--- /dev/null
- ** data to limit visible line lengths to 72 characters.
+/*
+** 2022-11-18
+**
+** The author disclaims copyright to this source code. In place of
+** a legal notice, here is a blessing:
+**
+** May you do good and not evil.
+** May you find forgiveness for yourself and forgive others.
+** May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This is a SQLite extension for converting in either direction
+** between a (binary) blob and base64 text. Base64 can transit a
+** sane USASCII channel unmolested. It also plays nicely in CSV or
+** written as TCL brace-enclosed literals or SQL string literals,
+** and can be used unmodified in XML-like documents.
+**
+** This is an independent implementation of conversions specified in
+** RFC 4648, done on the above date by the author (Larry Brasfield)
+** who thereby has the right to put this into the public domain.
+**
+** The conversions meet RFC 4648 requirements, provided that this
+** C source specifies that line-feeds are included in the encoded
- char c = (nac<=nti)? *pIn++ : PAD_CHAR;
++** data to limit visible line lengths to 72 characters and to
++** terminate any encoded blob having non-zero length.
+**
+** Length limitations are not imposed except that the runtime
+** SQLite string or blob length limits are respected. Otherwise,
+** any length binary sequence can be represented and recovered.
+** Generated base64 sequences, with their line-feeds included,
+** can be concatenated; the result converted back to binary will
+** be the concatenation of the represented binary sequences.
+**
+** This SQLite3 extension creates a function, base64(x), which
+** either: converts text x containing base64 to a returned blob;
+** or converts a blob x to returned text containing base64. An
+** error will be thrown for other input argument types.
+**
+** This code relies on UTF-8 encoding only with respect to the
+** meaning of the first 128 (7-bit) codes matching that of USASCII.
+** It will fail miserably if somehow made to try to convert EBCDIC.
+** Because it is table-driven, it could be enhanced to handle that,
+** but the world and SQLite have moved on from that anachronism.
+**
+** To build the extension:
+** Set shell variable SQDIR=<your favorite SQLite checkout directory>
+** *Nix: gcc -O2 -shared -I$SQDIR -fPIC -o base64.so base64.c
+** OSX: gcc -O2 -dynamiclib -fPIC -I$SQDIR -o base64.dylib base64.c
+** Win32: gcc -O2 -shared -I%SQDIR% -o base64.dll base64.c
+** Win32: cl /Os -I%SQDIR% base64.c -link -dll -out:base64.dll
+*/
+
+#include <assert.h>
+
+#ifndef SQLITE_SHELL_EXTFUNCS /* Guard for #include as built-in extension. */
+#include "sqlite3ext.h"
+#endif
+
+SQLITE_EXTENSION_INIT1;
+
+#define PC 0x80 /* pad character */
+#define WS 0x81 /* whitespace */
+#define ND 0x82 /* Not above or digit-value */
+#define PAD_CHAR '='
+
+typedef unsigned char ubyte;
+
+static const ubyte b64DigitValues[128] = {
+ /* HT LF VT FF CR */
+ ND,ND,ND,ND, ND,ND,ND,ND, ND,WS,WS,WS, WS,WS,ND,ND,
+ /* US */
+ ND,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,ND,
+ /*sp + / */
+ WS,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,62, ND,ND,ND,63,
+ /* 0 1 5 9 = */
+ 52,53,54,55, 56,57,58,59, 60,61,ND,ND, ND,PC,ND,ND,
+ /* A O */
+ ND, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11,12,13,14,
+ /* P Z */
+ 15,16,17,18, 19,20,21,22, 23,24,25,ND, ND,ND,ND,ND,
+ /* a o */
+ ND,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
+ /* p z */
+ 41,42,43,44, 45,46,47,48, 49,50,51,ND, ND,ND,ND,ND
+};
+
+static const char b64Numerals[64+1]
+= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+#define BX_DV_PROTO(c) ((((ubyte)(c))<0x80)? b64DigitValues[c] : 0x80)
+#define IS_BX_DIGIT(bdp) (((ubyte)(bdp))<0x80)
+#define IS_BX_WS(bdp) ((bdp)==WS)
+#define IS_BX_PAD(bdp) ((bdp)==PC)
+#define BX_NUMERAL(dv) (b64Numerals[dv])
+/* Width of base64 lines. Should be an integer multiple of 4. */
+#define B64_DARK_MAX 72
+
+/* Encode a byte buffer into base64 text. If pSep!=0, it's a C string
+** to be appended to encoded groups to limit their length to B64_DARK_MAX
+** or to terminate the last group (to aid concatenation.)
