[822] | 1 | /* |
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| 2 | * |
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| 3 | * Author : Gérald FENOY |
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| 4 | * |
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| 5 | * Copyright 2017 GeoLabs SARL. All rights reserved. |
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| 6 | * |
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| 7 | * This work was supported by public funds received in the framework of GEOSUD, |
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| 8 | * a project (ANR-10-EQPX-20) of the program "Investissements d'Avenir" managed |
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| 9 | * by the French National Research Agency |
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| 10 | * |
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[839] | 11 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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[822] | 12 | * of this software and associated documentation files (the "Software"), to deal |
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| 13 | * in the Software without restriction, including without limitation the rights |
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| 14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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| 15 | * copies of the Software, and to permit persons to whom the Software is |
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| 16 | * furnished to do so, subject to the following conditions: |
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| 17 | * |
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| 18 | * The above copyright notice and this permission notice shall be included in |
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| 19 | * all copies or substantial portions of the Software. |
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| 20 | * |
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 22 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 23 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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| 24 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 25 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 26 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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| 27 | * THE SOFTWARE. |
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| 28 | */ |
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| 29 | |
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| 30 | #include "sshapi.h" |
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[854] | 31 | #include "service_internal.h" |
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[822] | 32 | |
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| 33 | SSHCON *sessions[MAX_PARALLEL_SSH_CON]; |
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| 34 | |
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| 35 | /** |
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| 36 | * Wait until one or more file descriptor has been changed for the socket for a |
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| 37 | * time defined by timeout |
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| 38 | * @param socket_fd int defining the sockket file descriptor |
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| 39 | * @param session an exeisting LIBSSH2_SESSION |
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| 40 | */ |
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| 41 | int waitsocket(int socket_fd, LIBSSH2_SESSION *session) |
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| 42 | { |
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| 43 | struct timeval timeout; |
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| 44 | int rc; |
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| 45 | fd_set fd; |
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| 46 | fd_set *writefd = NULL; |
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| 47 | fd_set *readfd = NULL; |
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| 48 | int dir; |
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| 49 | |
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| 50 | timeout.tv_sec = 10; |
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| 51 | timeout.tv_usec = 0; |
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| 52 | |
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| 53 | FD_ZERO(&fd); |
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| 54 | |
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| 55 | FD_SET(socket_fd, &fd); |
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| 56 | |
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| 57 | /* now make sure we wait in the correct direction */ |
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| 58 | dir = libssh2_session_block_directions(session); |
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| 59 | |
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| 60 | |
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| 61 | if(dir & LIBSSH2_SESSION_BLOCK_INBOUND) |
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| 62 | readfd = &fd; |
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| 63 | |
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| 64 | if(dir & LIBSSH2_SESSION_BLOCK_OUTBOUND) |
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| 65 | writefd = &fd; |
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| 66 | |
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| 67 | rc = select(socket_fd + 1, readfd, writefd, NULL, &timeout); |
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| 68 | |
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| 69 | return rc; |
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| 70 | } |
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| 71 | |
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| 72 | /** |
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| 73 | * Connect to a remote host using SSH protocol |
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| 74 | * @param conf maps The main configuration maps |
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| 75 | * @return the libssh2 sessions pointer or NULL in case any failure occured. |
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| 76 | */ |
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| 77 | SSHCON *ssh_connect(maps* conf){ |
