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a/src/utils/fileudi.cpp |
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b/src/utils/fileudi.cpp |
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#include "md5.h"
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#include "md5.h"
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#include "base64.h"
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#include "base64.h"
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using std::string;
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using std::string;
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// Debug only
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#ifdef PATHHASH_HEX
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static void md5hexprint(const unsigned char hash[16], string &out)
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{
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out.erase();
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out.reserve(33);
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static const char hex[]="0123456789abcdef";
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for (int i = 0; i < 16; i++) {
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out.append(1, hex[hash[i] >> 4]);
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out.append(1, hex[hash[i] & 0x0f]);
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}
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}
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#endif
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// Size of the hashed result (base64 of 16 bytes of md5, minus 2 pad chars)
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// Size of the hashed result (base64 of 16 bytes of md5, minus 2 pad chars)
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#define HASHLEN 22
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#define HASHLEN 22
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// Convert longish paths by truncating and appending hash of path
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// Convert longish paths by truncating and appending hash of path
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// The full length of the base64-encoded (minus pad) of the md5 is 22 chars
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// The full length of the base64-encoded (minus pad) of the md5 is 22 chars
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MD5_CTX ctx;
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MD5_CTX ctx;
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MD5Init(&ctx);
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MD5Init(&ctx);
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MD5Update(&ctx, (const unsigned char *)(path.c_str()+maxlen-HASHLEN),
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MD5Update(&ctx, (const unsigned char *)(path.c_str()+maxlen-HASHLEN),
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path.length() - (maxlen - HASHLEN));
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path.length() - (maxlen - HASHLEN));
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MD5Final(chash, &ctx);
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MD5Final(chash, &ctx);
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#ifdef PATHHASH_HEX
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string hex;
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md5hexprint(chash, hex);
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printf("hex [%s]\n", hex.c_str());
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#endif
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// Encode it to ascii. This shouldn't be strictly necessary as
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// Encode it to ascii. This shouldn't be strictly necessary as
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// xapian terms can be binary
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// xapian terms can be binary
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string hash;
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string hash;
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base64_encode(string((char *)chash, 16), hash);
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base64_encode(string((char *)chash, 16), hash);
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