+*/
+static char* toBase64( ubyte *pIn, int nbIn, char *pOut, char *pSep ){
+ int nCol = 0;
+ *pOut = 0;
+ while( nbIn > 0 ){
+ static signed char ncio[] = { 0, 2, 3, 4 };
+ int nbi = (nbIn > 3)? 3 : nbIn;
+ signed char nc;
+ int nbe;
+ unsigned long qv = (ubyte)*pIn++;
+ for( nbe=1; nbe<3; ++nbe ){
+ ubyte b = (nbe<nbi)? *pIn++ : 0;
+ qv = (qv<<8) | b;
+ }
+ nc = ncio[nbi];
+ nbIn -= nbi;
+ for( nbe=3; nbe>=0; --nbe ){
+ char ce = (nbe<nc)? BX_NUMERAL((ubyte)(qv & 0x3f)) : PAD_CHAR;
+ qv >>= 6;
+ pOut[nbe] = ce;
+ }
+ pOut += 4;
+ if( pSep && ((nCol += 4)>=B64_DARK_MAX || nbIn<=0) ){
+ char *p = pSep;
+ while( *p ) *pOut++ = *p++;
+ nCol = 0;
+ }
+ *pOut = 0;
+ }
+ return pOut;
+}
+
+/* Skip over text which is not base64 numeral(s). */
+static char * skipNonB64( char *s ){
+ char c;
+ while( (c = *s) && !IS_BX_DIGIT(BX_DV_PROTO(c)) ) ++s;
+ return s;
+}
+
+/* Decode base64 text into a byte buffer. */
+static ubyte* fromBase64( char *pIn, int ncIn, ubyte *pOut ){
+ if( ncIn>0 && pIn[ncIn-1]=='\n' ) --ncIn;
+ while( ncIn>0 && *pIn!=PAD_CHAR ){
+ static signed char nboi[] = { 0, 0, 1, 2, 3 };
+ char *pUse = skipNonB64(pIn);
+ unsigned long qv = 0L;
+ int nti, nbo, nac;
+ ncIn -= (pUse - pIn);
+ pIn = pUse;
+ nti = (ncIn>4)? 4 : ncIn;
++ ncIn -= nti;
+ nbo = nboi[nti];
+ if( nbo==0 ) break;
+ for( nac=0; nac<4; ++nac ){
- --ncIn;
++ char c = (nac<nti)? *pIn++ : b64Numerals[0];
+ ubyte bdp = BX_DV_PROTO(c);
- case WS:
+ switch( bdp ){
- nti = 0;
- break;
+ case ND:
++ /* Treat non-digits as pad, but they terminate decode too. */
++ ncIn = 0;
++ /* fall thru */
++ case WS:
++ /* Treat whitespace as pad */
++ /* fall thru */
+ case PC:
+ bdp = 0;
+ --nbo;
+ /* fall thru */
+ default: /* bdp is the digit value. */
+ qv = qv<<6 | bdp;
+ break;
+ }
+ }
+ nti = 2;
+ while( nbo-- > 0 ){
+ *pOut++ = (qv >> (8*nti--))&0xff;
+ }
+ }
+ return pOut;
+}
+
+/* This function does the work for the SQLite base64(x) UDF. */
+static void base64(sqlite3_context *context, int na, sqlite3_value *av[]){
+ int nb, nc, nv = sqlite3_value_bytes(av[0]);
+ int nvMax = sqlite3_limit(sqlite3_context_db_handle(context),
+ SQLITE_LIMIT_LENGTH, -1);
+ char *cBuf;
+ ubyte *bBuf;
+ assert(na==1);
+ switch( sqlite3_value_type(av[0]) ){
+ case SQLITE_BLOB:
+ nb = nv;
+ nc = 4*(nv+2/3); /* quads needed */
+ nc += (nc+(B64_DARK_MAX-1))/B64_DARK_MAX + 1; /* LFs and a 0-terminator */
+ if( nvMax < nc ){
+ sqlite3_result_error(context, "blob expanded to base64 too big.", -1);
+ }
+ cBuf = sqlite3_malloc(nc);
+ if( !cBuf ) goto memFail;
+ bBuf = (ubyte*)sqlite3_value_blob(av[0]);
+ nc = (int)(toBase64(bBuf, nb, cBuf, "\n") - cBuf);
+ sqlite3_result_text(context, cBuf, nc, sqlite3_free);
+ break;
+ case SQLITE_TEXT:
+ nc = nv;
+ nb = 3*((nv+3)/4); /* may overestimate due to LF and padding */
+ if( nvMax < nb ){
+ sqlite3_result_error(context, "blob from base64 may be too big.", -1);
+ }else if( nb<1 ){
+ nb = 1;
+ }
+ bBuf = sqlite3_malloc(nb);
+ if( !bBuf ) goto memFail;
+ cBuf = (char *)sqlite3_value_text(av[0]);
+ nb = (int)(fromBase64(cBuf, nc, bBuf) - bBuf);
+ sqlite3_result_blob(context, bBuf, nb, sqlite3_free);
+ break;
+ default:
+ sqlite3_result_error(context, "base64 accepts only blob or text.", -1);
+ break;
+ }
+ return;
+ memFail:
+ sqlite3_result_error(context, "base64 OOM", -1);
+}
+
+/*
+** Establish linkage to running SQLite library.