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| 78 | unsigned long hostaddr; |
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| 79 | int i, use_pw = 1; |
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| 80 | struct sockaddr_in sin; |
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| 81 | const char *fingerprint; |
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| 82 | SSHCON *result=(SSHCON*)malloc((2*sizeof(int))+sizeof(LIBSSH2_SESSION*)+sizeof(LIBSSH2_SFTP*)); |
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| 83 | result->sock_id=NULL; |
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| 84 | result->index=NULL; |
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| 85 | result->session=NULL; |
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| 86 | result->sftp_session=NULL; |
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| 87 | const char *user; |
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| 88 | const char *password=NULL; |
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| 89 | const char *public_key; |
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| 90 | char *private_key; |
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| 91 | int rc; |
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| 92 | FILE *local; |
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| 93 | char mem[1024 * 1000]; |
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| 94 | char error[1024]; |
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| 95 | int port=22; |
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| 96 | |
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[854] | 97 | map* hpc_config=getMapFromMaps(conf,"lenv","configId"); |
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| 98 | map* hpc_host=getMapFromMaps(conf,hpc_config->value,"ssh_host"); |
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| 99 | map* hpc_port=getMapFromMaps(conf,hpc_config->value,"ssh_port"); |
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| 100 | map* hpc_user=getMapFromMaps(conf,hpc_config->value,"ssh_user"); |
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| 101 | map* hpc_password=getMapFromMaps(conf,hpc_config->value,"ssh_password"); |
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| 102 | map* hpc_public_key=getMapFromMaps(conf,hpc_config->value,"ssh_key"); |
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[877] | 103 | |
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[854] | 104 | char ip[100]; |
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| 105 | struct hostent *my_hostent; |
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| 106 | struct in_addr **addrs; |
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| 107 | |
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| 108 | if (hpc_host != NULL) { |
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| 109 | // Fetch ip address for the hostname |
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| 110 | if ( (my_hostent = gethostbyname( hpc_host->value ) ) == NULL){ |
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| 111 | herror("gethostbyname"); |
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| 112 | setMapInMaps(conf,"lenv","message",_("Issue when invoking gethostbyname!")); |
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| 113 | return NULL; |
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| 114 | } |
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| 115 | |
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| 116 | addrs = (struct in_addr **) my_hostent->h_addr_list; |
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| 117 | |
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| 118 | for(i = 0; addrs[i] != NULL; i++) { |
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| 119 | strcpy(ip , inet_ntoa(*addrs[i]) ); |
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| 120 | break; |
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| 121 | } |
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| 122 | } |
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[822] | 123 | |
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| 124 | #ifdef WIN32 |
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| 125 | WSADATA wsadata; |
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| 126 | int err; |
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| 127 | err = WSAStartup(MAKEWORD(2,0), &wsadata); |
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| 128 | if (err != 0) { |
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| 129 | sprintf(error, "WSAStartup failed with error: %d\n", err); |
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| 130 | setMapInMaps(conf,"lenv","message",error); |
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| 131 | return NULL; |
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| 132 | } |
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| 133 | #endif |
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| 134 | |
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| 135 | if (hpc_host != NULL) { |
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[854] | 136 | hostaddr = inet_addr(ip); |
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[822] | 137 | } else { |
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| 138 | setMapInMaps(conf,"lenv","message","No host parameter found in your main.cfg file!\n"); |
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| 139 | return NULL; |
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| 140 | } |
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| 141 | |
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| 142 | // Default port is 22 |
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| 143 | if(hpc_port!=NULL){ |
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| 144 | port=atoi(hpc_port->value); |
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| 145 | } |
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| 146 | |
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| 147 | // In case there is no HPC > user the it must failed |
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| 148 | if (hpc_user != NULL) { |
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| 149 | user = hpc_user->value; |
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| 150 | }else{ |
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| 151 | setMapInMaps(conf,"lenv","message","No user parameter found in your main.cfg file!"); |
