_cache.h:59) * something to reuse it by (validator, max-age or Expires). */ int hc_storable(l
• hc_lifetime (function, include/http_cache.h:63) long hc_lifetime(const hc_meta *m); - True when a response may be stored: 200, no no-store, body within HC_MAX_ENTRY, and * something to
• hc_store (type_alias, include/http_cache.h:66) typedef struct hc_store hc_store;
• hc_close (function, include/http_cache.h:72) void hc_close(hc_store *s);
• hc_body_free (function, include/http_cache.h:78) void hc_body_free(uint8_t *body, size_t len);
• hc_clear (function, include/http_cache.h:84) void hc_clear(hc_store *s); - ML-KEM keys and empties the directory when the sealed key cannot be opened. hc_status hc_open(hc_sto
• FREEDOM_LOCAL_STORE_H (macro, include/local_store.h:2) #define FREEDOM_LOCAL_STORE_H
• LS_KEY_LEN (macro, include/local_store.h:26) #define LS_KEY_LEN
• LS_SALT_LEN (macro, include/local_store.h:27) #define LS_SALT_LEN
• LS_NONCE_LEN (macro, include/local_store.h:28) #define LS_NONCE_LEN

Internal vs External Edges

• Internal resolved imports (EXTRACTED): 19
• Cross-boundary resolved imports (EXTRACTED): 5

Connections

• [EXTRACTED] depends_on community 1 <-> 7 (strength 0.9): Extracted import edge crosses communities: gui/browser_ui.c imports include/cached_fetch.h.
• [EXTRACTED] depends_on community 7 <-> 8 (strength 0.9): Extracted import edge crosses communities: include/cached_fetch.h imports include/secure_fetch.h.
• [EXTRACTED] depends_on community 7 <-> 5 (strength 0.9): Extracted import edge crosses communities: src/disk_store.c imports include/util.h.

Risks

• [layer strict] include/http_cache.h (presentation) -> include/local_store.h (data_access)
• [layer strict] src/http_cache.c (presentation) -> include/disk_store.h (data_access)
• [layer strict] tests/test_http_cache.c (testing) -> include/http_cache.h (presentation)

Open Questions

• Why do 16 file(s) lack file-level docs (e.g. include/cached_fetch.h)? What purpose do they serve?
• What would break if the most connected file in src: http_cache changed?
• Should src: http_cache be split, given cohesion 0.79?

Sources

• include/cached_fetch.h
• include/disk_store.h
• include/http_cache.h
• include/local_store.h
• include/pq_seal.h
• src/cached_fetch.c
• src/disk_store.c
• src/http_cache.c
• src/local_store.c
• src/pq_seal.c
• src/profile.c
• tests/test_cached_fetch.c
• tests/test_disk_store.c
• tests/test_http_cache.c
• tests/test_local_store.c
• tests/test_pq_seal.c

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