+*/
+#ifndef SQLITE_SHELL_EXTFUNCS
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_base_init
+#else
+static int sqlite3_base64_init
+#endif
+(sqlite3 *db, char **pzErr, const sqlite3_api_routines *pApi){
+ SQLITE_EXTENSION_INIT2(pApi);
+ (void)pzErr;
+ return sqlite3_create_function
+ (db, "base64", 1,
+ SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_DIRECTONLY|SQLITE_UTF8,
+ 0, base64, 0, 0);
+}
+
+/*
+** Define some macros to allow this extension to be built into the shell
+** conveniently, in conjunction with use of SQLITE_SHELL_EXTFUNCS. This
+** allows shell.c, as distributed, to have this extension built in.
+*/
+#define BASE64_INIT(db) sqlite3_base64_init(db, 0, 0)
+#define BASE64_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */
- C Get\sclean\sbuilds\sfor\sMS\stools.\sAdd\sbuild\sexamples\sfor\sextension\sglommer\s(basexx.c)\nMake\ssure\sextensions\sbuild\sfor\sdynamic\sload\sand\sbuilt\sinto\sshell.
- D 2022-11-21T02:18:12.614
-C Fix\slast\sfunction\spointer\sin\ssqlite3Apis\sinit.\sReported\sat\shttps://sqlite.org/forum/info/eba0faa96d
-D 2022-11-22T15:41:32.493
++C Add\stest/basexx1.test\sto\stest\sis_base85(t),\sbase85(x)\sand\sbase64(x).\sSync\sw/trunk.
++D 2022-11-22T19:04:09.365
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
--F Makefile.in 78e4c4916f2c3993a8a454018745ff02094a8029d449d0c22db98f1cf8260420
++F Makefile.in 4a16a05d210813cf8448b3143c80f73335a08a79728569de49d6984442b3f4cf
F Makefile.linux-gcc f609543700659711fbd230eced1f01353117621dccae7b9fb70daa64236c5241
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F README.md 8b8df9ca852aeac4864eb1e400002633ee6db84065bd01b78c33817f97d31f5e
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F ext/misc/anycollseq.c 5ffdfde9829eeac52219136ad6aa7cd9a4edb3b15f4f2532de52f4a22525eddb
F ext/misc/appendvfs.c 9642c7a194a2a25dca7ad3e36af24a0a46d7702168c4ad7e59c9f9b0e16a3824
- F ext/misc/base64.c e611e8ce552b16251c1691191d95912f9e03400637311dbd458062d2d0b95e2a
++F ext/misc/base64.c e18d1d35c5eaadb189aff7b5abe7d73655f46396031ce006d24c5fa2f7ee74e8
+F ext/misc/base85.c 2c680ca7733f9a86f5d292fec71d10777290e68e7ae59d90597ae75fc44a88b6
+F ext/misc/basexx.c 678dcc83894f78c26fd3662b322886777cc26bf2b40809236cd2abdad532a33c
F ext/misc/blobio.c a867c4c4617f6ec223a307ebfe0eabb45e0992f74dd47722b96f3e631c0edb2a
F ext/misc/btreeinfo.c d28ce349b40054eaa9473e835837bad7a71deec33ba13e39f963d50933bfa0f9
F ext/misc/carray.c b752f46411e4e47e34dce6f0c88bc8e51bb821ba9e49bfcd882506451c928f69
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- F ext/wasm/tester1.html 624ec41cd9f78a1f2b6d7df70aaa7a6394396b1f2455ecbd6de5775c1275b121
- F ext/wasm/tester1.js bff806de454de115922d78c056f11d523ec7ed9ed3839d4e21433a9f72558b88
+ F ext/wasm/tester1-worker.html 5ef353348c37cf2e4fd0b23da562d3275523e036260b510734e9a3239ba8c987
-F ext/wasm/tester1.c-pp.html 74aa9b31c75f12490653f814b53c3dd39f40cd3f70d6a53a716f4e8587107399