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| 152 | return NULL; |
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| 153 | } |
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| 154 | |
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| 155 | // TODO: in case password is available but there is also the public key |
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| 156 | // defined, then we can consider this password as the pass phrase. |
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| 157 | if (hpc_password != NULL) { |
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| 158 | password = hpc_password->value; |
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| 159 | }else{ |
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| 160 | use_pw=-1; |
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| 161 | if (hpc_public_key != NULL) { |
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| 162 | public_key = hpc_public_key->value; |
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| 163 | private_key = strdup(hpc_public_key->value); |
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| 164 | private_key[strlen(public_key)-4]=0; |
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| 165 | }else{ |
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| 166 | setMapInMaps(conf,"lenv","message","No method found to authenticate!"); |
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| 167 | return NULL; |
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| 168 | } |
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| 169 | } |
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| 170 | |
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| 171 | rc = libssh2_init (0); |
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| 172 | if (rc != 0) { |
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| 173 | sprintf (error, "libssh2 initialization failed (%d)\n", rc); |
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| 174 | setMapInMaps(conf,"lenv","message",error); |
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| 175 | return NULL; |
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| 176 | } |
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| 177 | |
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| 178 | result->sock_id = socket(AF_INET, SOCK_STREAM, 0); |
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| 179 | sin.sin_family = AF_INET; |
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| 180 | sin.sin_port = htons(port); |
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| 181 | sin.sin_addr.s_addr = hostaddr; |
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| 182 | if (connect(result->sock_id, (struct sockaddr*)(&sin),sizeof(struct sockaddr_in)) != 0) { |
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| 183 | setMapInMaps(conf,"lenv","message","Failed to connect to remote host!"); |
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| 184 | return NULL; |
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| 185 | } |
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| 186 | |
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| 187 | result->session = libssh2_session_init(); |
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| 188 | result->sftp_session = NULL; |
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| 189 | map* tmp=getMapFromMaps(conf,"lenv","nb_sessions"); |
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| 190 | if(tmp!=NULL){ |
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| 191 | char nb_sessions[10]; |
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| 192 | int nb_sess=atoi(tmp->value); |
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| 193 | sprintf(nb_sessions,"%d",nb_sess+1); |
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| 194 | setMapInMaps(conf,"lenv","nb_sessions",nb_sessions); |
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| 195 | result->index=nb_sess+1; |
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| 196 | sessions[nb_sess+1]=result; |
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| 197 | }else{ |
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| 198 | setMapInMaps(conf,"lenv","nb_sessions","0"); |
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| 199 | sessions[0]=result; |
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| 200 | result->index=0; |
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| 201 | } |
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| 202 | |
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| 203 | if (!result->session) |
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| 204 | return NULL; |
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| 205 | |
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[862] | 206 | libssh2_session_set_blocking(result->session, 1); |
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[822] | 207 | |
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| 208 | while ((rc = libssh2_session_handshake(result->session, result->sock_id)) |
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| 209 | == LIBSSH2_ERROR_EAGAIN); |
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| 210 | |
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| 211 | if (rc) { |
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| 212 | sprintf(error, "Failure establishing SSH session: %d\n", rc); |
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| 213 | setMapInMaps(conf,"lenv","message",error); |
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| 214 | return NULL; |
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| 215 | } |
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| 216 | |
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| 217 | fingerprint = libssh2_hostkey_hash(result->session, LIBSSH2_HOSTKEY_HASH_SHA1); |
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| 218 | |
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| 219 | if (use_pw>0) { |
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| 220 | while ((rc = libssh2_userauth_password(result->session, user, password)) == |
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| 221 | LIBSSH2_ERROR_EAGAIN); |
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| 222 | if (rc) { |
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| 223 | setMapInMaps(conf,"lenv","message","Authentication by password failed."); |
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| 224 | ssh_close(conf); |
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| 225 | return NULL; |
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| 226 | } |
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| 227 | } else { |
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| 228 | while ((rc = libssh2_userauth_publickey_fromfile(result->session, user, |
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| 229 | public_key, |
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| 230 | private_key, |
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| 231 | password)) == |
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| 232 | LIBSSH2_ERROR_EAGAIN); |
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| 233 | if (rc) { |
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| 234 | setMapInMaps(conf,"lenv","message","Authentication by public key failed"); |
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| 235 | ssh_close(conf); |
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| 236 | return NULL; |
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| 237 | } |
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| 238 | free(private_key); |
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| 239 | } |
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| 240 | |
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| 241 | return result; |
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| 242 | |
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| 243 | } |
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| 244 | |
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| 245 | /** |
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| 246 | * Get the number of opened SSH connections |
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| 247 | * @param conf maps pointer to the main configuration maps |
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| 248 | * @return the number of opened SSH connections |
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| 249 | */ |
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| 250 | int ssh_get_cnt(maps* conf){ |
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| 251 | int result=0; |
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[854] | 252 | map* myMap=getMapFromMaps(conf,"lenv","nb_sessions"); |
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[822] | 253 | if(myMap!=NULL){ |
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| 254 | result=atoi(myMap->value); |
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| 255 | } |
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| 256 | return result; |
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| 257 | } |
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| 258 | |
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| 259 | /** |
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| 260 | * Verify if a file exists on the remote host |
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| 261 | * @param conf maps pointer to the main configuration maps |
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| 262 | * @param targetPath const char* defining the path for storing the file on the |
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| 263 | * remote host |
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| 264 | * @return true in case of success, false if failure occured |
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| 265 | */ |
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[839] | 266 | size_t ssh_file_exists(maps* conf,const char* targetPath,int cnt){ |
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[822] | 267 | size_t result=-1; |
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| 268 | if(cnt>0) |
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| 269 | cnt-=1; |
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| 270 | int rc; |
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| 271 | LIBSSH2_SFTP_ATTRIBUTES attrs; |
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| 272 | LIBSSH2_SFTP_HANDLE *sftp_handle; |
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| 273 | do{ |
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| 274 | sftp_handle = |
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| 275 | libssh2_sftp_open(sessions[cnt]->sftp_session, targetPath, LIBSSH2_FXF_READ, |
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| 276 | LIBSSH2_SFTP_S_IRUSR|LIBSSH2_SFTP_S_IWUSR| |
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| 277 | LIBSSH2_SFTP_S_IRGRP|LIBSSH2_SFTP_S_IROTH); |
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| 278 | if (!sftp_handle) { |
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| 279 | fprintf(stderr, "Unable to open file with SFTP: %d %ld\n",__LINE__, |
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| 280 | libssh2_sftp_last_error(sessions[cnt]->sftp_session)); |
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| 281 | return 0; |
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| 282 | } |
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| 283 | }while(!sftp_handle); |
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[860] | 284 | #ifdef SSH_DEBUG |
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[822] | 285 | fprintf(stderr, "libssh2_sftp_open() is done, get file information\n"); |
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[860] | 286 | #endif |
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[822] | 287 | do { |
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| 288 | rc = libssh2_sftp_stat_ex(sessions[cnt]->sftp_session, targetPath, strlen(targetPath), |
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| 289 | LIBSSH2_SFTP_LSTAT, &attrs ); |
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| 290 | if (rc<0 && |
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| 291 | (libssh2_session_last_errno(sessions[cnt]->session) != LIBSSH2_ERROR_EAGAIN)) |
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| 292 | { |
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| 293 | fprintf(stderr, "error trying to fstat_ex, returned %d\n", rc); |
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| 294 | break; |
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| 295 | } |
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| 296 | else |
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| 297 | { |
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[860] | 298 | #ifdef SSH_DEBUG |
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[822] | 299 | fprintf(stderr, "Stat Data: RetCode=%d\n", rc); |