-F ext/wasm/tester1.c-pp.js 0c129495d057c77788b59715152d51f9bf9002ebbcce759ef8b028272ce3519d
++F ext/wasm/tester1.c-pp.html 74aa9b31c75f12490653f814b53c3dd39f40cd3f70d6a53a716f4e8587107399 w ext/wasm/tester1.html
++F ext/wasm/tester1.c-pp.js 0c129495d057c77788b59715152d51f9bf9002ebbcce759ef8b028272ce3519d w ext/wasm/tester1.js
+ F ext/wasm/tests/opfs/concurrency/index.html bb9b0f6da86df34c67fa506db9c45b7c4cf0045a211611cc6b8d2b53fa983481
+ F ext/wasm/tests/opfs/concurrency/test.js 5993c08657d547d3a26b78ff3480122aed2b7361823bc127e96e558931093aff
+ F ext/wasm/tests/opfs/concurrency/worker.js df065bb386ff994951f7fbdd76e12f16e58fbef0e929b2caf74553359da40afc
F ext/wasm/version-info.c 3b36468a90faf1bbd59c65fd0eb66522d9f941eedd364fabccd72273503ae7d5
- F ext/wasm/wasmfs.make edfd60691d10fd19ada4c061280fd7fbe4cf5f6bf6b913268e8ebedfccea6ab5
+ F ext/wasm/wasmfs.make 8fea9b4f3cde06141de1fc4c586ab405bd32c3f401554f4ebb18c797401a678d
F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
F magic.txt 5ade0bc977aa135e79e3faaea894d5671b26107cc91e70783aa7dc83f22f3ba0
F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
F src/resolve.c efea4e5fbecfd6d0a9071b0be0d952620991673391b6ffaaf4c277b0bb674633
F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
- F src/select.c 9886d6669f5787471aab6ae52af76fad90b53edb1c218fc9ed9d953363bc5184
+ F src/select.c 3fc60a8f0b54db15e86584c5fd68dbf63c20fe86886a39267ce7dfc17b68853d
-F src/shell.c.in 16740a86346ba9823f92528ec588f2b74f68166dac965dabd19883ace230f11d
+F src/shell.c.in 49b6aeaf950b9b7a74aca7b80e6d004ed32f0a16d2c9471e34587cc4755d5eaa
F src/sqlite.h.in 100fc660c2f19961b8ed8437b9d53d687de2f8eb2b96437ec6da216adcb643ca
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F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
F src/tclsqlite.c 4e64ba300a5a26e0f1170e09032429faeb65e45e8f3d1a7833e8edb69fc2979e
--F src/test1.c 40c9a40975512985762f87b83d0c63e4904833a9fe78cbcca664a37095301b1d
++F src/test1.c 09ad3f2bf5f0efe70eb16e460054954b36be8ed09dfcafa0642b37d25d379f6f
F src/test2.c 827446e259a3b7ab949da1542953edda7b5117982576d3e6f1c24a0dd20a5cef
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F test/badutf2.test f310fd3b24a491b6b77bccdf14923b85d6ebcce751068c180d93a6b8ff854399
++F test/basexx1.test 46454750d40888174eebcd4206c9d16cfeb7a0ffa3f04a00ab2e69a6140f1587
F test/bc_common.tcl b5e42d80305be95697e6370e015af571e5333a1c
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- P 07543d23a98c2a851393a2674e59d3cf1df37c244fb451cb7436f49c95c1423f
- R 1b52ba3002b9af5fda34f27079570bff
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++R 8126534722ae13c74b5c3a4e8e3049df
U larrybr
- Z 7a2c313c3d99c0b1eaaafc6ea380893a
-Z d9d2dcaeb03b2f8d48cf12bc3dcb589d
++Z a05ff028bb3426fe686b2f69a24ff770
# Remove this line to create a well-formed Fossil manifest.
--- /dev/null
--- /dev/null
++# 2022 November 22
++#
++# The author disclaims copyright to this source code. In place of
++# a legal notice, here is a blessing:
++#
++# May you do good and not evil.