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| 300 | fprintf(stderr, "Stat Data: Size=%llu\n", attrs.filesize); |
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| 301 | fprintf(stderr, "Stat Data: Perm=%lx\n", attrs.permissions); |
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| 302 | fprintf(stderr, "Stat Data: mtime=%lu\n", attrs.mtime); |
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[860] | 303 | #endif |
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[822] | 304 | if(rc==0) |
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| 305 | break; |
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| 306 | result=attrs.filesize; |
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| 307 | } |
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| 308 | } while (true); |
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| 309 | libssh2_sftp_close(sftp_handle); |
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| 310 | //libssh2_sftp_shutdown(sessions[cnt]->sftp_session); |
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| 311 | |
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| 312 | return result; |
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| 313 | } |
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| 314 | |
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| 315 | /** |
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| 316 | * Upload a file over an opened SSH connection |
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| 317 | * @param conf maps pointer to the main configuration maps |
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| 318 | * @param localPath const char* defining the local path for accessing the file |
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| 319 | * @param targetPath const char* defining the path for storing the file on the |
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| 320 | * remote host |
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| 321 | * @return true in case of success, false if failure occured |
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| 322 | */ |
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[839] | 323 | bool ssh_copy(maps* conf,const char* localPath,const char* targetPath,int cnt){ |
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[822] | 324 | char mem[1024 * 1000]; |
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| 325 | size_t nread; |
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| 326 | size_t memuse=0; |
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| 327 | time_t start; |
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| 328 | long total = 0; |
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| 329 | int duration; |
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| 330 | int rc; |
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| 331 | LIBSSH2_SFTP_HANDLE *sftp_handle; |
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| 332 | //map* myMap=getMapFromMaps(conf,"lenv","cnt_session"); |
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| 333 | if(getMapFromMaps(conf,"lenv","cnt_session")!=NULL){ |
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| 334 | char tmp[10]; |
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| 335 | sprintf(tmp,"%d",cnt+1); |
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| 336 | setMapInMaps(conf,"lenv","cnt_session",tmp); |
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| 337 | }else |
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| 338 | setMapInMaps(conf,"lenv","cnt_session","0"); |
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| 339 | FILE *local = fopen(localPath, "rb"); |
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| 340 | if (!local) { |
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| 341 | fprintf(stderr, "Can't open local file %s\n", localPath); |
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[839] | 342 | return false; |
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[822] | 343 | } |
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[854] | 344 | |
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[822] | 345 | do { |
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| 346 | sessions[cnt]->sftp_session = libssh2_sftp_init(sessions[cnt]->session); |
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| 347 | if (!sessions[cnt]->sftp_session && |
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| 348 | (libssh2_session_last_errno(sessions[cnt]->session) != LIBSSH2_ERROR_EAGAIN)) { |
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| 349 | |
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| 350 | fprintf(stderr, "Unable to init SFTP session\n"); |
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| 351 | return false; |
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| 352 | } |
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[860] | 353 | if(!sessions[cnt]->sftp_session) |
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| 354 | zSleep(10); |
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[822] | 355 | } while (!sessions[cnt]->sftp_session); |
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| 356 | |
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| 357 | do { |
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| 358 | sftp_handle = |
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| 359 | libssh2_sftp_open(sessions[cnt]->sftp_session, targetPath, |
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| 360 | LIBSSH2_FXF_WRITE|LIBSSH2_FXF_CREAT|LIBSSH2_FXF_TRUNC, |
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| 361 | LIBSSH2_SFTP_S_IRUSR|LIBSSH2_SFTP_S_IWUSR| |
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| 362 | LIBSSH2_SFTP_S_IRGRP|LIBSSH2_SFTP_S_IROTH); |
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| 363 | |
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| 364 | if (!sftp_handle && |
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| 365 | (libssh2_session_last_errno(sessions[cnt]->session) != LIBSSH2_ERROR_EAGAIN)) { |
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| 366 | |
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| 367 | fprintf(stderr, "Unable to open file with SFTP\n"); |
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| 368 | return false; |
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| 369 | } |
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[860] | 370 | if(!sftp_handle) |
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| 371 | zSleep(10); |
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[822] | 372 | } while (!sftp_handle); |
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| 373 | start = time(NULL); |
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| 374 | |
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| 375 | do { |
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| 376 | nread = fread(&mem[memuse], 1, sizeof(mem)-memuse, local); |
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| 377 | if (nread <= 0) { |
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| 378 | if (memuse > 0) |
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| 379 | nread = 0; |
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| 380 | else |
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| 381 | break; |
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| 382 | } |
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| 383 | memuse += nread; |
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| 384 | total += nread; |
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| 385 | |
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| 386 | while ((rc = libssh2_sftp_write(sftp_handle, mem, memuse)) == |
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| 387 | LIBSSH2_ERROR_EAGAIN) { |
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| 388 | waitsocket(sessions[cnt]->sock_id, sessions[cnt]->session); |
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| 389 | } |
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| 390 | if(rc < 0) |
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| 391 | break; |
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| 392 | |
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| 393 | if(memuse - rc) { |
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| 394 | memmove(&mem[0], &mem[rc], memuse - rc); |
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| 395 | memuse -= rc; |
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| 396 | } |
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| 397 | else |
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| 398 | memuse = 0; |
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| 399 | |
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| 400 | } while (rc > 0); |
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| 401 | |
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| 402 | duration = (int)(time(NULL)-start); |
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| 403 | fclose(local); |
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[839] | 404 | libssh2_sftp_close_handle(sftp_handle); |
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[822] | 405 | |
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| 406 | libssh2_sftp_shutdown(sessions[cnt]->sftp_session); |
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| 407 | return true; |
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| 408 | } |
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| 409 | |
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| 410 | /** |
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| 411 | * Download a file over an opened SSH connection |
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| 412 | * @param conf maps pointer to the main configuration maps |
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| 413 | * @param localPath const char* defining the local path for storing the file |
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| 414 | * @param targetPath const char* defining the path for accessing the file on the |
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| 415 | * remote host |
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[854] | 416 | * @return 0 in case of success, -1 if failure occured |
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[822] | 417 | */ |
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[839] | 418 | int ssh_fetch(maps* conf,const char* localPath,const char* targetPath,int cnt){ |
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[822] | 419 | size_t nread; |
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| 420 | size_t memuse=0; |
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| 421 | time_t start; |
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| 422 | long total = 0; |
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| 423 | int duration; |
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| 424 | int rc; |
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| 425 | LIBSSH2_SFTP_HANDLE *sftp_handle; |
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| 426 | FILE *local = fopen(localPath, "wb"); |
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| 427 | if (!local) { |
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| 428 | fprintf(stderr, "Can't open local file %s\n", localPath); |
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| 429 | return -1; |
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| 430 | } |
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| 431 | |
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| 432 | do { |
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| 433 | sessions[cnt]->sftp_session = libssh2_sftp_init(sessions[cnt]->session); |
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| 434 | if (!sessions[cnt]->sftp_session && |
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| 435 | (libssh2_session_last_errno(sessions[cnt]->session) != LIBSSH2_ERROR_EAGAIN)) { |
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| 436 | fprintf(stderr, "Unable to init SFTP session\n"); |
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[854] | 437 | return -1; |
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[822] | 438 | } |
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[860] | 439 | if(!sessions[cnt]->sftp_session) |
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[886] | 440 | zSleep(1); |
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[822] | 441 | } while (!sessions[cnt]->sftp_session); |
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[854] | 442 | do { |
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| 443 | sftp_handle = libssh2_sftp_open(sessions[cnt]->sftp_session, targetPath, |
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| 444 | LIBSSH2_FXF_READ, 0); |
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| 445 | if (!sftp_handle) { |
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| 446 | if (libssh2_session_last_errno(sessions[cnt]->session) != LIBSSH2_ERROR_EAGAIN) { |