++# May you find forgiveness for yourself and forgive others.
++# May you share freely, never taking more than you give.
++#
++#***********************************************************************
++#
++
++set testdir [file dirname $argv0]
++source $testdir/tester.tcl
++set testprefix basexx
++
++if {[catch {load_static_extension db basexx} error]} {
++ puts "Skipping basexx tests, hit load error: $error"
++ finish_test; return
++}
++
++# Empty blobs encode to empty strings.
++do_execsql_test 100 {
++ SELECT base64(x'')||base85(x'');
++} {{}}
++
++# Empty strings decode to empty blobs.
++do_execsql_test 101 {
++ SELECT hex(x'01'||base64('')||base85('')||x'02');
++} {0102}
++
++# Basic base64 encoding
++do_execsql_test 102 {
++ SELECT base64(x'000102030405');
++ SELECT base64(x'0001020304');
++ SELECT base64(x'00010203');
++} {{AAECAwQF
++} {AAECAwQ=
++} {AAECAw==
++}}
++
++# Basic base64 decoding with pad chars
++do_execsql_test 103 {
++ SELECT hex(base64('AAECAwQF'));
++ SELECT hex(base64('AAECAwQ='));
++ SELECT hex(base64('AAECAw=='));
++} {000102030405 0001020304 00010203}
++
++# Basic base64 decoding without pad chars and with whitespace
++do_execsql_test 104 {
++ SELECT hex(base64(' AAECAwQF '));
++ SELECT hex(base64(' AAECAwQ'));
++ SELECT hex(base64('AAECAw '));
++} {000102030405 0001020304 00010203}
++
++# Basic base85 encoding
++do_execsql_test 105 {
++ SELECT base85(x'000102030405');
++ SELECT base85(x'0001020304');
++ SELECT base85(x'00010203');
++} {{##/2,#2/
++} {##/2,#*
++} {##/2,
++}}
++
++# Basic base85 decoding with and without whitespace
++do_execsql_test 106 {
++ SELECT hex(base85('##/2,#2/'));
++ SELECT hex(base85('##/2,#*'));
++ SELECT hex(base85('##/2,'));
++ SELECT hex(base85(' ##/2,#2/ '));
++ SELECT hex(base85(' ##/2,#*'));
++ SELECT hex(base85('##/2, '));
++} {000102030405 0001020304 00010203 000102030405 0001020304 00010203}
++
++# Round-trip some random blobs.
++do_execsql_test 107 {
++ CREATE TEMP TABLE rb( len int, b blob ) STRICT;
++ INSERT INTO rb(len) VALUES (1),(2),(3),(4),(5),(150),(151),(152),(153),(1054);
++ UPDATE rb SET b = randomblob(len);
++ SELECT len, base64(base64(b))=b, base85(base85(b))=b
++ FROM rb ORDER BY len;
++} {1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 150 1 1 151 1 1 152 1 1 153 1 1 1054 1 1}
++
++# Same round-trip but with space or junk prepended and/or appended or not.
++do_execsql_test 108 {
++ CREATE TEMP TABLE junk(j text, rank int);
++ INSERT INTO junk VALUES ('',0),(' ',1),('~',2);
++ SELECT len, base64(j.j||base64(b)||j.j)=b, base85(j.j||base85(b)||j.j)=b
++ FROM rb r, junk j WHERE j.rank=(r.len+r.len/25)%3 ORDER BY len;
++} {1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 150 1 1 151 1 1 152 1 1 153 1 1 1054 1 1}
++
++# Exercise the fail-on-too-large result feature.
++# ToDo: See if extension code for this can be eliminated.
++
++set inLimit [sqlite3_limit db SQLITE_LIMIT_LENGTH -1]
++sqlite3_limit db SQLITE_LIMIT_LENGTH 1060
++
++do_catchsql_test 109 {
++ SELECT len, base64(b) FROM rb WHERE len>200;
++} {1 {string or blob too big}}
++
++do_catchsql_test 110 {
++ SELECT len, base85(b) FROM rb WHERE len>200;
++} {1 {string or blob too big}}
++
++sqlite3_limit db SQLITE_LIMIT_LENGTH $inLimit
++
++do_execsql_test 111 {
++ SELECT is_base85(base85(x'123456')), is_base85('~');
++} {1 0}
++
++finish_test
projects / thirdparty / sqlite.git / commitdiff