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| 447 | fprintf(stderr, " ** Unable to open file with SFTP\n"); |
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| 448 | return -1; |
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| 449 | } |
---|
| 450 | else { |
---|
| 451 | waitsocket(sessions[cnt]->sock_id, sessions[cnt]->session); |
---|
| 452 | } |
---|
| 453 | } |
---|
[862] | 454 | if(!sftp_handle) |
---|
[886] | 455 | zSleep(1); |
---|
[854] | 456 | } while (!sftp_handle); |
---|
[822] | 457 | |
---|
[854] | 458 | int result=0; |
---|
| 459 | do { |
---|
[822] | 460 | do { |
---|
[862] | 461 | char* mem=(char*)malloc(16*1024*1024); |
---|
| 462 | rc = libssh2_sftp_read(sftp_handle, mem,16*1024*1024); |
---|
[854] | 463 | if(rc > 0) { |
---|
| 464 | fwrite(mem, rc, 1, local); |
---|
| 465 | } |
---|
[862] | 466 | free(mem); |
---|
[854] | 467 | } while (rc > 0); |
---|
| 468 | |
---|
| 469 | if(rc != LIBSSH2_ERROR_EAGAIN) { |
---|
| 470 | result=-1; |
---|
| 471 | break; |
---|
| 472 | } |
---|
| 473 | |
---|
| 474 | struct timeval timeout; |
---|
| 475 | fd_set fd; |
---|
| 476 | timeout.tv_sec = 10; |
---|
| 477 | timeout.tv_usec = 0; |
---|
[822] | 478 | |
---|
[854] | 479 | FD_ZERO(&fd); |
---|
[822] | 480 | |
---|
[854] | 481 | FD_SET(sessions[cnt]->sock_id, &fd); |
---|
[822] | 482 | |
---|
[854] | 483 | rc = select(sessions[cnt]->sock_id+1, &fd, &fd, NULL, &timeout); |
---|
| 484 | if(rc <= 0) { |
---|
| 485 | if(rc==0) |
---|
| 486 | fprintf(stderr, "SFTP download timed out: %d\n", rc); |
---|
| 487 | else |
---|
| 488 | fprintf(stderr, "SFTP download error: %d\n", rc); |
---|
| 489 | return -1; |
---|
| 490 | } |
---|
[860] | 491 | |
---|
[854] | 492 | } while (1); |
---|
[822] | 493 | duration = (int)(time(NULL)-start); |
---|
| 494 | fclose(local); |
---|
[839] | 495 | libssh2_sftp_close_handle(sftp_handle); |
---|
[822] | 496 | libssh2_sftp_shutdown(sessions[cnt]->sftp_session); |
---|
| 497 | return 0; |
---|
| 498 | } |
---|
| 499 | |
---|
| 500 | /** |
---|
| 501 | * Execute a command over an opened SSH connection |
---|
| 502 | * @param conf maps pointer to the main configuration maps |
---|
| 503 | * @param command const char pointer to the command to be executed |
---|
| 504 | * @return bytecount resulting from the execution of the command |
---|
| 505 | */ |
---|
[839] | 506 | int ssh_exec(maps* conf,const char* command,int cnt){ |
---|
[822] | 507 | LIBSSH2_CHANNEL *channel; |
---|
| 508 | int rc; |
---|
| 509 | int bytecount = 0; |
---|
| 510 | int exitcode; |
---|
| 511 | char *exitsignal=(char *)"none"; |
---|
| 512 | while( (channel = libssh2_channel_open_session(sessions[cnt]->session)) == NULL && |
---|
| 513 | libssh2_session_last_error(sessions[cnt]->session,NULL,NULL,0) == LIBSSH2_ERROR_EAGAIN ) { |
---|
[860] | 514 | waitsocket(sessions[cnt]->sock_id, sessions[cnt]->session); |
---|
[822] | 515 | } |
---|
| 516 | if( channel == NULL ){ |
---|
| 517 | fprintf(stderr,"Error\n"); |
---|
[854] | 518 | return -1; |
---|
[822] | 519 | } |
---|
| 520 | while( (rc = libssh2_channel_exec(channel, command)) == LIBSSH2_ERROR_EAGAIN ) { |
---|
| 521 | waitsocket(sessions[cnt]->sock_id, sessions[cnt]->session); |
---|
| 522 | } |
---|
| 523 | if( rc != 0 ) { |
---|
| 524 | fprintf(stderr,"Error\n"); |
---|
| 525 | return -1; |
---|
| 526 | } |
---|
| 527 | |
---|
| 528 | map* tmpPath=getMapFromMaps(conf,"main","tmpPath"); |
---|
| 529 | map* uuid=getMapFromMaps(conf,"lenv","usid"); |
---|
| 530 | char *logPath=(char*)malloc((strlen(tmpPath->value)+strlen(uuid->value)+11)*sizeof(char)); |
---|
| 531 | sprintf(logPath,"%s/exec_out_%s",tmpPath->value,uuid->value); |
---|
[886] | 532 | |
---|
[822] | 533 | FILE* logFile=fopen(logPath,"wb"); |
---|
[851] | 534 | free(logPath); |
---|
[822] | 535 | while(true){ |
---|
| 536 | int rc; |
---|
| 537 | do { |
---|
| 538 | char buffer[0x4000]; |
---|
| 539 | rc = libssh2_channel_read( channel, buffer, sizeof(buffer) ); |
---|
| 540 | |
---|
| 541 | if( rc > 0 ){ |
---|
| 542 | int i; |
---|
| 543 | bytecount += rc; |
---|
| 544 | buffer[rc]=0; |
---|
[886] | 545 | |
---|
[822] | 546 | fprintf(logFile,"%s",buffer); |
---|
| 547 | fflush(logFile); |
---|
| 548 | } |
---|
| 549 | } |
---|
| 550 | while( rc > 0 ); |
---|
| 551 | |
---|
| 552 | if( rc == LIBSSH2_ERROR_EAGAIN ) { |
---|
| 553 | waitsocket(sessions[cnt]->sock_id, sessions[cnt]->session); |
---|
| 554 | } |
---|
| 555 | else |
---|
| 556 | break; |
---|
| 557 | } |
---|
| 558 | fclose(logFile); |
---|
| 559 | exitcode = 127; |
---|
| 560 | while( (rc = libssh2_channel_close(channel)) == LIBSSH2_ERROR_EAGAIN ) |
---|
| 561 | waitsocket(sessions[cnt]->sock_id, sessions[cnt]->session); |
---|
| 562 | |
---|
| 563 | if( rc == 0 ) { |
---|
| 564 | exitcode = libssh2_channel_get_exit_status( channel ); |
---|
| 565 | libssh2_channel_get_exit_signal(channel, &exitsignal, |
---|
| 566 | NULL, NULL, NULL, NULL, NULL); |
---|
| 567 | } |
---|
| 568 | |
---|
| 569 | if (exitsignal) |
---|
| 570 | fprintf(stderr, "\nGot signal: %s\n", exitsignal); |
---|
| 571 | else |
---|
| 572 | fprintf(stderr, "\nEXIT: %d bytecount: %d\n", exitcode, bytecount); |
---|
| 573 | |
---|
| 574 | libssh2_channel_free(channel); |
---|
| 575 | |
---|
| 576 | return bytecount; |
---|
| 577 | } |
---|
| 578 | |
---|
| 579 | /** |
---|
| 580 | * Close an opened SSH connection |
---|
| 581 | * @param conf maps pointer to the main configuration maps |
---|
| 582 | * @param con SSHCON pointer to the SSH connection |
---|
| 583 | * @return true in case of success, false if failure occured |
---|
| 584 | */ |
---|
| 585 | bool ssh_close_session(maps* conf,SSHCON* con){ |
---|
[862] | 586 | if(con==NULL) |
---|
| 587 | return true; |
---|
[822] | 588 | while (libssh2_session_disconnect(con->session, "Normal Shutdown, Thank you for using the ZOO-Project sshapi") |
---|
| 589 | == LIBSSH2_ERROR_EAGAIN); |
---|
| 590 | #ifdef WIN32 |
---|
| 591 | closesocket(con->sock_id); |
---|
| 592 | #else |
---|
| 593 | close(con->sock_id); |
---|
| 594 | #endif |
---|
[839] | 595 | libssh2_session_free(con->session); |
---|
[862] | 596 | con=NULL; |
---|
[822] | 597 | return true; |
---|
| 598 | } |
---|
| 599 | |
---|
| 600 | /** |
---|
| 601 | * Close all the opened SSH connections |
---|
| 602 | * @param conf maps pointer to the main configuration maps |
---|
| 603 | * @return true in case of success, false if failure occured |
---|
| 604 | */ |
---|
| 605 | bool ssh_close(maps* conf){ |
---|
| 606 | int i,nb_sessions; |
---|
| 607 | map* tmp=getMapFromMaps(conf,"lenv","nb_sessions"); |
---|
| 608 | if(tmp!=NULL){ |
---|
| 609 | nb_sessions=atoi(tmp->value); |
---|
| 610 | for(i=0;i<nb_sessions;i++) |
---|
| 611 | ssh_close_session(conf,sessions[i]); |
---|
| 612 | } |
---|
| 613 | libssh2_exit(); |
---|
| 614 | return true; |
---|
| 615 | } |
---|
[839] | 616 | |
---|
| 617 | bool addToUploadQueue(maps** conf,maps* input){ |
---|
| 618 | map* queueMap=getMapFromMaps(*conf,"uploadQueue","length"); |
---|
| 619 | if(queueMap==NULL){ |
---|
| 620 | maps* queueMaps=createMaps("uploadQueue"); |
---|
| 621 | queueMaps->content=createMap("length","0"); |
---|
| 622 | addMapsToMaps(conf,queueMaps); |
---|
| 623 | freeMaps(&queueMaps); |
---|
| 624 | free(queueMaps); |
---|
| 625 | queueMap=getMapFromMaps(*conf,"uploadQueue","length"); |
---|
| 626 | } |
---|
| 627 | maps* queueMaps=getMaps(*conf,"uploadQueue"); |
---|
| 628 | int queueIndex=atoi(queueMap->value); |
---|
| 629 | if(input!=NULL){ |
---|
| 630 | if(getMap(input->content,"cache_file")!=NULL){ |
---|
| 631 | map* length=getMap(input->content,"length"); |
---|
| 632 | if(length==NULL){ |
---|
| 633 | addToMap(input->content,"length","1"); |
---|
| 634 | length=getMap(input->content,"length"); |
---|
| 635 | } |
---|
| 636 | int len=atoi(length->value); |
---|
| 637 | int i=0; |
---|
| 638 | for(i=0;i<len;i++){ |
---|
| 639 | |
---|
| 640 | map* tmp[2]={getMapArray(input->content,"localPath",i), |
---|
| 641 | getMapArray(input->content,"targetPath",i)}; |
---|
| 642 | |
---|
[862] | 643 | setMapArray(queueMaps->content,"input",queueIndex+i,input->name); |
---|
| 644 | setMapArray(queueMaps->content,"localPath",queueIndex+i,tmp[0]->value); |
---|
| 645 | setMapArray(queueMaps->content,"targetPath",queueIndex+i,tmp[1]->value); |
---|
| 646 | |
---|
[839] | 647 | } |
---|
| 648 | } |
---|
| 649 | } |
---|
| 650 | return true; |
---|
| 651 | } |
---|
| 652 | |
---|
[886] | 653 | int fileMd5Check(maps** conf,const char* localPath,const char* targetPath){ |
---|
| 654 | if(strstr(localPath,".zca")!=NULL){ |
---|
[888] | 655 | char *logPath=NULL; |
---|
| 656 | char *command=(char*)malloc(((2*strlen(targetPath))+42)*sizeof(char)); |
---|
| 657 | sprintf(command,"(md5sum %s | awk {'print $1'}) && touch %s",targetPath,targetPath); |
---|
[886] | 658 | if(ssh_exec(*conf,command,ssh_get_cnt(*conf))<=0){ |
---|
| 659 | return -1; |
---|
| 660 | }else{ |
---|
| 661 | struct stat f_status={}; |
---|
| 662 | map* usid=getMapFromMaps(*conf,"lenv","usid"); |
---|
| 663 | map* tmpMap=getMapFromMaps(*conf,"main","tmpPath"); |
---|
| 664 | char* tmpPath=zStrdup(localPath); |
---|
| 665 | tmpPath[strlen(tmpPath)-2]='m'; |
---|
| 666 | tmpPath[strlen(tmpPath)-1]='d'; |
---|
| 667 | free(command); |
---|
| 668 | logPath=(char*)malloc((strlen(tmpMap->value)+strlen(usid->value)+11)*sizeof(char)); |
---|
| 669 | sprintf(logPath,"%s/exec_out_%s",tmpMap->value,usid->value); |
---|
| 670 | int ts=stat(logPath, &f_status); |
---|
| 671 | if(ts==0) { |
---|
| 672 | char* fcontent=(char*)malloc(sizeof(char)*(f_status.st_size+1)); |
---|
| 673 | FILE* f=fopen(logPath,"rb"); |
---|
| 674 | fread(fcontent,f_status.st_size,1,f); |
---|
| 675 | fcontent[f_status.st_size-1]=0; |
---|
| 676 | fclose(f); |
---|
| 677 | free(logPath); |
---|
| 678 | struct stat f_status1={}; |
---|
| 679 | int ts1=stat(tmpPath, &f_status1); |
---|
| 680 | if(ts1==0) { |
---|
| 681 | char* fcontent1=(char*)malloc(sizeof(char)*(f_status.st_size+1)); |
---|
| 682 | FILE* f1=fopen(tmpPath,"rb"); |
---|
| 683 | fread(fcontent1,f_status1.st_size,1,f1); |
---|
| 684 | fcontent1[f_status1.st_size]=0; |
---|
| 685 | fclose(f1); |
---|
| 686 | free(tmpPath); |
---|
| 687 | if(strcmp(fcontent,fcontent1)==0){ |
---|
| 688 | free(fcontent); |
---|
| 689 | free(fcontent1); |
---|
| 690 | return 0; |
---|
| 691 | }else{ |
---|
| 692 | free(fcontent); |
---|
| 693 | free(fcontent1); |
---|
| 694 | return -1; |
---|
| 695 | } |
---|
| 696 | }else{ |
---|
| 697 | free(tmpPath); |
---|
| 698 | free(fcontent); |
---|
| 699 | return -1; |
---|
| 700 | } |
---|
| 701 | } |
---|
| 702 | free(logPath); |
---|
| 703 | free(tmpPath); |
---|
| 704 | } |
---|
| 705 | } |
---|
| 706 | return -1; |
---|
| 707 | } |
---|
| 708 | |
---|
[839] | 709 | bool runUpload(maps** conf){ |
---|
| 710 | SSHCON *test=ssh_connect(*conf); |
---|
| 711 | if(test==NULL){ |
---|
| 712 | return false; |
---|
| 713 | } |
---|
| 714 | map* queueLengthMap=getMapFromMaps(*conf,"uploadQueue","length"); |
---|
| 715 | maps* queueMaps=getMaps(*conf,"uploadQueue"); |
---|
| 716 | if(queueLengthMap!=NULL){ |
---|
| 717 | int cnt=atoi(queueLengthMap->value); |
---|
| 718 | int i=0; |
---|
| 719 | for(i=0;i<cnt;i++){ |
---|
| 720 | map* argv[3]={ |
---|
| 721 | getMapArray(queueMaps->content,"input",i), |
---|
| 722 | getMapArray(queueMaps->content,"localPath",i), |
---|
| 723 | getMapArray(queueMaps->content,"targetPath",i) |
---|
| 724 | }; |
---|
[886] | 725 | if(fileMd5Check(conf,argv[1]->value,argv[2]->value)<0){ |
---|
| 726 | /**/zooLock* lck; |
---|
| 727 | if((lck=lockFile(*conf,argv[1]->value,'w'))!=NULL){/**/ |
---|
| 728 | if(ssh_copy(*conf,argv[1]->value,argv[2]->value,ssh_get_cnt(*conf))!=true){ |
---|
| 729 | char* templateStr=_("Unable to copy over SSH the file requested for setting the value of %s."); |
---|
| 730 | char *tmpMessage=(char*)malloc((strlen(templateStr)+strlen(argv[0]->value)+1)*sizeof(char)); |
---|
| 731 | sprintf(tmpMessage,templateStr,argv[0]->value); |
---|
| 732 | setMapInMaps(*conf,"lenv","message",tmpMessage); |
---|
| 733 | free(tmpMessage); |
---|
| 734 | unlockFile(*conf,lck); |
---|
| 735 | return false; |
---|
| 736 | } |
---|
| 737 | /**/unlockFile(*conf,lck); |
---|
| 738 | }else{ |
---|
| 739 | setMapInMaps(*conf,"lenv","message",_("Unable to lock the file for upload!")); |
---|
[854] | 740 | return false; |
---|
[886] | 741 | }/**/ |
---|
| 742 | } |
---|
[839] | 743 | } |
---|
| 744 | } |
---|
[862] | 745 | while (libssh2_session_disconnect(test->session, "Normal Shutdown, Thank you for using the ZOO-Project sshapi") |
---|
| 746 | == LIBSSH2_ERROR_EAGAIN); |
---|
| 747 | #ifdef WIN32 |
---|
| 748 | closesocket(test->sock_id); |
---|
| 749 | #else |
---|
| 750 | close(test->sock_id); |
---|
| 751 | #endif |
---|
| 752 | libssh2_session_free(test->session); |
---|
| 753 | free(test); |
---|
| 754 | test=NULL; |
---|
| 755 | sessions[ssh_get_cnt(*conf)-1]=NULL; |
---|
| 756 | maps* tmp=getMaps(*conf,"lenv"); |
---|
| 757 | addIntToMap(tmp->content,"nb_sessions",ssh_get_cnt(*conf)-1); |
---|
| 758 | |
---|
[839] | 759 | return true; |
---|
| 760 | } |
---|